Home

AKC%2055%20Manual%20..

1. SC4condenser configuration 10 15 2002 i Configure 54 Unit 4 Mumber af fans Minimum run time TZ min Liquid Temp Setpoint Stage l 60 0 F Stage i 75_ 0 F Stage 3 390 0 F Range l aa Number of fans List box None Six Eight The number of HVAC condenser fans controlled in this unit Minimum run time 0 to 60 The number of minutes that a stage must run before being turned off Liquid Temp Setpoint 0 0 to 150 0 one setpoint per stage The stage will be turned on at setpoint plus range and turned off after the stage above is turned off at setpoint minus range Range 0 0 to 150 0 one setpoint per stage The stage will be turned on at setpoint plus range and turned off after the stage above is turned off at setpoint minus range SC4 alarms configuration SC4 alarms are configured as are RTU alarms SC4 board amp points configuration SC4 board amp points are configured as are RTU board amp points AKC 55 System Manual RC IU B3 22 4 97 Chapter 4 3 AKC 55 lighting zone setup Davee Lighting Configuration Lighting configuration starts with selection of Configuration from the Main Menu A simple lighting menu appears as at left below First select Lighting zones from the menu and the screen at right is presented Loysfe23 2002 Tok eee No of Zones ie Wo of Powerlink Panels oul Wo of Cutler Hammer Panels 1 Lighting Zones zones share photocells Ho Name Type 50
2. Don t skip when DP above Dual Temp control Alt target Range Dual Temp relay needed Alt target Range System Manual O to 12 The number of defrosts each day 1 to 180 The number of minutes after which defrost will terminate if termination has not occurred on a setting configured in the previous screen Often called fail safe defrost time time of day one field for each of the number of defrosts configured in the first line of the screen The time each defrost will initiate List box Yes No When Yes is selected tThe AKC 55 has the ability to determine based on analysis of current and accumulated data to determine if each defrost is needed When a defrost is not needed it is not initiated thus reducing energy cost and enhancing product life 1 to 255 Minimum number of hours between de frosts List box Yes No Whether or not to override defrost skipping on a dewpoint setting next question 1 0 to 3276 0 Defrost will occur regardless of skipping calculations whenever dewpoint is above this setting List box Yes No A Yes answer allows the circuit to be used in two temperature ranges and creates a digital input for changeover of temperature range 50 0 to 150 0 1 0 to 20 0 The second temperature and range for a dual temperature evaporator List box Yes No 50 0 to 150 0 1 0 to 20 0 The second temperature and range for a dual temperature evaporator RC IU B3 22 AKC 55 Devt
3. Num of shutdn schedules O to 8 The number of shutdown schedules that will be entered on the page s immediately following this one Generate shutdown OI List box Yes No Whether or not a digital input on off input will be configured by which refrigeration can be shut down for cleaning or other service Shutdown schedules Paging down we reach the shutdown page s Loysoryzooz E Evaporators Shut domn Schedules Sched 1 time on_ _ 7 Sched 1 time of 7 1lF 00 AM Sched L d rs s 62 ones eae T Sched 1 holidays 7 12345678 Sched oS We Te oo 7 1lF 00 sn Sched time off _ 7 lF 00 AM Sehed dars ee een eee T Sched holidays 7 12345678 PG DM for more There are two schedules per page Each schedule has a field for time on time off days of the week and holidays AM and PM are entered by selecting the first character using the key to toggle the arrow keys to edit mode then using the up or down arrow to change the character to A or P as needed The same means is used to select the days of the week once the cursor is placed in the space to the right of the question and holidays Holidays are given dates when Store Info is configured Configuring evaporator alarms Evaporator alarms are configured on the last page for each evaporator The right illustration shows the screen when it is opened for the first time The right illustration shows the screen with all of its fields r
4. configuration Heating configuration for rooftop units begins with selection of Heating from the rooftop configuration menu AKC 55 System Manual RC IU B3 22 4 57 lo f1is 200F 09 04 56 AM Ji Configure ETU 1 Heating Ra Number of Zone sensors 7f Controlling Sensor Taone Temp 1 1 Num of he at relm stages 71 Target temp stage 1 7 72 0 F Pre delay Omin Post delay Omin Pangen a a eee ape ee es eee ee 2 Pale 07F Auxiliary Heat type T taging F n speed aeo aa aaa THigh Speed Night Setback 2 2 2 6 2 TYes Wight setback affset 7 5 0 F Override switch aaa TYes Owerride duration 7 60 min Mum of schedules T ab High supply temp lockout Yes Lockout abowve 150_ 0 F Deadhband 2 0 F PG DM for more Number of zone sensors Controlling sensor Num of heat rclm stages Target temp stage 1 Pre delay Post delay Range Auxiliary Heat type Fan speed System Manual 0 to 5 The number of zone sensors for the rooftop Changing this number will also change the number of zone sensors in the first line of the first cooling configu ration screen List box Min Temp Control will be based on the lowest value of all temperature sensors in the unit s zone Max Temp Control will be based on the highest value of all of the temperature sensors in the unit s zone Average Control will be based on the average of all the temperature sensors in the
5. E Configure ETU Ambient temp lockout fres Wo cooling below 7 40 0 F Panyen hate ye er ae E E ee OSE Default fan fpeed THigh Speed Max suction press safety Suction Pres AA No cooling above 2 2527 2 7 85 0pei Freese FProtection TSensor Input pedal alle fb a1 E AA Sa eee AN 7 35 07F Night setback 2 eo T Yes Night setback offset 7 5 0 F Override switch soan T Yes Owerride duration 7 60 min Mum of schedules T J PR DN for more Refer to the screen above Ambient temp lockout List box Yes No Whether or not there is to be a No cooling below Range System Manual lockout based on low ambient temperature 0 0 to 100 0 The ambient temperature below which cooling will be locked out 0 0 to 9 9 The range selected creates a dead band For example if the lockout is 50 and the range is 2 cooling will be locked out at 48 and will be allowed on at 32 RC IU B3 22 AKC 55 Default fan Speed Max suction press safety No cooling above Freeze protection Setpoint Night setback Night setback offset Override switch Override duration Num of schedules RTU Heating Davee List box High Speed Low Speed The fan speed for cooling A different fan speed can be chosen for dehumidification when it is configured List box Lists every configured pressure sensor Any may be selected Only the suction pressure for the cooling compressors in
6. Locate Procedure so that the AKC 55 will recognize the Degree Master Follow this procedure 1 Enter an address from 1 to 99 that is unique among the Degree Masters in the system 2 Select Locate and press ENTER or click with your mouse 3 A message will appear requesting that you press the service pin 4 You have 10 minutes to go to the particular Degree Master you are working with and depress the service pin The service pin or button is located beneath the upper right corner of the square white label on the Degree Master 5 Use a pencil or other instrument that will fit through the access hole to depress the service button and keep it depressed for five seconds It will take the AKC 55 from 10 to 15 seconds to complete the location process after which a message box will appear on the AKC 55 telling you that the process has been successful This process must be repeated for each new or replacement Degree Master After starting the locate procedure from the AKC 55 keypad it is possible to activate the service pin from the Degree Master s display Press and hold both buttons for 3 seconds When the Degree Master enters the service mode the display will change to RS with an up arrow on the left and a down arrow on the left Pressing the lower button will now activate the service pin The down arrow will change to an asterisk as confirmation Be careful not to press the upper button Doing so will reset the Degree Maste
7. 0 to 3 The number of cooling stages in this HVAC unit List box Return Air Cooling will be controlled to satisfy a return air target temperature Average Cooling will be controlled to satisfy an average zone temperature target High Cooling will be controlled to satisfy a zone target temperature for the highest of a number of zone temperature sensors Zone l etc each supply zone temperature sensor will be available as a choice in the list Control will be based on the single selected sensor 0 1 to 100 0 The differential selected creates a control dead band around the target temperature For example if the target 1s 72 and the range is 2 the 4 71 Target temp for stage Pre delay for stage Post delay for stage Humidity adjusts target Humidity sensor Dynamic offset No offset lt Full gt Ambient temp lockout No cooling below Night setback Night setback offset Minimum ON time Minimum OFF time System Manual Desf stage will come on at 74 and will not be turned off until the temperature reaches 70 0 0 to 99 9 A separate field for each of the stages in the unit 0 to 15 The number of minutes that must elapse after target plus range is reached before the stage will come on There is one field for each stage 0 to 15 The number of minutes that must elapse after target minus range is reached before the stage will be turned off There is one field for each stage List box
8. Be sure that each sending Board Point combination is unique throughout the system If the controller at address 01 is sending from its Bd Pt address 1 02 then no other controller can have an output at its Bd Pt address 1 02 sending Rec The value of the point is being received from another controller on the host network You must enter in the Bd Pt fields the Bd Pt address of the sending point First enter the address of the RO board and point to which the load is wired or in the case of a received broadcast point enter the board and point address of the sending point List box N Closed The load on this point is wired through its normally closed contacts N Open The load on this point is wired through its normally open contacts At the bottom of the body of the screen above the icons on the same line as PG DN for more is the SORT field By default sort mode is on and entries will be sorted by Bd Pt address if sort mode is turned off points from then on will be listed in order of creation The sorting occurs when you press EXIT and will be apparent the next time you enter the screen O4 17 07 PH Points iJ Sensor Inputs Name Beast Bd Peo Type Inside Temp Mo oo o PT1LOOO Disch Press A Mo 00 0 AKES32 500 Dropleg Temp A Mo 00 0 PT1LOOO Cond Sump Lvl A No oo o EMHS 3 Inlet Temp A Mo 00 0 PT1LOOO Liquid Lvl Mo 00 0 O 5 Volts Hotwater Al Mo 00 0 PT1LOOO Hotwater Az Mo 00 0 PT1LOOO SORT On PG DN for
9. List box Yes No Determines whether or not the adaptive algorithm will be allowed to adjust suction pressure below the target if fixture temperature is above target temperature range List box Yes No Determines whether or not suction pressure will be offset according to a schedule to be specified in the following lines Time field The start time for night setback Time field The ending time for night setback RC IU B3 22 AKC 55 AKC 55 Configuring two stage systems and de superheaters System Manual Setback days Setback holidays Dave Days selection field The days on which night setback will be effective Holidays selection field The holiday numbers on which night setback will occur Holiday numbers are defined in Store Info configuration At the bottom right of the Suction Info screen are the words PG DN for more Use the controller s PG DN key to reach the next screen shown at left is the default screen in which not all the questions and fields appear the screen on the right shows all the fields Monitor suction temp Yes Display superheat temp Mo Monitor desuperheat temp ia Close ARV valves during rack shutdow Monitor desuperheat temp ia Close SRV valves during rack shutdown 3 Tes Only when suction is above target Dy oaan a a a a ere acre 7E 0 psi i Ce Uc yr tine Toa a ee Pare T 45 sec Pack on BRC 55 address 7 0 The fields and their contents
10. List box Yes No Whether or not the sump fill valve is controlled List box Yes No Whether or not the inlet tempera ture is monitored The next page deals with inverter settings if the condenser fans are variable speed and with freeze protection and dump valve operation System Manual RC IU B3 22 AKC 55 AKC 55 10 10 2002 iH Fan inverter control 7 Min Speed 150 0Max Speed 150 0 BPM at max speed T6000 Nast no Reset Ss ee ee 710 Inverter reset delay 600 sec Inverter proof delay 600 sec High pressure bypass 7275 0psi Freeze Protection TYes Freeze prot temp cutout 99_9 F Freeze prot temp cutin 99 9 F Dunp We rie ora ee eee oe TYes Dump on schedule TYes Man of dump ftchedules 76 Dump on freeze protect Ma Override pump on fra protMo Water flow monitor Ho PG DN for more Fan inverter control Min speed Max speed RPM at max speed Please see notes on Neutral Zone selection in the first evaporative condenser configuration screen List box None No variable speed drive is controlled VO An analog output also known as a VO variable output point on a Danfoss I O module will control the variable speed drive VLT A Danfoss VLT or AKD variable frequency drive will be used for motor control 1 0 to 150 0 The minimum percentage of the maxi mum RPM that the fan motors will be run Insure that the entries on this screen are within t
11. Normal above 50 0 F for 15min Normal On for BE Low zone tenp zone Temp l 1 0 0 HVAC fire Fire Stat 00 0 Normal below 50 0 F for 15min Normal On for 15min High humidity Inside Humidity 20 1 Normal above SO_ 0 amp for LSmin High supply temp Supply Air l 1 0 Normal above 50 0 F for 15min HVAC fan dow Fan AHU 1 o0 0 Mormal Off for LSmin PG DN for more High zone temp Occurs when zone temperature is above a set temperature 999 9 to 999 9 for a period of from 1 to 9999 seconds minutes or hours Low zone temp Occurs when zone temperature is below a set temperature 999 9 to 999 9 for a period of from 1 to 9999 seconds minutes or hours High humidity Occurs when zone humidity is above a set percentage the field takes values from 999 9 to 999 9 for a period of from 1 to 9999 seconds minutes or hours High supply temp Occurs when supply temperature is above a set temperature 999 9 to 999 9 for a period of from 1 to 9999 seconds minutes or hours HVAC fan down A digital alarm that can be enabled to occur when the system fan is called to run and fails to show proof digital monitor fails to read ON within the time period specified in the alarm 1 9999 seconds minutes or hours HVAC smoke if a smoke detector is configured A digital alarm that can be enabled to occur when a smoke detector reads ON for a specified time period 1 to 9999 seconds minutes or hours HVAC fire if an HVAC fire st
12. Sales AECS5 5etup E Board amp Points Zone PWRLE gt Setup lt Zone CUTLER Setups AKCES gt Setupst AKCES gt Setupst gt Setup AKCES gt Setupst AKCES gt Setupst AKCES gt Setups j AKCES gt Setupst Zone Zone Zone Zone Zone Zone 3 4 5 6 4RCES T 3 3 1 PG DN for more Zone No of Zones 0 to 30 The number of lighting zones to be config ured on this AKC 55 No of Powerlink Panels 0 to 5 The number of Square D Powerlink lighting panels to be configured No of Cutler Hammer Panels 0 to 5 The number of Cutler Hammer Pow R Line C Switchboard lighting panels to be configured Zones share photocells List box Yes No Whether or not multiple photocells are to be shared Number of photocells 0 to 8 The number of photocells Appears only if photocell sharing is enabled by a Yes answer to the previous question Name Label The name of the zone as established on its first setup page Type List box AKCSS The zone is controlled by a relay output digital output on an AKC 55 I O board PWRLK The zone is controlled by a breaker or group of breakers in a Square D Powerlink lighting panel CUTLR The zone is controlled by a breaker or group of breakers in a Cutler Hammer Pow R Line C Switchboard lighting panel To begin configuration of an AKC 55 lighting zone put the cursor on gt Setup lt and press enter The first page of the setup screen is shown in the illustrations
13. Temperature control Controlling sensor Target Type of defrost Drip down delay Termination type Davee box multi deck single deck service etc List box There is a large selection of common fixture names for each of the fixture types that can be se lected above and there is a selection User Def After making that selection you will be able to spell out your own name on the following line Label The name of a user defined fixture Any of the characters in the AKC 55 character set can be used including upper and lower case letters and symbols List box Yes No Whether or not a box door switch will be monitored appears for boxes only List box Yes No Whether or not to shut down refrigeration when the box door is open 0 to 15 The number of sensors in this fixture or circuit List box Yes No Whether or not temperature contol will be used List box Min Temp The lowest of the sensors in the fixture or on the circuit will be used for temperature control Max Temp The highest of the sensors in the fixture or on the circuit will be used for temperature control Average The average of all the sensors in the fixture or on the circuit will be used for temperature control circuit names The name of each sensor will be listed and any can be selected That sensor then will be used for temperature control 99 0 to 150 0 target 1 0 to 20 0 range The target temperature and the range about the targ
14. Yes No Whether or not comrpessors are to be cut out on low discharge temperature 0 to 255 The number of minutes that must elapse before a lockout on low discharge temperature See note on next field 0 to 300 The temperature that discharge must be below for the time specified in the preceding field before lockout on low discharge temperature occurs Note If discharge temperature rises above the setpoint the time for lockout will restart from zero List box Yes No Whether or not comrpessors are to be cut out on high discharge pressure 0 0 to 500 0 The discharge pressure at which com pressors are to be cut out 0 0 to 500 0 After a cut out on high discharge pressure the discharge pressure at which compressors are to be cut in List box Yes No Whether or not comrpessors are to be unloaded before being cut out The next page of compressor configuration deals with neutral zone control Basically neutral zone control acts to bring the current pressure toward target pressure more quickly the greater the difference between the two The screen looks like this N tr l SOME ee ee ER lt i Delay PIUS zone oie eau ere ae 7170 sec Mirus zone aAa he ee 60 sec PG DN for more AKC 55 System Manual RC IU B3 22 Compressor capacity staging patterns Desf The default settings are as shown in the screen above It is recommended that the values not be changed without a thorough understanding of
15. You may wish to read the section How demand limiting works that follows the section Lighting demand limiting before you start configuration Now return to the Energy menu one good way is to return to the Main Menu menu key select Energy then select Demand Limiting From the Demand Limiting menu select Configure These two screens look like this 4 106 system Manual RC IU B3 22 AKC 55 AKC 55 HVAC demand limiting 11 07 2002 E Board Points Utility Meter gi Conftiqure When you put the cursor on Configure the second page of the Demand Limiting Menu appears as at left below offering two choices Select Units for HVAC and Select Zones for lighting Choose Select Units and the screen at right below appears and you can begin configuring HVAC demand limiting beis screen appears 11 07 2002 L1L forszo02 11 00 16 AP El Penand Limiting mesa Configure Demand Limiting ives Emergency Unit Level Level Bakery BS Z 1 Main AHU 4 10 1o Office 5 3 1 Select Units S4 Unit 4 6 Z l HomedcGard n 7 5 3 Select zones Unit 6 5 11l Lal The fields on the demand configuration screen for HVAC right are Name first column The name of the unit as it was assigned during configu ration Every configured HVAC unit will be listed Unit The address of the AKC 55 which has the demand meter that will be used for demand limiting This can be any AKC 55 in the network that has a meter c
16. louver and AKC 55 sump settings System Manuatxt page has settings dp3G192 louver and sump control 4 33 Inverter settings Freeze protection Dump valve 03 05 16 PH HSU hii oot mye ipa a Reade Wee ue merentey ae een ees 7140 O0pei Pimp cutout o 292 code ale lt fl20 0psi Louver control enabled Yes Lourer ee ee ee a T115 0pei Lourer SUE OWE coerce es T7105 O0pei Enable sump control TYes Sump lewel empry 20 0 Sup lerel full r a 30 0 Sump lewel top off 50 0 Bid Vales esis ee ee TYes Monitor inlet temp fres PR DN for more Pump cutin Pump cutout Louver control enabled Louver cutin Louver cutout Enable sump control Sump level empty Sump level full Sump level top off Fill valve Monitor inlet temp 0 0 to 500 0 The pressure at which the pump will be turned on 0 0 to 500 0 The pressure at which the pump will be turned off List box Yes No Whether or not louvers are to be controlled 0 0 to 500 0 The pressure at which louvers will be opened 0 0 to 500 0 The pressure at which louvers will be closed List box Yes No Whether or not the sump is controlled 0 0 to 100 0 The percentage of fill at which the sump is considered empty 0 0 to 100 0 The percentage of fill at which the sump is considered full 0 0 to 100 0 Requires fill valve control The percentage of fill at which the fill valve will open and top off will begin
17. ration Refrigeration select the rack Condensers Select Evaporative for the condenser type The screen will appear as shown below System Manual RC IU B3 22 Condenser type 2 ae 6 ak TEvaporative No of punps ee nee ees mee eee Tz Daily Porat Denes een TYes Monit r sta agas o o eoa THone Control Sensei ss s6 22 TPressure Monitor droplegq temp Yes Control method qTarget Target control type lt 2 THamp stages PAGET ANE A me ere cece ae ag f 150 Opsi PG DMN for more The fields are as follows Condenser type Number of pumps Daily rotation Monitor stages Control sensor Monitor dropleg temp System Manual List box This section deals with condenser configu ration when the selection Evaporative is made in this field None There is to be no condenser control by the AKC 55 Evaporative There are evaporative condensers that are controlled by the AKC 55 The remainder of this section this screen and the next four pertain to this selection Air Cooled The AKC 55 is controlling air cooled condensers The configuration of air cooled condens ers is covered in the preceding section of this manual 0 to 2 The number of coolant pumps List box Yes No Whether or not pumps will rotate List box Individual Fans will be monitored individually with a digital input on off input created for each fan Paired Fans will be monitored in pairs with a digital input
18. 100 0 The differential selected creates a control dead band around the target temperature For example if the target is 72 and the range is 2 the stage will come on at 70 and will not be turned off until the temperature reaches 72 The pre delay and post delay must also be satisfied 50 0 to 99 9 A separate field for each of the stages in the unit 0 to 15 The number of minutes that must elapse after target plus range is reached before the stage will come on There is one field for each stage 0 to 15 The number of minutes that must elapse after target minus range is reached before the stage will be turned off There is one field for each stage List box Yes No Whether or not heating is to be locked out above a set ambient temperature next line 0 0 to 100 0 The ambient temperature above which heating will be locked out List box Yes No Whether or not the heating 4 73 RTC dehumidification configuration Night setback offset Minimum ON time Minimum OFF time Desf setpoints are to be lowered by an offset next line when the store is closed according to a schedule or schedules configured in the Store Info screens 50 0 to 50 0 The amount by which the heating setpoint set on previous page is to be lowered during non scheduled hours as set in the Store Info screens 0 to 60 The minimum number of minutes heating must run after being turned on before being turned off 0 to 60 The minimum number of
19. B3 22 4 91 01 53 06 PH HS Configure ETU 1 Fan i Air Damper i Cooling Alarms Ra Heating E Board Points R Dehumidi fy l rlSrz z 10 11 05 4M f Configure 4 Unit 4 Fan TE M tor del y tins 3 one T1O sec Monitor phase loss TYes Which phase loss monitor Mot confiqured Shutdown phase loss TYes Shutdown on smoke detect 70E Shutdown on fire alarm Yes Motor delay time 5 to 255 The fan motor runs continuously at low speed When there is a call for cooling heating or dehumidification the fan switches to high speed after the motor delay set here elapses Monitor phase loss List box Yes No Whether or not a phase loss detector is to be monitored Which phase loss monitor List box Select from any of the configured phase loss monitors List box Yes No Whether or not the fan is to be Shutdown phase loss shut down on detection of a phase loss Shutdown on smoke detect List box Yes No Whether or not the unit is to be shut down when its smoke detector is on Shutdown on fire alarm List box Yes No Whether or not the unit is to be shut down when a fire alarm monitor detects a fire alarm System Manual RC IU B3 22 AKC 55 configuration lofis zo00F iH Number of zone sensors Controlling sensor Configure 54 Unit 4 10 14 56 AM Cooling a 13 Mam of cooling stages Four Seve Penile Pte ae E eee 7 74 0 F Farg
20. Cutout setpoint 745 0 F Cutout setpoint 7110_ 0 F Stage 2 Cutin setpoint 750 0 F Cutout setpoint 745 0 F Stage 3 Cutin setpoint 750 0 F Cutout setpoint 745 0 F Minimum OM time 7 O min Minimum OM time T2222 min Minimum OFF time 7 O min Minimum OFF time TZ55 min RC IU B3 22 4 17 Configuring AKC 55 refrigeration circuits Desf The fields are as follows Number of valves 0 to 2 The number of valves used for subcooling Number of stages 1 to 3 With one valve there can be only 1 stage of subcooling With two valves there can be two stages one valve open or two If there are two valves feeding subcoolers of different capacities then there can be three stages only valve 1 open only valve 2 open or both valves open Cutin setpoint 0 0 to 120 0 each stage has a separate setpoint The temperature at which the subcooling stage will become active Temperature is measured by a sensor at the liquid outlet of the subcooler Cutout setpoint 0 0 to 110 0 each stage has a separate setpoint The temperature at which the subcooling stage will shut down Minimum ON time 0 to 255 The minimum time in minutes each stage must remain active after being cut in Minimum OFF time 0 to 255 The minimum time in minutes each stage must remain off after being cut out If there is not a distributed controller at the fixture AKC 161
21. E Configure Ca Ol OT Units 0I ndo Cancel Style Generic Data L ior Current Value f Errori 7 On Notice that after the selection is made the value field for the sensor changes from error to 0 0 F Still in the data definitions area select the blank in the second line under Name and open the list box This time select Number F from the list be careful there are several Number items The screen will look as at left below Move right to the data definition and change 0 0 F to 90 0 F which is the temperature setpoint in the strat egy we are creating and the screen will appear as at right Again the value field has changed to reflect the value of the defined point System Manual RC IU B3 22 AKC 55 AKC 55 The rules area L1fl2 2002 11 0502 CFG z 47 01 PH L1 f12 2002 11 0502 CFG i Configure Ca Ol OT i Configure Ca 0l Unites OI ndo Cancel Units DI ndo Cancel Style Generic Style Generic Data Definition Value Data Definition SIl gos z Compr Bm Temp O 0 F SIl gos z Compr Bm Temp O 0 F Num 2 o 0 F o 0 F Num ERE 30 0 F Value les Value SA e lt REE Tlerror toil Oa bee ee SS f ee TLeYrror True On On True On On Current Value 7 Error On Current Value 7 Errori On In the same manner we want now to define a sensor argument SI ppm for the leak sensor and a number argument Number ppm for the setpoint 500 It
22. EKC Degree Master and DCU case controllers VLT drives and Bitzer compressor interface 10 10 2002 ae board amp Points Belay Outputs Mane Beast Bd Fte On Fan Inv Peset A Mo W Closed Fan Inv EBpass A Mo o0 W Closed Louvers Cond 4A Wa oo W Closed Fan Furd Bun 4 Wa oo W Closed Cond Fill Viv A Mo oo0 W Closed Surge Valve A No W Closed Cond Dump Viv A Mo oo W Closed Cond Fan Al Wo oo W Closed SORT On PG DN for more Fa Board amp Points Relay outputs Digital outputs Name 15 characters any The name of the load connected to the digital output relay output The default names for the outputs automatically added during configura tion of refrigeration are shown and will suffice in many applications They can be edited character by charac ter put the cursor on the field press to enter edit mode then use the left and right arrow keys to move from space to space and the up and down arrow keys to select the character for that space When the name appears as you want it press ENTER Beast List box 4 40 System Manual RC IU B3 22 AKC 55 AKC 55 Board amp Points Sensor inputs Analog inputs Bd Pt SORT System Manual Davee No The value of the point will not be broadcast to be used in logic on other controllers Send The value of the point whether it is ON or OFF will be available on the host network for use by other controllers
23. HRS 7 1Looo Normal load OF HRS 1000 Normal load O amp HAS 7 1Loo00 Normal load 09 HES 7 1 0 Normal load 10 HES 7 1000 Normal load 11 HARS 1Loo00 In the Setup screen these are the fields Note that with each answer a box will appear in the center of the screen cautioning that proper meter function requires that the values entered here are the same as the values entered at the meter Number of CT sets Amperage Voltage num phases Collect History Use unit for demand lim Window size Normal load nn HRS 0 to 5 The number of meters sets of current trans formers connected to this meter List box entries range from 25 to 3100 A Select the amperage of the CTs List box a complete selection of supermarket voltages with number of phases following each in parentheses Pick the correct combination for this meter inbutton field Put the cursor here and press ENTER to begin setup List box Yes No Whether or not history is to be collected from this meter List box Yes No Whether or not this meter is to be used for demand limiting List box 15 20 or 30 minutes The window width is set to 15 20 or 30 minutes Every minute the window slides forward so that it always contains the most recent period of time Each minute the accumulated KW during that minute is recorded 0 to 99999 Enter the upper demand limit you do not wish to exceed for the given hour of t
24. Liquid level sensor type List box Sensor input An analog sensor is used for liquid level On Off input A digital sensor is used for liquid level None There is no liquid level sensor monitored To configure heat reclaim return to the Configure Rack menu put the cursor on Heat Reclaim and press ENTER The screen is as shown below loyloyszoo0z iH Heat reclain 2 eee TYes Num of Stages 2 252 46 0 sea T Stage LOEDE Taa S en Water Ht Buin setpoint ooa ne 7 eG on Cutout setpoint 22 2 222 7 140 0 F Sta age ce type c o a eens cake TWater Ht Eis terse pied he eee T2020 Cutout setpoint ooa 7 140 0 F Flush tyc le Z a a eee TYes Flush Cycle Start Time 12 00 AM Flush Cycle Duration 10 min Lockout on low head prestYes Lockout Pressure n ann 7 100 0pei Lockout on liquid level Yes Liquid level sensor typetSensor Input Heat reclaim List box Yes No Whether or not heat reclaim is present and controlled Num of stages 1 or 2 The number of stages of heat reclaim Stage 1 type List box Water Ht The stage is used for heating water HVAC The stage heats HVAC supply air Cutin setpoint 99 0 to 200 0 The temperature at which the stage will be turned on Cutout setpoint 99 0 to 200 0 The temperature at which the stage will be turned off Stage 2 type The same choices as for Stage 1 type and setpoints are offered Flush Cycle List box Yes No Whether or not there is to be a flush cycl
25. Now select the type of information you want to supply We ll cover a typical cat egory right after we talk briefly about the other route configuration may take Completely Un configured AKC 55 Navigation and making changes Entering numerals Entering labels Constrained fields If the AKC 55 you are working with has no refrigeration configuration at all select Refrigeration from the Main menu and the Rack Configuration menu will appear left The only selection which can be made from this screen is Add Rack Select ing Add Rack takes you to the Configure Rack Rack Info screen right lo o1l zooF Back Confiquration Generate input for each Rack Shutdown phase loss TYes Jser Authorized The Configure Rack A screen shown at right above has information fields that can be changed by any user with a proper authorization code To make changes use the arrow keys to move the cursor to the field you want to change To enter numerals for a field like No of suction groups use the numeral keys on the controller keypad then press ENTER Labels are entries that you need to spell out The Rack label field contains a label one character in length The Oil type field is also a label field but it is 9 characters long allowing you to spell out a word or words indicating the oil type for example Mineral To enter a label place the cursor on thefield then press the key This action toggles the funct
26. When the alarm occurs it will be communi cated beyond the AKC 55 multiple times to each destination defined in the alarm routing screen at the interval set in the alarm routing screen from 10 to 99 minutes the default is every 10 minutes lt Delete gt The alarm settings will no longer appear on the screen Trip value for temperatures 999 9 to 999 9 for O to 999 9 The level at which the alarm timer begins As long as the value remains beyond the alarm limit the timer will continue to accumulate Whenever the value falls within the alarm limit the timer will be reset to zero Trip time 0 to 999 The number of minutes that must expire with the alarm value beyond the trip value before an alarm occurs Whenever the value falls within the alarm limit the timer will be reset to zero Condensers are configured by selecting Condensers on the Configure Rack menu and can be either air cooled or evaporative the two types have very different System Manual RC IU B3 22 AKC 55 Dave screens At top center below is shown the condenser screen when you first open it and at lower left is shown the same screen after Air Cooled has been selected as the type and before changes finally at lower right below is shown the configuration screen for air cooled condensers when Sat Cond Temp is selected as the Control sensor The change to saturated condensing temperature control strategy causes several of the following questions to be rep
27. Yes No Whether or not humidity will adjust the cooling target temperature List box Average Cooling target modification will be based on an average of two humidity sensors High Cooling target modification will be based on the highest of two humidity sensors Zone 1 etc each zone humidty sensor will be available as a choice in the list Cooling target modifi cation will be based on the single selected sensor 99 9 to 99 9 The number of degrees by which humidity can adjust the target temperatures Within the range of humidity limiting the offset a linear relation ship will exist between humidity and offset see also next two parameters 99 9 to 99 9 The relative humidity below which there will be no offset of target temperature 99 9 to 99 9 The relative humidity above which the maximum offset of target temperature by humidity will be applied List box Yes No Whether or not cooling is to be locked out below a set ambient temperature next line 0 0 to 100 0 The ambient temperature below which cooling will be locked out List box Yes No Whether or not the cooling setpoints are to be raised by an offset next line when the store is closed according to a schedule or schedules configured in the Store Info screens 50 0 to 50 0 The amount by which the cooling setpoint set on previous page 1s to be raised during store closed hours as set in the Store Info screen 0 to 60 The minimum number of minu
28. a specified time period 1 to 9999 seconds minutes or hours Inverter failure if variable speed is configured and the inverter bypass is monitored A digital alarm that can be enabled to occur when the inverter is in bypass for a specified time period 0 9999 seconds minutes or hours Cond fan failure A digital alarm that can be enabled to occur when a condenser fan is called to run and fails to show proof digital monitor fails to read ON within the time period specified in the alarm 1 9999 seconds minutes or hours System Manual RC IU B3 22 AKC 55 Configuring Other rack alarms Configuring Bitzer rack alarms AKC 55 System Manual Davee Unless there are Bitzer compressors on the rack the final selection on the rack alarms menu is Other As is the case with other alarm configuration pages the alarm must be enabled its action level changed from Disabled to Log Only Normal or Critical before the parameters are visible The alarms are as listed below the screen illustrations ee ee ee Type Name Address A Suction Low water temp Hotwater Cl 06 4 P Compressors Mormal below 75 0 F for IlzOmin Low liquid level Liquid Lvl C 06 3 Circuits Wormal below 10 0 4 for 90min Condenser E 5 Eitzer Low water temp if hot water heat reclaim is configured An analog alarm that occurs when water temperature is below a set temperature from 999 9 to 999 9 degrees for a period of 1 to 9999 seconds minutes
29. after the timer has reset in this manner can the alarm occur again The numeric value field for an alarm based on an analog sensor for instance pres sure temperature humidity and light level will accept values from 999 9 to 999 9 The units which are selected in the Store Info configuration screen for Units Lan guages can be in either psi or bar for pressures in either celsius or fahrenheit degrees for temperature and in either footcandles or percentage for fotocells The time value field will accept any numberal from 0 to 9999 and the time unit can be seconds minutes or hours If you wish try disabling one of the alarms just configured or any alarm you have set up Then restore the alarm to the Log Only Normal or Critical action level The default settings will not appear but rather the settings you configured This feature can be useful when you need to suspend only a few alarms on a rack Remember though that the alarms will not automatically return to enabled status as do alarms suspended with the Suspend Alarms function on the service screen see chapter 5 2 The configuration process for refrigeration HVAC and lighting allocates alarms for every configured digital and analog sensor and for each control output Depending on your needs not all alarms will be useful FAQ 1 How do I determine what trip levels to use for high and low suction pressure alarms Start by considering the target pressure that is configur
30. alarm is deactivated and will not occur or dial out Its configuration settings 1f any will remain in memory for future activation All alarms are in this state initially until you change them A description of each enabled alarm action follows Log Only The occurrence of the alarm will only be logged by the system There will be no dial out The alarm will not retrip until its causative condition has RC IU B3 22 AKC 55 Davee returned to normal and then occurred again Normal The alarm will occur when its causative condition has been true for the set time limit At this action level the alarm will dial out once It will not dial out again until its causative condition has become false and then become true again for the set time limit Critical When the alarm s causative condition has been true for the set time limit the critical alarm will occur and dial out and it will continue to dial out repeatedly as long as the causative condition remains true Repetitive dialouts will occur at the interval specified in the Alarm Routing screen See also the section on Alarm Routing Delete The alarm and its settings are removed from memory Restoration of the alarm requires manual re entry Alarms Suspended The first alarm on the first page of every rack alarms screen is an Alarms Sus pended alarm This alarm occurs whenever alarms have been suspended by an operator using the Rack Service screen When alarms are suspended if the
31. an AKC 164 Smart Case Controller The principles discussed here can also be applied to digital outputs analog inputs or any other kind of input or output In this example the meat prep room is controlled by a Smart Case Controller To find the temperature sensor we must select the case controller icon once we have arrived at the first miscellaneous alarms screen shown at right above The screen might appear as at left below System Manual RC IU B3 22 AKC 55 Ff 2003 12 18 01 PH Ff 2003 14 20 03 PH ni ni Addr i sc Alarms AEC 16x Controls 37 Addr Name Value FiAlarms Case Type 4EC l 4 Temp 53 0 F Bequlatoar Status Normal Operation 34 Prod Box D 4 34 1 F T 35 Bakery Ex D 5 33 2 F T 36 Fish Box D 6 34 4 F 0 Number of alarms fi 37 at Frep D 7 3 0 F Oo 38 Meat Box D amp 30 8 F T 39 Dairy Bax D 9 34_5 F oO 40 Mb Dairy D 10a 32 7 F T 41 Mb Dairy D 10b 34 7 F T 42 Mb Dairy D 10c 33 1 F T 43 Mb Dairy D lla 33 5 F T 44 Mb Dairy D 11b 33 2 F T 45 Mb Dairy D lle 33 4 F T SOET n PG DN for more EEEE a Number of alarms field In the first screen above you can see by the highlight that we have already moved the cursor to the sensor we want to configure an alarm for With the cursor there when we press ENTER the screen at right above appears The cursor is by default on the Number of alarms field We can enter any number from 0 to 3 We want to configure only one alarm Entering 1 i
32. are as follows Monitor suction temp Display superheat temp List box Yes No List box Yes No Monitor desuperheat temp List box Yes No Close AKV valves during rack shutdown Only when suction is above target by Delay time Rack on AKC 55 address List box Yes No 0 to 999 9 Number of psig above target when AKV valves will be closed during rack shutdown O to 45 Number of seconds after suction pressure reaches target the number specified in the preceding field that AKV valves will be closed 0 to 15 The address of the AKC 55 controlling the rack that serves these AKV valves Press EXIT to return to the Configure Rack Menu and continue refrigeration configu ration If and only if a rack is configured as a two stage system the suction configuration RC IU B3 22 4 9 Configuring compressors Desf for each suction group will include a special page for the low side The screen looks like this Configure Rack A Is this stage low side Yes 10 14 49 4M Low Temp AA Suction Info Low side shutdown Shutdown on hi suct PSI Yes High side suct PSI tT 60 0psi Shutdown on hi suct temp Yes High side suct temp loo Obey Control desuperheater Yes Controlling Sensor 2 TDesuper In AA Desuperheating temp 7 80 0 F Parage nh Ae ee ae oe eee z 0 F PR DW for more The fields and their contents are as follows Is this 2 stage
33. digital alarm with the trip level a number of cycles 0 9 in a specified time period 1 to 9999 seconds minutes or hours Comp oil failure if an oil failure digital is configured A digital alarm that can be enabled to occur when the oil failure sensor is on for a specified time period 1 9999 seconds minutes or hours High oil resets if an oil reset switch monitor is configured A cycle digital alarm with the trip level a number of cycles in a specified time period 1 9999 seconds minutes or hours High Temperature if a discharge temperature sensor is configured An analog alarm set for a temperature from 999 9 to 999 9 degrees with a time limit from 1 to 9999 seconds minutes or hours High inverter resets if variable speed is configured and the reset is moni tored A cycle digital alarm with the trip level a number of cycles 0 9 in a specified time period 1 9999 seconds minutes or hours Inverter failure if variable speed is configured and the inverter bypass is monitored A digital alarm that can be enabled to occur when the inverter is in bypass for a specified time period 0 9999 seconds minutes or hours Configuring Circuit alarms The third selection on the rack alarm configuration menu is Circuits The types of alarms that present themselves depend upon whether the circuit is controlled by AKC 55 I O directly or by one of the various types of Danfoss case controller After selecting Circuits from the rack alarm
34. heat during store closed hours as configured in the Store Info screen Lockout above ambient 0 0 to 150 0 The outside ambient temperature above which auxiliary heat will be locked out Delay between stages 0 to 99 The number of minutes after the start of an auxiliary heat stage before the next stage can start Also the minimum on time for every stage AKC 55 System Manual RC IU B3 22 4 85 ClimaTECH dehumidification configuration ClimaTECH economizer configuration Analog gas valve Temperature difference Min valve opening Valve delay Desf List box Yes No Whether or not the HVAC unit has a controlled analog gas valve ClimaTECH controllers have only one analog variable output If a variable speed fan is configured an analog gas valve cannot be and vice versa 40 0 to 150 0 the difference between supply air temperature and zone temperature 0 to 100 The minimum percentage of valve opening when auxiliary heat is on 0 to 99 The number of seconds after the enabling relay turns on before the analog valve can open loyvlsfzooz El Configure CT ETU 5 Num of stages Tiz Occupied setpoint o o F Umoccupied setpoint o o F Lockout below ambient o 0 F Delay between stages 7 1 min Aux heat dehumid lockout No Num of stages Occupied setpoint Unoccupied setpoint Lockout below ambient Delay between stages Aux heat dehumid lockout System Man
35. is a night setback override switch 0 to 1439 The number of minutes after operation of the override switch that night setback will be overrid den 0 to 8 The number of night setback schedules Schedules are entered on thelast page s reached by using the PG DN key List box Yes No Whether or not heating is to be locked out above a supply air temperature to be specified on the following line 0 0 to 999 9 Above this temperature plus deadband next field heating will be shut down 0 0 to 50 0 The number of degrees above the lockout setting where heating will be shut down Also the number of degrees below the lockout setpoint where heating will be allowed after being locked out O9 05 44 AM Heating Ra Wum of aux heat stagqges 7 Z Target temp 69 0 F 1 for stage 2 69_ 0 F Pre delay for stage 1 0 min min He Post delay for stage 1 Lockout aux ht min 0 min He in sethk Yes Ambient heat lockout_ _ _ Wo heat abore aaan FES E Enges gh bi eee te grey ERAN a 0 F for more Num of aux heat stages Target temp for stage Range RC IU B3 22 0 to 5 The number of auxiliary heating stages in this HVAC unit 0 0 to 99 9 A separate field for each of the stages in the unit 0 0 to 9 9 The range selected creates a dead band Heat will cut in at target minus range and cut out at target plus range RTU Heating auxiliary heat configur
36. is variable speed fan motor control each stage will be brought on and ramped up to maximum speed When additional capacity is required fans will be reduced to minimum speed and an additional stage brought on then all will be ramped up together and so on Neutral Zone Danfoss Neutral Zone control will be used This is a strategy that operates to move current value closer to target more rapidly the farther away the current value is from target If you select Neutral Zone here you will cause answer on inverter control on the second page following to change to None That will in turn lock this selection to one between Rate of change and Neutral Zone since those strategies apply to installations without variable speed fans If you change equipment strategies or select Neutral Zone in error first select Rate of Change here then go to the second page following and change Fan inverter control to the appropriate variable speed control either VO or VLT to restore the variable speed choices here Rate of change A control strategy that simulates PID control Ramp stages if ambient 99 0 to 150 0 0 0 to 9 9 If the ambient tempera ture is below setpoint minus range ramping will be by stages When ambient reaches setpoint plus range all fans will ramp together Target 0 0 to 500 0 for pressure sensors 0 0 to 200 0 for temperature sensors The value that the control algorithm will seek to maintain with the selected Strategy Pump
37. level of the Alarms Suspended alarm is set to an action other than Disabled a single alarm will occur and if the level is Critical or Normal it will dial out to indicate that the suspension has occurred The number of minutes for the suspension can be set Suspending rack alarms One common reason for suspending rack alarms is rack service requiring a partial or complete equipment shutdown In such a case pressures and temperatures could reach elevated levels giving rise to many alarms A technician would suspend alarms to forestall unneccessary communications to the store by monitoring personnel An operator who wants to suspend alarms does not enter configuration screens to do so To suspend alarms it is only necessary to be authorized for refrigeration functions or the higher Supervisor level To suspend rack alarms select Refrigeration from the Main Menu then select the rack being serviced from the refrigeration menu and then select Rack Service from the Rack menu The Rack Service menu looks as at left below Oo4 o7 7003 O4 o7 7003 tl LUS E7 AM ea Service Suction Groups p Heat Feclaim A Suction Groups p Heat Feclaim E Evaporators Receiver ze suspend Rack C Alarms Status Off Condenser iJ Verify Sensors Suspend for 60 minutes Suspend Back C Alarms 4 112 Configuring Alarm settings Dave When the Suspend Rack C Alarms button is selected a pop up window appears as in the screen at ri
38. lights on If multiple relays are configured there will be one trip level per relay List box Yes No Whether or not one relay will always be on List box Yes No Whether or not the one relay kept on will rotate among all the relays configured Rotation takes place so that the same relay is not used when the zone cycles off 11 06 2002 Pires eet on eta oh et a a T Z win Fost dels ren AAS T 2 min Minimum OF time T1Z0 min Minimum OFF time 10 win Enable dimmer output 7 Target 2c ess See ecole oo ee ee eee 7 SO 4 Minimum ot Pee ie Beaction Time 6 2 55 tMHormal Overrids switch 2 2 4 TYes Owerride duration t4 00 02 Burglar ovrerrid o a TYes Frexdel y rroo m o erona 7 O min Fire override TYes PG DW for more Pre delay Post delay Minimum ON time Minimum OFF time Enable dimmer output Target System Manual 0 to 120 When lights are off the number of minutes that the lighting condition must be satisfied before lights will be turned on 0 to 120 When lights are on the number of minutes that the lighting condition must be false before lights will be turned off 0 to 255 When lights are turned on the number of minutes that they must remain on before being turned off 0 to 255 When lights are turned off the number of minutes that they must remain off before being turned on List box Yes No Whether or not a dimmer variable output will be
39. low side Low side shutdown Shutdown on hi suct PSI List box Yes No Is this the low side of the two List box Yes No Whether or not to shut down the low side compressors when high side reaches a specified suction pressure High side suct PSI 99 0 to 200 0 The high side suction pressure at which the low side will be shut down Control desuperheater List box Yes No Whether or not de superheater control is implemented on this rack Controlling sensor List box Desuper In AA Control is based on a sensor moni toring the liquid in temperature at the de superheater Desuper Out AA Control is based on a sensor monitoring the liquid out temperature at the de super heater Suction Temp AA Control is based on a sensor monitoring suction temperature Desuperheating temp Range To begin configuring compressors 50 0 to 200 0 1 0 TO 10 0 select Compressors from the Configure Rack menu The first page of the screen looks like this System Manual RC IU B3 22 AKC 55 AKC 55 No of compressars ofl ConNpreSsseor Cape eson THeciprocating 28 aw aS Gen ent a eee gee ome cn ane ee TBitzer Reset Bitzer with BO 7 Noa Compressor l siz T z0 No oh Unloaedere o oo T4 Unloader capacity 1 z0 2 20 3 Z0 4 z0 Inverter Cone rol TVO Inverter min speed 7 50 0 Inverter wax speed 7100 0 BPM at max speed tlood Inverter nax res
40. minutes heating must remain off after being turned off before being turned on control actions See preceding two settings There are two pages of dehumidification configuration settings loyv1ls 2002 E Configure ETU 05 50 26 AM Dehumidi fy R Configure ETU Dehumidification type Cooling Aux heat during debhumid Mo Control dehumid ah Ree eee mlale Dewpt Control dehumid using average Pre delay for stage l 1l min 2 1l min Fost delay for stage fl min F Ff min Cooling Lom Linit T Dehumidification type Aux heat during dehumid Control dehumid on Control dehumid using System Manual 68 0 F PR DN for more Night ser back 2S T Night setback offset 7 0 F List box None Cooling The type of dehumidification used List box Yes No Whether or not auxiliary heat is allowed during dehumidification List box Humidity Dehumidification will be controlled based on a specified humidity target A humidity sensor is required Calc Dewpt Dehumidification will be controlled based on a specified dewpoint target which will be compared with a dewpoint calculated from zone temperatuare and humidity Both zone temperature and humidity sensors must be installed List box if controlled by dewpoint or humidity only and if there are multiple sensors Average Control will be based on the average of a group of sensors High The high value o
41. more pi i Bl H g RC IU B3 22 4 41 Name Beast Bd Pt Type System Manual Desf Label field any 15 characters The name of what is being measured by the analog input sensor input The default names for the sensors automatically added during configuration of refrigeration are shown and will suffice in many applications They can be edited character by character put the cursor on the field and press to enter edit mode then use the left and right arrow keys to move from space to space and the up and down arrow keys to select the character for that space When the name appears as you want it press ENTER List box No The value of the point will not be broadcast to be used in logic on other controllers Send The value of the point will be available on the host network for use by other controllers Be sure that each sending Board Point combination is unique throughout the system If the controller at address 01 is sending from its Bd Pt address 1 02 then no other controller can have an output at its Bd Pt address 1 02 sending Rec The value of the point is being received from another controller on the host network You must enter in the Bd Pt fields the Bd Pt address of the sending point Enter the Bd Pt address to which the sensor is wired or in the case of a received broadcast point enter the board and point address of the sending point List box AKS 32 100 Danfoss pressure sensor 0 to 10
42. normal conditions Num of emergency steps 0to 10 The number of steps levels which you will allow to be shed when the emergency generator 1s running Normal Soft start begin level O to the number of normal steps set above up to 10 if 8 normal steps are configured for example the upper limit of this entry is 8 This entry specifies the level down to which loads will be turned on when the emergency generator starts A level will be added each minute unless the specified emergency load for shed ding to start 1s reached Coupling begin level 0 to 99999 Enter the upper demand limit you do not wish to exceed for the given hour of the day under normal operating conditions when using normal power There is one field for each hour of the day System Manual RC IU B3 22 4 105 Davee from 00 to 23 This screen has two pages in order to list all the hours of the day Emergency Soft start begin level O to the number of emergency steps set above up to 10 if 8 emergency steps are configured for example the upper limit of this entry is 8 This entry specifies the level down to which loads will be turned on when the emergency generator starts A level will be added each minute unless the specified emergency load for shedding to start is reached Coupling begin level 0 to 99999 Enter the upper demand limit you do not wish to exceed for the given hour of the day under normal operating conditions when using normal power There is o
43. on a Danfoss I O module will control the variable speed drive VLT A Danfoss VLT or AKD variable frequency drive will be used for motor control 1 0 to 150 0 The minimum percentage of the maxi mum RPM that the fan motors will be run Insure that the entries on this screen are within the manufacturer s specifications 1 0 to 150 0 The maximum percentage of the maximum RPM that the fan motors will be run Insure that the entries on this screen are within the manufacturer s specifications 1 to 6000 The RPM at the maximum percentage specified in the previous setting 10 to 10 The maximum number of inverter resets RC IU B3 22 AKC 55 AKC 55 Split condenser control Inverter reset delay Inverter proof delay Devt after which a subsequent reset condition will place the inverter in override 1 to 600 The number of seconds that must elapse between inverter reset attempts 1 to 600 The number of seconds without proof before an inverter reset is attempted Split condenser configuration is done on the next page of the Configure Condenser screens When there is one valve and one split the screen appears as at left below when there are two or three valves the screen at right appears with the appropriate number of setpoints Split ecndenser 2 222 2 fres Split condenseert 2 25 22 Yes royale By elas hoa te Wat eeu Oe 7 Ambient Split based on Control method 2 2 2 es tlwalve leplit Control met
44. or hours Low liquid level if a liquid level sensor is configured An analog alarm that occurs when receiver liquid level has fallen below water temperature is below a set percentage but values from 999 9 to 999 9 are allowed degrees for a period of 1 to 9999 seconds minutes or hours If the rack has Bitzer compressors with electronic interface and the AKC 55 is configured to control the compressors there will be a menu selection for Bitzer alarms All special Bitzer alarms are embedded in the Bitzer compressor electronics After selecting Bitzer from the rack alarms menu it it is then necessary to select the individual compressor We have omitted the screen that lists the compressors from the illustrations below The alarm types are shown below the screen illustrations RC IU B3 22 4 121 4 122 HVAC alarm configuration re ee ee A Suction P Compressors Circuits Condenser Dirty oil filter Motor overload Oil flow Oil level Discharge temp Phase fail Botation fail Bun proof fail Disabled The setpoints for the embedded Bitzer alarms are fixed in the compressor electronics and are only monitored for occurrence by the AKC 55 The alarms are virtually self explanatory For further information consult literature supplied by the compressor manufacturer The navigational route to HVAC alarm configuration is as follows from the Main Menu select Configuration then Alarms then HVAC The alarm confi
45. pone 22224 T O 0 Low Fire Dupacion 222 4 lt if 3 min Max valve opening 7 950 3 Min valve opening oe ee Degrees to max apening 4 F PG DN for more Aux heat target temp Pre delay Post delay Lockout aux ht in setbk Ambient heat lockout System Manual 50 0 to 100 0 The temperature you want to maintain at the zone sensor 0 to 60 The number of minutes that must elapse after target plus range is reached before the analog valve will open 0 to 60 The number of minutes that must elapse after target minus range is reached before the analog valve will be closed List box Yes No Whether or not auxiliary heat is to be locked out during hours when setback is effective List box Yes No Whether or not heat is to be RC IU B3 22 AKC 55 AKC 55 No heat above Range Low Fire Position Low Fire Duration Max valve opening Min valve opening Davee locked out based on ambient temperature 0 0 to 100 0 Auxiliary heat will be locked out above this temperature plus range next line Heat will be allowed on again when ambient temperature has fallen to lockout minus range 0 0 to 999 9 The range selected creates a dead band around the lockout temperature Heat will be locked out at lockout temperature plus range and once locked out will be allowed on at ambient lockout minus range 0 0 to 100 0 The percentage of valve opening when ignition occurs 1 to 20 The number o
46. sensor Power failure A digital alarm that can be enabled to occur whenever power is restored after being interrupted the specified time period is 0 9999 seconds minutes or hours Filter elapsed Occurs when the set number from 1 to 9999 seconds minutes or hours have elapsed Useful when set for the system air filter life as a reminder to change the filter Filter runtime Occurs when the set number from 1 to 9999 seconds minutes or hours have elapsed Usually used Useful when set for the system air filter life as a reminder to change the filter Sensor discard if control based on two or more zone sensors Occurs at the specified time after one of the controlling sensors fails and the control ler logic stops using the value of that sensor The time setting can be from to 9999 seconds minutes or hours NOTE if all zone sensors fail control will be based on the return air sensor Power failure A digital alarm that can be enabled to occur whenever power is restored after being interrupted interrupted the inverter is in bypass for a specified time period 0 9999 seconds minutes or hours Alarm types for the two ClimaTECH HVAC controllers are the same and all are embedded with a common time delay which you can change except the fire stat alarm the fire stat is wired to an AKC 55 digital input board not to the ClimaTECH controller it is broadcast to the ClimaTECH over the AKC 55 s I O network The alarm configur
47. speed Clima TECH controllers have only one analog variable output If you select variable speed here you will not be able to control an analog gas valve if any as a modulating valve List box Continuous The fan will run continuously On Demand The fan will run only when cooling heating or dehumidification is called for High Speed Fan Assignment Fixed speed fans may be 2 speed Enter in the Stage field for cooling dehumidification heat reclaim and Fan type Airflow control AKC 55 System Manual RC IU B3 22 4 83 Climatech cooling configuration Variable Speed Fan Min fan speed Heat Dehumid fan speed Shutdown on fire alarm Monitor phase loss Which phase loss monitor Shutdown on phase loss Desf auxiliary heat the stage at which you want fan operation to change to high speed A setpoint and range are configured for cooling dehumidification and heating The range defines a deadband on either side of the setpoint in which no control action is taken Setpoint 40 0 to 150 0 Range 40 0 to 150 0 0 0 to 100 0 The minimum percentage of rated fan speed allowed 0 0 to 100 0 The percentage of rated fan speed during dehumidification or heating List box Yes No Functional only if the fire alarm has dry contacts wired to a digital input on the ClimaTECH controller or is being broadcast by the AKC 55 The fan will be shut down on occurrence of a fire alarm List box Yes No Wheth
48. steps on one at a time The small rectangles will change color to indicate that the step is on When all steps are on for a compres sor the next click on the icon will turn everything off System Manual RC IU B3 22 AKC 55 AKC 55 Configuring evaporators System Manual Devt As you change a stage s capacity the number in the right column of the screen will change for that stage giving the total horsepower you have selected for that stage You can change the number of steps at any time To begin configuration of evaporators return to the Configure Rack menu and select Evaporators Or from the Main Menu which you can always reach with the MENU key select Configuration Refrigeration the particular rack and Evaporators The evaporator menu will initially look like as on the left below with no evaporators listed but as soon as you enter a number in answer to the top question and select from the Type list box for some of the evaporators the screen will look something like the one at right Os 30 2003 10 42 01 AM Low Temp AA E Evaporators E Evaporators Number of Circuits Dewpoint mwethod Dewpoint Dewpoint sensor to uset Dewpoint 1 Number of Circuits o Dewpoint method Dewpoint Dewpoint sensor to use Dewpoint 1 Name Type Subcooler Al AEC SS SUBC Setups Circuit Adz ARC 55 gt Setup Circuit AAS AEC 16x gt Setup Circuit d EEC gt Setup Circuit AAs DEG MASTER 5etup Ci
49. the algorithm A thorough explanation of neutral zone control is available as an appendix to this manual Paging down from the neutral zone screen reveals the compressor staging pattern screen Low Temp AA Steps 16 1 Hz 13 4 3 fO_0 4 z6 8 5 33 4 6 40 0 7 46 5 PR DN for more In the default screen the staging pattern is Auto for automatic staging and there is no selection for Steps The controller will stage capacity in the smallest steps avail able When there are a large number of steps manual staging can be used to eliminate needlessly small steps and compressor cycling To use manual staging select Manual from the pattern list box then specify the number of steps you want The display that results will show a row compressor icons for each stage A compressor s unloaders are represented by the small rectangles to the right of the compressor icon In the sample screen compressors are all 20 HP and each has 2 unloaders Each unloader is 33 of compressor capacity These settings were determined on the configuration page for each compressor Stage 1 is fixed at zero capacity and cannot be changed To change stage 2 or any higher stage move the cursor to a compressor icon and press enter You will notice that the piston in the icon moves When it is up the compressor is on If there are unloaders on a compressor subsequent clicks on the compressor icon will turn the unloader
50. the first page of configuration for actual alarms appears O4 O07 2003 10 00 12 AM Type Name Address Alarms Suspended Hack C E Fhase Loss Fhase Loss C 08 1 Disabled Low Pressure Suction Pres C 06 1 Disabled High Pressure Suction Pres C 06 1 Disabled Low Temperature Suction Temp C 06 5 Disabled PG DN for more The fields and their meanings are as follows Type Name Address Alarm Action System Manual Label field In the top line for each alarm the leftmost column shows the type of alarm Label field The name of input either digital or analog that trips the alarm See note at the end of the discus sion of this screen about Alarms Suspended alarms Label field The board and point assignment of the input given under Name This is where the input is physically wired For example the phase loss digital input the second alarm in the screen shown above is wired to point on board 8 The suction pressure sensor an analog input for rack C is wired to point 1 on board 6 List box In the Type column in the second line for each alarm is the current alarm action setting Initially as shown above all alarms are set to disabled as they are automatically created during configuration of refrigeration The same is true of the alarms created for HVAC and other store systems We can use this screen to change the alarm action levels The choices in the list box are these Disabled The
51. there is a termina tion relay for each case List box Yes No Whether or not there is a termina tion input each case Paging down produces the next page Loysoryzooez 01 00 16 PH Use win defrost time Yes Minimum defrost time 7 30 4Antisweat control TYes ON when dewpoint abovre 40_ 0 F Cycle above dewpoint 7 30 0 F Antisweat cycle time 7 20 min F n controll osoro ass ee TYes Fans on during defrost tYes Stop fan on high temp Yes F n stop Gente lt eae 7 50 0 F Fan delay control 2 256 TYes Start fan on time TYes Delay tinte nonae aces oo Sees 15 min Monitor door position Raves PG DM for more Defrost time settings made on this and the following pages work with the termination settings on the preceding page If a minimum defrost time is used that time must elapse AND the settings for defrost termination temperature or switch must be satisfied If a defrost duration is specified either that time must elapse OR the requirements set on this page must be satisfied for defrost to terminate The fields are as follows Use min defrost time Minimum defrost time Antisweat control System Manual List box Yes No Whether or not minimum defrost time will be used 1 to 180 The number of minutes defrost must be on before termination List box Yes No Whether or not anti sweat heaters will be controlled by the AKC 55 When you configure an evaporator a
52. this rooftop should be used 0 0 to 100 0 The pressure value of the sensor selected on the previous line at and above which cooling will be cut out Cooling will not cut in again until the pressure falls below this value and the pre delay specified on the preceding page has elapsed List box Sensor Input There is a leaving air temperature for each stage of cooling near the coil At and below the setpoint next line the cooling stage will be turned off On Off Input A single digital input that when ON will turn off all stages of cooling in the RTU None There is no freeze protection to configure 0 0 to 50 0 The temperature as measured by the sensor input indicated above at and below which a stage of cooling will be turned off List box Yes No Whether or not the cooling setpoints are to be raised by an offset next line during scheduled times next page when cooling require ments are not as critical for example when the building is closed 0 0 to 50 0 The amount by which the cooling setpoint set on previous page is to be raised when night setback schedules next page are in effect List box Yes No Whether or not there is a switch to override night setback 0 to 1439 The number of minutes after activation of the override switch that night setback will be overrid den 0 to 8 The number of cooling night setback sched ules Schedules are entered on the following page s reached by using the PG DN key
53. to 500 0 for pressure sensors 0 0 to 200 0 for temperature sensors The value that the control algorithm will seek to maintain with the selected Strategy The next page has settings for high pressure bypass and for inverter control if used The page is reached by using PG DN System Manual RC IU B3 22 4 27 The screen looks like this High pressure bypass A si Monitor inlet temp 2 TYes Fan inverter control 7V0 Hin speed eevee peer ame ene 125 0 fy Foi toy oi 4s lege aeons Beene ele orn a 7100 0 BPM at max speed tlooo Inverter Wax resets Ta Inverter reset delay 300 sec Inverter proof delay 2Z0 sec PG DN for more CA The field information is as follows High pressure bypass Monitor inlet temp Fan inverter control Min speed Max speed RPM at max speed Inverter max resets System Manual 0 0 to 500 0 The pressure at and above which all fans will be run and at full speed if variable speed motor control is used When high pressure bypass occurs a service technician is required to clear the bypass by using the appropriate button in the status screen List box Yes No Whether the condenser inlet temperature is to be monitored Please see notes on Neutral Zone selection in the section on the first condenser configuration screen List box None No variable speed drive is controlled VO An analog output also known as a VO variable output point
54. until the temperature reaches 70 List box Yes No Whether or not there is to be a lockout based on low ambient temperature 0 0 to 100 0 The ambient temperature below which cooling will be locked out 0 0 to 9 9 The range for the lockout Cooling will be locked out at lockout minus range and when locked out will be allowed on at lockout plus range 0 to 20 The number of minutes that a stage must run before being turned off O to 20 The number of minutes that must elapse after a stage is turned on before the next stage can be RC IU B3 22 4 93 SC4 heating configuration Night setback Night setback offset Override switch Override duration Num of schedules Desf turned on List box Yes No Whether or not the cooling setpoints are to be raised by an offset next line during the times when cooling is not scheduled to be on according to a schedule or schedules next page 50 0 to 50 0 The amount by which the cooling setpoint is to be raised during night setback List box Yes No Whether or not there is an over ride switch wired to a digital input 0 to 1439 The number of minutes that control will be overridden after operation of the override switch 0 to 8 The number of operating schedules entered on the following page s MWumber af zone sensors 73 Controlling sensor TZzone Temp 4 1 Wum of heat relm stages Tz Setpoint A eee eas ee Seren sett aed 7 72 0 F 1 Fiei s aie ede e
55. when heating is on Min 10 0 to 100 0 Max 50 0 to 130 0 The highest and lowest percent of rated maximum speed that the inverter will be allowed to drive the fan motor when cooling is on Min 10 0 to 100 0 Max 50 0 to 130 0 The highest and lowest percent of rated maximum speed that the inverter will be allowed to drive the fan motor when dehumidification is on 0 0 to 20 0 The increment in percent by which variable speed is increased when called for by an increase in load 0 0 to 20 0 The decrement in percent by which variable speed is decreased when called for by an decrease in load List box 0 5 Volts Sets the RTC board s analog output for a variable speed drive requiring 0 5 volts 0 10 Volts Sets the RTC board s analog output for a variable speed drive requiring 0 10 volts 1 to 20 This setting together with the next regulates the sensitivity of speed control These should be left at the default settings and should only changed by a Danfoss trained technician 1 to 15 This setting together with the preceding one regulate the sensitivity of speed control These should be left at the default settings and should only changed by a Danfoss trained technician 0 to 10 The number of reset attempts when proof is RC IU B3 22 AKC 55 AKC 55 RTC Cooling configuration Inverter reset delay Inverter proof delay Monitor phase loss Shutdown on phase loss Davee not detected before the varia
56. will run continuously during open hours Store open hours are defined in the Store Info screens On demand The fan will run on demand during open hours On demand means that the fan will run whenever conditions calling for heating heat reclaim cooling dehumidification or venting are met Fan control CLOSED hours List box Post delay Monitor phase loss Shutdown on phase loss Which phase loss Continuous The fan will run continuously during closed hours Store closed hours are defined in the Store Info screens On demand The fan will run on demand during closed hours On demand means that the fan will run whenever conditions calling for heating heat reclaim cooling dehumidification or venting are met 0 to 60 The number of minutes that the fan will run after the last stage of heating cooling etc is turned off List box Yes No Whether or not a phase loss monitor will be monitored List box Yes No Whether or not the unit is to be shut down when its phase loss detector input is on List box All available phase loss monitors are shown Shutdown on smoke detect List box Yes No Whether or not the unit is to be Shutdown on fire alarm System Manual Shut down when its smoke detector 1s on List box Yes No Whether or not the unit is to be shut down when a monitored fire alarm is detected RC IU B3 22 AKC 55 No of return sensors Controlling sensor No of supply sensors Contr
57. 0 psig AKS 32 200 Danfoss pressure sensor 0 to 200 psig AKS 32 500 Danfoss pressure sensor 0 to 500 psig PHOTO OD 1 Danfoss indoor outdoor photocell with type AKS 21 temperataure sensor PHOTO ID Danfoss indoor photocell PT1000 Danfoss temperature sensor DPS100 Danfoss dew point sensor ECI TP 1 ECI temperature sensor type TP 1 ECI TP 2 ECI temperature sensor type TP 2 NOVAR Novar temperature sensor THERM3 Danfoss THERM3 low and medium range temperature sensor THERM3 HT Danfoss high range THERM3 temperature sensor EMHS3 Danfoss humidity sensor indoor with temperature sensor EMHS4 Danfoss humidity sensor outdoor 1 6 Volts A user supplied linear response sensor with 1 to 6 Volt output 0 5 Volts A user supplied linear response sensor with 0 to 5 Volt output RC IU B3 22 AKC 55 AKC 55 Board amp Points On off inputs Digital inputs SORT Name System Manual Devt 1 2 Volts A user supplied linear response sensor with 1 to 2 Volt output CTTS Com Trol temperature sensor CPC501 1121 CPC type 501 1121 temperature sensor Elm Elm temperature sensor HGM CHAN Provides channel information for a multi zone Yokogawa leak detector HGM LEAK Provides refrigerant ppm for the channel given by HGM CHAN 10A CT Danfoss 10A current transformer 150A CT Danfoss 150A current transformer 200A CT Danfoss 200A current transformer Percent Any to 10 Vdc sensor readout O to 100 Leak Danfoss leak sen
58. 1 to 20 This setting together with the next regulate the sensitivity of speed control These should be left at the default settings and should only changed by a Danfoss trained technician RC IU B3 22 AKC 55 Algorithm Interval Inverter max resets Inverter reset delay Inverter proof delay Monitor phase loss Shutdown on phase loss Devt 1 to 15 This setting together with the preceding one regulate the sensitivity of speed control These should be left at the default settings and should only changed by a Danfoss trained technician 0 to 10 The number of reset attempts when proof is not detected before the variable speed drive will be placed in override 0 to 600 The number of seconds that must elapse between resets 0 to 600 The number of seconds that must elapse after proof is not detected before a reset attempt List box Yes No Whether or not phase loss will be monitored List box Yes No Whether or not the unit is to be shut down when its phase loss detector input is on Shutdown on smoke detect List box Yes No Whether or not the unit is to be Shutdown on fire alarm No of return sensors Controlling sensor No of supply sensors Controlling sensor AHU outside air coil configuration AKC 55 System Manual shut down when its smoke detector is on List box Yes No Whether or not the unit is to be shut down when a monitored fire alarm occurs 0 to 5 The number of return air temperat
59. 2 AKC 55 AKC 55 Evaporative condensers Envirouar d 3 2502 oe ee coe TYes Subcooling target 715 0 F Peadb na soos ee eo Gules Ca Min sat cond temp 760 0 F Min subcooling temp 75 0978 Elevation rack to cond 730 ft Open SPR if discharge 50 0 psi gt Target Bleed salves oss 2 65255 fres D la ay after SPE ooe eeoa TE minutes The fields and contents are as follows Enviroguard Subcooling target Deadband Min sat cond temp Min subcooling temp Elevation rack to cond Open SPR if discharge Bleed valve Delay after SPR List box Yes No Whether or not an Enviroguard system is being used 0 0 to 100 0 The desired subcooling 0 0 to 100 0 The deadband above the target and below the target in which there will be no control actions 0 0 to 100 0 The saturated condensing temperatuare below which the system pressure regulator will be off 99 9 to 99 9 The subcooling temperature below which the system pressure regulatorr will be off 0 to 3000 The total drop distance from condenser to the rack 0 0 to 200 0 The pressure differential above target at which the system pressure regulator will open List box Yes No Whether or not there is a bleed valve 0 to 10 The number of minutes that must elapse after the system pressure regulator is turned on before the bleed relay is energized Returning to the first page of condenser configuration from the Main Menu Configu
60. 6 2002 HS Conftiqure Demand Limiting Meter History Continuing select Configure from the Utility Meter Menu and press ENTER Now the Utility Meter Configuration menu appears as shown below 11 06 2002 ave Configuration Wo of KWH Utility Meters E Nane Meter 1 gt Setup Meter 2 gt Setup Enter the number of meters to be configured and a list will appear These are the fields No of KWH Utility Meters 0 to 5 The number of meters being configured Name Label field any 11 characters Enter the name of the meter being configured gt Setup lt button field Put the cursor here and press ENTER to begin setup When the setup button is pressed the Configure Meter menu appears as at left below When Meter Setup is selected from the menu the first page of the Meter Setup screen appears as at right System Manual RC IU B3 22 4 103 4 104 Meter setup continued p3 11 06 2002 11 06 2002 Conftiqure Meter 1 i Meter Setup E Board Points i Meter Setup Meter 1 Number af CT sets ofl AUPE Spe ve ees a a TESA Voltage num phases 1LZ0 208 03 Collect History 2 2 22 lt TYes Use unit for demand lim Yes Windor SiZ ee eee eee 715 win Normal load OO HRS 7 1Lo00 Normal load 01 HAS 7 L000 Normal load Of HRS 7 1Lo00 Normal load 03 HRS 7 L000 Normal load O4 HRS 7 1Loo0 Normal load OS HRS 7 1Lo00 Normal load 06
61. AKC 164 Degree Master or DCU refrigeration can be controlled directly by the AKC 55 Configura tion of such circuits starts by selecting AKC 55 in the Type column for the circuit on the Evaporator menu then moving the cursor to the word Setup for that evaporator and pressing ENTER A screen like the one at left below will appear The same screen with all its fields revealed appears as at right O3 47 41 AM lo o4 2002 ho ete lit g 2 Pepe ee eee ee ABox o Fixture ype c eee ABox o Firt re baie neea oo User Det Fixture Name 2 s 2i2 52 044 TUser Det Enter user defined name Circuit Enter user defined name Circuit Nonietor box door 223 tHo Monitor bog door TYes Shutdown when door open Mo Wo case hoxu sensors 1 Wo case hoxu sensors IDZ Temperature control TYes Temperature control TYes Controlling sensor THin Temp Target 35 0 F 7 oe OF Target 35 0 F 2 0 F Pvypev or derrese 2 22s None Pyperot detrost maas Electric Drip down delay 22 24 60 sec Termination type 2 24 22 TDefroast sensor Termination temp 0 0 F Term relay for each casetYes Term input for each casetYes PR DN for more PR DN for more The fields are as follows Fixture Type List box Various types of fixture can be selected System Manual RC IU B3 22 AKC 55 AKC 55 Fixture Name Enter user defined name Monitor box door Shutdown when door open No case box sensors
62. C IU B3 22 4 29 Reaction zone and time Enviroguard systems Split on heat reclaim Split pressure override Cut in Cutout Desf List box Yes No Only with single split valves Whether or not condenser will be split when heat reclaim is on List box Yes No Whether or not split funtion will be overridden 0 0 to 500 0 The pressure below which split con denser operation is allowed 0 0 to 500 0 The pressure above which split con denser operation is disallowed If control method is Target the next page of condenser configuration has neutral zone control parameters for the PI control algorithm Confiqure Back A Condensers Normal Reaction done W i Reaction Time Pius zone Orn een ie aS re 7170 sec Minus zone Ca oe Pe ee 7 60 sec PG DMN for more The fields are as follows Normal Reaction Zone Plus Zone Minus Zone Informed adjustment of these settings is best done by Danfoss trained technicians 0 1 to 60 0 The range of pressure on either side of the target in which the condenser control algorithm reacts with normal sensitivity 10 to 900 The PI algorithm sensitivity when current control sensor value is above the normal reaction zone 10 to 900 10 to 900 The PI algorithm sensitivity when current control sensor value is above the normal reaction zone The next page is for setpoints that will be used with a Tyler Enviroguard system System Manual RC IU B3 2
63. Danfoss sensors that have a linear response The way you begin configuration of a miscellaneous point depends on whether there are any miscellaneous points already configured First select Miscellaneous from the Main Menu Select Configuration and the Configure Miscellaneous Menu appears 11 07 2002 Configure Miscellaneous Calculations Belay Outputs re Conw Factors iJ Sensor Inputs f Alarms i Onr OEE Inputs User Screen A Variable Outputs R Board Points The calculated points feature of AKC 55 versions 1 00 and higher first on the menu above is arich and very powerful set of tools We will discuss it later in this section The menu items will not be taken up in the order that they appear on the menu Before beginning configuration plan your strategy What types of points will you need to define How many If you need to develop a control strategy involving several inputs outputs and schedules you may wish to look at the examples at the end of this section first because it shows how on off inputs sensor inputs schedules and even other relay outputs are used to create a custom control strategy for a relay output You can configure up to 48 miscellaneous relay outputs per AKC 55 To configure a System Manual RC IU B3 22 AKC 55 AKC 55 Miscellaneous Sensor Inputs Miscellaneous on off inputs Specifying Miscellaneous Conversions Dave miscellaneous relay output select Relay Outputs from the Confi
64. Davee Chapter 4 Initial Configuration of an AKC 55 AKC 55 Check battery Authorization codes Using menus AKC 55 configuration is easy using the keypad and display and even easier using a PC with Danfoss AKA 65 Network Interface software connected to the controller This chapter describes configuration from the AKC 55 keypad You can easily adapt these instructions for the PC keyboard and mouse after reading Chapter 7 Using AKA 65 Software on Your PC We will address configuration of each area of a supermarket control system in this section of the manual Initial configuration for equipment start up may be limited to such items as are necessary to check out the mechanical equipment or provide basic service The configuration can be changed or added to at any time later If you did not install the AKC 55 consult Chapter 3 1 and make sure that the battery enable jumper has been set to the ON position if you do not your configuration will be lost whenever power to the controller is interrupted When the AKC 55 is turned on for the first time the Main Menu will appear as at left below 1 51 05 AP Supervisor Led l Superyvisor amp HVAC Set at Authorization 2 Refrig All 6 Complete Syst 3 Fefrig Set 7 Alarms 4 HVAC All View Only HVAC E Stare Info Auth Recount 7 Lighting AEC 55 Info udit Authorization Origin Lvl OO002Z O00001 Oo9 20 02 O4 16FPM Keypad 1 1 Alarms Communications i Energy H
65. F Lockout above ambient 0 0 F Lockout above ambient 0 0 F Delay between stages 1 min Delay between stages 7 1 min Analog gas valve 3 Yes Heat reclaim flush start 01 00 AM Temperature difference _ o o F Flush d ra ation 2 se 7 10 min Min valve opening T D4 valverde lar aan ee ee O sec PG DN for more Num of heat rclm stages 0 to 4 The number of heat reclaim stages Occupied setpoint 0 0 to 150 0 The heat reclaim setpoint during operat ing hours as configured in the Store Info screen Unoccupied setpoint 0 0 to 150 0 The heat reclaim setpoint during store closed hours as configured in the Store Info screen Lockout above ambient 0 0 to 150 0 The outside ambient temperature above which heat reclaim will be locked out Delay between stages 0 to 99 The number of minutes after the start of a heat reclaim stage before the next stage can start Also the minimum on time for every stage Heat reclaim flush start Time of day field The time for heat reclaim flush to begin each day Flush duration 0 to 99 The number of minutes duration for each heat reclaim flush Number of aux heat stages 0 to 4 The number of configured auxiliary heat stages in the HVAC unit Occupied setpoint 0 0 to 150 0 The zone temperature setpoint for auxiliary heat during operating hours as configured in the Store Info screen Unoccupied setpoint 0 0 to 150 0 The zone temperature setpoint for auxiliary
66. FC 55 Inputs HVAC fire Normal E S O E E E 7 15 min abowe 85 0 F enp Normal below 40 0 F Normal Critical ailure Normal Fire Stat g On for LSmin Alarm delay 0 to 100 The number of minutes after an input reaches trip level that an alarm will be generated All ClimaTECH alarms have a common alarm delay Each alarm has a setting Normal Critical etc as explained in the Alarms appendix A trip level a temperature pressure etc or on off state can be set for each alarm RC IU AKC 55 System Manual B3 22 4 87 ClimaTECH schedule configuration ClimaTECH I O configuration ClimaTECH relay outputs ClimaTECH sensor inputs Davee Because the ClimaTECH can function as a stand alone it contains its own schedules They are set for each day and holiday in the same manner as lighting schedules Refer to the lighting schedule section for information on setting If all schedules are set to Relative and the default zero settings are left for all schedules then the HVAC unit will operate based on the store open hours set in the Store Info screens A ClimaTECH unit s points must be allocated and assigned using the I O points screens lofis z002 Belay Outputs Stage Name e ee Be Fan D Economizer o Cooling o Dehumidi ty o Heat Reclaim o oO 4ux Heat o oO ae Og E A ClimaTECH 65 can have up to six analog sensor inputs up to six digital on off inputs and up to five relay o
67. O47 1 min PG DN for more Number of zone sensors Controlling sensor Num of cooling stages Num of outside air coils Consider dewpoint OA Coil LAT low limit Enable OA Coil 1 above Target temp for stage Range System Manual 0 to 5 The number of zone sensors in the area of the store served by this HVAC unit List box Min Temp Control will be based on the lowest value of all temperature sensors in the unit s zone Max Temp Control will be based on the highest value of all of the temperature sensors in the unit s zone Average Control will be based on the average of all the temperature sensors in the unit s zone Zone Temp 1 1 etc each zone temperature sensor will be available as a choice in the list Control will be based on the single selected temperature sensor 0 to 6 The number of cooling stages in this HVAC unit Includes the number of outside air coils 0 to 2 The number of outside air coils in this HVAC unit List box Yes No If Yes is chosen the leaving air temperature at the outside air coil needs to be less than outside dewpoint for the coil to be active 20 0 to 60 0 The leaving air temperature at and above which outside air coils are enabled 40 0 to 95 0 Question is repeated for OA coil 2 if present The leaving air temperature at and above which the named outside air coil lis enabled 0 0 to 100 0 One target per cooling stage excluding outside air coi
68. TER with the cursor on the name of the next new calculated point the configuration screen for that point opens and looks like this System Manual RC IU B3 22 AKC 55 AKC 55 fO8 2002 11 07 44 4M value tlerror Current Value f Errori 7 On The list box for the Units field is already open when the screen first displays showing all the types of points that can be created and for SI points units For the purpose of discussing the screen let s assume that we are creating an OI a digital input We select OI the first item from the list box Now the screen looks like this L1L O8 2002 11 09 08 AM Title area Hl HE E Ur ors Unde ance Heading rn as Gerner r Nana Data Definition Data _ Bud Het conii gir adl PLCEEPSaEPI Definitions a Insertion bar Wit first True line RLJ Litt fi EPaEI Rules area y lt i Else line The screen is divided into four areas which from top to bottom are the following Title area The date and time at the very top then the settings icon and screen title in this case Configure Ca 01 OD Heading area The heading of the screen tells what type and style of point will be created The fields are as follows Units Style Undo button Cancel button Data definitions area This area contains information that identifies points that System Manual RC IU B3 22 4 131 Desf will be used in the logical statements in the next area and the current v
69. Zone Danfoss Neutral Zone control will be used This is a strategy that operates to move current value closer to target more rapidly the farther away the current value is from target If you select Neutral Zone here you will cause the next page answer on inverter control to change to None That will in turn lock this selection to one between Rate of change and Neutral Zone since those strategies apply to installa tions without variable speed fans If you change equipment strategies or select Neutral Zone in error first change the Target control type here to Rate of Change then go to the next page and change Fan inverter control to the appropriate variable speed control either VO or VLT to restore the variable speed choices here Rate of change What 99 0 to 150 0 0 0 to 9 9 If Ramp together is selected the strategy will change to ramp stages if the ambient temperature is less than this setpoint 0 0 to 200 0 The target minimum saturated condens ing temperature that the controller will strive to main tain Target is calaculated by adding outside tempera ture and the condenser s design temperature differen tial 0 0 to 200 0 The target maximum saturated condens ing temperature that the controller will strive to main tain Target is calaculated by adding outside tempera ture and the condenser s design temperature differen tial 0 0 to 25 0 The condenser delta T furnished by the condenser manufacturer 0 0
70. a few seconds with a success or failure confirma tion message appearing briefly across the bottom of the screen When successful configuration is complete Danfoss supplies two models of ClimaTECH HVAC controller the ClimaTECH 65 and the ClimaTECH 1024 Configuration of these two controllers proceeds in the same way The ClimaTECH 1024 has a larger control capacity The ClimaTECH configuration menu appears below System Manual RC IU B3 22 AKC 55 10 18 2002 05 10 10 4M E Configure Unit 6 i Cooling Ra Heating R Dehumidi fy Economizer Alarms 2 Schedule i Board Points M There are two fan configuration screens depending on whether the fan is fixed speed or variable speed l1 rlSrz0 z Stage Cooling oeno ae ame C E Dehumidification H t recl i 24 D Aun lary heat 7 0 60 Shut domn on fire alarm Yes Monitor phase loss Ho l rlSrz z Configure CT ETU 5 Far D a E E EE 7 Variable Vo Nee an 7 Continuous Variable Speed Fan Syst ei Setpoint Range raat Era a renee ees o o F 0 0 F Dehumidification 0 0 F 0 0 F HEStInG n a cae ee 0 0 F 0 0 F Hin f n sped ec oe ean T 680 Heat Dehumid fan speed 50 Shutdown on fire alarm Yes Monitor phase Loss TYes Which phase loss monitor Mot configured Shutdown phase loss T List box Fixed Speed Variable VO Fans can be single or 2 speed fixed or variable
71. all existing rack information Refrig type List box The kind of refrigerant System Manual RC IU B3 22 4 5 Adding a Rack Configuring Suction Info Davee Oil type 9 characters not constrained Monitor phase loss List box Yes No Whether or not there will be a digital input from a phase loss monitor Generate input for each appears only after a Yes answer to the preceding question List box Whether there is a phase loss input for each rack or each suction group Shutdown phase loss appears only after a Yes answer to the Monitor phase loss question List box Yes No When all of the items on the Rack Info screen have been configured press MENU to return to the Main Menu There is only one way to add a rack From the Main Menu select Configuration then Refrigeration and the Rack Configuration screen appears At the bottom left of the screen are the words gt gt Add Rack lt lt Move the cursor there and press ENTER A new Rack Info screen will appear ieee SUC ions 62 Compressars 2 Circuits 0 Condensers 0 Pack label eraen Ses I 2 tsta ag system ss 2 MHo Wo of suction groups 70 FPetrig type c a ae aa a TREE Url type cence a tracers ee T Monitor phase loss TYes Generate input for each BRack Shutdown phase loss TYes gt Add Back Notice that the Rack Label field contains the letter B by default since the previously configured rack was rack A You can change the d
72. alue of each The area by default has lines for two definitions but it can be enlarged by selecting the horizontal divider line between it and the next field pressing ENTER and then selecting Insert from a popup box You will see this done in a few pages during the presentation of our first example Rules area This is the area that will contain the logical statements that determine whether the point is on or off OI or the value SI that is used At the bottom of the area is the current value of the result Let s create a point now Afterwards we will discuss each area and field in detail It is important to plan the strategy first Custom strategy example We want to control a compressor room exhaust fan We want the fan to run when ever the compressor room temperature is 90 F or higher we also want it to run in case of a refrigerant leak of 500 ppm or more So let s list the types and values we will need OI calculated point to control the RO SI F misc SI compressor room temperature Num 90 the temperature setpoint SI ppm misc SI leak detector sensor see note Num 500 the leak ppm level RO to control the fan Note the leak sensor may not need to be configured as a miscellaneous sensor if there is a standard leak detector configured Instead we will just select SI ppm as the sensor type and then pick the sensor from the list that appears under data definitions It is important to understand that only the OI will be c
73. and turned off at target minus differential 0 to 60 Not present when dessicant wheel is configured The number of minutes that must elapse after target plus range is reached before the stage will come on There is one field for each stage O to 60 Not present when dessicant wheel is configured The number of minutes that must elapse after target minus range is reached before the stage will be turned off There is one field for each stage 0 0 to 100 0 If zone temperature is below this limit dehumidification will be disallowed RC IU B3 22 AKC 55 Monitor outside humidity Yes Night setback 2 222652 T Yes Night setback offset 7 0 F Override switch Wo Num of schedules fee al PG DMN for more Fan speed List box Low Speed High Speed The fan speed during dehumidification Monitor outside humidity List box Yes No Whether or not to monitor outside humidity on status screens for this RTU Monitor wheel rotation List box Yes No Present only when dessicant wheel is configured Whether or not the dehumidifica tion target is to be raised by an offset next line Night setback List box Yes No Whether or not the dehumidifica tion target is to be raised by an offset next line according to a schedule or schedules on the next page s Night setback offset 0 0 to 100 0 The amount by which the dehumidifica tion setpoint set on previous page is to be raised during night setback hours as set o
74. at is configured A digital alarm that can be enabled to occur when a fire stat monitor reads on for a specified time period 0 9999 seconds minutes or hours The following are alarms that appear uniquely for RTC systems which also have alarms similar to those just presented System Manual RC IU B3 22 4 123 4 124 ClimaTECH alarm configuration Desf Zone hum fail A digital alarm that can be enabled to occur when a zone humidity sensor failure is detected by the RTC for a time period specified in the alarm 1 9999 seconds min utes or hours Zone temp fail A digital alarm that can be enabled to occur when a zone temperature sensor failure is detected by the RTC for a time period specified in the alarm 1 9999 seconds min utes or hours Supply temp fail Similar to the preceding alarm Cooling failure Occurs when supply temperature is above a set temperature 999 9 to 999 9 for a period of from 1 to 9999 seconds minutes or hours Heating failure Occurs when supply temperature is above a set temperature 999 9 to 999 9 for a period of from 1 to 9999 seconds minutes or hours Sensor discard if control based on two or more zone sensors Occurs at the specified time after one of the controlling sensors fails and the control ler logic stops using the value of that sensor The time setting can be from 1 to 9999 seconds minutes or hours NOTE if all zone sensors fail control will be based on the return air
75. ation p2 analog valve strategy Pre delay for stage Post delay for stage Lockout aux ht in setbk Ambient heat lockout No heat above Range Desf 0 to 60 The number of minutes that must elapse after target plus range is reached before the stage will come on There is one field for each stage 0 to 60 The number of minutes that must elapse after target minus range is reached before the stage will be turned off There is one field for each stage List box Yes No Whether or not auxiliary heat is to be locked out during hours when setback is effective List box Yes No Whether or not heat is to be locked out based on ambient temperature 0 0 to 100 0 Auxiliary heat will be locked out above this temperature plus range next line Heat will be allowed on again when ambient temperature has fallen to lockout minus range 0 0 to 9 9 The range selected creates a dead band around the lockout temperature Heat will be locked out at lockout temperature plus range and once locked out will be allowed on at ambient lockout minus range With an analog gas valve selected the second heating page looks instead like this El Configure ETU 1 11 00 24 AM Heating Ra ux Heat target temp 7 50 Oey Pre delays Troc gers ere ere 7 60 min Fostidelsy e uian e ee ae 7 60 min Lockout aux ht in setbk Yes Ambient heat lockowut 7 Yes No heat abore aonn ee 0 0 F Pange toeo A E eo 20 F Low Fire Posi
76. ation screen for a ClimaTECH controller is shown below System Manual RC IU B3 22 AKC 55 AKC 55 Configuring Miscellaneous alarms Type Alarm delay 2o6cse8es ies T 15 win High zone temp Mormal above 85 0 F Low zone tenp Normal below 40 0 F No Airflow Normal Phase Loss Normal Inverter failure Normal Fire Mormal AFC 55 Inputs HVAC fire Fire Stat g Normal On for LSmin Notice the common alarm delay at the top of the screen It can be set to any number from 0 to 100 The units minutes can not be changed The alarm types are High zone temp Occurs when zone temperature is above a set temperature 999 9 to 999 9 for the specified alarm delay Low zone temp Occurs when zone temperature is below a set temperature 999 9 to 999 9 for the specified alarm delay No Airflow Occurs when zone humidity is above a set percentage the field takes values from 999 9 to 999 9 for a period of from 1 to 9999 seconds minutes or hours Phase Loss The ClimaTECH controller has a digital input to sense signals from the HVAC system s phase loss detector This alarm occurs when the phase loss input has sensed a phase loss for the specified alarm delay of from 0 to 100 minutes Inverter failure The ClimaTECH controller has a digital input to detect failure of the HVAC system s inverter if the system is a variable speed unit This alarm occurs when the inverter has been called for for the specified alarm delay of f
77. below on the left for an inside photocell and on the right for an outside photocell In the screen System Manual RC IU B3 22 AKC 55 AKC 55 Davee on the left a user defined zone name has been chosen On the right one of the listed zone names has been chosen 11 05 2002 Ello Eee gt Wee Saen a eames ae User Det zone nans hs cae ech e sees TParking Lot User defined name TZone 1l Mun of control relays 7 1 Mun of control relays 76 Mun of echedules til Mum of echedules T1 Photocell Phoroce elle eevee ae ee eee Outside Control Senson ss os 2 es TaAveraqe Lontrol method s eea T chd and photo Enable failsafe scheduletYes Time on lz2z 00 AM Time off 12 01 AM Photocell range 7 2 2 7 O0 Photocell range 7100 4 Trip Level 1 0 PG DN Zone name User defined name Num of control relays Num of schedules Photocell Control sensor Control method Enable failsafe schedule Time on System Manual Trip Level 1 0 z UO Sie ae 4 O8 B 6 O8 6 O88 Always keep 1 relay on 1e Auto rotate selection Yes for more PG DN for more List box A great variety of typical names are included in the box that pops up plus User Def that allows the next line Label box any 11 characters 0 to 6 The number of relays controlled by the lighting point 0 to 8 The number of schedules for this point List box Inside The point s photocell s a
78. ble speed drive will be placed in override O to 600 The number of seconds that must elapse between resets O to 600 The number of seconds that must elapse after proof is not detected before a reset attempt List box Yes No Whether or not phase loss will be monitored List box Yes No Whether or not the unit is to be shut down when its phase loss detector input is on Shutdown on smoke detect List box Yes No Whether or not the unit is to be Shutdown on fire alarm shut down when its smoke detector is on List box Yes No Whether or not the unit is to be shut down when a monitored fire alarm occurs Select Cooling from the configuration menu for an HVAC unit of type RTC loyv1is 2002 ES Configure ETU 09 46 40 AM Cooling a Wum of cooling Stages 7 Z Control cooling using Heturn Air Target differential i ape a Target temp for stage 1 74 0 F 2 74_0 F Pre delay for stage 1 1 min 2 1 min Fost delay for stage 1 1 min 2 1 min Humidity adjusts target Yes Humidity sentor Average Dynamic giisetjeci 22 f225 0 0 F No offset 45 0 full gt 55 0 Ambient temp lockout Yes Wo cooling below 40 0 F Wiehe setback 225s 5 2 F Night setback offset c a Minimum M time 7 min Minimum OFF time min Num of cooling stages Control cooling using Target differential System Manual RC IU B3 22
79. ce with the following explanation of network re scan and initialization Network Re scan and Initialization After the EKCs have been configured and addressed you need to re scan the network so that they are recognized then initialize them You must perform the following steps 1 From the Main Menu select Communications From the Communications Menu select I O Network 3 From the I O Network Menu select Re scan Re scanning the network can take several minutes After the re secan return via the Main Menu to the EKC Board amp Points Configuration Screen and 4 Put the cursor on the Init field and press ENTER 4 48 system Manual RC IU B3 22 AKC 55 Davee Upload Button field Placing the cursor on this field and pressing ENTER will cause information programmed at the fixture on the EKC to be uploaded to the AKC 55 controller Wink EKC Wink Button field Placing the cursor on this field and pressing ENTER will cause this individual EKC to blink its display for a short time so that its fixture can be identified Degree Master Board amp Points After Degree Master controllers have been configured and addressed in accordance with the Danfoss manual Degree Master in AKC 55 Systems literature number RS 8B F1 22 or update code number 084R9897 you need to re scan the network so that they are recognized then initialize them This is done from the Degree Master Controls Board amp Points screen From any Configuration Boa
80. controlled O to 100 The photocell level that the controller will RC IU B3 22 AKC 55 Board amp points configuration lighting Powerlink configuration Cutler Hammer configuration Powerlink and Cutler Hammer board amp point configuration System Manual Davee seek to maintain by operation of the dimmer 0 to 100 The minimum dimmer level List box Slowest Slow Normal Fast Fastest The relative sensitivity of control to changes in photocell level List box Yes No Whether or not there is an override switch assigned to the zone Time field 00 00 to 23 59 The duration of an override when the override switch is used List box Yes No When this zone s lights are turned off whether they are to be turned on when a moni tored burglar alarm is sensed 0 to 600 When this zone s lights are off and a burglar override is called for the number of minutes delay before the zone is turned on List box Yes No When this zone s lights are turned off whether they are to be turned on when a moni tored fire alarm is sensed There is no pre delay for fire alarms Minimum output Reaction time Override switch Override duration Burglar override Pre delay Fire override Lighting schedules are found on the next page s Board and points configuration must be completed for all types of points Do this in accordance with the appendix on board amp point configuration Configuration of Powe
81. created for each pair None Fans will not be monitored List box Pressure A pressure sensor will be used to control the condenser fans An analog input sensor input will be created for the sensor Dropleg Temp A temperature sensor on the drop leg will be used to control the condenser fans An analog input sensor input will be created for the sensor List box Yes No Appears if control is by pressure Whether the drop leg temperature will be monitored A Yes answer here will create an analog input sensor input for the drop leg temperature sensor RC IU B3 22 AKC 55 Davee Control method List box Target The condenser fans will be controlled to maintain a target pressure or dropleg temperature depending on which strategy is selected by the answer to the Control sensor question above Cutin Cutout The condenser will be controlled by cut in and cut out based on target pressure or satu rated condensing temperature depending on which strategy is selected by the answer to the Control sensor question above If Cutin Cutout is selected the next page will provide for selection of cut in and cut out setpoints The page is not shown here but is straightforward Target control type Please read about all of the possible answers List box Ramp together Where there is variable speed fan motor control all fans will be brought on in stages at minimum speed then ramped up in speed as a group Ramp stages Where there
82. d Configuring Compressor Alarms Dave For the low suction pressure alarm first look at the cut out setpoint that has been configured for the rack With a target of 14 psi perhaps the cut out is set at 2 or 3 If this is so then a good setting for the low suction pressure alarm might be at the cut out for 10 to 15 minutes The alarm types depend to some extent on the way rack configuration questions were answered Listing all the types of suction group alarms they are Alarms Suspended As explained above when this alarm is enabled it will occur whenever alarm suspen sion for the suction group is activated in the service screen see chapter 5 2 There is no time delay Phase Loss if a phase loss sensor is configured A digital alarm that can be enabled to occur when the phase loss sensor is on for a specified time period 1 9999 seconds minutes or hours Low Pressure if a suction pressure sensor is configured An analog alarm set for a pressure from 999 9 to 999 9 psi or bar and a time limit of from 1 to 9999 seconds minutes or hours High Pressure if a suction pressure sensor is configured An analog alarm set for a pressure from 999 9 to 999 9 psi or bar and a time limit of from 1 to 9999 seconds minutes or hours Low Temperature if a suction temperature sensor is configured An analog alarm set for a temperature from 999 9 to 999 9 psi or bar and a time limit of from 1 to 9999 seconds minutes or hours H
83. dity or dewpoint sensor is used The sensor wired to each point If the sensor is not used leave the Point field set to O List box The type of input None TP2 TP1 OI The input is an on off input 0 10 Volts This type can be used for any sensor whose output is linear from 0 10 Volts List box Control Monitor For zone sensors only whether the point is being used for control or purely for monitoring 4 89 lofis zo002 Configure CT ETU 5 I Points i On Off Inputs Point Type Fail Airflow T Mone Fhase Loss T None Hgt Setbk Over E None Inverter fault None O Closed Fire Stat T Mone AEC 55 Inputs Nane Beast Or Bd Pt Owerride Mo Toltage oo O Phase Loss 5 Mo Toltage oo o Rl g S The third icon from the left at the bottom of any ClimaTECH board amp points screen brings up configuration for on off inputs At the top of the screen are inputs that may be wired to the ClimaTECH unit itself and in the lower half are pertinent inputs wired to to an AKC 55 Point Type Fail ClimaTECH Address and Init screen System Manual The point assigned to each functional input If the input is not used leave the Point field set to 0 List box The type of input Only OIl is a valid choice None TP2 TP1 OI The input is an on off input 0 10 Volts This type can be used for any sensor whose output is linear from 0 10 Volts List box Closed Open The type of signal that will b
84. does not appear that there is any room left in the data definitions area but we can easily expand it Select the heavy horizontal line at the bottom of the data definitions area and it will appear as at left below Toggle to edit mode and as you can see at right the opportu nity to insert a new line presents itself l1l flz 2002 11 0502 CFG l1l flz 2002 11 0502 CFG ES Configure Ca 0l El Configure Ca Ol Unite OL ndo Cancel Unites OL ndo Cancel Style Generic Style Generic Current Value f Errori 7 On Current Value f Errori 7 On Now press ENTER and the new line appears On the new line create argument SI3 an SI ppm and define it by selecting the second miscellaneous SI we created Compr Rm Leak Finally insert another new line and create argument NUM4 for the 500 ppm leak setpoint and data definitions are complete When evaluating the logic in the rules area the controller will go line by line in the rules area and stop at the first statement that it finds true We want the OI to be System Manual RC IU B3 22 4 135 Desf normally off but to be on whenever the temperature SI1 is equal to or greater than 90 F Num2 OR whenever the leak sensor SI3 is equal to or greater than 500 ppm Num4 Writing rules Notice that SI1 already appears in the rules area on the first line We could change it if we wanted to any of the other three arguments we have defined but it is exactly where we ne
85. e Flush Cycle Start Time Time of day The time at which the flush cycle will be initiated Flush Cycle Duration 10 to 20 The number of minutes the flush cycle will run Lockout on low head pres List box Yes No Whether or not heat reclaim will System Manual RC IU B3 22 4 37 Refrigeration alarms configuration Desf be locked out when head pressure is below a setpoint to be entered on the next line Lockout Pressure 99 0 to 500 0 The low head pressure at which heat reclaim will be locked out Lockout on liquid level List box Yes No Whether or not heat reclaim will be locked out on low refrigerant level Liquid level sensor type List box Sensor input An analog sensor is used for liquid level On Off input A digital sensor is used for liquid level None There is no liquid level sensor monitored Liquid 99 0 to 99 9 The liquid level as a percentage of receiver volume at and below which heat reclaim will be locked out As refrigeration configuration changes alarms are automatically created but not enabled for the analog and digital inputs created Trip levels and time limits can be set for these alarms by selecting Alarms from the Configure Rack menu and pressing ENTER The Configure Rack Alarms menu looks like the illustration at left below l rli rz00z 01 07 41 PH 10 10 2002 Type Name Address Suction Phase Loss Phase Loss A 00 0 P Compressors Disabled Suction Pres 44 00 0 Ci
86. e received if the drive has a fault Select the rightmost icon on the Configure CT I O points screen and you will see this RC IU B3 22 AKC 55 OfZLSE Loot Se Am Conftiqure CT ETU 5 I O Points My ClimaTECH Address and Init Name gt CEE ETHS Address 3 Locate Locate Init fier D da Upload Upload TEE In the field labeled address give the ClimaTECH node an address from 0 to 99 that is unique among all the ClimaTECH nodes on the I O network for this AKC 55 Re member that there can be only 32 HVAC units per AKC 55 After addressing place the cursor on the Locate field and press ENTER A message will appear asking you to press the service pin on the ClimaTECH controller Go to the controller and depress the service pin After completing the Locate procedure place the cursor on the Init field and press ENTER Uploading to the AKC 55 If the ClimaTECH controller is configured with a handheld remote control the configuration data is stored locally It is not stored in the AKC 55 until uploaded This is accomplished by placing the cursor on the Upload field and pressing ENTER Seasons 4 Smart Coil HVAC Unit configuration Smart Coil packaged HVAC systems manufactured by Seasons 4 Inc have some unique configuration requirements For these units select SC4 as the type on the Configure HVAC menu At left below is the SC4 menu At right is the screen for fan configuration AKC 55 System Manual RC IU
87. e used by the controller Rec The input value is to be received from another node other than this RTC board on the AKC 55 I O network The board and point that is broadcasting the state of the input must be given in the next column Address field If the input state is received from another node on the AKC 55 I O network enter here the address of the point that is to be received In the lower half of the screen the AKC 55 Inputs Name Beast System Manual Label field not changeable The name of the point The RTC board s software can only use the listed inputs from the AKC 55 I O network The names always appear as in the illustration above whether the input is used or not List field one for each point No The input is not configured or its state is not to be used by the controller Rec The input value is to be received from another node other than this RTC board on the AKC 55 I O network The board and point that is broadcasting the RC IU B3 22 AKC 55 AKC 55 Dave state of the input must be given in the next column On List field Voltage The input state will read ON when the point senses voltage No Voltage The input state will read ON when the point senses no voltage Bd Pt Address field If the input state is received from another node on the AKC 55 I O network enter here the address of the point that is to be received Configuring RTC I O variable outputs Here is the screen fo
88. e APE oe ge oh MO or MoE eae a Ae Tea OSE Ambient temp lockout Yes No cooling below 7 40 0 F Fanget i a Perea eee ore a Soe i Minimum run time TZ min Delay between Stagqges 73 min Night Setback 02 2 TYes Night setback offset 7 5 0 F OSE Paice Svite oaeeo fres Owerride duration T60 min Mum of schedules l PG DN for more No of zone sensors Controlling sensor Num of cooling stages Setpoint Range Ambient temp lockout No cooling below Range Minimum run time Delay between stages AKC 55 System Manual 0 to 5 The number of zone temperature sensors List box Min Temp Control will be based on the lowest value of all of the zone temperature sensors Max Temp Control will be based on the highest value of all of the zone temperature sensors Average Control will be based on the average of all the zone temperature sensors Zone Temp 4 1 etc each zone temperature sensor will be available as a choice in the list Control will be based on the single selected sensor List box None Four Of the four cooling stages in the unit the number to be controlled by the AKC 55 Either all units are controlled or none are controlled 0 0 to 100 0 The desired temperature at the control ling sensor 9 9 to 9 9 The range selected creates a dead band For example if the target is 72 and the range is 2 the stage will come on at 74 and will not be turned off
89. e Setup field and pres ENTER and the setup screen will appear as at right above For each breaker there is a list box with the names of the zone names that can be assigned to that breaker Select the appropriate zone name for each configured breaker and setup is complete Powerlink panels require that you put the cursor on the Locate field and press enter A popup box will appear on the screen instructing you to press the service pin on the breaker panel You will have a few minutes to do this Successful location will be indicated by a message in the dark field at the bottom of the screen Cutler Hammer panels do not require the locate procedure Energy Meter Configuration An AKCESS system can monitor Danfoss approved energy meters which have an Echelon interface Each AKC 55 can monitor up to five meters Each current source must have a dedicated meter After installing the energy meter and current transformers according to instructions provided by their manufacturer the meter is connected to the AKCESS I O network and becomes a node on the network after configuration Only one of the meters connected to an AKC 55 can be used for demand limiting To begin configuration of utility meters select Energy from the main menu and press ENTER The Energy Menu appears as at left below Select Utility Meter and press ENTER and the Utility Meter Menu appears as at right below System Manual RC IU B3 22 AKC 55 AKC 55 11 06 2002 T 11 0
90. ears to the right of the action level as shown in the screens shown below 4 08 2003 11 54 20 AM Type Name Address Alarms Suspended Hack C Alarms Suspended Hack C Disabled Disabled Phase Loss Phase Loss C o8 1 Phase Loss Phase Loss C os 1 Normal On for lmir Normal On for lmin Suction Pres C dO6 1 Mormal below 50 0 psi for Smin Low Pressure High Pressure Suction Pres C 06 1 Low Pressure Suction Pres C 06 1 Normal below 3 0 psi for Wiin High Pressure Suction Pres C 06 1 Disabled Disabled Low Temperature Suction Temp C 06 5 Low Temperature Suction Temp C 06 5 Disabled Disabled PG DN for more PG DN for more The screen at left above shows the default alarm pressure and time settings that appear as soon as the alarm action level is changed to something other than disabled In the screen at right above we have moved cursor first to the pressure setting where we changed the pressure to 3 0 psi from 50 0 and then to the time setting where we raised the time to 30 minutes The low pressure alarm will now occur whenever the suction pressure sensor for rack C reads below 3 0 psi for 30 minutes Since it is set AKC 55 System Manual RC IU B3 22 4 113 4 114 Field limits and units for analog alarms Disabling What alarms are needed Frequently Asked Questions Desf for an action of Normal the alarm will dial out only once The timer will reset to 0 any time the pressure rises above 3 0 psi only
91. ed for the rack Know the range of pressures that the rack will operate in when loads product temperatures defrosts and other factors are working correctly Then set the alarms at the upper high pressure and lower low pressure limits of that range Start with conservative settings If your settings are too tight on one end or both and you are getting a large number of false alarms make sure the system is operating safely for the product and equipment then extend the alarm range gradually If you don t ever get any false alarms the alarm parameters are probably too loose Remember that more or less temporary factors such as overloading service and cleaning can cause alarms to occur Be careful to investigate any suspicious alarm that occurs when causative activities are going on in the store FAQ 2 Can you be more specific and perhaps give thumb rules for alarm settings OK let s assume that this particular rack is set for a target of 14 psi and is operating to your satisfaction with that setting Typically we find that adding 10 psi to the target and setting the trip level for high suction pressure at 24 psi for 30 minutes is a good starting setting If the suction pressure is more than 10 psi above target for a half hour we should suspect that something is keeping the rack from making target pressure One possible cause is an off line compressor System Manual RC IU B3 22 AKC 55 AKC 55 Types of suction alarms liste
92. ed it Notice that there are several blank spaces to the right of S11 These alternate be tween arguments and operators Put the cursor on the first blank to the right of SI1 and open the list box 11 0502 O3 56 42 PM fle zo00z2 11 0502 CFG 11 12 2002 CFG Hi Configure Ca Ol OTL HS Configure Ca Ol OT Units OI Units OI ndo Style Generic Style Generic Data Definition Data Definition Value SIl Jos z Compr Bm Temp o 0 F SIl pos 2 Compr Em Temp 7 Mum 90 0 F 30 0 F Mumz 90 0 F ois OS 1 Compr Bm Leak Oppim Compr Bm Leak Mumi 100 0 600 0 if za True line vesult SIl __ Off Terror True Or Or Mme Value i Errori 7 On Current YWalue On These are all mathematical operators appropriate to sensor inputs We will select gt as the operator for this statement Having done that move one field to the right and select Num2 as the argument to complete the statement The complete statement appears in the screen at right above the statement is SI1 gt Num_2 The list box is open in the Result column because if the statement is true we want the OI which in turn controls the RO for the EXFAN to be On and the default result as seen in the screen at left above is Off Now we change the result to On and the entire line effectively says If SI1 gt Num2 Ca 01 OD will be On The controller s logic processor will stop at the first true statement and produce whatever re
93. ee ee Avene E AIOS Wum of aux heat stages 4 Se pcb rit ay E aga eee 7 69 0 F FPanae nh a a E A E A II OFE Ambient temp lockout Yes No heat abore ee 7O0 0 F Pangen treaa oa tee ene ae hee Coe ee oe Minimum run time TZ min Delay between Stagqes 73 min Night lt 5 et Ey aie ee a TYes Night setback offset 7 5 0 F Override SW eh fres Owerride duration T60 min Mum of schedules rL No of zone sensors Controlling sensor Num of ht rclm stages Setpoint Range System Manual 0 to 5 The number of zone temperature sensors List box Min Temp Control will be based on the lowest value of all of the zone temperature sensors Max Temp Control will be based on the highest value of all of the zone temperature sensors Average Control will be based on the average of all the zone temperature sensors Zone Temp 4 1 etc each zone temperature sensor will be available as a choice in the list Control will be based on the single selected sensor 0 to 4 The number of heat reclaim stages in the SC4 unit 0 0 to 100 0 The desired temperature at the control ling sensor when heat reclaim is being used 0 0 to 9 9 The range selected creates a dead band For example if the target is 68 and the range is 2 the RC IU B3 22 AKC 55 System Manual Num of aux heat stages Setpoint Range Ambient temp lockout No heat above Range Minimum run time Delay between s
94. efault label if you want To configure a suction group press MENU to return to the Main Menu then select Configuration then Refrigeration The Rack Configuration screen appears as at left above Select the rack and a Configure Rack menu appears as at left below System Manual RC IU B3 22 AKC 55 AKC 55 02 2002 03 41 32 AM Receiver Rack ic Suction Info Heat Reclaim azys2o002 9 42 50 AM Confiqure Back amp A Suction AA A Suction AE 15 Evaporators Board Points P CoupressorsS Ei Alarms M Condensers Once at suction configuration menu shown at right above select the suction group you want to configure and press ENTER The Suction Info screen for that group will appear as at left below As you configure questions may appear that are not included on the default screen The screen at left below shows all the possible lines revealed 02 2002 Toc Ia zI am Suction 34 Suction AL A Suction Info A Suction Info Suet ront ab Deore ed eee 2 T Suction Suction Lo i eee kere Suction PSIG Carget cause eee so T psi PSUGy Barger o rE a O Oper PSIG Safety cutout O O0pei PSIG Safety cutout Ope Adaptive suction control None Adaptive suction control tARC 55 BSP eee een E AAN 7O0 0 Tep target to a aae cote esos o o F Ifa alte ls ey a eae neta See ee ae 2 DEF Maximum pressure float 4 0 psi Fost defrost delay TZ0
95. er or not a phase loss detector is monitored List box All configured phase loss detectors Select the phase loss detector to monitor List box Yes No Whether or not the fan is to be shut down on detection of a phase loss by the moni tored detector Hl Configure Unit 1 Mam of cooling stagqes 7 4 Oecupied setpoint o o F Umoccupied setpoint o 0 F Lockout below ambient __ 0 0 F Delay between stages 2 7 l min Num of cooling stages Occupied setpoint Unoccupied setpoint Lockout below ambient System Manual 0 6 The number of cooling stages in the HVAC unit 0 0 to 150 0 The cooling setpoint during operating hours as configured in the Store Info screen 0 0 to 150 0 The cooling setpoint during store closed hours as configured in the Store Info screen 0 0 to 150 0 The outside ambient temperature below which cooling will be locked out RC IU B3 22 AKC 55 Devt Delay between stages O to 99 The number of minutes after the start of a cooling stage before the next stage can start Also the minimum on time for every stage ClimaTECH heating configuration There are two pages of settings for heating configuration 1Oo 1ls 2002 HS Configure CT ETU 5 Heating Ra Hl Configure CT ETU 5 Heating Ra Num of heat relm stages z Num of aux heat stages 1 Occupied setpoint 0 0 F Occupied setpoint 7 D20 F Unoccupied setpoint 0 0 F Unoccupied setpoint 0 0
96. et used in temperature control The range is the amount above or below target that the actual sensor temperature is allowed to change before a control action is taken List box Various types of defrost can be chosen None Hot Gas Time Off Air or Electric 1 to 600 The number of seconds that refrigeration will remain off after termination of defrost Defrost time settings made on the pages that follow must also be considered If a minimum defrost time is used that time must elapse regardless of the settings made on this page If a defrost duration is specified either that time must elapse OR the requirements set on this page must be satisfied for defrost to terminate List box Various termination strategies are listed Defrost sensor There is a dedicated defrost tem perature sensor that will be used to terminate defrost Disch air snsr The fixture discharge air sensor will be used to terminate defrost at a set temperature On Off Input An electrical switch such as a Klixon System Manual RC IU B3 22 4 19 Termination temp Term relay for each case Term relay for each case Desf is wired to a digital input on off input and will be used to terminate defrost None Defrost is terminated strictly on time Hot gas return Hot gas defrost is terminated when a return air sensor reaches a setpoint 99 0 to 200 0 The defrost temperature sensor value at which defrost will terminate List box Yes No Whether or not
97. ets 7 3 Inverter proof delay 10 sec Hin time between resets t30 sec PG DM for more The fields and their co No of compressors Proof type Reset Bitzer with RO Compressor size No of unloaders Unloader capacity Inverter control Inverter min speed Inverter max speed RPM at max speed Inverter max resets Inverter proof delay System Manual ntents are as follows 0 to 9 List box The means by which proof of compressor operation is monitored None No proof OI A digital input on off input is used for proof CT A current transformer is used for proof Bitzer Proof is obtained from a Bitzer electronic module List box Yes No Whether or not Bitzer compressors are reset by a digital output relay output 1 to 500 The capacity of the compressor 0 to 4 The number of compressor unloader stages 1 field per unloader 0 99 The percent of capacity shed by the respective unloader List box Type of variable speed control None No inverter control VO An inverter is controlled by an analog output variable output VLT A Danfoss VLT adjustable frequency drive is used 1 0 to 150 0 The minimum percentage of rated speed at which the inverter will run the compressor 1 0 to 150 0 The maximum percentage of rated speed at which the inverter will run the compressor 1 to 9999 The RPM that will be displayed at maxi mum percentage 0 to 10 The number of resets after
98. evealed Additional information will be found in section Chapter 4 5 on alarms AKC 55 System Manual RC IU B3 22 4 23 Configuring condensers jiz l 03 23 PH az 01 05 13 PM Low Temp AA E Evaporator Alarms E Evaporator Alarms Low Temperature Low Temperature Log Only If below fO0 0 F for 15 min High Temperature Disabled High Temperature Normal If above fO0 0 F for 15 min Delay after defrost for 60 Min Dual Temp Dual Temp Low Temperature Disabled Low Temperature Disabled If below 50 0 F for 15 min High Temperature Disabled High Temperature Critical If above fO0 0 F for 15 min Eey switch override Yes Select misc point Wot configured Select misc point Wot configured Delay after override for 60 min Delay after override for 60 min Box door open Disabled Box door open Normal If open for 15 win Door open position Disabled Door open position Log Only Tf above 50 0 for 15 min Each alarm has three fields Alarm level List box Disabled The alarm is deactivated but any settings remain in memory so that they will be at hand when the alarm is reactivated Log only When the alarm occurs the fact will be recorded in memory but the alarm will not be commu nicated beyond the AKC 55 over telephone line or network Normal When the alarm occurs it will be communi cated beyond the AKC 55 one time over telephone line or network to the locations specified in the alarm routing screen Critical
99. evice as follows Point 1 Point 2 Point 3 Point 4 Point 5 Point 6 Point 7 Point 8 Fan Economizer Cool 1 Cool 2 Cool 3 Heat 1 Heat 2 Heat 3 On List field N Open The point is wired through normally open contacts N Open The point is wired through normally open contacts Here is the screen for sensor inputs reached with the second icon from left System Manual RC IU B3 22 AKC 55 Configure ETU I O Points iJ Sensor Inputs ARC 55 Point Name Config EBd Ftr 1 zone l Humidity Yes z COZ Sensor Yes 3 Outside Humidity Yes 4 zone l Temp Rec 00 0 5 Zone Z Temp A o o 6 Outside Temp Mo 7 Supply Air Temp Mo a Return Air Temp Mo Ei K PE a as Point 1 to 8 The number of the point Name Label field contents depend on system configuration The name of the point The names are fixed since the hardware points on the RTC board are dedicated and can serve only for the listed devices The names always appear as in the illustration above whether the sensor is used or not Config List field one for each point Yes The sensor is configured It should be installed if this answer is given or the configuration should be changed No The sensor is not configured Its value can not be used by the controller Rec The sensor value is to be received from another node other than this RTC board on the AKC 55 I O network The board and point that is broadcasting the value must be gi
100. eys to move from space to space and the up and down arrow keys to select the character for that space When the name appears as you want it press ENTER Locate Button field Each VLT must be located by the AKC 55 Place the cursor on the Locate field and press ENTER Then when instructed by a pop up box on the AKC 55 screen go to the VLT and press the service pin The AKC 55 will then read the VLT address which will appear on the screen to the right of the Locate field DCU circuits Board amp Points Section to be added AKC 55 System Manual RC IU B3 22 4 51 Chapter 4 2 Davee Configuring HVAC To begin configuring HVAC select Configuration from the Main Menu then HVAC If there are no units configured the screen looks as at left below If one or more units are already configured a menu screen will appear that lists all the units as at right below In the example one unit of each possible type has been added In practice this would be a very unlikely store To add a new unit simply put the cursor on the No of HVAC Units field and increase the number by one A new unit will appear with a default name which will at least temporarily be Unit n where n is the new total number of units up to that line There are instructions below on how to change the name 10 14 2002 14 24 05 PH VAC Confiquration No of HVAC Units o No of HVAC Units 6 No of phase loss nonitors fl Wo of humidity sensors L W
101. f a group of sensors will be RC IU B3 22 AKC 55 AKC 55 RTC Air Damper configuration Target Target differential Pre delay for stage Post delay for stage Cooling low limit Night setback Night setback offset used Davee Zone 1 etc Any single humidity sensor or combina tion of sensors will be used 0 0 to 100 0 The humidity or dewpoint value desired at the controlling sensor or combination specified above 0 1 to 15 0 The differential forms a deadband above and below the target in which no control actions are taken Dehumidification will be turned on at target plus differential and turned off at target minus differential 0 to 60 The number of minutes that must elapse after target plus range is reached before the stage will come on There is one field for each stage 0 to 60 The number of minutes that must elapse after target minus range is reached before the stage will be turned off There is one field for each stage 0 0 to 100 0 The temperature at and below which dehumidification is disallowed List box Yes No Whether or not the dehumidifica tion target is to be raised by an offset next line during store closed hours according to a schedule or sched ules in the Store Info screens 0 0 to 100 0 The amount by which the dehumidifica tion setpoint set on previous page is to be raised during store closed hours according to a schedule or schedules in the Store Info screens You will u
102. f individual evaporators by an AKC 164 or AKC 161 Smart Case Controller Sensor Target pressure is adjusted based on any sensor on the AKC 55 I O network Dynamic The AKC 55 analyzes the performance of every case on each individual circuit and adjusts target pressure intelligently by using the case sensor that varies most from the setpoint For the first group to the left of the hyphen 01 to 99 for the second group to the right of the hyphen 1 to 8 The board and point address of the fixture sensor used by the adaptive control algorithm Does not appear when dynamic adaptive control is selected Note that board and point numbers use a different format with AK2 modules See the AK2 I O user manual for more information 50 0 to 100 0 The temperature that the adaptive control algorithm will seek to maintain in the fixture Does not appear when dynamic adaptive control is selected 0 0 to 100 0 The dead band around the temperature target As long as the fixture temperature remains in this range the suction pressure target will not be modified Does not appear when dynamic adaptive control is selected 0 to 99 9 The number of psig that the adaptive algorithm will be allowed to cumulatively add or subtract from the suction pressure target 0 to 60 The number of minutes after termination of defrost during which there will be no target adjustment Does not appear when Sensor is selected as the type of adaptive control
103. f minutes the valve will be maintained at low fire duration before beginning to modulate 50 0 to 100 0 Sets the maximum valve opening allowed 0 0 to 75 0 Sets the maximum valve opening al lowed Degrees to max opening 0to6 The number of degrees of rotation of the RTU dehumidification configuration valve spindle from minimum to maximum percentage Begin by selecting Dehumidify from the Configure RTU menu lofis zo00F 09 07 37 AM Ei Configure ETU 1 Dehumidi fy R Dehumidification type Cooling Eclm heat during dehumidMo Aux heat during dehumid 70E Control temp sensor TAverage TAE E AA E E ee 7 SO 0 F Target differential i 2 Pre delay for stage l 1l min 2 1l min Fost delay for stage l amp min F Ff min Cooling low limit 7 68 0 F PG DN for more Dehumidification type List box None Cooling Dessicant Whl The type of dehumidification used Rclm heat during dehumid List box Yes No Whether or not heat reclaim is allowed during dehumidification Aux heat during dehumid List box Yes No Whether or not auxiliary heat is allowed during dehumidification Control dehumid on List box System Manual Dewpoint Dehumidification will be controlled based on a specified dewpoint target A dewpoint sensor is required RC IU B3 22 4 61 Control sensor Control humidity sensor Control temp sensor Target Target differential Pre delay for
104. ght above The only changeable field is the Suspend for field which can be set to any value from 0 to 9999 A full description of the alarm suspension function will be found in chapter 5 2 Using the Service Screens Let s return to the Configure Rack C Alarms screen shown at left below and configure an actual alarm Move the cursor down to the level field for the Phase Loss alarm It currently reads Disabled When you select the field a list box ap pears showing all the levels that can be chosen for the alarm as shown at right below 3 55 49 PY a oe ee 03 57 41 PH Type Nane Address Type Nane Address Alarms Suspended Hack C T Back C T Disabled Phase Loss Phase Loss C os 1 Phase Loss C os 1 Low Pressure Suction Pres C 06 1 Disabled Suction Fres C O6 1 High Pressure Suction Pres C 06 1 Suction Pres C oO6 1 High Pressure Disabled Disabled Low Temperature Suction Temp C 06 5 Low Temperature Suction Temp C 06 5 Disabled Disabled PG DN for more PG DN for more SSeS E Notice that in the screen at right above we have moved the cursor to Normal in the list box When we press ENTER the level selection is complete and a condition appears under the name of the alarm as seen at left below 04 50 52 PH Alarms Suspended Hack C E Disabled Alarms Suspended Hack C E Disabled Phase Loss Phase Loss C o8 1 Phase Loss Phase Loss C o8 1 On for 1lfmin Normal On for BE Low Fress
105. groups 7 Pie Ere Wot pea se a n 2 Pertrig Cypern ie eaa Da Gye See ee eee IPSS CCC GEE aa a oo ene eee Monitor phase loss fe Mo i Monitor phase loss 1 Generate input for each R401B8 Generate input for each i Shutdown phase loss 7 Shutdown phase loss 7 The list box appears as shown at left above when you move the cursor to the field and then press the key or at your PC right click Then using the UP and DOWN arrow keys you can move the cursor to make a selection In the example at right R404A has been chosen The cursor actually stayed in the same position but the window moved When you have put the list box s cursor on the selection you want press ENTER to save your Selection Some list boxes contain only two choices for example Yes and No in the Monitor phase loss field Some may contain many choices When that is the case one of the lines in the box will contain three dots When the cursor is moved to the three dots additional choices appear Now that we understand navigation and making changes we can go on to a discus sion of each of the configuration screens In the rack Info screens the following are the fields and their possible contents Rack label Upper case letters A to Z The name of the rack 2 stage system List box Yes No No of suction groups 0 to 5 Note that for a rack with existing configura tion entering and confirming a 0 will cause deletion of
106. guration menu is shown at left below When you select HVAC from the alarm configuration menu a list menu headed Configure HVAC Alarms will appear It will list every HVAC unit that you have configured Such a list screen appears at right below For this very unlikely store we have configured one unit of every type ee E Alarm Configuration Refrigeration B Bouting HVAC O O O O Phone Numbers 25 Hiscellaneous BS IF Netvork System Frinter LJ Service ae The unit types listed are as follows AHU RTU RTC SC4 System Manual RC IU B3 22 E Configure HVAC Alarms ETU Unit BIC Unit BIC Unit CT 65 Unit CT lO 4 Unit l z 3 4 5 6 Air handling unit A built up system Rooftop unit A packaged rooftop unit Rooftop controller Any HVAC system controlled by a Danfoss networked or standalone RTC board Smart Coil Seasons4 unit AKC 55 AKC 55 AHU RTU and SC4 alarms RTC alarms Davee CT65 ClimaTECH 65 HVAC controller CT1024 ClimaTECH 1024 controller We will review each of the alarm types for AHU RTU and SC4 systems which have almost identical alarm sets Then we will discuss the alarms that appear only for RTC and ClimaTECH systems These are typical alarms screens None of the default parameters have been changed In an actual store you would probably adjust them ee ee Type Nane Address Type Nane Address High zone temp zone Temp l 1 oo o HVAC smoke Smoke Stat 1 00 0
107. gure Miscellaneous menu When the Configure Misc Relay Outputs screen appears increase the number of relay outputs in the first line by 1 or a higher number to match the number of outputs you want to configure Edit the name of the input then complete configura tion by making a selection for each field for each new input the enter the number of on off inputs you want to configure A step by step configuration example for a miscellaneous relay output appears in the first example in the miscellaneous calculations section which follows in a few pages You can configure up to 40 miscellaneous sensor inputs per AKC 55 To configure a miscellaneous sensor input select Sensor Inputs from the Configure Miscellaneous menu When the Configure Misc Sensor Inputs screen appears increase the number of sensor inputs in the first line by 1 or a higher number to match the number of inputs you want to configure Edit the name of the input then complete configuration by making a selection for each field for each new input the enter the number of on off inputs you want to configure A step by step configuration example for a miscellaneous sensor output appears in the first example in the miscellaneous calculations section which follows in a few pages You can configure up to 40 miscellaneous on off inputs per AKC 55 To configure miscellaneous on off inputs select On Off inputs from the Configure Miscellaneous menu When the Configure Misc On Off Inpu
108. he day under normal operating conditions when using normal power There is one field for each hour of the day from 00 to 23 This screen has two pages in order to list all the hours of the day Page down after entering normal load for every hour to finish configuration of the meter The page looks like this System Manual RC IU B3 22 AKC 55 AKC 55 11 06 2002 i Meter Setup Meter 1 Maximum emergency load 1000 Start shedding at 7 30 Start restoring at T 80 Enable coupling switch Raves Wumber of normal steps 7 O Wum of emergency steps 7 O Normal Soft start begin lewel QO Coupling Begin Lewel 7 QO Emergency Soft start begin lewel OQ Coupling Begin Lewel O The fields in the screen are these Maximum emergency load 0 to 99999 Enter the upper demand limit that you do not wish to exceed when the emergency generator is running Start shedding at 0 to 100 Enter the percent of maximum load at which you want to start shedding loads Start restoring at 10 to 80 Enter the percent of maximum load at which you want to start restoring loads which have been shed Enable coupling switch List box Yes No In installations where there are two transformers and or two emergency generators a coupling switch can be used to connect both loads to one source in case the other source fails Number of normal steps 0 to 10 The number of steps levels which you will allow to be shed under
109. he manufacturer s specifications 1 0 to 150 0 The maximum percentage of the maximum RPM that the fan motors will be run Insure that the entries on this screen are within the manufacturer s specifications 1 to 6000 The number of RPM at the maximum speed specified in the preceding setting Inverter max resets 10 to 10 The maximum number of inverter resets after which a subsequent reset condition will place the inverter in override Inverter reset delay 1 to 600 The number of seconds that must elapse between inverter reset attempts Inverter proof delay 1 to 600 The number of seconds without proof before an inverter reset is attempted High pressure bypass 0 0 to 500 0 The pressure at and above which all System Manual fans will be run and at full speed if variable speed motor control is used When high pressure bypass occurs a service technician is required to clear the bypass by using the appropriate button in the status screen RC IU B3 22 4 35 Freeze Protection Freeze prot temp cutout Freeze prot temp cutin Dump Valve Dump on schedule Num of dump schedules Dump on freeze protect Overide pump on frz prot Water flow monitor Desf List box Yes No Whether or not freeze protection control is implemented 99 0 to 99 9 The outside ambient temperature at and below which evaporative cooling will be locked out 99 0 to 99 9 The outside ambient temperature at and above w
110. henever heating cooling dehumidification or venting is called for 0 to 60 The number of minutes the fan will run after the last stage of heating cooling dehumidification or venting is turned off 40 0 to 150 0 When heating is on fan speed will be ramped up when LAT leaving air temperature is greater than this setpoint 40 0 to 70 0 When cooling is on fan speed will be ramped up when LAT leaving air temperature is less than this setpoint 30 0 to 60 0 When dehumidification is on fan speed will be ramped up when LAT leaving air temperature is less than this setpoint Min 0 0 to 70 0 Max 50 0 to 130 0 The highest and lowest percent of rated maximum speed last line on the screen that the inverter will be allowed to drive the fan motor Min 10 0 to 100 0 Max 50 0 to 130 0 The highest and lowest percent of rated maximum speed last line on the screen that the inverter will be allowed to drive the fan motor when heating is on Min 10 0 to 100 0 Max 50 0 to 130 0 The highest and lowest percent of rated maximum speed last line on the screen that the inverter will be allowed to drive the fan motor when cooling is on Min 10 0 to 100 0 Max 50 0 to 130 0 The highest and lowest percent of rated maximum speed last line on the screen that the inverter will be allowed to drive the fan motor when dehumidification is on 1 to 9999 The rated maximum speed of the fan motor from the data plate
111. hich evaporative cooling will be allowed to run List box Yes No Whether or not a dump valve is controlled List box Yes No Whether or not the dump valve will be controlled by a schedule to be entered on the following page s 1 to 8 The number of effective dump schedules to be entered on the following page s List box Yes No Whether or not the dump valve will be activated at the freeze protect setpoint List box Yes No When the pump is on because of high discharge pressure whether or not to shut down the the pump at the freeze protect setpoint List box Yes No Whether or not there is a water flow monitor Dump schedules The next page allows entry of the first four dump schedule A subsequent page will be added if there are more than for schedules Schedules have been explained in the earlier section on evaporator defrost configuration The screen is not shown here Receiver configuration To configure the receiver return to the Configure Rack menu put the cursor on Receiver and press ENTER The screen is as shown below loysloyszo0z Liquid level sensor typetSensor Input Surge control 4 36 System Manual List box Yes No Whether or not surge control will RC IU B3 22 AKC 55 AKC 55 Heat reclaim configuration Davee be implemented Cutin 0 0 to 100 0 The temperature at which the surge valve cuts in Cutout 0 00 to 100 0 The temperature at which the surge valve closes
112. hod Split when below 7 SO 0 F Split deadbasnd ceense 4 F ile Ce ahh Grab ph ene acne E THone Split on heat reclaim Mo Split pressure owerride Yes Cut in 200 0psi Cubout 275 0ps i DE CH Split condenser Split based on Control method Split when below Split deadband Drop fans for more Setpoint Level 1 Eee de Level 2 ode Level 3 ees ee TDeadkhand 4 2 2 2 A o o o o mj j j ij Split pressure owerride Yes Cut in z0 pzi Cutout z275 00psi PR DN for more List box Yes No Whether the condenser is split List box Ambient Control is based on ambient temperature Discharge Control is based on discharge pressure List box lvalve Isplit A single valve when closed limits refrigerant flow to a part of the condenser providing two stages usually 50 100 2valve 2split Two valves are used to provide three stages usually 50 75 100 2valve 3split Two valves are used to provide four stages usually 25 50 75 100 3valve 3split Three valves are used to provide four stages usually 25 50 75 100 0 0 to 100 0 Only with single split valves The temperature below which the condenser will be split 0 0 to 25 Only with single split valves The deadband above the previous setpoint in which unsplitting cannot occur List box Even Odd Only with single split valves Which fans are dropped when condenser is split System Manual R
113. i Conftiquration EF Miscellaneous History Before you can enter configuration information you must select Authorization and enter a valid authorization code and account code Using the right arrow move the cursor to Authorization and press ENTER The Authorization Menu will appear as at right above with the cursor in the Auth field When you have entered the access code and account number given to you by the system owner you will see the words Authorization accepted appear briefly in reverse video at the very bottom of the screen After initial configuration you will be able to make changes by several different avenues which are discussed in Chapter 5 Using the System To select from any AKC 55 menu first use the arrow keys to move the cursor to the item you want then press the ENTER key You can use the EXIT key to retrace System Manual RC IU B3 22 4 1 ca your steps level by level Selection of Units and Language Before using the system you may wish to change the language used on the screens the units used for pressure and temperature or the date and time format These settings will be for the local PC only and will not affect the display at the AKC 55s in the system To change the displayed units select Store Information from the main menu and then choose Units Languages In the Configuration Units Languages screen select the language you want to see in the controller screens then select either psi or bar for
114. igh Temperature if a suction temperature sensor is configured An analog alarm set for a pressure from 999 9 to 999 9 psi or bar and a time limit of from 1 to 9999 seconds minutes or hours High desuperheat if a suction temperature sensor is configured An analog alarm set for a pressure from 999 9 to 999 9 psi or bar and a time limit of from 1 to 9999 seconds minutes or hours We will return now to the configuration screen for rack C alarms and select Com pressors Type Name Address A Suction High Pressure Disch Press C Oo6 z Comp short cycle Compressor C 1 08 1 Circuits Disabled Comp oil failure Oil Fail C 1 09 6 Condenser Disabled High oil resets Oil Reset C 1 09 7 1 Other Disabled High Temperature Disch Temp C 1 06 7 5 Bitzer Disabled PG DN for more System Manual RC IU B3 22 4 115 The first page of the compressor alarms screen appears as at right above For a multi compressor rack there will be several pages of alarms The alarm types depend to some extent on the way rack configuration questions were answered The alarms for the lead compressor will be listed first and similar alarms will follow for the other compressors on the rack Listing all the types of alarms they are High Pressure discharge pressure sensor An analog alarm set for a pressure from 999 9 to 999 9 psi or bar and a time limit of from 1 to 9999 seconds minutes or hours Comp short cycle compressor digital sensor A cycle
115. igital input 0 to 1439 The number of minutes that control will be overridden after operation of the override switch 0 to 8 The number of operating schedules entered on the following page s RC IU B3 22 4 95 SC4 dehumidification configuration lo fis z002 iH Configure 54 Unit 4 10 15 45 AM Dehumidi ty R Num of Stages ao un Four roll 2484 aie a ls a harem te ben es ee ere eee ae T4535 BUS Cpe Re oe ena cre cn a ere 2 Cooling L m linit o T 65 0 F Ambient temp lockout Yes No dehum below 7 40 0 F EA s aif Tab gy ical ee el eer ee eae Rene a 7 2 0 8 Minimum run time TZ Win Delay between Stagqes 73 min Night Setbacks scocca TYes Wight setback offset 7 Z Uryerride Switch lt T Override duration T60 min Wum of schedules Tl Seasons 4 Password 25 ae RE PG DN for more Num of stages Setpoint Range Cooling low limit Ambient temp lockout No dehum below Range Minimum run time Delay between stages Night setback Night setback offset Override switch System Manual List box None Four Whether or not dehumidifica tion is controlled in the SC4 unit All SC4 units have four stages of dehumidification 0 to 99 The percent desired relative humidity in the zone 1 to 15 The range selected creates a dead band For example if the target is 45 and the range is 2 dehumidification
116. ion of the arrow keys so that the UP and DOWN arrows scroll through thealphabet and all the other possible characters Once the character you want in that space appears use the RIGHT arrow to move to the next space when the field has more than one space Again use the UP and DOWN arrows to reach the character you want When all the characters in the field are as you want them press ENTER to save the entry The Rack label field is a constrained field It will only accept an upper case letter even though lower case letters appear as you scroll through the characters The No of suction groups field is an example of a constrained field It will only accept a System Manual RC IU B3 22 AKC 55 AKC 55 Selecting from list boxes Configuring Rack Info Dave single numeric character from 0 to 5 The reason is that 5 is the limit of the controller s capacity for suction groups on a single rack Note that in the case of this particular field entering a 0 zero will pop up a warning box letting you know that a zero response here will eliminate the suction groups already configured and will delete all information stored for the rack you will be asked to confirm the entry The next pair of illustrations shows how the controller uses list boxes Confiqure Back A Fack Info Back Info Packy lahel eee ees ee Bice ls label ee Serene See 2 stage system 7 2 Stage System 222225 Wo of suction groups 7 Wo of suction
117. ix on alarms High zone temp Low zone temp High humidity High supply temp HVAC fan down HVAC phase loss HVAC smoke HVAC fire See the Appendix on Board amp System Manual for each configured zone for each configured zone for each configured RH sensor for each fan speed for this unit s phase loss detector for this unit s smoke detector for this unit s fire detector Points RC IU B3 22 AKC 55 AKC 55 AHU Configuration AHU fan configuration System Manual Dave When you press the lt Setup gt button for an AHU unit the menu that appears looks like this o vl Fodz O2 50 45 PM Configure ETU 1 Air Damper Fan i Cooling i Ra Heating R Dehumidi fy E Board Points Only the fan and outside air coil configuration for AHUs is different from configura tion for RTUs that was spresented in the previous section There are two pages for AHU fan configuration 1lo fis 2z002 Configure Main AHU Variable VO Beach dom Times oo 2 ees 15 Fan control OFEN hours Continuous Algorithm Interval 710 Inverter nax resets Ss Fan control CLOSED hours Continuous Inverter reset delay 7300 sec Inverter proof delay 15 sec Post del To nnn oleae ee T Z win Monitor phase loss TYes Heat ramp up if LAT gt 75 0 F Which phase loss monitor Not configared Cool ramp up if LAT 54 5 F Shutdown phase loss TYes Dehm ramp up if LAT 44_ 5 F Shutdown on sm
118. l stages The target temperature that you want the first stage to maintain at the zone sensor 0 0 to 9 9 The range selected creates a dead band For example if the target is 72 and the range is 2 the stage will come on at 74 and will not be turned off until the temperature reaches 70 RC IU B3 22 AKC 55 Pre delay for stage Post delay for stage RTC configuration Devt 0 to 60 One setting per cooling stage The number of minutes that must elapse after target plus range is reached before the stage will come on 0 to 60 One setting per cooling stage The number of minutes that must elapse after target range is reached before the stage will be turned off There is one field for each stage The Danfoss RTC control board can function as a stand alone or as a node on the I O network of an AKC 55 system To begin configuration select RTC as the type of unit in the Configure HVAC menu A menu for the unit is then presented by the system Selecting Fan from the unit brings up the first fan configuration page shown on the left below the second page is shown at the right lo fis 2z002 Configure ETU Fost delar oe en eee ee Heat ramp up if LAT Cool ramp up if LAT Dehu ramp up if LAT Aux Heat ramp up if LAT Speed Inverter Heating Cooling Dehumidi fication dux Heat Speed control increment Speed control decrement Variable Qutput range Variable Fan control OFEN hours tContinuocus Fan c
119. laced by new questions Not all the fields discussed in the following explanation occur on the screen at one time 10 11 2002 i Configare Back A Condensers Condenser type 2 2 miir Cooled condenser Gypeo sss ees thir Cooled Mumber of fans t 6 Mumber af fans 7 6 Fan staging o 2 22232 Individual F n SG ace richs eee eee oe ee Individual Monitor stages TIndividual Monitor Stages 2 2 4 2 TIndividual Control sensor Pressure Control sensor 2 2 8 TSat Cond Temp Monitor dropleg temp Yes Monitor dropleg temp Yes Control method 1 TTarget Target control type TRhamp together Target control type TRhamp together Ramp stages if ambient lt O 0 F 1 0 Ramp stages if ambient lt 0 0 F 1 0 Min sat cond temp 7 60 0 F Max sat cond temp 2117 0 F Condenser Delta T TETS OZE FS hs Sc ae a a cae 7 150 0pei Heat reclaim offset T z0 00psi PG DN for more PG DN for more Aircooled condensers There are five configuration pages for aircooled condensers In the first page are the following fields refer to the illustration at right above Condenser type List box This section deals with condenser configu ration when the selection Air Cooled is made in this field None There is to be no condenser control by the AKC 55 Evaporative There are evaporative condensers that AKC 55 System Manual RC IU B3 22 4 25 Numbe
120. llaneous alarms on any point in the network Miscellaneous alarms are covered later in this section If a standard alarm is based on an on off input you can change the alarm action setting and the time setting The time setting can range from 1 255 seconds minutes or hours For an alarm based on a sensor input in addition to the action setting and time setting you can change the sensor level For the second alarm in the screen shown the sensor level could be anywhere in the range from 999 9 to 999 9 psi System Manual RC IU B3 22 4 39 Davee System alarms Configuration of system alarms which concern operation of the controller and network will be covered in a later section of this manual Board amp Points configuration To configure board amp points information for refrigeration return to the Configure Rack menu put the cursor on Board amp Points and press ENTER The screen is as shown below For AK2 module board amp point configuration refer also to the AK2 I O user manual Navigation Notice that at the bottom of each of the Board amp Points screens there is a row of icons Select one of these and you will be taken to the Board amp Point configuration page for a particular type of input or output From left to right the icons represent the following Digital outputs relay outputs Analog inputs sensor inputs Digital inputs on off inputs Analog outputs variable outputs Other controllers AKC 16x
121. lter runtime HVAC smoke HVAC fire for this unit s smoke detector for this unit s fire detector Sensor alarms can be set for any of the zone or humidity sensors for any relay output or for any digital input on off input These are configured in a manner unlike the Board amp Points entries for other devices Select RTC I O Points from the RTC configuration menu and the first screen Relay Outputs appears System Manual RC IU B3 22 4 77 Configuring RTC I O Relay Outputs Configuring RTC I O Sensor Inputs LO f23 2002 04 47 21 PH Configure ETU Z I Points Belay Outputs Point Name Fan Economizer Cool 1 Cool 2 Cool 3 Heat 1 Heat Heat 3 mo 1 om oe OF N e J On W Open W Open W Open W Open W Open W Open W Open W Open ia E Notice the set of icons across the bottom of the screen These will allow you to reach the other configuration screens and to initialize the RTC From left to right the icons represent Relay Outputs digital outputs Sensor Inputs analog inputs On off Inputs digital inputs Variable Outputs analog outputs and finally RTC Controls RTC Address and Init Here are the fields for Relay Outputs Point 1 to 8 The number of the point Name Label field contents depend on system configuration The name of the point The names are fixed since the hardware points on the RTC board are dedicated and can control only a single type of d
122. mber of zone sensors Controlling sensor AKC 55 System Manual RC IU B3 22 0 to 5 The number of zone sensors in the area of the store served by this HVAC unit List box Min Temp Control will be based on the lowest value of all temperature sensors in the unit s zone Max Temp Control will be based on the highest 4 55 RTU cooling configuration page 2 Desf value of all of the temperature sensors in the unit s zone Average Control will be based on the average of all the temperature sensors in the unit s zone Zone Temp 1 1 etc each zone temperature sensor will be available as a choice in the list Control will be based on the single selected temperature Sensor Num of cooling stages 0 to 6 The number of cooling stages in this HVAC unit Target temp for stage 0 0 to 99 9 A separate field for each of the stages in Range Pre delay for stage the unit 0 0 to 9 9 The range selected creates a dead band For example if the target is 72 and the range is 2 the stage will come on at 74 and will not be turned off until the temperature reaches 70 0 to 60 The number of minutes that must elapse after target plus range is reached before the stage will come on There is one field for each stage Post delay for stage 0 to 60 The number of minutes that must elapse after target range is reached before the stage will be turned off There is one field for each stage 10 16 2002
123. minute when the average is calculated again if the demand is still above the configured percentage of configured maximum demand level two will be shed and so on When demand has dropped to the start restoring at level the last level shed will be restored and then the others in descending order so that the last load restored will be the one which was shed first Restoration will continue as long as the load remains below the start shedding at percentage Configuring Alarms Whenever you enter configuration information to program a given AKCS5 system standard alarms are automatically created in the program These alarms are skel eton in nature This means that the alarms are now allocated in the program but you should inspect the alarm actions trip levels and time limits for each alarm and adjust them accordingly to meet your unique requirements We will discuss in detail how to configure alarms for Refrigeration HVAC and other points and sensors then we will see how these alarms are routed through the system First become authorized then from the main menu below left select Configura tion and then from the Configuration menu select Alarms You will reach the Alarm Configuration Menu shown below There are other ways to reach an alarm configu System Manual RC IU B3 22 AKC 55 Davee ration screen and as you become experienced with the system you will learn them For instance if you are c
124. mirn Allow float below targetiMo Nighe setbacks 2 222222 No Hight setback n n ap TYes Pressure differential 3 0psi Setback from time 712 00 AM Bet bee Co Cines n o ees 7T12 00 AM Sethack days 2522205 22 TSMTWEFA Setback holidays Tlz345678 PG DN for more PG DN for more The fields and their contents are as follows Suction I D 2 label fields the first is a list box A to Z the second is 9 characters not constrained This is the identifica tion you wish to assign to the suction group The entry will modify the screen title For example if you enter a B in the first field and Low Temp in the second the right portion of the screen title for the configuration and status screens for this group will read Low Temp AB PSIG target 50 0 to 50 0 The pressure that the controller will System Manual RC IU B3 22 4 7 PSIG Safety cutout Adaptive suction control Bd Pt Temp target Range Maximum pressure float Post defrost delay Allow float below target Night setback Setback from time Setback to time System Manual Desf maintain subject to capabilities of mechanical equip ment for this suction group 50 0 to 150 0 The gauge pressure at which the controller will stop the compressors in this suction group List box None No adaptive suction control AKC 55 Target pressure is adjusted based on discharge temperature of a single fixture AKC 16x Adaptive control o
125. n arrow keys to select the character for that space When the name appears as you want it press ENTER 0 to 99 The address set on the rotary address switches on the Smart Case Controller The installer should provide a list with the address for each fixture If such information is not available obtain the address by removing the waterproof rubber plugs over the address switches and reading the address Consult section 3 8 in chapter 3 of this manual for location of the switches Init button field Use in accordance with the following explanation of network re scan and initialization After the Smart Case Controllers have been configured and addressed you need to re scan the network so that they are recognized then initialize them You must perform the following steps iF From the Main Menu select Communications From the Communications Menu select I O Network From the I O Network Menu select Re scan Re scanning the network can take several minutes After the re secan return via the Main Menu to the AKC 16x Board amp Points Configuration Screen and Put the cursor on the Init field and press ENTER Notice that at the bottom of each of the Other Controllers screens there is a row of icons Select one of these and you will be taken to that type of other controller From left to right the icons represent the following AKC 16x Smart Case Controllers EKC fixture controllers and monitors Degree Master case con
126. n logic on other controllers Send The value of the point whether it is ON or OFF will be available on the host network for use by other controllers Be sure that each sending Board Point combination is unique throughout the system If the controller at address 01 is sending from its Bd Pt address 1 02 then no other controller can have an output at its Bd Pt address 1 02 sending Rec The value of the point is being received from another controller on the host network You must enter in the Bd Pt fields the Bd Pt address of the sending point First enter the address of the RO board and point to which the load is wired or in the case of a received broadcast point enter the board and point address of the sending point List box Voltage The point will be read as ON if it senses a voltage It will read OFF when it senses no voltage No Voltage The point will be read as ON if it senses no voltage It will read OFF when it senses voltage Latching The point will be read as ON when it first senses a momentary voltage It will continue to read on when the voltage is no longer present The point will read OFF after voltage is applied again This setting is often used for push button or other momentary contact sensing At the bottom of the body of the screen above the icons on the same line as PG DN for more is the SORT field By default sort mode is on and entries will be sorted by Bd Pt address if sort mode is turned
127. n of a question about a Key switch override The following screens show the second alarm configured and the key switch override AKC 55 System Manual RC IU B3 22 4 117 4 118 Configuring AKC 164 alarms answer has been changed to Yes Temp 259 6 F Ed Pt 05 1 Temp 259 6 F Ed Pt 05 1 Low Temperature Normal Low Temperature Normal If below 17 0 F for 30 min If below 17 0 F for 30 min High Temperature Normal High Temperature Wormal If above 38 0 F for 30 min If above 38 0 F for 30 min Delay after defrost for 60 Min Delay after defrost for 60 Min Eey switch override Yes Eey switch override Yes Select misc point Mot configured Select misc point Mot configured Delay after override for 39 min Delay after override for Ef min Note that the second alarm is a high temperature alarm and that it has an extra line in its configuration Delay after defrost If a delay other than zero is entered the high temperature alarm will be disallowed following termination of defrost provided defrost is monitored for the specified number of minutes The time unit can not changed The time is always in minutes The key switch override is made functional by having a physical switch usually operated by a key to prevent inadvertent operation or tampering and by having configured a miscellaneous point for the switch which is then wired to that point The logic written for the miscellaneous point will prevent alarms after the switch is operated f
128. n the Number of alarms field produces the screen at left below Case Type AKC 164 Temp 53_ 0 F Case Type AKC 164 Temp 53 0 F Beq ulatoar Status Normal Operation Requlator Status Normal Operation Number of alarms 1 Nubisabledalarms 1 lidisabled Before proceeding we must change the action level of the alarm from Disabled to one of the other levels In the example at right above we re changing the level to Normal AKC 55 System Manual RC IU B3 22 4 127 Miscellaneous Points Configuration 4 128 Starting Configuration Plan strategy first Miscellaneous relay outputs Davee Whenever you need to create a custom control strategy or define an on off input or sensor input not available through refrigeration HVAC or lighting configuration you will need to configure one or more miscellaneous points You might use a miscellaneous relay output point for an exhaust fan a dispenser that adds chemicals to an evaporative condenser an oven a produce fogger or any other device that can t or shouldn t be treated like an ordinary refrigeration HVAC or lighting point Miscellaneous on off inputs and sensor inputs can be used in defining the strategy for miscellaneous relay outputs They may be monitored for history and may be config ured strictly for that purpose or for alarms Alarms can be created for any miscella neous point For sensor inputs the AKCESS system allows custom conversion for non
129. n the following schedule page Num of schedules 0 to 8 The number of night setback schedules desired on the following schedule page s RTU Air Damper configuration For air damper configuration select Air Damper from the Configure RTU menu AKC 55 System Manual RC IU B3 22 4 63 RTU Alarms configuration RTU Board amp Points configuration lofis 2z002 O3 09 37 AM H Confimre ETU 1 Air Damper LIE PAM ie Yes Ambient temp lockout Yes Wo air damper below T a5 U EF F nges rr nies et S a ee OE Mum of schedules 7 Air Damper Ambient temp lockout No air damper below Range Num of schedules List box Yes No Whether or not there is a con trolled air damper List box Yes No Whether or not the air damper is to be locked out based on ambient temperatuare 0 0 to 100 0 The air damper will be locked out below this temperature minus range next line The air damper will be allowed to open again again when ambient temperature has risen to lockout plus range 0 0 to 9 9 The range selected creates a dead band around the lockout temperature The air damper will be locked out at lockout temperature minus range and once locked out will be allowed to open at ambient lockout plus range 0 to 8 The number of schedules that will be created below and on following pages if needed for air damper operation Alarms can be for any of the following in accordance with the Append
130. n this section will be similar to those already covered in the preceding sections on suction and compressor alarms We have configured condenser control including variable speed so as to describe almost all the alarm types After selecting Condensers from the rack alarms menu shown once again below left you will be presented with the first page of a list of alarms for rack C s con denser as at right below oe ee a re ee BConfiqure Back C Alarms Type Name Address A Suction A Compressors Disch Press E o6 2 Normal above 50 0 psi for Llomin High Pressure Hi Invert resets Fan Inv Reset C O3 1 Wormal above 3 Cyc in l5mnin Circuits Condenser E Other 5 Bitzer Inverter failure Fan Inv Bpass C 08 7 Wormal On for 15min Cond fan failure Cond Fan Claf o3 1 Normal Off for LoSmin Cond fan failure Cond Fan C344 5 Wormald Off for LSmin PG DM for more We have shown above only the first page of alarms Depending on the number of fans there may be additional condenser fan failure alarms on a second page High Pressure discharge pressure sensor This same alarm appears on the compressor alarms page and you may have set it up already It is an analog alarm set for a pressure from 999 9 to 999 9 psi or bar and a time limit of from 1 to 9999 seconds minutes or hours Hi Invert resets if variable speed is configured A cycle digital alarm with the trip level a number of cycles 0 9 in
131. nd answer Yes to the anti sweat control question a relay output is created which is then wired to a relay controlling the anti sweat heaters The name RC IU B3 22 AKC 55 Dave of the relay output will be Antisweat the name of the evaporator or circuit then the rack suction group and circuit number for example Produce AA3 ON when dewpoint above 0 0 to 100 0 The dewpoint above which anti sweat heaters will be on constantly Cycle above dewpoint 0 0 to 100 0 The dewpoint above which anti sweat heaters will be cycled Cycling will occur unless the dewpoint rises above the setpoint specified in the previous line Antisweat cycle time 2 to 999 The time interval on which anti sweat cycling is based Fan control List box Yes No Answer Yes if fans are to be controlled during and after defrost If you answer No fans will run continuously during both refrigeration and defrost Fans on during defrost List box Yes No The answer determines whether or not fans will run during defrost Stop fan on high temp List box Yes No Whether or not fans are to be stopped when temperature rises above a setpoint to be specified in the next line Fan stop temp 58 0 to 99 9 The temperature at which fans will be stopped Fan delay control List box Yes No A Yes answer will cause fans to remain off after defrost termination for a specified period of time or until a specified temperature is reached The time or tempe
132. ne field for each hour of the day from 00 to 23 This screen has two pages in order to list all the hours of the day About soft starts The effect of a soft start 1s to slowly add load to the generator after it starts If for instance soft start begin level is set to 6 when the generator starts only refrigeration loads and loads assigned level 7 through 11 will be on After one minute if the load is below the start shedding at percentage of maximum emergency load level 6 will be turned on After another minute the same decision will be made for level 5 and so on down to level one If at any time the load reaches the start shedding at percentage load shedding will begin again until the system reaches the start restoring at per centage Configuring demand limiting One utility meter per AKC 55 will allow configuration for demand limiting Configur ing demand limiting strategy is a two step process First you select the meter to be used for demand limiting and enter the parameters then select the loads to be shed for limiting demand and give each a priority In order to use demand limiting you must have a Danfoss approved utility meter with Echelon interface and if you are going to establish both normal and emergency load limits you must wire and configure an on off input for the automatic transfer switch In addition if the site has a coupling switch you must wire and configure an on off input for the coupling switch
133. o of dewpoint sensors aL Stages Name Type Cool Heat Unit 1 ETU Setups oO 0 Unit Zz AHU Setups oO E Unit 3 ETC hetup gt oO E Unit 4 aC4 Setups oO E Unit 5 CT 65 Setups oO E Unit 6 CT l 4 lt Setup gt oO T The fields in the HVAC Configuration Menu Evaporator Menu shown above on the right are as follows No of HVAC Units 0 to 40 The number of controlled HVAC units of all types in the store No of phase loss monitors 0 to 40 The number of phase loss monitors available for use by HVAC control A phase loss monitor can be used more than once No of humidity sensors O to 5 except that the combined number of humidity and dewpoint sensors cannot exceed 5 The number of humidity sensors used for control No of dewpoint sensors O to 5 except that the combined number of humidity and dewpoint sensors cannot exceed 5 The number of dewpoint sensors used for control Name Label field any 15 characters The name of the HVAC unit The field can be edited character by character put the cursor on the field press to change to edit mode then use the left and right arrow keys to move from space to space and the up and down arrow keys to select the character for that System Manual RC IU B3 22 AKC 55 Davee space When the name appears as you want it press ENTER Type for each individual listed HVAC unit List box AHU The unit is a built up system with an air han dling unit RTU The uni
134. o a schedule or schedules entered on the next page CO2 Ctrl The air damper will be operated based on the CO2 level in the HVAC unit s zone appears when any control method except economizer is used List box Yes No Whether or not the air damper is to be locked out based on ambient tempera ture appears when any control method except economizer is used and question above is answered Yes 0 0 to 100 0 The air damper will be locked out below this temperature List box appears only if economizer control is selected Humidity The air damper will be controlled based on humidity Enthalpy The air damper will be controlled based on calculated enthalpy List box Average Enthalpy or humidity control will be based on the average of two zone humidity sensors High Enthalpy or humidity control will be based on the highest of two humidity sensors Zone 1 etc each zone humidty sensor will be available as a choice in the list Enthalpy or humidity control will be based on the single selected humidity sensor 0 0 to 100 0 The air damper will be locked out shut if the outside temperature is above this setting 99 9 to 99 9 In enthalpy control when outside enthalpy is less than inside enthalpy by this differential the damper will be allowed to open List box Yes No Whether or not damper control is to be overriden based on CO2 content of inside air 0 to 2000 When CO2 override is enabled the CO2 level at which the dam
135. off points will be listed from then on in the order in which they were created The sorting occurs when you press EXIT and will be apparent the next time you enter the screen RC IU B3 22 AKC 55 A Variable OQutputs Name Ed Fft Pange Fan Inverter A g SORT On TETE Name Label field any 15 characters The name of the load being driven by the variable output The default names for the variable outputs automatically added during configuration of refrigeration are shown and will suffice in many applications They can be edited character by character put the cursor on the field press to enter edit mode then use the left and right arrow keys to move from space to space and the up and down arrow keys to select the character for that space When the name appears as you want it press ENTER Bd Pt Enter the Bd Pt address to which the load is wired Range List box two variable output ranges are available depending on the drive requirements 0 10 Volts 0 5 Volts SORT At the bottom of the body of the screen above the icons on the same line as PG DN for more is the SORT field By default sort mode is on and entries will be sorted by Bd Pt address if sort mode is turned off points will be listed from then on in the order in which they were created The sorting occurs when you press EXIT and will be apparent the next time you enter the screen Board amp Points Other controllers When you select
136. oke detect Yes Speed Min Max Shutdown on fire alarm Yes Inverter 50 04 100 0 Heating 50 04 LOO 0 No of return sensors 7 Cooling 60 0 100 0 Controlling sensor Return Air Z l TDehumidi fication 50 04 ee Us Wo of supply sensors TZ BPM at max speed 71000 Controlling fSensor TSupply Air 1 PG DM for more List box 1 Speed The unit has a single speed fan 2 Speed The unit has a two speed fan Variable VO Fan speed is variable with a drive controlled by an analog output board variable output board Variable VLT A variable speed fan is controlled by a Danfoss VLT adjustable frequency drive Fan type RC IU B3 22 4 65 Second page Fan control OPEN hours Desf List box Continuous The fan will run continuously during open hours Store open hours are defined in the Store Info screens On demand The fan will run on demand during open hours whenever heating cooling dehumidification or venting is called for Fan control CLOSED hours List box Post delay Heat ramp up if LAT gt Cool ramp up if LAT lt Dehm ramp up if LAT lt Speed Inverter Heating Cooling Dehumidification Rpm at max speed Reaction Time System Manual Continuous The fan will run continuously during hours when the store is not open Store open hours are defined in the Store Info screens On demand The fan will run on demand during hours when the store is not open w
137. olling sensor RTU cooling configuration El Configure ETU 1 Davee 0 to 5 The number return air temperature sensors List box Min Temp Control will be based on the lowest value of all of the return air temperature sensors Max Temp Control will be based on the highest value of all of the return air temperature sensors Average Control will be based on the average of all the return air sensors Return Air 1 1 etc each return air temperature sensor will be available as a choice in the list Control will be based on the single selected sensor 0 to 5 The number supply air temperature sensors List box Min Temp Control will be based on the lowest value of all of the supply air temperature sensors Max Temp Control will be based on the highest value of all of the supply air temperature sensors Average Control will be based on the average of all the supply air sensors Supply Air 1 1 etc each supply air temperature sensor will be available as a choice in the list Control will be based on the single selected sensor RTU cooling is configured after selecting cooling from the RTU configuration menu O9 02 44 AM Cooling i Mamber of zone sensors T Controlling Sensor TZzone Temp 1 1 Wum of cooling stagqes 7 Target temp for stage fil 74 0 F 2 74 0 F Pre delay for stage 1 l min 1 min Fost delay for stage 1 l mirn 2 1 min PR DN for more Nu
138. ombination of Units and Style is selected We will present them by style lt Clear gt This button clears the configuration for the selection of a new style Generic OI SI The style we used for the example just completed Clone OI SI Offers a means of cloning any physical board amp point to be used elsewhere in the system Schedule OI only Used to create an OI that will be on or off according to a schedule Cut In Out OI only Latch OI SI Once turned on by a true rule the point will remain on until a physical switch wired to an OJ is operated to turn it off Receive OI SD Minimum SI only The value will be the minimum of up to 5 SIs Maximum SI only The value will be the maximum of a number of up to 5 SIs Average SI only The value will be the average of up to 5 SIs Undo The undo button will undo the last change you made before you pressed ENTER Cancel The cancel button will clear all changes since you began editing the point Redo The redo button appears after any undo or cancel and reverses that action 4 140 system Manual RC IU B3 22 AKC 55
139. on demand during hours when the store is not open whenever heating cooling dehumidification or venting is called for 4 69 RTC fan page 2 Post delay Heat ramp up if LAT gt Cool ramp up if LAT lt Dehm ramp up if LAT lt Desf 0 to 60 The number of minutes the fan will run after the last stage of heating cooling dehumidification or venting is turned off 40 0 to 150 0 When heating is on fan speed will be ramped up when LAT leaving air temperature is greater than this setpoint 40 0 to 70 0 When cooling is on fan speed will be ramped up when LAT leaving air temperature is less than this setpoint 30 0 to 60 0 When dehumidification is on fan speed will be ramped up when LAT leaving air temperature is less than this setpoint Aux Heat ramp up if LAT gt 0 0 to 100 0 When heating is on fan speed will be Speed Inverter Heating Cooling Dehumidification Speed control increment Speed control decrement Variable Output range Reaction Time Algorithm Interval Inverter max resets System Manual ramped up when LAT leaving air temperature is greater than this setpoint Min 0 0 to 70 0 Max 50 0 to 130 0 The highest and lowest percent of rated maximum speed that the inverter will be allowed to drive the fan motor Min 10 0 to 100 0 Max 50 0 to 130 0 The highest and lowest percent of rated maximum speed that the inverter will be allowed to drive the fan motor
140. onfigured for demand limiting Level The priority for shedding under normal conditions Levels are shed in ascending order level 1 then level 2 and so on up to the highest level configured System Manual RC IU B3 22 4 107 Lighting demand limiting How Demand Limiting Works Chapter 4 5 The Configure Alarms menu 4 108 Desf limited by the number of steps allowed Levels above the number of steps configured will not be shed unless the meter configuration is changed Since there are only up to ten steps loads assigned level 11 will never be shed It is recommended that loads which are not to be shed are left at level 11 the default value Emergency level The priority for shedding when the emergency genera tor 1s running If a load is assigned level O zero for either normal or emergency conditions the load will never come on under those conditions For lighting zones the screen entries are the same except that each relay will have its own level so there is first a setup menu listing each zone then a page for each zone listing all the relays for that zone Utility demand is monitored every minute Every minute the most recent n minutes are averaged where n is the width of the configured window 15 20 or 30 minutes If the average reaches the configured start shedding at percentage of configured maximum demand step one all lighting zones and HVAC units assigned to level 1 will be turned off After one
141. onfigured tlerror line Result Value if Value off error ROL _ ee terror On On True On On Current Value 7 Error 7 On Current Value if Error On Notice the Undo and Cancel button fields in the heading of the screen Undo will erase your last step if you make a mistake Cancel will undo all changes leaving the point as it was before you started to edit it In the Style field select Generic Move to the data definitions area of the screen and put the cursor over the first name which by default says ROI Toggle to edit mode and open the list box and the screen will look as at left below Select SI F from the list box and press ENTER Now the screen looks like the one at right below System Manual RC IU B3 22 4 133 4 134 04 11 29 PH 11 0502 L1f1l2 2002 11 0502 CFG L1 f12 2002 CFG Configure Ca Ol OT HS Configure Ca Ol OTL Units OL ndo Cancel eric Style Generic Namel Data Definition Value e Wot configured Tlerror Definition Value Wot configured Tlerror True line Value Value SS f OTE tlerror Sa ae isda tt tlerror On True On Se Chedule Current Value f Errori 7 On Current Value f Errori 7 On Move right to the next field and select the compressor room temperature which we called Comp Rm Temp and assigned to Bd Pt 05 2 Now the screen will appear as below O2 37 45 PH L1fl2 2002 11 0502 CFG
142. onfiguring refrigeration alarm configuration for the particu lar rack you that you are working with will be available from the Configure Rack menu likewise HVAC and other configuration screens will present an alarm selec tion Using the method just described though you will be able to reach the entire world of alarms from one menu The Alarm Configuration menu looks like this ae 03 15 42 PH Refrigeration B Bouting HVAC Phone Numbers R Miscellaneous A IF Netvork Syst ein Printer E Service Hodem Configuring Refrigeration Alarms If you select Refrigeration from the Configure Alarms menu you will be presented with a screen listing each configured racks as at left below Select one of the racks and the alarms menu for that rack will appear as at right below O4 O07 2003 Suction P Compressors Circuits Condenser E Other 5 Bitzer We will select Rack C and another submenu will appear listing all the different parts of the system for which we can configure alarms Note the last item on the menu at right above Bitzer This appears only because when the compressor data was configured Bitzer was selected as the answer to the proofing type question Keep in mind that as we proceed through alarm configuration the items that present them AKC 55 System Manual RC IU B3 22 4 109 4 110 Desf selves depend upon the configuration for the mechanical devices Select Suction and
143. ontrol CLOSED hourstOn Demand TOE T5 TZ TO 10 Volts O9 42 26 TE E4 d4 65 Min Bo SO 50 50 AM 09 01 25 AM Fan te 10 17 2002 Confiqure Main AHU PR DN for more Fan type Fan control OPEN hours Yo Reaction Times se 2a 2 75 Algorithm Intervwal 710 Inverter nax resets 710 Inverter reset delay 300 sec o F Inverter proof delay 600 sec F F Monitor phase loss TYes o F Which phase loss monitor Not configured Max Shutdown phase loss TYes lOO O Shutdown on smoke detect Yes 0 lOO O Shutdown on fire alarm Yes 100 04 OF 5 0 No of return sensors 1 100 0 Controlling sensor TRerurn Air 2 1 Wo of supply sensors TZ Controlling sensor Tiupply Air Z 1 eal List box 1 Speed Single speed fan Variable VO Fan speed is variable with a drive controlled by the RTC board s analog output variable output List box Continuous The fan will run continuously during open hours Store open hours are defined in the Store Info screens On demand The fan will run on demand during open hours whenever heating cooling dehumidification or venting is called for Fan control CLOSED hours List box AKC 55 System Manual RC IU B3 22 Continuous The fan will run continuously during hours when the store is not open Store open hours are defined in the Store Info screens On demand The fan will run
144. or the Sensor Type field during configuration of the sensor input that uses the conversion Miscellaneous calculations are used to create custom logic A calculated point created here can be used anywhere a board amp point address can be referenced The calcu lated points processor is a true boolean processor with a full complement of argument types and operators Examples follow this section Right now let s investigate the screens one by one as far as we can in general If there are no calculations configured when you select Calculations from the Config ure Miscellaneous menu the seemingly unassuming screen below at left appears when one or more calculated points have been configured the screen is a list screen as at right below Point Description Value Status Point Description Value Status Ca OZ SI ppm 1 O0ppm Error New Cale Ca 03 New Calc Every configured calculated point will be listed The fields are as follows Point Ca 01 to Ca 96 The name of the calculated point Description The type of point OI or SI If an SI the description will usually include the units Value The current value or state of the point This will be on or off for OI points and a value for SI points Status Online Offline Error New Calc At the bottom left of the screen is a field with the number of the next unconfigured calculated point To configure a new point select this field and press ENTER When you press EN
145. or the time specified as Delay after override Such an override might be used for case cleaning extensive re stocking or service For circuits controlled by AKC 164 Smart Case Controllers there are in addition to the high and low temperature alarms discussed in the preceding section a number of alarms embedded in the case controller that are received and processed by the AKC 55 The alarms are enabled and disabled through the AKC 55 and if enabled will be dialed out by the AKC 55 when they occur The alarm configuration screen for an AKC 164 circuit looks like this System Manual RC IU B3 22 AKC 55 AKC 55 Alarms for EKC DCU Degree Master Case Type AKC 164 Temp O 0 F Low case temp High case temp Disabled Low Superheat Disabled Defrost exceeded Disabled Fan start timeout Disabled Drip pan clogged Disabled Box door open Disabled Power failure Disabled Hardware failure Disabled Sensor fail alarms Disabled Eey switch override Mo Send to controlle The embedded alarms and their meanings are as follows Low Superheat Occurs when the difference between the inlet liquid in and outlet gas out tempera tures sensors is too low This could be caused by the evaporator being overfilled with liquid refrigerant In response to this condition the AKC 164 will tend to close the AKV electronic expansion valve Defrost exceeded Occurs if an evaporator is configured to terminate defrost at a set temperature if the
146. override switch configured On Off A two position override switch allows the lights to be switched on or off On Auto RC IU B3 22 AKC 55 Configuring AKC 55 subcooling circuits AKC 55 System Manual Dave Off Auto Choices are OFF or automatic operation On Auto Off All three choices are available with a three position switch being installed Dewpoint for anti sweat control will be calculated using the values of relative humidity and temperature sensors 11 53 20 AM 11 50 25 AP l o tet wit fir i 7 om Back Configuration Rack Configuratior Case Lights Override Type of override switch MS Revert to auto with timer Yes Timeout after 60 Case Lights Override Type of override switch Minutes Name Beast EBd Peo On Case Lights OW Wo 00 0 Toltage When subcooler valves are controlled directly by the AKC 55 that is when an AKC 165 Subcooling Controller is not used configuration begins by selecting AKC 55 SUBC in the Type column for the circuit on the Evaporator Menu then moving the cursor to the word Setup for that evaporator and pressing ENTER A screen like the one at left below will appear The same screen with all its fields revealed appears as at right 0sra rz003 07 55 PH O85 30 2003 Wumber af walves 1 Mumber of walwes dz Mumber of staqes TS Stage l Stage l Cutin setpoint 750 0 F Cutin setpoint 7120_ 0 F
147. p the exhaust fan from cycling too rapidly when the temperature is hovering near the setpoint we will set a 10 minute post delay The finished screen looks like this L1fl2 2002 Confiqure Mis eS Boe Be pm I CFE 10 48 25 AM Belay Outputs Wane Ed Ft Beast On Control Input Minimum OFF Pre delay Minimum ON Post delay Compr Rm EXFAM d4 No 7 N Open Ca Ol OL T Minutes Minutes Minutes minutes Completing that working example hopefully increased your comfort with calculated points Now we will go through each of the fields and functions in order AKC 55 System Manual RC IU B3 22 4 139 Desf The heading fields Here is the heading area of the calculated points screen Units OI Unda Style Generic Units We ve discussed the Units field and its contents earlier The contents specify the type of point being created whether an OI or SI The 13 kinds of SI are differentiated by the units in which their values are presented There is one special selection you can make from the Units list box lt Delete gt Use this button in the style box to delete the calculated point Higher numbered points will remain in place The deleted point will be the next new point made available for configuration Style To understand the various styles of Calculated SI and OI points we will give use the initial framework screens that display when each c
148. per is allowed open to bring in fresh air List box Variable Out The damper is modulated by the RTCs analog output variable output Relay Output The damper is opened by a digital output relay output 0 0 to 100 0 When a variable out is controlling the minimum percentage of damper opening allowed 0 0 to 100 0 When a variable out is controlling the maximum percentage of damper opening allowed RC IU B3 22 AKC 55 AKC 55 RTC schedules RTC alarm configuration RTC I O Points configuration Variable Output range Reaction Time Algorithm Interval Davee List box When a variable out is controlling the minimum percentage of damper opening allowed 0 5 Volts Sets the RTC board s analog output for an output over the range 0 5 volts 0 10 Volts Sets the RTC board s analog output for an output over the range 0 10 volts 1 to 99 This setting together with the next deter mines the sensitivity of variable output control It should be adjusted only by a Danfoss trained techni cian 1 to 15 This setting together with the previous one determines the sensitivity of variable output control It should be adjusted only by a Danfoss trained techni cian The RTC schedules screen s allow entry of schedules for operation of the rooftop Alarms can be for any of the following in accordance with the Appendix on alarms Cooling failure Heating failure Sensor discard Power failure Filter elapsed Fi
149. pressure either F or C for temperature and either or fc footcandles for light level 4 2 system Manual RC IU B3 22 AKC 55 Chapter 4 1 Starting with a Partially Configured AKC 55 AKC 55 System Manual Davee Configuring Refrigeration There are two routes you may need to navigate to begin configuring refrigeration One begins by selecting Refrigeration from the Main menu and the other by selecting Configuration If the AKC 55 you are working with was supplied with a rack the controller may have been partially configured by the rack manufacturer In that case when you select Refrigeration from the Main Menu the AKC 55 will display the Refrigeration Menu left It lists the rack or racks that are partly configured If you want to change or add to the configuration of one of these racks move the cursor to the rack name and press ENTER The Rack menu right will appear In this example only one rack has been previously configured 11 24 30 AM Lemhetrigeration Men A Heru Rack Suction Current Target A Suction Groups my Alarms H Suction AA psi psi E Evaporators Rack Overview Condenser E Fack Service ul Ea Heat Reclaim i Configure Back Receiver ie lo fo1l szooF Confiqure Back amp Rack Info Receiver Suction Info Heat Reclaim Compressors my Alarms El Cm Pa Evaporators E Board Points H Condensers RC IU B3 22 4 3 Starting with a Desf
150. r After the Locate procedure Select Init and press ENTER or click with your mouse The initialization procedure during which configuration data is copied from the AKC 55 to the Degree Master will take about 10 15 seconds Wink All Degree Master is a toggle first ENTER turns on second turns OFF that will cause all the Degree Masters on the network to flash their node numbers repeat edly If a unit does not wink its number test its function with the handheld remote control in accordance with the Degree Master manual If the unit is functioning to control the fixture troubleshoot its network connection and addressing To configure Board amp Points for Danfoss VLT and AKD variable frequency drives select the variable speed drive icon fourth from the left on any Configure Board amp Points Other Controllers screen and press ENTER The screen looks like this though you see only one here all configured VLT drives will be listed System Manual RC IU B3 22 AKC 55 10 10 2002 YLT Comp AAlL gt Locatest 0 The fields and contents are Name Label field any 15 characters The name of the compressor being controlled by the VLT The default names for the system s VLTs that were automatically added during configuration of refrigeration are shown and will suffice in many applications They can be edited character by character put the cursor on the field press to change to edit mode then use the left and right arrow k
151. r of fans Fan staging Monitor stages Control sensor Monitor dropleg temp Control method 4 26 System Manual Desf are controlled by the AKC 55 Discussed in the next section of the manual Air Cooled The AKC 55 is controlling air cooled condensers The remainder of this section this screen and the next four pertains to this selection 0 to 12 The number of condenser fans List box Individual Fans will be turned on and off individually to create a number of stages equal to the number of fans Paired Fans will be turned on and off in pairs to create a number of stages equal to half the number of fans List box Individual Fans will be monitored individually with a digital input on off input created for each fan Paired Fans will be monitored in pairs with a digital input created for each pair List box Pressure A pressure sensor will be used to control the condenser fans An analog input sensor input will be created for the sensor Dropleg Temp A temperature sensor placed on the dropleg will be used to control the condenser fans An analog input sensor input will be created for the sensor Sat Cond Temp Control will be based on saturated condensing temperature as computed from a pressure sensor on the discharge header or drop leg An analog input sensor input was automatically created for the suction group List box Yes No Whether the drop leg temperature will be monitored A Yes ans
152. r variable analog outputs reached with the fourth icon from left The names appear if the points are configured OY S1 2007 11 00 04 AM Confiqure ETU Board Points a Variable OQutputs Points Mame Range 1 Fan Speed v 0 10 Volt Z COf Controlled va Ang Pt lor 2 The number of the point Name Label field not changeable The name of the point The names are fixed since the hardware points on the RTC board are dedicated and can serve only for the listed outputs The names always appear as in the illustration above whether the input is used or not Range List field one for each point 0 10 Volt The output will supply 0 10 Volts 0 5 Volts The output will supply The input is config ured It should be wired if this RTC Address and Init Select the right most icon on the Configure RTC I O points screen and you will see this screen System Manual RC IU B3 22 4 81 ClimaTECH configuration 04 10 03 PH Configure ETU I O Points PIC Address and Init Name ETU fF Address 0 Init z Init HE ee In the field labeled address give the RTC an address from 0 to 99 that is unique among all the RTC nodes on the I O network for this AKC 55 Remember that there can be only 40 HVAC units per AKC 55 Any time an RTC node is changed or added the network must be re scanned and re initialized After addressing and re scanning put the cursor on the Init field and press ENTER The initialization process will take
153. rature is determined by the next two questions Start fan on time List box Yes No The answer determines whether or not fan delay ends after a specified time Delay time 0 to 20 The number of minutes before fans start after defrost terminates Fan starting temp 58 0 to 99 9 The temperature at which fans will be started after fan delay if fans are not started on time Monitor door position List box Yes No Whether or not an alalog sensor input is created to monitor the position of the door This sensor reads in percent and will be seen on the status screen for the circuit An alarm can be based on it AKC 55 System Manual RC IU B3 22 4 21 Configuring Defrost E Configure Back a Loysoryzoo2z Desf Defrost configuration begins on the next setup page for an evaporator circuit 01 02 39 PH Low Temp AA E Evaporators Wo of defrosts per day lz Defrost duration _ _ 7 30 min Defrost start time 1 4 7 le 00 AM 2 lz l 00 AM 5 le l 00 AM 5 le 10 12 00 AM 11 12 OO AM OO AM OO AM OO AM OO AM 5 lz OO AM 6 le OG AM 9 lz OO AM 12 12 Allow defrost skip TYes Min time between defrost Override on dewpoint Yes Don t skip when DP above Del Tene control oee TYes Alt target 35 0 F The fields are as follows No of defrosts per day Defrost duration Defrost start time Allow defrost skip Min time between defrost Override on dewpoint
154. rcuit Ase LCU gt Setup Circuit AA ARC 55 gt Setup Circuit AAS ARC 55 gt Setup Circuit AAG ARC 55 gt Setup Circuit AAlo ARC 55 gt Setup PG DN for more mci There are six kinds of evaporator control shown In this manual we will discuss the configuration of AKC 55 circuits and AKC 16x circuits For the other types of evaporators please see the manuals on the individual controllers In the future when a Danfoss Case Control manual is created we will remove the AKC 16x material from this manual First the changeable fields in the Evaporator Menu shown above on the right are as follows Number of circuits Dewpoint method 1 to 40 The number of circuits in the suction group List box Dewpoint A dewpoint sensor or sensors will be used for anti sweat control Calc Dewpoint Dewpoint for anti sweat control will be calculated using the values of relative humidity and temperature sensors Dewpoint sensor to use If Dewpoint has been selected List box How anti RC IU B3 22 4 15 Case lights button Humidity sensor to use Type Desf sweat control dewpoint will be determined if a dewpoint sensor is used Min Dewpoint The lowest reading of a number of dewpoint sensors will be used Max Dewpoint The highest reading of a number of dewpoint sensors will be used Average The average of a number of dewpoint sensors will be used Dewpoint 1 A single dewpoint sensor will be used for cont
155. rcuits Suction Pres 44 00 0 Condenser Suction Temp A 00 0 EF Other Disabled High Temperature Suction Temp AA 00 0 Normal above 50 0 F for 15min PG DM for more The set of alarms that are created automatically as you proceed with configuration of a rack is shown in the menu by selecting one of the menu items in this case Suc tion the alarms for that part of the rack are presented The first page of suction alarms is shown at right above One of the list boxes has been opened to reveal its options For each alarm the first line contains an alarm type the name of the point the alarm is based on and the point s address The second line contains the alarm action setting Critical Normal Log only or Disabled the trip level setting Gif based on an analog sensor input and the time setting If the action is set to Disabled the level and time settings will not appear but are retained in memory as is the case with all System Manual RC IU B3 22 AKC 55 AKC 55 Alarm Levels What You Can Change in a Standard Alarm Devt in the example screen except the last alarm High Temperatuare Suction Temp AA There are five times when alarms are not generated for refrigeration temperatures 1 during keyswitch overrides 2 during the delay after override 3 during defrost 4 during the delay after defrost and 5 when alarms have been suspended The two delay periods are defined in the refrigeration configura
156. rd amp Points Other Controllers screen select the Degree Master Icon and press ENTER This screen appears Our example shows only one circuit but every configured Degree Master circuit will be listed Deg Master Controls Wink All Degree Master Nane Addr Circuit AAs O Locate Init Upload Heo E amp The fields and contents are Name Label field any 15 characters The name of the evaporator being controlled by the Degree Master The default names for the Degree Master circuits automati cally added during configuration of refrigeration are shown and will suffice in many applications They can be edited character by character put the cursor on the field press to change to edit mode then use the left and right arrow keys to move from space to space and the up and down arrow keys to select the character for that space When the name appears as you want it press ENTER Address 0 to 99 Enter an address from 1 to 99 that is unique System Manual RC IU B3 22 4 49 Locate Procedure Activating the service pin from the display Initialization Wink VLT and AKD drives Board amp Points Desf among the Degree Masters in the system Locate Locate button field See the explanation Locate and Init below Init Init button field See the explanation Locate and Init below When a new Degree Master is added to the AKC 55 system or when there has been a service replacement you must use the
157. re indoors Outside A single photocell is located outdoors None This point has no photocell List box Min The point has no photocell Max The photocell s for the point are inside Average The photocell s for the point are outside Photocell ID 1 etc Each individual photocell is listed List box Schd and photo For this point to be on two condi tions have to be satisfied 1 the schedule must be true and 2 the photocell must be above trip level Once those two conditions are satisfied the pre delay timer will start Schd or photo For this point to be on either of two conditions must be satisfied 1 the schedule must be true or 2 the photocell must be above trip level Once one of those two conditions is satisfied the pre delay timer will start List box Yes No Whether or not a schedule will back up in case the photocell fails Time of day field The time at which the pre delay RC IU B3 22 4 99 4 100 Lighting configuration page 2 Time off Photocell range Trip Level Always keep 1 relay on Auto rotate selection Desf timer for outside lights will start without the photocell having tripped Time of day field The time at which the post delay timer for the outside lights will start without the photo cell rising above trip level O to100 The number of percent from night to day O tol00 The level at which the photocell condition will be true and act to turn the
158. reated in the calculated points screen The state of the OI will depend on the evaluation at any time of the logical statements that we are going to write The other points the RO and the two SIs will be created as miscellaneous points Creating the miscellaneous points Sensor inputs Now we will create the first of the sensor inputs we will need that for the leak detector Exit to the Configure Miscellaneous menu and select Sensor Inputs The configuration is straightforward for both of the sensors we need 4 132 system Manual RC IU B3 22 AKC 55 AKC 55 Writing the custom Strategy Data definitions Name 11 12 2002 11 0103 CFG I1l 43 37 Am l1lflz 2002 11 0103 CFG 11 45 05 AM SR ensor Inputs Hajt einki ensor Inputs Wo of sensor inputs 1 Wo of sensor inputs Name Beast Bd Peo Type Name Beast Bd Fo Type Compr Bm Leak Wo Os L Leak Compr Bm Leak Mo HSS Leak Compr Pu Temp No 05 2 Heo Heo Navigate back to the Configure Ca 01 or whatever number screen now which we will repeat on the left as it looks when it first comes up After selecting OI as the type the screen looks as shown at right The type cannot be changed from OI unless Ca 01 is removed as the controlling point for the miscellaneous RO we created 11 07 2002 01 13 45 PM 11 08 2002 11 05 08 AM a Ol O13 ES Configure Ca Ol OT Units Style Generic ition Value Nane Value configured tlerror E01 Wot c
159. rlink lighting zones configuration is the same as for the AKC 55 zones just discussed except that the question Number of control relays is replaced with Number of control points These panels also require board and point setup and initialization see below Configuration of Powerlink lighting zones configuration is the same as for the AKC 55 zones just discussed except that the question Number of control relays is replaced with Number of control points These panels also require board and point setup and initialization see below Starting at the lighting configuration menu select Board amp Points press ENTER and when the Board amp Points Relay Outputs configuration screen appears select the rightmost icon at the bottom of the screen and press ENTER A menu will appear like the one in the left illustration below RC IU B3 22 4 101 Locate procedure Chapter 4 4 4 102 Installation Configuration 11 06 2002 01 45 13 PH Bae board amp Points Bae Board amp Points Light Panel Cutler Hammer 1 Powerlink 1 Locate Setup oO Breaker 1 50 Sales Cutler Hammer l Setup 1 Breaker 2 50 Sales Breaker 3 50 Sales Breaker f4 50 Sales Breaker 5 Breaker 6 Wot Config Breaker 7 Wot Config Breaker 85 Wot Config Breaker 9 Wot Config Breaker 10 Wot Config Breaker 11 Not Config Breaker 12 Not Config Breaker 13 Mot Config i i lh e Breaker 14 Mot Config PG DM for more Place the cursor on th
160. rol others Other dewpoint sensors if they exist will be listed also If Calc Dewpoint has been selected List box How dewpoint will be determined if a humidity sensor is used Min Humidity The lowest reading of a number of humidity sensors will be used Max Humidity The highest reading of a number of humidity sensors will be used Average The average of a number of humidity sensors will be used Inside RH 1 A single humidity sensor will be used for control others Other humidity sensors if they exist will be listed also List box for each individual evaporator the type of evaporator control AKC 55 SUBC A subcooler controlled as an AKC 55 circuit AKC 55 The circuit is controlled by the AKC 55 s algorithms AKC 16x Control is at the fixture by AKC 161 or AKC 164 Smart Case Controllers EKC Control is at the fixture by EKC 201 control lers Deg Master Control is at the fixture by Hill PHOE NIX Degree Master controllers DCU Control is at the fixture by DCU case control lers In the lower left corner of the screen body is a button CASE LIGHTS Selecting this button and pressing ENTER will open the configuration screen for a case lights override switch The screen at left below appears with the list box closed when the CASE LIGHTS button is activated The fields on the screen and their meanings are as follows Type of override switch System Manual List box Disabled There is no
161. rom 0 to 100 minutes and proof has not been sensed Fire The ClimaTECH controller has a digital input to detect the HVAC system s fire alarm This alarm occurs when the fire input has been ON for the specified alarm delay of from 0 to 100 minutes HVAC fire if an HVAC fire stat is configured A digital alarm from the AKC 55 that can be enabled to occur when a fire stat monitor reads on for a specified time period 0 9999 seconds minutes or hours This alarm is separate and distinct from the preceding one in that it does not originate from the ClimaTECH controller It is presented on this screen because it pertains to the system whose alarms are being configured Returning now to the main Alarm Configuration Menu the next item after HVAC is Miscellaneous Using the the miscellaneous alarms screens you can create custom System Manual RC IU B3 22 4 125 4 126 Example Misc alarm Desf alarms to add to those automatically created as you configure the controller This is a powerful feature of the AKC 55 with great flexibility Every relay output and sensor will be listed in the miscellaneous alarm screens Alarms can be configured here to be active on only specified days too You can also create multiple alarms for the same relay or sensor with different time delays and action levels After you select Miscellaneous from the main Alarm Configuration Menu you will see the first page of the first of five miscellaneous alarm list
162. s menu shown once again at left you will be presented with a list of configured evaporator circuits which will vary greatly de pending on what circuits you have configured A list of typical circuits is shown at right 4 116 system Manual RC IU B3 22 AKC 55 O4 09 7003 Oo4 o09 2003 11 40 15 AM Confiqure Back C Alarms Suction SD Meat C SD Meat C lh SD Meat C le Compressors Icream Ex C 2 I Meat C 3a H Heat C 3b A Condenser Other Bitzer Alarms for AKC 55 circuits Select the first circuit on the list above It turns out to be typical for circuits controlled directly by the AKC 55 Initially the alarm screen looks as at left below oO4 foo 7003 11 26 14 4M Temp 29 6 F Bd Pr o5 1 Temp 29 6 F Ed Ft 05 1 Low Temperature Low Temperature If below 50 0 F for 15 min High Temperature Disabled High Temperature Disabled Eey switch override Mo Notice that the name of the circuit appears in the heading of the screen Then there is an area where the current sensor temperature appears along with the number of the I O board and point to which the case temperature sensor is wired At first you see two alarms both disabled In the screen at right above we have enabled one of the alarms by changing its level to Normal We have changed the default settings 50 and 30 min to more reasonable settings for the fixture Enabling the alarm also caused the appearance further down the scree
163. screens It lists all the relay outputs in the system The Alarm Configuration Menu and the Misc Alarms Relay Output list screen are shown below O1l 44 52 PH ni ES Alarm Configuration 2 Bd Pr Name Value H ilarms Refrigeration B Routing Die Compressor D 1 oft z iai 0l 2 Unloader D la off 0 Ul 3 Unloader D 1b off T HVAC Phone Mumbers O1 4 Comp Reset D 1 off o 0l 5 Compressar D Z oft E O1 6 Unloader D fa oft E 25 BS IF Network o1 7 Unloader D Zh off T O1 s Comp Reset D z off E z 1 Compressar D 3 oft E System Printer 02 2 Unloader D 3a off a 0Z 3 Unloader D 3b oft T Ooz 4 Comp Reset D 3 oft 0 Service Hodem SORT On PG DN for more ale JB E Before we go on to discuss configuring miscellaneous alarms for relay outputs observe the icons at the bottom of the screen above right The first icon represents relay outputs the current screen The others from left to right are in reverse video unselected and represent analog inputs digital inputs analog outputs and casc controllers respectively Selecting any one of these icons will take you directly to that area of configuration For each point selected whether an output or input up to 3 different alarm satements can be used and each can be active on a time schedule As an example a meat prep room may be occupied only during certain hours therefore different alarm levels might be useful An example follows for such a prep room controlled by
164. se one of two pages depending on whether economizer control is used lo fis 2z002 E Configure ETU Air banne r a aeae Control method o rie Ambient temp lockout Wo air damper helow Use COZ override Target COZ Amount Damper Controlled by Air Damper Control method System Manual Air Damper Yes Yes 35 0 F Yes L000 ppm Belay Output Air Bc ui eae ee cee eed peer oa T Control method a an 7 Control economizer on _ Humidity sensor to use 7 Enthalpy differential Enthalpy Average 0 0 BTU 1h Use COZ override 2223 52 Yes Target COZ Amount 2 7 1000 ppm Tamper Controlled by Variable Out Min Damper Position vo Oe ee Max Damper Potition 7 100 0 Variable Qutput range 7 0 10 Volts Peach won Tine soe 22 aie 7 B Algorithm Interval 7 10 C List box Yes No Whether or not there is a con trolled air damper List box RC IU B3 22 4 75 Ambient temp lockout No air damper below Control economizer on Humidity sensor to use Lockout if outside above Enthalpy differential Use CO2 override Target CO2 amount Damper Controlled by Min Damper Position Max Damper Position System Manual Desf Fan ON The damper will be open whenever the fan is On Economizer Economizer control will be used based on either humidity or enthalpy Schedule The air damper will be operated according t
165. sor At the bottom of the body of the screen above the icons on the same line as PG DN for more is the SORT field By default sort mode is on and entries will be sorted by Bd Pt address if sort mode is turned off points will be listed from then on in the order in which they were created The sorting occurs when you press EXIT and will be apparent the next time you enter the screen Mee R ae Board Points i On Off Inputs Name Beast EBEd Peo On Phase Loss A Mo oo o Yoltaqe Fan Inv Proof A No 00 0 Toltage Fan Inv Fault A Mo oo o Yoltaqe Cond Fan Al No g VYoltaqe Cond Fan Az No g Cond Fan A No g Cond Fan Ad No g Cond Fan AS No g SORT On PG DM for more HERE f Label field any 15 characters The name of the load sensed by the digital input on off input The default names for the inputs automatically added during configuration of refrigeration are shown and will suffice in many applications They can be edited character by character put the cursor on the field RC IU B3 22 4 43 Beast Bd Pt SORT Board amp Points Variable outputs Analog outputs 4 44 System Manual Desf press to change to edit mode then use the left and right arrow keys to move from space to space and the up and down arrow keys to select the character for that space When the name appears as you want it press ENTER List box No The value of the point will not be broadcast to be used i
166. stage Post delay for stage Cooling low limit RTU dehumidification configuration page 2 4 62 System Manual Desf Humidity Dehumidification will be controlled based on a specified humidity target A humidity sensor is required Calc Dewpt Dehumidification will be controlled based on a specified dewpoint target which will be compared with a dewpoint calculated from zone temperatuare and humidity Both zone temperature and humidity sensors must be installed List box if controlled by dewpoint or humidity only and if there are multiple sensors Min Humidity or Min dewpoint Control will be based on the lowest reading of a group of sensors Max Humidity or Max dewpoint Control will be based on the highest reading of a group of sensors Average Control will be based on the average of a group of sensors Dewpoint 1 1 etc Any single dewpoint sensor can be selected Humidity 1 1 etc Any single humidity sensor can be selected List box similar to the preceding appears only when using Calc Dewpt as the control strategy List box similar to the preceding appears only when using Calc Dewpt as the control strategy 0 0 to 100 0 The control target in percent relative humidity or dewpoint degrees depending on the strat egy chosen above 0 1 to 15 0 The differential forms a deadband above and below the target in which no control actions are taken Dehumidification will be turned on at target plus differential
167. sult is in that statement s result column The screen with the first line complete in the rules area looks like this 4 136 system Manual RC IU B3 22 AKC 55 L1fl2 2002 11 0502 CFG 04 09 10 PH Hi Configure Ca Ol OT Units 0I ndo Cancel Style Generic Pata Definition SIl pos z2 Compr Bm Temp 0 0 F Mum 30 0 F 20 0 F Sls f E 1 Compr Fm Leak 0 Oppm Mumi 100 0 600 0 false On Current Value On Now go to the result column on the line with the word True open the list box select lt Insert gt and press ENTER to add a line for the second statement then add the condition for the leak detector When you are finished the screen will look like this L1f1l2 2002 11 0502 CFG 04 21 12 PH ES Configure Ca Ol OT Units DI ndo Cancel Style Generic Name Data Definition SIl gos z Compr Pm Temp 0 0 F Manz 30 0 F 30 0 F SIS gos l Compr Rm Leak 0 Oppm Mami 500 0 amp oo0 0 lesult Value SIL WNumez f On false SIS umg f On false True off off Current Value off The last statement effectively reads IF True Off This may seem strange at first but remember that the controller is evaluating line by line There must be one true state ment called the else statement by logicians So the last line always states True with the result set to whatever state we want when none of the other conditions is true To summarize
168. sure On Off A digital input on off input is used to monitor an oil pressure switch Copeland A Copeland oil monitor is used Lockout comp on oil fail List box Yes No Whether or not compressors will be locked out when an oil failure is detected Low oil pressure diff 0 to 50 The oil pressure differential when an analog sensor input is used that will cause compressor shutdown Oil pressure delay 0 to 255 When an analog sensor is used the number of seconds after oil failure is detected before compres sors are reset No of oil reset attempts 0 to 10 After oil failure is detected the number of reset attempts before compressors are locked out Min time between resets O to 60 After a reset whether successful or not the System Manual RC IU B3 22 AKC 55 Monitor comp disch temp Stop comps on high temp Cutout Cutin Stop comps on low temp Lockout below Disch pressure safety Cutout Cutin Unload before cutout Neutral Zone control Davee number of minutes that must elapse before another reset attempt List box Yes No Whether or not compressor discharge temperature is monitored List box Yes No Whether or not compressors are to be shut down on high discharge temperature 0 0 to 300 0 The discharge temperature at which compressors are to be cut out 0 0 to 300 0 After a cut out on high discharge temperature the discharge temperature at which compressors are to be cut in List box
169. t is a packaged rooftop unit RTC The unit is controlled by a Danfoss RTC board SC4 The unit is a Seasons 4 Smart Coil packaged rooftop system CT 65 The unit is controlled by a Danfoss or ECI ClimaTECH 65 controller CT 1024 The unit is controlled by a Danfoss or ECI ClimaTECH 1024 controller lt Setup gt Button field Used to enter the configuration screens for the individual HVAC units RTU Configuration When you press the lt Setup gt button for an RTU unit the menu that appears looks like this Ei Configure ETU 1 Air Damper i Cooling Alarms Ra Heating E Board Points R Dehumidi fy From this menu you can enter the configuration screens for each of the components of the HVAC unit RTU fan configuration There are two pages for fan configuration System Manual RC IU B3 22 4 53 Fan configuration page 2 Fan control Default fan Fan control Default fan IP arte hee ea oy eee ee T Z win Fan type Fan control OPEN hours PR DN for more Configure ETU Monitor phase loss TYes Which phase loss monitor Phase Loss 1 Shutdown phase loss TYes Shut domn on smoke detecttYes Shut dorman on fire alarm Yes Wo of return sensors TZ Controlling sensor 25 THeturn Air 1 1 Wo of supply sensors 7 Controlling Sensor TSupply Air 1 1 List box 1 Speed The unit has a single speed fan 2 Speed The unit has a two speed fan List box Continuous The fan
170. tages Night setback Night setback offset Override switch Override duration Num of schedules Davee stage will come on at 66 and will not be turned off until the temperature reaches 70 0 to 4 The number of auxiliary heat stages in the SC4 unit 0 0 to 100 0 The desired temperature at the control ling sensor when auxiliary heat is being used 0 0 to 9 9 The range selected creates a dead band For example if the target is 68 and the range is 2 the stage will come on at 66 and will not be turned off until the temperature reaches 70 List box Yes No Whether or not there is to be a lockout based on low ambient temperature 0 0 to 100 0 The ambient temperature above which heating will be locked out 0 0 to 9 9 The range for the lockout Heating will be locked out at lockout plus range and when locked out will be allowed on at lockout minus range 0 to 20 The number of minutes that a stage must run before being turned off 0 to 20 The number of minutes that must elapse after a stage is turned on before the next stage can be turned on List box Yes No Whether or not the heating setpoints are to be raised by an offset next line during the times when cooling is not scheduled to be on according to a schedule or schedules next page 0 0 to 50 0 The amount by which the heating setpoints are to be raised during night setback List box Yes No Whether or not there is an over ride switch wired to a d
171. termination temperature was not reached before the specified time expired Fan start timeout Occurs when the fan is configured to start at a specified temperature after termina tion of defrost and the specified temperature is not reached before the time set for fan delay expires Drip pan clogged Occurs when a clogged drain is sensed due to standing water in the fixture drip pan Box door open a door switch must be installed and connected to the AKC 164 for this alarm Occurs when the box door is open past the specified delay time Power failure Occurs when the AKC 164 resumes operation following interruption of power Hardware failure Occurs upon detection of one or more internal AKC 164 hardware failures Replace ment of the AKC 164 may be necessary Sensor fail alarms Occur when the AKC 164 detects failure of one or more of its sensors and AKC 165 Subcooling controllers Configuration of alarms for these controllers is not covered in this manual but in the separate literature for the individual controllers System Manual RC IU B3 22 4 119 4 120 Configuration of condenser alarms Desf The fourth selection on the rack alarm configuration menu is Condensers Before configuring condenser alarms if you are implementing condenser control finish answering the condenser configuration questions Depending on the type of condenser configuration the alarms presented will differ For the most part the alarms presented i
172. tes cooling must run after being turned on before being turned off 0 to 60 The minimum number of minutes cooling must remain off after being turned off before being turned on RC IU B3 22 AKC 55 RTC Heating configuration 1lo 1s 2002 HS Configure ETU Wum of heating stages Control heating using 7 Target differential T Target temp for stage l 69 0 F z 69 0 F Fre delay for stage fl O min 2 min Fost delay for stage fl O min 2 min 4mbient heat lockout 7 Wo heat shove 2 425455 7 Night sSetbacE o oeo T Wight setback affset 7 Hinimum ON time I Hinimum OFF time _ 7 O3 47 45 AM Heating Ra Z Return Air 1 0 F Num of heating stages Control heating using Target differential Target temp for stage Pre delay for stage Post delay for stage Ambient temp lockout No heat above Night setback AKC 55 System Manual RC IU B3 22 0 to 3 The number of stages of heat in the unit List box Return Air Heating will be controlled to satisfy a return air target temperature Average Heating will be controlled to satisfy an average zone temperature target Low Heating will be controlled to satisfy a zone target temperature for the lowest of a number of zone temperature sensors Zone 1 etc each supply zone temperature sensor will be available as a choice in the list Control will be based on the single selected sensor 0 1 to
173. the Other Controllers icon and press ENTER a menu is presented that allows selection of any of six types of other controllers that can be nodes on the control system I O network AKC 55 System Manual RC IU B3 22 4 45 10 10 2002 Aa Foard amp Points AEC 16x YLT EEC 5 Bitzer DEG MASTER He ECU TITE OE AKC 16x circuits Board amp Points You will also see these icons at the bottom of any of the Other Controllers screens Selecting the first one whether from the menu or from the bottom of the screen produces the related configuration screen Here s the one for AKC 16x Smart Case Controllers 1010r z002 Confiqure Back SEC LEX ARC ler Control Name Address Init Circuit AL3 0 Init The fields and contents are Name Label field any 15 characters The name of the evaporator being controlled by the AKC 16x AKC 16x refers to AKC 161 AKC 164 or AKC 165 controllers whichever is configured on each node The default names for the AKC 16x circuits automati cally added during configuration of refrigeration are shown and will suffice in many applications They can be edited character by character put the cursor on the field press to change to edit mode then use the left System Manual RC IU B3 22 AKC 55 Network Re scan and Initialization Navigation EKC circuits Board amp Points Address Init Dave and right arrow keys to move from space to space and the up and dow
174. the conditions read If SII is greater than or equal to Num2 turn on the OI If SI3 is greater than or equal to Num4 turn on the OI Under any other conditions leave the fan off Another way to state the effect of this logic 1s If compressor room temperature is equal to or greater than 90 or refrigerant is sensed at 500 ppm or more turn on the fan else turn off the fan This is exactly what we set out to do AKC 55 System Manual RC IU B3 22 4 137 4 138 Davee Creating the miscellaneous points relay output Exit to the Configure Miscellaneous menu and from there select Relay Outputs and press ENTER The configuration screen for a relay output appears fi fi2 2002 ll l 10 36 30 AM 1pm i CFE mia Lelay Outputs Wo of relay outputs 1 Mane Beast Bd FPe On Compr Bm EXFAN Wo o4 7 W Open TEE The first step in configuring a miscellaneous RO is to increase the field No of relay outputs by 1 In this example we re increasing 0 to 1 because this is the first miscella neous RO to be configured Here s what to do and where to do it Name Label any 15 characters Edit the field to read appropriately to the purpose Beast List box No Send Rec Leave the Beast field set to No We are not going to use the point elsewhere on the network Bd Pt Bd Pt label In the Bd Pt field enter the number of the board and terminals where the RO will be wired On List box N Closed N Open Beca
175. tion screen for the each circuit The meanings of the alarm action settings are as follows Critical When conditions have been at or have gone beyond the alarm s trip level for the set time the alarm will occur The alarm will dial out repeatedly at the interval set in the routing screen from 10 to 99 minutes with a default value of 10 minutes Normal When conditions have been at or have or have gone beyond the alarm s trip level for the set time the alarm will occur The alarm will dial out once Log Only When conditions have been at or have gone beyond the alarm s trip level for the set time the alarm will occur There will be no dialout but the occurrence will be logged in the system as an active alarm Disabled The alarm is deactivated and will not occur or dial out its configuration if any will remain in memory so that if it is set to Critical Normal or Log Only the same trip level and time will appear in the screen Delete The alarm s configuration will be deleted from memory You can change the alarm action setting by selecting the field and scrolling to the action you want move the cursor to the field then press the key then use the arrow keys to scroll through the settings then press ENTER Standard alarms are the alarms that are automatically created during configuration of refrigeration HVAC and other parts of the control and monitoring network You can also custom configure up to three misce
176. trollers VLT adjustable frequency drives Bitzer variable speed compressors DCU case controllers Board amp Points configuration for EKC controllers begins by selecting EKC from the Configuration Board amp Points menu Our example shown below has only one circuit AKC 55 System Manual If EKC has been selected as the circuit type for more than one circuit in the suction group this screen will show a list of all of those EKC circuits RC IU B3 22 4 47 10 10 2002 Confiqure Back A By ERC Controls E Name Addr Circuit sd 55 Init Upload Wink The fields and contents are Name Label field any 15 characters The name of the evaporator being controlled by the EKC The default names for the EKC circuits automatically added during configuration of refrigeration are shown and will suffice in many applications They can be edited character by character put the cursor on the field press to change to edit mode then use the left and right arrow keys to move from space to space and the up and down arrow keys to select the character for that space When the name appears as you want it press ENTER Address 0 to 99 The address set on the EKC EKC ad dresses are set using the buttons on the EKC The installer should provide a list with the address for each fixture If such information is not available obtain the address at the fixture from the EKC by using the buttons Init Init button field Use in accordan
177. ts screen appears increase the number of on off inputs in the first line by or a higher number to match the number of inputs you want to configure Edit the name of the input then complete configura tion by making a selection for each field for each new input the enter the number of on off inputs you want to configure A step by step configuration example for a miscellaneous on off input appears in the second example in the miscellaneous calculations section which follows in a few pages Miscellaneous conversions are used for sensors that have an output range or range to value relationship not already defined as one of the named types in the sensor input configuration list box To configure a miscellaneous conversion select Conv Factors from the Configure Miscellaneous menu The Configure Conversion Factors screen appears The field contents which may be selected and the range of values for each are as follows Units psi bar F C ppm V Amp kw kwh Hz gpm fps pH Min input 0 0 10 0 Max input 0 0 10 0 Min output 0 3276 7 Max output 0 3276 7 Select the units for the sensor reading then from data supplied by the manufacturer enter the minimum and maximum input voltage and the values which correspond to System Manual RC IU B3 22 4 129 4 130 Miscellaneous calculations Point creation Desf each Remember that the custom conversion factor must be selected from the list box f
178. ual 0 to 6 The number of dehumidification stages 40 0 to 150 0 The dehumidification setpoint during operating hours as configured in the Store Info screen 40 0 to 150 0 The dehumidification setpoint during store closed hours as configured in the Store Info screen 40 0 to 150 0 The outside ambient temperature below which dehumidification will be locked out 0 to 99 The number of minutes after the start of a dehumidification stage that must elapse before the next stage can start Also the minimum time each stage must run before being turned off List field Yes No Whether or not auxiliary heat is to be locked out when dehumidification is running A yes answer here means that only heat reclaim can be used for reheating during dehumidification RC IU B3 22 AKC 55 iH Economizer Outside ambient target 7 Qubside dewpoint target 0 0 Configure CT ETU 5 Economizer Outside ambient target Outside dewpoint target ClimaTECH alarm configuration List box Yes No Whether or not there is an econo mizer function in the HVAC unit 40 0 to 150 0 The target The number of stages of auxiliary heat in the HVAC unit 0 0 to 150 0 The heat reclaim setpoint during store closed hours as configured in the Store Info screen ClimaTECH alarms are presented differently than most other alarms Type Alarm delay High zone temp Wormal Low Zone t Wo Airflow Phase Loss Inverter f Fire A
179. unit s zone Zone Temp 1 1 etc each zone temperature sensor will be available as a choice in the list Control will be based on the single selected temperature sensor 0 to 2 The number of stages of heat reclaim in the rooftop There will be a target and delays for each stage configured 0 0 to 100 0 The target temperature for the heat reclaim stage 0 to 60 The number of minutes after target minus range is reached before the stage will be turned on 0 to 60 The number of minutes after target plus range is reached that the stage will be turned off 0 0 to 9 9 The range applied to target prior for control actions See preceding two settings List box Staging Auxiliary heat is staged None There is no auxiliary heat Analog valve Auxiliary heat is regulated by a modula ting valve List box High Speed Low Speed The fan speed for RC IU B3 22 AKC 55 AKC 55 RTU Heating auxiliary heat configuration p2 staging strategy System Manual Night setback Night setback offset Override switch Override duration Num of schedules High supply temp lockout Lockout above Deadband E Configure ETU 1 lo fis 2z002 Davee heating List box Yes No Whether or not there is to be a night setback for heat 0 0 to 50 0 The amount by which the heating setpoint set on previous page is to be lowered during times when night setback is scheduled List box Yes No Whether or not there
180. ure Suction Fres C 06 1 Disabled Low Pressure Suction Pres C 06 1 Disabled High Pressure Suction Pres C 06 1 High Pressure Suction Pres C 06 1 Disabled Disabled Low Temperature Suction Temp C 06 5 Low Temperature Suction Temp C 06 5 Disabled Disabled PG DM for more PG DN for more After choosing an action level for the alarm move the cursor to the next changeable field Because we are configuring a digital alarm that is constrained to a value of On the only remaining fields we can change are for the time The numeric value can be System Manual RC IU B3 22 AKC 55 Davee set to any number from to 9999 and in our example we have entered 1 The field for the time units has a list box as seen below from which you can choose sec min or hour For the Phase Loss alarm 1 minute is an appropriate setting so we leave the field reading min 4 27 19 PH Type Name Address Alarms Suspended Hack C E Disabled Fhase Loss Phase Loss C Normal On for Low Pressure Suction Pres C Disabled High Pressure Suction Pres C 06 1 Disabled Low Temperature Suction Temp C 06 5 Disabled PG DN for more Analog alarms Let s now configure the Low Pressure alarm which is an alarm for an analog value Move the cursor to the action level field under the type description Low Pressure open the list box and select Normal As with the Phase Loss alarm whose configura tion was just described a line of settings app
181. ure sensors List box Min Temp Control will be based on the lowest value of all of the return air temperature sensors Max Temp Control will be based on the highest value of all of the return air temperature sensors Average Control will be based on the average of all the return air sensors Return Air 1 1 etc each return air temperature sensor will be available as a choice in the list Control will be based on the single selected sensor 0 to 5 The number of supply air temperature sen SOTS List box Min Temp Control will be based on the lowest value of all of the supply air temperature sensors Max Temp Control will be based on the highest value of all of the supply air temperature sensors Average Control will be based on the average of all the supply air sensors Supply Air 1 1 etc each supply air temperature sensor will be available as a choice in the list Control will be based on the single selected sensor When outside air coils are configured the first cooling screen looks like this RC IU B3 22 4 67 Controlling Sensor lt TAverage Wum of cooling stages T4 Mun of outside air coilst Consider dewpoint TMo OA Coil LAT low limit 740 0 F Enable O42 Coil 1 above 50 0 F Enable OA Coil 2 above 7i F Target temp for stage 1 V74_ 0 F 2 74_ 0 F Pre delay for stage l 1 min 2 1 min OAL 1 min O47 1 min Post delay for stage l 1 min 2 1 min OAL 1 min
182. use the normal state of the fan will be off we will wire through the normally open contacts for the output relay Notice the character gt that is in reverse video in our example above This is a button field and when it is selected ENTER will take you to the next page Initially the second page of this screen appears as at left below System Manual RC IU B3 22 AKC 55 L1f1l2 2002 11 0107 CFG Meee beeee Pe er ub pubs Name aha ee Bd Pe O4 7 Beast Wo On N Open Control Input 00 0 Wot configured Minimum OFF O minutes Pre delay O minutes Minimum ON O minutes Post delay O minutes Water Pump Az Conftiqure Hise Oil Fail AaAl Wane Ed Ft Beast On Control Input Minimum OFF Pre delay Minimum ON Post delay Oil Fail Adz Oil Fail 443 Oil Fail 44 Oil Fail Aas Dual Temp AAZ Box Door Adz Phase Loss B Fire Stat Burglar Alarm Fire Alarm Ca Ol OL Winwtes Winwtes Winwtes nint es It is not necessary to change anything in the top half of this screen which repeats the configuration we entered on the previous page though we could change it here if we wanted There are two things to add to configuration here Control Input List box all configured OIs Our new calculated OI is found at the bottom of the list Use the three dots at the top or bottom to move up or down the list a page at a time The other fields on the screen are timers To kee
183. utputs For a ClimaTECH 1024 these capacities are increased to 10 10 and 24 respectively It is the purpose of the I O Points screens to allocate these An input or output number from 1 up to the limit of the controller is entered under the stage number in the case of relay outputs System Manual RC IU B3 22 AKC 55 loyv1ls 2002 iH zone temp group Inside dewpt group Configare CT ETU 5 iJ Sensor Inputs Humidity sensor 3 DP Point Type Function zone l None Control zone O None Control zone 3 oO None Control zone 4 O None Control Alarm 1 None Alarm None Alarm 3 None Alarm 4 0 None PG DN for more Edd ee _ Zone temp group Inside dewpt group Humidity sensor Humidity sensor Point Type Function ClimaTECH on off input configuration AKC 55 System Manual RC IU B3 22 0 to 99 The group to which this ClimaTECH unit belongs for zone temperature Several ClimaTECH units in a network can be controlled by a single sensor wired to one of them If this feature is not used leave group number set to 0 0 to 99 The group to which this ClimaTECH unit belongs for dewpoint Several ClimaTECH units in a network can use a single sensor wired to one of them If this feature is not used leave group number set to 0 0 0 to 150 0 The heat reclaim setpoint during store closed hours as configured in the Store Info screen List box RH DP Whether a relative humi
184. ven in the next column AKC 55 Bd Pt Address field If the sensor value is received from another node on the AKC 55 I O network enter here the address of the point that is to be received Configuring RTC I O on off inputs Here is the screen for on off digital inputs reached with the third icon from left Note that the screen is divided in two parts the upper half deals with inputs available on the RTC board and the lower half shows inputs that can be received from other nodes on the I O network The names appear whether or not the points are config ured or used AKC 55 System Manual RC IU B3 22 4 79 I Points ARC 55 Ft Config On Bd Pt L Yes Yoltaqge 2 Cool 1 Mo Toltage 3 Cool z Mo Toltage 4 Smoke Det Rec No Voltage inal AFC 55 Inputs Nane Beast Or Bd Pt Override Rec Yoltaqe 00 0 Smoke Stat 3 Mo Wo Voltage OO O Phase Loss 3 Rec Yoltaqe 00 0 TERE First the RTC Inputs Pt Name Config AKC 55 Bd Pt 1 to 8 The number of the point Label field not changeable The name of the point The names are fixed since the hardware points on the RTC board are dedicated and can serve only for the listed devices The names always appear as in the illustration above whether the input is used or not List field one for each point Yes The input is configured It should be wired if this answer is given or the configuration should be changed No The input is not configured Its state can not b
185. wer here will create an analog input sensor input for the drop leg temperature sensor Appears only if control is not by dropleg temperature List box Target The condenser fans will be controlled to maintain a target pressure dropleg temperature or saturated condensing temperature depending on which strategy is selected by the answer to the Control sensor question above Cutin Cutout The condenser will be controlled by cut in and cut out based on target pressure dropleg temperature or saturated condensing temperature depending on which strategy is selected by the answer to the Control sensor question above If Cutin Cutout is selected the next page will provide for selection of cut in and cut out setpoints The page is not shown here but is straightforward RC IU B3 22 AKC 55 AKC 55 Target control type Ramp stages if ambient Min sat cond temp Max sat cond temp Condenser Delta T Target Dave Please read about all of the possible answers List box Ramp together Where there is variable speed fan motor control fans will come on in stages at minimum speed then all will be ramped up together Ramp stages Where there is variable speed fan motor control each stage will be brought on and ramped up When a stage is at maximum speed and additional fan capacity is needed the stage will be dropped to minimum speed and the next stage brought on at minimum speed then ramped up as required Neutral
186. which the inverter will be put in override 0 99 The number of seconds without proof that must elapse before an inverter reset occurs RC IU B3 22 4 11 Configuring other compressors in the suction group Compressor oil and safety information Desf Min time between resets 0 to 99 The number of seconds that must elapse before second and subsequent inverter resets Paging down you will find a page for each compressor in the suction group These subsequent screens will have only questions pertaining to the individual compressors not the rack questions found at the top of the screen for compressor number one After basic operating data has been entered for all compressors paging down will produce this screen GIL contro NA Sree ae et fres Type of oil monitor TSensor Input Lockout comp on oil fail Yes Low oil pressure diff 7 amp 0psi il pressure delay T60 sec Wo of oil reset attempts 3 Min time between resets 5 min Monitor comp disch tenp Yes Stop comps on high temp Yes Cutout 240 07 FR bitin 230 0 F Shop comps on low temp Yes Lockout 90 min below 40 0 F for lmin Disch pressure safety Yes Cutout 325 0psi Cutin 275 0pesi Unload before cutout 7 Yes The fields and their contents are as follows Oil control List box Yes No Whether or not oil control is implemented Type of oil monitor List box Sensor Input An analog input sensor input is used to monitor oil pres
187. will come on at 47 and will not be turned off until humidity reaches 43 0 0 to 100 0 The zone temperature below which dehumidification will be disallowed List box Yes No Whether or not there is to be a lockout based on low ambient temperature 0 0 to 100 0 The ambient temperature below which dehumidification will be locked out 0 0 to 9 9 The range for the lockout Dehumidifica tion will be locked out at lockout minus range and when locked out will be allowed on at lockout plus range 0 to 20 The number of minutes that a stage must run before being turned off O to 20 The number of minutes that must elapse after a stage is turned on before the next stage can be turned on List box Yes No Whether or not the dehumidifica tion setpoint is to be raised by an offset next line when dehumidification is not scheduled to be on according to a schedule or schedules next page 0 to 99 The number of by which the dehumidifica tion setpoint is to be raised during night setback List box Yes No Whether or not there is an over RC IU B3 22 AKC 55 Dave ride switch wired to a digital input Override duration 0 to 1439 The number of minutes that control will be overridden after operation of the override switch Num of schedules 0 to 8 The number of operating schedules entered on the following page s Seasons 4 password 5 character auth code The password given by Seasons 4 to the equipment owner

AKC%2055%20Manual%20..

Contents

Download Pdf Manuals

Related Search

Related Contents