469690 IOM - Greenheck
Contents
1. UNIT STATUS MENU Access the UNIT STATUS menu through the Main Menu Scroll through the menu screens using the it keys Screens with a dashed line border are dependent upon an optional accessory and may not always appear STATUS LINE THE Status LINE DISPLAYS WHICH MODE THE UNIT IS IN System Status Possible modes include hr min sec A Initial Delay J Sys On Dehumidifying mm dd yyyy B Opening Dampers K Sys On Dehum amp Reheat C Exhaust Fan Starting L Unoccupied Unit Off D Supply Fan Starting M Unoccupied Heating E System On N Unoccupied Cooling F Defrost Mode Active O Manual Override G Sys On Economizer P Remote Off H Sys On Heating Q Press Alarm Button L Sys On Cooling STATUS LINE THE TEMPERATURES ON THIS SCREEN DISPLAY REAL TIME CONDITIONS FROM THE Outside 000 0 F SENSORS IN THE UNIT Supply 000 0 F After a period of inactivity approximately 3 minutes the controller will revert to this Cold Coil 000 0 F screen STATUS LINE THE TEMPERATURE ON THIS SCREEN REPRESENTS THE REAL TIME CONDITIONS Room 000 0 F BASED ON THE SENSOR IN THE ROOM i 1 I 1 This screen only appears if the room supply temp reset sensor is wired into B4 and BC4 on the controller STATUS LINE THE CONTROLLER DISPLAYS THE RETURN SIGNAL THAT IS BEING RECEIVED FROM THE SUPPLY AND EXHAUST FANS Supply Fan On On indicates the fan is running In most modes of operation bo2. THIS SCREEN DISPLAYS THE ON OFF FAN CYCLE TIMES FOR THE TIMED Exuaust Frost CONTROL AND ALLOWS THE USER TO ADJUST THESE PARAMETERS This screen only appears if Timed Exhaust Frost Control was provided with the unit These ON and OFF times prevent the buildup of frost when the unit is in Timed Exhaust frost control mode THIS SCREEN DISPLAYS THE INTEGRATION TIME FOR THE PI CONTROL OF THE COOLING MODE AND THE TEMPERATURE BAND AROUND THE SUPPLY SET POINT This screen only appears if a Cooling option was provided with the unit This controller uses a Proportional Integral type control The integration time programmed into the controller is to provide a smooth reaction to conditions allowing for less sporadic changes in discharge temperature To speed up reaction time decrease the integration time For slower reaction time increase the integration time When making adjustments make them in small increments and test the system to determine if the new setting is adequate prior to further adjustment The band is the range that the integration will occur between Range of Integration Supply set pt Band ie 50 F 20 F 17 PROGRAM MENU continued Compressor Setup i of stages 2 Minimum ON 030s Minimum OFF 180s THIS SCREEN DISPLAYS THE NUMBER OF STAGES PROVIDED WITH THE UNIT AND SHOWS THE COMPRESSOR Minimum ON anp OFF Times IN SECONDS This screen only appears if DX cooling was provided with the uni
3. THIS SCREEN ALLOWS FOR ADJUSTMENTS TO BE MADE TO THE ORDER OF WHICH Lead Lag Note COMPRESSORS WILL ENGAGE Stage 12 This screen only appears if 2 stage DX cooling was provided with the unit This screen shows the order in which the compressors will engage when operating in the lead lag setup Compressor Lead 12 Compress Lag 21 IF THE CONTROLLER DETECTS THREE 3 ALARMS IN THE TIME PERIOD SHOWN IT Compressor will lockout if WILL SHUT OFF THE COMPRESSORS AS A SAFETY MEASURE I 1 U DH l Safety switches ID8 trip This screen only appears if DX cooling was provided with the unit I 1 The safety lockout screen monitors the safety loop of the DX system including high limit low limit and ambient temps If the controller detects three 3 trips within 120 minutes the controller will shut down the DX system Example If the low limit switch trips automatically resets and then trips two more times within 120 minutes the DX system will shut down If there is a fatal trip such as a high limit pressure switch trip the DX system will not run and the controller will signal an alarm after trying three times unsucessfully to start the DX cooling process 3 times in 120 min THIS SCREEN DISPLAYS THE INTEGRATION TIME FOR THE PI CONTROL OF THE i Heater Controller l Integration 300s Band 20 F I I D 18 HEATING MODE AND THE TEMPERATURE BAND AROUND THE SUPPLY SET POINT This screen only appears
4. Alarm Open Status Closed Digital Input ID6 Occupied Unoccupied Occupied when Open Status Closed Digital Input ID7 Dirty filter switch Alarm Closed Status Open Digital Input ID8 Compressor limits Alarm Open l Status Closed l I End of I O setups THIS SCREEN DISPLAYS THE ALARM STATUS MODE OF THE ENERGY RECOVERY WHEEL PRESSURE SWITCH When the Wheel pressure switch alarm is triggered the wheel has excessive frost or dirt build up The High pressure parameter allows the user to select Open or Closed for the contact position that will trigger the alarm Status displays the real time status open closed of the digital input THIS SCREEN DISPLAYS THE ALARM STATUS MODE OF THE ENERGY RECOVERY WHEEL ROTATION SENSOR When the Wheel rotation alarm is triggered the wheel has stopped rotating Refer to PROGRAM menu for wheel rotation alarm delay Status displays the real time status open closed of the digital input THIS SCREEN DISPLAYS THE STATUS MODE OF THE REMOTE INPUT FOR UNIT ON OFF CONTROL The Unit ON when parameter allows the user to select Open or Closed for the contact position that will energize the unit Status displays the real time status open closed of the digital input THIS SCREEN DISPLAYS THE ALARM STATUS MODE OF THE EXHAUST FAN When the Exhaust proving switch alarm is triggered the fan is not seeing airflow and the unit will shutdown and alarm The Ala
5. Desired Supply Temperature 72 0 F Outdoor Air Reset Function 73 71 69 67 65 63 Desired Supply Temperature ST 60 0 F 59 57 55 T T T 55 60 65 70 75 Discharge Temperature F Outside Air Temperature F SET POINTS MENU continued Room Set Point Local set pt 72 0 F Supply Reset Limits Supply Min 055 0 F Supply Max 090 0 F Cold coil set point Normal Mode 55 0 F Dehumidify 50 0 F Active set pt 55 0 F 1 1 A i Unit will energize ito maintain unocc room set points Differential 5 0 F i Unoccupied room set point l Heating 65 0 F Cooling 85 0 F 1 1 A Heater Lockout Lockout heater when outside air gt 70 0 F Hysteresis 02 0 F THIS SCREEN DISPLAYS THE SPACE TEMPERATURE SET POINT This screen only appears if the room supply temp sensor is wired into terminals B4 and BC4 on the controller The unit will reset the unit discharge temperature up and down to maintain the local set point If a BMS is interfaced with the controller the user has the capability to dictate the desired Room set point through the BMS The screen will show a BMS set point and an Active set point The Active set point is the room temperature the controller is currently trying to maintain THIS SCREEN DISPLAYS THE MINIMUM AND MAXIMUM SUPPLY AIR TEMPERATURE This screen only appears if the room supply temp sensor
6. O SETUP menu gt Analog Output Y3 DX Coil Cooling Control displays compressor engagement as a percent e 000 Compressors OFF 1 or 2 compressor system e 050 First compressor ON 2 compressor system e 100 First amp second compressor ON 2 compressor system First compressor ON 1 compressor system UNIT STATUS MENU continued GE EEN i STATUS LINE i Cooling Control 000 Compressor a a ee ae eee a a a EE i STATUS LINE i Hot Gas Reheat 000 l Heater Control 000 I l e a a STATUS LINE i Energy recovery wheel differential pressure is Normal Pt EE EE e i STATUS LINE Preheat heater OFF l EES End of status menu THIS SCREEN DISPLAYS THE COOLING CONTROL AS A PERCENTAGE CONTINUED The Compressor line indicates which compressor is ON 1 First compressor 2 Second compressor 12 Both compressors To override MANUAL OVERRIDE menu gt Cooling Loop Override THIS SCREEN DISPLAYS THE CURRENT REHEAT AND HEAT OPERATION OF THE UNIT Hot Gas Reheat only appears if provided with unit Hot Gas Reheat operation is on off control displayed as a percent 100 is ON and 000 is OFF To override MANUAL OVERRIDE menu gt Hot Gas Reheat Override For Modulating Hot Gas Reheat Control 000 is OFF and 001 HGRH is ON and the airflow damper is modulating between 4 VDC and 10 VDC Heater Control displays the real time percent heate
7. SCREEN INDICATES WHETHER THE ELECTRIC PREHEAT FROST CONTROL IS ON OR OFF This screen only appears if Electric Preheat frost control was provided To override MANUAL OVERRIDE menu gt Energy Recovery Wheel Preheater SET POINTS MENU Access the SET POINTS menu through the Main Menu Scroll through the menu screens using the f keys ACCESS DENIED THIS SCREEN CAN BE LOCKED TO PREVENT TAMPERING WITH THE SETTINGS FROM THE FACTORY ACCESS IS NOT PASSWORD PROTECTED TO ALLOW QUICKER Enter Password 0000 STARITUP WRONG PASSWORD To set the password go to the PROGRAM menu by pressing the s button Once there scroll down until you arrive at the Change Password screen The Level 1 password protects the SET POINTS menu Unit Set Points Supply set pt THIS SCREEN DISPLAYS THE CURRENT DISCHARGE SET POINT FOR THE UNIT is currently HOF WHICH IS THE TEMPERATURE THE UNIT IS TRYING TO DISCHARGE This set pt is reset If there is no room temperature sensor nothing wired to terminals B4 and BC4 on up down by the DDC controller the controller changes the supply air discharge temperature of the unit based on the outdoor air temperature refer to outdoor air reset function below With no room temperature sensor a BMS can override the controller and input directly the desired supply temperature for the unit If a room temperature sensor is connected to terminals B4 and BC4 on the DDC control
8. THE FACTORY ACCESS IS NOT PASSWORD PROTECTED TO ALLOW QUICKER START UP To set the password go to the PROGRAM menu by pressing the ee button Once there scroll down until you arrive at the Change Password screen The Level 2 password protects the I O SETUP menu THE I O SETUP MENU IS USED TO SET UP THE ANALOG amp DIGITAL INPUT OUTPUTS NOTE The wiring terminal for each I O is displayed in the respective screens Sensor Temp is the sensor s uncalibrated output Offset is for calibrating the sensor Actual Temp is the new calibrated sensor output THIS SCREEN DISPLAYS THE OUTSIDE AIR TEMPERATURE ENTERING THE UNIT THIS SCREEN DISPLAYS THE SUPPLY DISCHARGE TEMPERATURE THIS SCREEN DISPLAYS THE AFTER COOLING COIL TEMPERATURE This screen only appears if a cooling system was selected THIS SCREEN DISPLAYS THE ROOM TEMPERATURE This screen only appears if the room supply sensor is wired between B4 and BC4 on the controller THIS SCREEN DISPLAYS THE STATUS OF THE DIGITAL INPUT TO TERMINAL B4 This screen only appears if the room supply sensor is NOT wired between B4 and BC4 on the controller When the Input Status is Open the unit will operate normally and adjust the discharge temperature based on outdoor air temperature When the Input Status is Closed in the case of a digital input ie Thermostat this indicates that a digital call for cool is being received by the c
9. has been cleared No action is required Sometimes a sensor can jump out of range for a short period of time causing an alarm The sensor is probably OK as long as the sensor does not continually alarm and the displayed value looks reasonable Step 7 If the alarm signals again the problem still exists and action needs to be taken Fix the condition that has caused the alarm List of possible alarms SUPPLY AIR AL Indicates a loss of airflow in the supply fan Alarm amp Shutdown EXHAUST AIR AL Indicates a loss of airflow in the exhaust fan Alarm amp Shutdown DIRTY WHEEL AL Indicates a buildup of pressure across the energy recovery wheel Alarm WHEEL ROTATION AL Indicates a wheel rotation failure Alarm DIRTY FILTER AL Indicates a buildup of pressure across the filters Alarm COMPRESSOR TRIP AL Indicates a high or low refrigerant pressure Alarm amp Compressor Shutdown AC LOCKOUT AL Indicates either the low pressure or high pressure switch are open Alarm amp Compressor Shutdown SUPPLY LOW LIMIT AL ren a discharge temperature lower than the supply low limit Alarm amp Shutdown MB1 FAIL Indicates a failure of the outside air temperature sensor Alarm MB2 FAIL Indicates a failure of the supply air temperature sensor Alarm MBS FAIL Indicates a failure of the after cooling coil air temperature sensor Alarm MAIN MENU ESC BUTTON Access the Main Menu by pressing the Esc key Scroll
10. less than cursor to the next parameter or to the upper left corner 32 0 F Alarm delay 030s When finished make certain the cursor is in the upper left corner If the cursor is not in Supply air low limit alarm the upper left corner the changes made will not be saved The cursor must be in the when supply is less than upper left corner to enable screen advancement 32 0 F Alarm delay 030s Example of alarms If an alarm occurs the LG buttom will glow red and a buzzer will sound if a remote display panel is connected to the controller if enabled za AL ADM Step 1 Press the Alarm button once This will disable the buzzer and B1 SENSOR ERROR display which alarms have occurred OUTSIDE TEMPERATURE Step 2 Scroll down through the alarm screens if more than one has occurred ALARMED hr min mm dd Use the arrow buttons or alarm button to scroll through the alarms Step 3 Note which alarms occurred and at what time Step 4 Scroll down until the Alarm Options screen is displayed ALARM OPTIONS Press UP to review Step 5 Press the Esc s button to exit without resetting the alarms Press Esc to exit In this mode the unit will remain operational as long as the alarm is Press ALARM to RESET non fatal Non fatal alarms dirty filters sensor failure Fatal alarms airflow loss OR Step6 Press the Alarm 2 button to reset the alarms If the alarm button stops glowing red the alarm
11. through the menu screens using the t keys THE UNIT ON OFF MENU ALLOWS THE USER TO TURN THE UNIT ON AND OFF EE FROM THE CONTROLLER PROVIDED THE R TO G CONTACT IN THE UNIT CONTROL off below CENTER IS CLOSED Command Unit ON Press Enter to highlight ON Off in the lower right corner Press the the t buttons to turn unit ON or OFF A remote ON OFF switch may also be wired into ID4 Press ESC to exit End of Information menu PROGRAM MENU Access the PROGRAM menu by pressing re key Scroll through the menu screens using the keys The program button is used to setup the control loops for economizer defrost heating cooling and reheat along with defaults for staging supply reset time delays occupied mode communications set point source temperature scale and changing passwords Adjustments to these parameters should be performed by a qualified technician A Level 2 password must be entered to alter any of the factory programming factory default is 9998 ACCESS DENIED Enter Password 0000 WRONG PASSWORD Factory Setup Consult factory before altering l DH 1 Economizer Controller I Integration 300s Control Band 20 F Economizer Setup Econo on off times Minimum ON 300s Minimum OFF 300s i Supply fan cycling i defrost setup Fan off time 005min i Fan on time 030min Cooling Controller l Integration 300s Band 20 F THI
12. through the menu screens using the 4 keys All controller menus are accessed through the Main Menu See below for description of each menu Refer to the page references for additional details about each menu For details on the Program Menu see page 17 SCREEN DESCRIPTION ADDITIONAL INFORMATION Press ENTER to go to UNIT STATUS menu Press down for more menu options The UNIT STATUS menu allows the user to view real time conditions of the unit Conditions that are displayed include e Temperature Sensors e Reheat e Fan Operation e Heating e Energy Recovery Wheel Operation e Cooling For additional information please refer to page 5 e Compressors e Preheater Press ENTER to go to SET POINTS menu Press up or down for more menu options The SET POINTS menu allows the user to make adjustments to set points The adjustable set points relate to e Heating e Economizer Mode e Cooling e Supply Air Low Limit e Dehumidification e Wheel Defrost The factory programmed default settings may need to be adjusted to achieve optimum performance for the specific application For additional information please refer to page 7 Press ENTER to go to OVERRIDES menu Press up or down for more menu options Press ENTER to go to UO SETUP menu Press up or down for more menu options The OVERRIDES menu is for start up commissioning and troubleshooting the unit Components that can be overriden
13. within the system are e Frost Control Preheater e Energy Wheel e Heating e Hot Gas Reheat e Cooling For additional information please refer to page 10 The I O SETUP menu allows the user to view the status of the digital and analog inputs and outputs of the DDC controller In addition adjustments can be made to recalibrate sensors and change input and output parameters For additional information please refer to page 12 Press ENTER to go to CLOCK SETUP menu Press up or down for more menu options The CLOCK SETUP menu shows the settings for the internal time clock The Clock Setup menu is capable of e Setting up occupied unoccupied modes e Adjusting the time and date For additional information please refer to page 15 Press ENTER to go to MISC INFO menu Press up or down for more menu options The MISC INFO menu displays the version of the program and the DDC Code programmed The DDC Code provides details of how the unit was ordered and intended to operate Both the program version and the DDC Code are required when contacting the factory for assistance For additional information please refer to page 16 Press ENTER to go to UNIT ON OFF menu Press up or down for more menu options The UNIT ON OFF menu allows the user to turn the unit on and off from the controller For additional information please refer to page 16 End of MAIN MENU Hrs min sec month day year
14. 410 Schofield WI 54476 0410 715 359 6171 greenheck com IOM DDC Controller Rev 1 February 2007 Copyright 2007 Greenheck Fan Corp
15. ED OR DISABLED The temperature can be either Fahrenheit or Celsius The buzzer is only applicable when there is a remote interface panel attached to the controller If an alarm were to occur the remote display panel would begin buzzing loudly if the buzzer was enabled and it would show the alarm status THIS SCREEN DISPLAYS AND ALLOWS FOR ADJUSTMENTS TO BE MADE TO THE CODE FOR THE UNIT This code is set from the factory to operate the components selected with the unit Refer to front page for code description When troubleshooting be sure to verify that the code matches the components provided with the unit If the code needs to be modified press Enter 4 and the cursor will move to the first character Use the f 4 keys to adjust Press Enter lt 1 to move to the next character To finish press Enter until the cursor moves to the upper left corner of the screen THIS SCREEN DISPLAYS THE PASSWORDS WHICH PROTECT THE CONTROLLER FROM TAMPERING Passwords must be greater than zero to be activated LEVEL 1 password locks out the following menus e SET POINTS e MANUAL OVERRIDES e TIME CLOCK LEVEL 2 password locks out the following menus e PROGRAM e I O SETUP menus Wey Z HO 3 0W31 9 epulang jenueyy s 6uljooo paidnoo oun p 1 6ulyeay paidnosoun 1 yO pun p idnovoun z paul ge BulAjipiuinyap uo waS S LL BulApipiuunyep uo w s s 0 Huljooo uo w zs s 6 Hulyeay uo wo s
16. Enter the desired Occupied Unoccupied start times for each day 24 hour time scale Enter the desired Occupied Unoccupied start times for each day 24 hour time scale 15 TIME CLOCK MENU continued SRS Renee ot a cage Enter the desired Occupied Unoccupied start times for each day 24 hour time scale Occupied Unoccup i Sat 06 00 18 00 i Sun 06 00 18 00 Pig eae E eee er ara Enter the number of holidays you wish to schedule up to 15 days can be entered A Get Holidays Holidays must be updated every year Holiday unoccupied 1 mode for 24 hrs 1 18 of holidays 00 Se ee EES The internal clock will index into unoccupied mode as long as the date is equal to a a 1 E Holiday 1 date entered as a holiday always a 24 hour period Month 01 1 Example New Years Day January 1 Day 01 1 l Unoccupied for 24hrs End of Clock setup MISC INFO MENU Access the MISC INFO menu through the Main Menu Scroll through the menu screens using the keys Greenheck Fan Corp THIS SCREEN DISPLAYS THE VERSION OF THE PROGRAM INSTALLED IN THE ER DDC1 v3 00 CONTROLLER If contacting the factory for assistance record the version of the program and the DDC DDC Code GY2A211X Code displayed on this screen The DDC was supplied with a user manual if missing visit www greenheck com End of Information menu UNIT ON OFF MENU Access the UNIT ON OFF menu through the Main Menu Scroll
17. Full Open THE USER CAN OVERRIDE THE ENERGY RECOVERY WHEEL PREHEATER This screen only appears if the Electric Preheat Frost Control option was provided with the unit To manually override the Electric Preheater adjust the Preheater status from AUTO to MANUAL When the Energy Recovery wheel preheater is in MANUAL mode use the arrow buttons to turn the Electric Preheater ON or OFF 11 UO SETUP MENU Access the I O SETUP menu through the Main Menu Scroll through the menu screens using the keys Sensor Calibration Measure the actual temperature and find the difference from the Sensor Temp uncalibrated This difference becomes the Offset and once the Offset is input to the controller the Actual Temp should match the actual measured temperature ACCESS DENIED Enter Password 0000 WRONG PASSWORD Setups for DDC Analog amp Digital Inputs Outputs B1 Outside NTC Sensor Temp Offset Actual Temp 000 0 F 00 0 F 000 0 F B2 Supply NTC Sensor Temp Offset Actual Temp 000 0 F 00 0 F 000 0 F e E B3 Cold Coil NTC i Sensor Temp 000 0 F Offset 00 0 F Actual Temp 000 0 F ke EES B4 Room Temp NTC i Sensor Temp 000 0 F Offset 00 0 F Actual Temp 000 0 F SS imeem a IEEE R AE BA Input Max cooling demand Input Status Open Se a a a a 12 THIS SCREEN CAN BE LOCKED TO PREVENT TAMPERING WITH THE SETTINGS FROM
18. HW coils please contact the factory for more details THIS SCREEN DISPLAYS THE TEMPERATURE AT WHICH THE UNIT WILL BEGIN FROST CONTROL MODE This screen only appears if a frost control method was provided with the unit The energy wheel transfers both latent and sensible energy at relatively similar efficiencies Therefore in most applications where indoor mositure levels are below 35 RH frost typically will not occur on the energy wheel until outdoor air temperatures are below 5 F Consult the factory if you have any concerns regarding your specific application MANUAL OVERRIDE MENU Access the OVERRIDES menu through the Main Menu Scroll through the menu screens using the t keys ACCESS DENIED Enter Password 0000 WRONG PASSWORD Manual override of control loops Unit must be ON EECHER Energy recovery wheel override Wheel AUTO i Wheel OFF Ke EES Energy recovery wheel override Wheel AUTO Speed 000 SS a Cooling loop override i Cooling AUTO Loop output 000 1 Se a a aaa 4 10 THIS SCREEN CAN BE LOCKED TO PREVENT TAMPERING WITH THE SETTINGS FROM THE FACTORY ACCESS IS NOT PASSWORD PROTECTED TO ALLOW QUICKER START UP To set the password go to the PROGRAM menu by pressing the oe button Once there scroll down until you arrive at the Change Password screen The Level 1 password protects the OVERRIDES
19. Menu THE OveRRIDE Menu IS USED FOR MANUAL OVERRIDE OF THE CONTROL LOOP To manualy override a function change the status AUTO to MANUAL THE USER CAN OVERRIDE THE ENERGY RECOVERY WHEEL OPERATION This screen only appears if there is not a VFD operating the energy wheel When the wheel is in MANUAL mode use the arrow buttons to turn the wheel ON or OFF THE USER CAN OVERRIDE THE ENERGY RECOVERY WHEEL OPERATION This screen only appears if the Modulating Wheel Frost Control or Modulating Wheel Economizer was provided with the unit When the wheel is in MANUAL mode use the arrow buttons to change the Speed to vary the wheel rotational speed The Speed is directly proportional to a 0 10V signal being sent to the energy wheel VFD THE USER CAN OVERRIDE THE COOLING LOOP OPERATION This screen only appears if a cooling option was provided with the unit When the cooling loop override is in MANUAL mode use the arrow buttons to vary the output Chilled Water Coil Loop Output is directly proportional to a 0 10 VDC or 2 10 VDC signal 000 0 VDC Full Closed 100 10 VCD Full Open 000 2 VDC Full Closed 100 10 VCD Full Open 2 Stage DX Coil Loop Output displays compressor engagement as a percent 000 Compressor OFF 050 First Compressor ON 100 First amp Second Compressor ON Second stage will NOT disengage until Loop Output is below 50 First stage will NOT disengag
20. READ AND SAVE THESE INSTRUCTIONS PART 469690 A GREENHECK DDC CONTROLLER Building Value in Air for ENERGY RECOVERY Installation Operation and Maintenance Manual MANEUVERING THROUGH THE CONTROLLER The DDC controller is located in the control panel on the energy recovery unit The face of the DDC controller has six buttons allowing the user to perform various tasks such as viewing conditions or changing set points A brief description of the six buttons is provided For additional details refer to the page references included Prior to accessing the controller confirm the functions that were provided with I mgu the unit by referencing the DDC Code shown on the controller Start Up screen Greenheck Fan Corp ER DDC v3 The Start Up screen appears when power is applied to the controller The program version and code are shown on this screen The code shows the user what components and functionality were provided with the unit and also dicates how the program operates Below is a description of the code e e e me e E ee E a SR g DER Fo JE Es ban DS bozoscchhker wt P poa ppe epo jepon e o o e za EI pee bi LI Le P Sr TI Uescsesc ec ore eane noreo e Code GY2X000B None Disable None Unit Off Indicates both visually on the controller the button lights up and to the Building Management Systems BMS field wired that something
21. S and where required the Identification Press ENTER to setup the and Baud numbers needed to operate the controller Screens displaying the SC icati i ilable with this unit are shown communication parameters communication options available unit are sho Communications Setup Comm Type None Communications Setup Comm Type BACnet Communications Setup Comm Type LonWorks Communications Setup Comm Type pcoWEB Communications Setup Comm Type PlantVisor Identification 001 Communications Setup Comm Type Modem Identification 001 Communications Setup Comm Type MODBUS Identification 001 Baud 9600 21 22 PROGRAM MENU continued i Set Point Source I D Use local set point Or BMS interface set point Local Temperature Scale Select Fahrenheit Display Buzzer Select Enable Select DDC configur ation code here Code GYCA210X Change Passwords LEVEL 1 0000 LEVEL 2 0000 End of Program menu USERS CAN CHOOSE EITHER THE CONTROLLER OR THE BMS To DETERMINE Supp Ly DISCHARGE SET POINT DURING OPERATION This screen only appears if a BMS is wired into the controller Local means the controller set point will be used during operation and BMS Interface means that Supply Discharge set point can be inputted to the controller from the BMS THIS SCREEN ALLOWS THE USER TO ADJUST WHAT TEMPERATURE UNITS THE CONTROLLER SHOULD OPERATE IN AND WHETHER THE BUZZER SHOULD BE ENABL
22. S SCREEN CAN BE LOCKED TO PREVENT TAMPERING WITH THE SETTINGS FROM THE FACTORY ACCESS IS NOT PASSWORD PROTECTED TO ALLOW QUICKER START UP To set the password go to the PROGRAM menu by pressing the es button Once there scroll down until you arrive at the Change Password screen The Level 2 password protects the Program menu THIS SCREEN ALLOWS THE INTEGRATION TIME FOR THE PI CONTROL OF THE ECONOMIZER AND THE TEMPERATURE BAND AROUND THE SUPPLY SET POINT TO BE ADJUSTED This screen will only appear if an Economizer mode was selected with the unit This controller uses a Proportional Integral type control The integration time programmed into the controller is to provide a smooth reaction to conditions allowing for less sporadic changes in discharge temperature To speed up reaction time decrease the integration time For slower reaction time increase the integration time When making adjustments make them in small increments and test the system to determine if the new setting is adequate prior to further adjustment The band is the range that the integration will occur between Range of Integration Supply set pt Band ie 50 F 20 F THIS SCREEN ALLOWS ADJUSTMENT FOR THE Minimum ON OFF TIMES FOR THE ECONOMIZER This screen only appears if ON OFF economizer was provided with the unit These minimum ON and OFF times prevent the energy wheel motor from short cycling during economizer mode
23. Since the unit is only part of a complete system the airflows may momentarily change ie If a downstream damper closes This delay is intended to prevent false alarms the factory recommends that at least 30 seconds be programmed into the controller THE TIME DELAY BETWEEN THE STARTING OF THE SUPPLY AND EXHAUST FANS THAT REDUCES THE STARTUP AMP DRAW OF THE UNIT Also the exhaust fan engages first allowing the wheel to see space temperature conditions prior to the supply fan engaging This allows the energy recovery wheel the opportunity to provide maximum preconditioning of the outdoor air This also minimizes the potential of extreme outdoor air temperatures being supplied to the space prior to the cooling and or heating sections engaging PROGRAM MENU continued Wheel rotation alarm THIS SCREEN ALLOWS FOR THE USER TO CHANGE THE TIME DELAY UNTIL THE delay 030s CONTROLLER WILL SHOW AN ALARM This screen appears whether the wheel rotation alarm was provided or not If input ID3 provided there will be a wire in ID3 on the controller Similar to the Fan airflow proving switch alarm the Wheel rotation alarm delay allows time to elapse prior to the controller showing an alarm The delay prevents a false alarm from occurring if the sensor does not pickup the wheel rotation for a second or two The communications setup allows the user to program the type of BMS system Communications Setup BACnet LonWorks pcoWEB or MODBU
24. Supply Fan Proving Wheel Pressure Wheel Rotation Alarm Unit On Off Exhaust Fan Proving Occupied Unoccupied Input Dirty Filter Compressor Limit DDC Controller for Energy Recovery jer G N B2 RX GND vpc w ZS er um orir c gt S m cle gt FE Ol d Q Lol 3 J 210 gt 2 Sla z e 5 SS H G lt gt v Cp SIS At Gu D d Digital Outputs syndy uf Rx Tx I Baatz i H SI a d Lo L 24VACWhen Unit on a N noi Frost Control Enable No2 Output to Supply Fan No3 Output to Exhaust Fan cl ca 24VAC from Supply Fan Proving 3 No4 Heating Enable IG or Electric nos 1 Call For Cooling NO6 2 4 Call For Cooling c4 24VAC 5 No7 Output to Dampers c7 S an Alarm Dry Contact NCB K Example of parameter adjustment The cursor always begins in the upper left corner of the display UNIT SET POINTS __ Supply air low limit alarm Use the up and down f buttons to scroll through the display screens The when supply is less than cursor must be in the upper left corner of the display to scroll through the screens 35 0 F Alarm delay 030s Press lt 1 to move the cursor down for parameter adjustment Supply air low limit alarm Use the keys to adjust the parameter up or down Press to move the when supply is
25. T IE 60 6 VDC This screen only appears if HGRH was provided with the unit The Output and SIGNAL will provide the appropriate control of a on off or modulating hot gas reheat coil User can change the SIGNAL range if required Factory defaults are 0 10 VDC Digital Input ID1 Supply proving switch Alarm Open Status Closed The following screens show the factory defaults for each parameter Do NOT change parameters unless you are absolutely certain the parameter needs to be modified Unit will not function properly and damage may occur to the unit if the parameters do not match the contact requirements of the components WARNING THIS SCREEN DISPLAYS THE ALARM STATUS MODE OF THE SUPPLY PROVING SWITCH When the Supply proving switch alarm is triggered the fan is not seeing airflow and the unit will shutdown and alarm The Alarm parameter allows the user to select Open or Closed for the contact position that will trigger the alarm Status displays the real time status Open Closed of the digital input NOTE The controller is only monitoring the contact position Not the actual operation of the fan 13 I O SETUP MENU continued Digital Input ID2 Wheel pressure switch High pressure Closed Status Open Digital Input ID3 Wheel rotation alarm Alarm Closed Status Open Digital Input ID4 Unit ON OFF control Unit ON when Closed Status Open Digital Input ID5 Exhaust proving switch
26. V ENEE DIGITAL INPUTS PARAMETERS THIS SCREEN DISPLAYS THE CORRELATION BETWEEN THE ANALOG OUTPUT AND THE VOLTAGE SIGNAL FOR THE ENERGY RECOVERY WHEEL DO NOT ADJUST THIS SETTING This screen may relate to on off or modulating control depending upon what accessories were ordered with the unit The energy recovery wheel is factory installed and programmed THIS SCREEN DISPLAYS THE CORRELATION BETWEEN THE ANALOG OUTPUT AND THE VOLTAGE SIGNAL FOR THE HEATING IE 60 6 VDC This screen only appears if Heating was provided with the unit The Output and SIGNAL will provide the appropriate control of a hot water coil electric heater or indirect gas furnace User can change the SIGNAL range if required Factory defaults are 0 10 VDC NOTE This is where the user would adjust for a Heating Control Valve that is 2 10 VDC rather than 0 10 VDC THIS SCREEN DISPLAYS THE CORRELATION BETWEEN THE ANALOG OUTPUT AND THE VOLTAGE SIGNAL FOR THE HEATING IE 60 6 VDC This screen only appears if Chilled Water was provided with the unit The Output and SIGNAL will provide the appropriate control of a chilled water coil User can change the SIGNAL range if required Factory defaults are 0 10 VDC NOTE This is where the user would adjust for a Cooling Control Valve that is 2 10 VDC rather than 0 10 VDC THIS SCREEN DISPLAYS THE CORRELATION BETWEEN THE ANALOG OUTPUT AND THE VOLTAGE SIGNAL FOR THE HOT GAS REHEA
27. directly proportional to a 0 10 VDC signal being sent to the SCR controller in the electric heater s control center 000 0 VDC 0 kW output 100 10 VDC Maximum kW output Indirect Gas Furnace The Heater Control is directly proportional to a 0 10 VDC signal being sent to the indirect gas furnace control board Where the first stage is full ON at a 1 Heater Control Once the Heater Control reaches 50 the second stage modulates between 50 and 100 output 001 049 First stage ON Second stage OFF 050 100 First stage ON Second stage Modulating between 50 and 100 output THE USER CAN OVERRIDE THE HOT GAS REHEAT OPERATION This screen only appears if the On Off Hot Gas Reheat option was provided with the unit To manually override the Hot gas reheat loop adjust the Hot gas status from AUTO to MANUAL When the Hot Gas Reheat loop is in MANUAL mode use the arrow buttons to open or close the HGRH valve ON Open OFF Closed THE USER CAN OVERRIDE THE HOT GAS REHEAT OPERATION This screen only appears if the Modulating Hot Gas Reheat option was selected with the unit To manually override the Hot gas reheat loop adjust the Hot gas status from AUTO to MANUAL When the Hot Gas Reheat loop is in MANUAL mode press the up and down arrow to vary the Loop output The Loop output is directly proportional to a 0 10 VDC signal being sent to the HGRH controller 000 0 VDC Full Closed 100 10 VDC
28. e until Loop Output is 0 1 Stage DX Coil Loop Output displays compressor engagement as a percent 000 Compressor OFF 100 Compressor ON In a single stage DX cooling system the compressor engages when the Loop Output is 100 Once the compressor is engaged it will not disengage until the Loop Output is 0 Note Damage can occur to compressors from short cycling therefore the controller has built in time delays which are effective upon each engagement of a compressor MANUAL OVERRIDE MENU continued EES i Heater loop override Heating AUTO Loop output 000 a Se ee a ER Hot gas reheat loop override l Hot gas AUTO i Hot gas OFF GEES Toia Ee Hot gas reheat loop override Hot gas AUTO Loop output 000 GEESS EES Energy recovery wheel i preheater Preheater AUTO Preheater OFF Qa End of manual overrides THE USER CAN OVERRIDE THE HEATING OPERATION This screen only appears if a Heating option was provided with the unit To manually override the heating adjust the Heating status from AUTO to MANUAL When the Heating loop override is in MANUAL mode use the arrow buttons to vary the output Hot Water Coil The Loop Output is directly proportional to a 0 10 VDC or 2 10 VDC signal being set to the hot water valve 000 0 VDC Full Closed 100 10 VDC Full Open 000 2 VDC Full Closed 100 10 VDC Full Open Electric Heater The Loop Output is
29. g will lockout and alarm when the Status is Open TIME CLOCK MENU Access the CLOCK SETUP menu through the Main Menu Scroll through the menu screens using the ACCESS DENIED Enter Password 0000 WRONG PASSWORD CLOCK hr min sec Day of week mm dd yyyy Time Date Day Setup Press ENTER to reset the internal clocks time date amp day EE Occ Unocc Override Current Mode Occ Override Time 060min Override No EES keys IMPORTANT User must select one of the three options for the Source in the Unoccupied mode setup screen in the PROGRAM menu The Source represents the means by which Occupied and Unoccupied modes are determined Option 1 Input ID6 typically used with a remote time clock Default Option 2 BMS can be overridden by a separate input to ID6 Option 3 Internal Time Clock can be overridden by a momentary input to ID6 THIS SCREEN CAN BE LOCKED TO PREVENT TAMPERING WITH THE SETTINGS FROM THE FACTORY ACCESS IS NOT PASSWORD PROTECTED TO ALLOW QUICKER START UP To set the password go to the PROGRAM menu by pressing the 9 button Once there scroll down until you arrive at the Change Password screen The Level 1 password protects the TIME CLOCK menu THE CLock SETUP MENU ALLOWS THE USER TO ADJUST THE TIME DATE AND OCCUPIED UNOCCUPIED MODE SETTINGS User can also override the current occupied unoccupied mode for a designated period
30. if a Heating option was provided with the unit This controller uses a Proportional Integral type control The integration time programmed into the controller is to provide a smooth reaction to conditions allowing for less sporadic changes in discharge temperature To speed up reaction time decrease the integration time For slower reaction time increase the integration time When making adjustments make them in small increments and test the system to determine if the new setting is adequate prior to further adjustment The band is the range that the integration will occur between Range of Integration Supply set pt Band ie 50 F 20 F PROGRAM MENU continued Will heater be used ifor reheat during dehumidification Reheat Enable Will heater be used for reheat along with the hot gas Heater Disable Hot Gas Controller I Integration 300s THIS SCREEN ALLOWS THE USER TO ENABLE THE HEATER FOR REHEAT PROCESS This screen only appears if a Heating option was provided with the unit and the unit does NOT have hot gas reheat If it is desired that the heater be used to reheat the air off the cooling coil when in dehumidification adjust this screen so the Enable is displayed THIS SCREEN ALLOWS THE USER TO ENABLE THE HEATER TO PROVIDE ADDITIONAL REHEAT This screen only appears if Hot Gas Reheat and a Heating option was provided with the unit Setting the Heater parameter to Enable allows
31. is not functioning normally t Upanow The arrow keys allow the user to scroll through different screens and adjust Pages parameters g ky Down Arrow A In screens with adjustable parameters pressing the Enter key moves the cursor l from the upper left corner of the screen to the parameter The arrow keys can then be used to adjust the parameter Pade 3 B To move to the next parameter on the same screen press the Enter button g C To save the change press the Enter button until the cursor moves back to the upper left corner of the screen Escape Allows the user access to the Main Menu The following adjustments can be made e Unit Status e Set Points e Time Clock Setup Page 4 e Miscellaneous Information e Manual Overrides e Unit On Off e Analog amp Digital Input Output Setup Prg Allows the user access to the Program Menu NOTE If this controller needs to be interfaced with a BMS ie Lonworks BACnet or Modbus please refer to page 23 for an integration points list 24 VAC to Controller Outdoor Air Intake Temperature Sensor Supply Discharge Temperature Sensor Cold Coil Temperature Sensor Sensor B1 B2 B3 Commons Room Temperature Sensor or Digital Call for Cool Humidistat 24 VAC for Analog Outputs Analog Output to Energy Wheel Analog Heating Output HW or Electric Analog Cooling Output CW Hot Gas Reheat Analog Output
32. is wired into terminals B4 and BC4 on the controller The supply air temp will integrate SLOWLY down PI loop towards this minimum set point to maintain room temperature The supply air temp will integrate SLOWLY up PI loop towards this maximum set point to maintain room temperature THIS SCREEN DISPLAYS THE TEMPERATURE SET POINTS FOR THE COOLING COILS This screen only appears if a Cooling option was provided with the unit The Normal Mode set point is the after coil temperature the unit will maintain under standard operation If a Humidistat was provided with the unit the Dehumidify set point is the temperature the cooling coil will discharge on a call for dehumidification from a humidistat The Active set pt is the temperature that the unit is currently trying to maintain off the coil THIS SCREEN DISPLAYS THE DIFFERENTIAL SET POINT FOR THE HEATING AND COOLING MODES This screen only appears if the 7th character in the DDC Code is set to 1 meaning the Cycle on Room unoccupied mode was chosen Operation in Cycle on Room unoccupied mode requires the room sensor be wired into terminals B4 and BC4 and a night setback damper in the unit This differential acts as a hysteresis to keep the heating and cooling from cycling too often For example on a call for heating room temp set point differential 65 0 F 5 0 F 60 0 F supply fan cycles on Unit cycles off when the room temperature reaches the Unoccupied room se
33. ks g 418ZILU0U0D9 U0 W JS S aAI Oe BPOW SO4JOP 9 uo wea sKs g Bures uey Aj ddns p Duugis uey ysneyxe ssodwep Buiuedo z Aejap jeniul yo Wwa sAs 9 xopul SNS Pun L 3 ON were ng e asepa unn oef wyuensneuxaonu vaf eww wel sl some paid 20un paidnoo0 0 puewwos paidnosoun paidnoo9 wul ea oe 990Uf 990 1 0 AU zt paidnosoun een zioa al ol a jeuBis yup 0 Swa ou ynejap 00024 20ue suj BoINeg SS PPY WON uoldiosaq jeuBis SING 0 HUN pe y WOl LLd Sysomuoy d1SIN jeu ou 1PUJYA di PUJYA G8YSY NLY SNAPON 23 Warranty Greenheck warrants this equipment to be free from defects in material and workmanship for a period of one year from the purchase date The energy recovery wheel is warranted to be free from defects in material and workmanshipfor a period of five years from the purchase date Any units or parts which prove defective during the warranty period will be replaced at our option when returned to our factory transportation prepaid Motors are warranted by the motor manufacturer for a period of one year Should motors furnished by Greenheck prove defective during this period they should be returned to the nearest authorized motor service station Greenheck will not be responsible for any removal or installation costs As a result of our commitment to continuous improvement Greenheck reserves the right to change specifications without notice P GREENHECK P O Box
34. ler then the supply temperature of the unit is adjusted based on the difference between the actual room temperature reading from the room temperature sensor and the desired room temperature which is programmed into the controller refer to Room Set Point screen below With a room temperature sensor connected to the controller a BMS can override the controller and input directly the desired room set point This new desired room set point will be used for comparing with the actual room temperature To activate the BMS override temperatures refer to the Program Menu and change the Set Point Source screen to BMS Interface l Supply Air Reset i THESE PARAMETERS DICTATE THE OPERATION OF THE OUTDOOR AIR RESET Outside Supply FUNCTION IN THE CONTROLLER 060 0 F gt 072 0 F This screen does not appear when the room supply temp sensor is wired into 070 0 F gt 060 0 F terminals B4 and BC4 on the controller I P The unit monitors the outdoor air temperature and adjusts the desired supply temperature accordingly For example when the outdoor air is below 60 0 F the controller will change the Supply set pt to 72 0 F If the outdoor air is above 70 0 F the controller would change the Supply set pt to 60 0 F If the outdoor air temperature is between 60 0 F and 70 0 F the Supply discharge temperature changes according to the outdoor air reset function A visual representation of the outdoor air reset function is shown
35. of time Set the time date amp day here All three must be set reset at the same time When the cursor is in the upper left corner press up or down to return to the clock menu Reset clock Time 00 00 00 Date 00 00 00 m d y Day NA CURRENT MODE DISPLAYS WHETHER THE UNIT IS IN OCCUPIED MODE OR UNOCCUPIED MODE Occ Occupiep Unocc Unoccup ep This screen will only appear if the Occupied Unoccupied ID6 function has been set to ON in the PROGRAM menu under Binary Input Enables The controller will allow the user to override from Unoccupied to Occupied mode but not vice versa This can be performed by changing this screen to Yes or it can also be done through a momentary 24 VDC input to terminal ID6 After the Override Time expires the clock returns to the 7 day schedule The following screens only appear if Option 3 the Internal Time Clock function has been enabled in the Program Menu EE EE e EES i Enable Occ Unocc Mon Yes Tue Yes Fri Yes Wed Yes Thu Yes Sat Yes Sun Yes EES Occupied Unoccup Mon 06 00 18 00 Tue 06 00 18 00 Wed 06 00 18 00 EE Occupied Unoccup 1 Thu 06 00 18 00 Fri 06 00 18 00 1 ke THIS SCREEN ALLOWS THE USER TO ENABLE DISABLE UNOCCUPIED MODE FOR EACH DAY OF THE WEEK Selecting No means the unit will operate in an Occupied mode only Selecting Yes means the unit will operate in an Occupied mode and an Unoccupied mode
36. ontroller The controller then overrides the outdoor air temperature discharge control and sends the supply temperature set point to the supply reset minimum temperature Max cooling 55 F adj in SET POINTS menu I O SETUP MENU continued B5 Dehumidify 0N OFF Input Status Open r I I GEES THIS SCREEN DISPLAYS THE STATUS OF THE DEHUMIDIFICATION MODE This screen only appears if there is a humidistat wired to terminals B5 and BC5 on the controller When the Input Status is Open there is no call for dehumidification When the Input Status is Closed the cold coil set point is reset for further dehumidification ANALOG OUTPUTS PARAMETERS The Analog Output screens allow the user to adjust the analog outputs for the energy recovery wheel heating cooling and hot gas reheat operation The factory defaults are provided in the screens shown and are designed to operate with any factory supplied components Chilled water valves hot water valves DX distributors or HGRH valves provided by others may require adjustments to the following screens to properly operate the components Analog output Y1 Energy Recovery Wheel 0 gt 100 Output SIGNAL 00 0V 10 0V i E A EE E E E E Analog output Y2 Heater Output SIGNAL 00 0V GEES Analog output Y3 Cooling Output 0 gt 100 SIGNAL 00 0V 10 0V EES EES Analog output Y4 Hot Gas Reheat Output 0 gt 100 SIGNAL 00 0V 10 0
37. r output and is directly proportional to a 0 10 VDC signal provided by the discharge temperature sensor To override MANUAL OVERRIDE menu gt Heating Loop Override Electric Heater The Heater Control is directly proportional to a 0 10 VDC signal being sent to the SCR controller in the electric heater s control center 000 0VDC 0 kW output 100 10 VDC Maximum kW output Indirect Gas Furnace The Heater Control is directly proportional to a 0 10 VDC signal being sent to the indirect gas furnace control board The first stage is full ON ata 1 Heater Control Once the Heater Control reaches 50 the second stage modulates between 50 and 100 output 001 049 First stage ON Second stage OFF 050 100 First stage ON Second stage Modulating between 50 and 100 output Hot Water Heater The heating control valve supplied by others can either be 0 10 VDC or 2 10 VDC depending upon what valve is installed The user may have to adjust the I O SETUP menu so that a 0 100 heating correlates with a 2 10 VDC signal 0 10 VDC is default To adjust I O SETUP menu gt Analog Output Y2 THE UNIT CONTAINS A WHEEL PRESSURE DROP SENSOR TO INDICATE WHETHER THE PRESSURE ACROSS THE WHEEL IS NoRMAL op Hien This screen only appears if a frost control method was provided A status of High is an indication of frost accumulation The pressure set point is adjustable on the wheel pressure switch THIS
38. rm parameter allows the user to select Open or Closed for the contact position that will trigger the alarm Status displays the real time status open closed of the digital input THIS SCREEN DISPLAYS THE ALARM STATUS OF THE OccuPIED UNoccUPIED OPERATION While in Input ID6 mode refer to PROGRAM menu the input from ID6 will send the unit into occupied or unoccupied mode If in BMS or Time Clock mode a 24 VDC input from ID6 will override the system operation from unoccupied refer to TIME CLOCK menu for actual override time period to occupied but not occupied to unoccupied mode for a specific override The Occupied when parameter allows the user to select Open or Closed for the contact position that will indicate Occupied operation Status displays the real time status open closed of the digital input THIS SCREEN DISPLAYS THE ALARM STATUS MODE OF THE DIRTY FILTER SWITCH The Alarm parameter allows the user to select Open or Closed for the contact position that will trigger the alarm Status displays the real time status open closed of the digital input THIS SCREEN DISPLAYS THE ALARM STATUS MODE OF THE COMPRESSORS This screen only appears if DX cooling was provided in the unit The Alarm parameter allows the user to select Open or Closed for the contact position that will trigger the alarm Status displays the real time status open closed of the digital input Based on factory defaults the DX stagin
39. s short cycling of the coil which allows for better oil distribution through the DX system Use caution when altering the on off time as damage may occur to the system if set too low Consult the factory for information THIS SCREEN DISPLAYS THE INTEGRATION TIME AND TEMPERATURE RANGE FOR I Supply Reset Control THE PI CONTROL OF THE SuPPLY RESET TEMPERATURE These parameters may be adjusted if necessary This screen only appears if a Room Supply Temp sensor is wired between B4 and BC4 on the controller This controller uses a Proportional Integral type control The integration time programmed into the controller is to provide a smooth reaction to conditions allowing for less sporadic changes in discharge temperature To speed up reaction time decrease the integration time For slower reaction time increase the integration time When making adjustments make them in small increments and test the system to determine if the new setting is adequate prior to further adjustment The band is the range that the integration will occur between Range of Integration Room set pt Band ie 72 F 20 F Integration 300S Band 20 F 1 I D 20 PROGRAM MENU continued Time delay between heating cooling amp or economizer modes Delay 600s Unoccupied mode setup Type Cycle Supply Fan Source Input ID6 Allow the dampers to open for 10 seconds before starting the fans Fan airflow proving alarm dela
40. t The purpose of having minimum ON OFF times is to prevent the compressor from short cycling Do not change the defaults shown without consulting the factory THIS SCREEN DISPLAYS THE DELAY TIME BETWEEN STAGES ALONG WITH THE I i Compressor Setu p H LEAD LAG TIME PROGRAMMED FOR THE COMPRESSORS l i Between stages 240s i l Lead Lag YES Lead Lag Time 100hrs This screen only appears if 2 stage DX cooling 2 compressors was provided with the unit Between Stages is the time delay in seconds between the first and second compressors engaging Lead Lag governs whether the stages will reverse operation order after some period of time designated by the Lead Lag Time setting Factory Default YES 100hrs The Lead Lag Time is the duration of time the unit will operate before reversing the DX staging In other words based on the factory default Compressor 1 will engage before Compressor 2 for 100 hours of operation After 100 hours the order reverses and Compressor 2 will engage first This cycle will continue indefinitely THIS SCREEN SHOWS WHEN EACH COMPRESSOR IN A SINGLE OR TWO STAGE DX UNIT WILL ENGAGE AND DISENGAGE This screen only appears if DX cooling was provided with the unit Each compressor will engage and disengage based upon the percentage of cooling that the user inputs refer to Cooling Loop Override screen on the MANUAL OVERRIDE menu i Stage1 ON 050 OFF00 Stage2 0N 100 OFF50
41. t point 65 0 F adjustable For cooling the differential is added to the Unoccupied room set point 85 0 F 5 0 F 90 0 F to cycle supply fan on Unit cycles off when the room temperature reaches Unoccupied room set point 85 0 F THIS SCREEN DISPLAYS THE ROOM SET POINTS WHICH DICTATE THE UNIT HEATING AND COOLING OPERATION DURING UNOCCUPIED MODE This screen only appears if the Cycle on Room unoccupied mode was chosen for the unit A room sensor temp must be wired into terminals B4 and BC4 on the controller and the unit must have a night setback damper In Unoccupied Mode when the temperature falls below the room Heating set point hysteresis 5 F the supply fan and unit heating will turn on Unit will discharge the Supply Max temperature per the Supply Reset Limits screen above until the room set point is satisfied Unit will then shut down In Unoccupied Mode when the temperature rises above the Cooling set point hysteresis 5 F the supply fan and unit cooling will turn on Unit will discharge the Supply Min temperature per the Supply Reset Limits screen above until the room temperature set point is satisfied Unit will then shut down THIS CONTROLLER WILL LOCK THE HEATING SECTION OFF WHEN THE OUTDOOR AIR TEMPERATURE IS ABOVE THE SET POINT FACTORY DEFAULT 70 F This screen only appears if a Heating option was provided with the unit A Hysteresis of 2 F helps to avoid short cycling of the hea
42. ter The hysteresis is similar to a deadband above and below the Lockout heater set point Example If Lockout 70 F heating is locked out for outside air conditions above 72 F and enabled below 68 F SET POINTS MENU continued Cooling Lockout Lockout dehumidific ation until outside air is 10 0 F above cold coil set point i Economizer Lockout Lockout econo when outside air lt 40 0 F Hysteresis 02 0 F Supply air low limit alarm when supply is less than 35 0 F Alarm delay 300s i Defrost i Allow wheel defrost mode when outside ris less than 05 0 F End of Set Points A Lockout cooling when outside air lt 55 0 F Hysteresis 02 0 F THIS CONTROLLER WILL LOCK THE COOLING SECTION OFF WHEN THE OUTDOOR AIR TEMPERATURE IS BELOW THE COOLING LOCKOUT SET POINT FACTORY DEFAULT 55 F This screen will only appear if Cooling was provided with the unit There is a built in hysteresis of 2 F which prevents the compressors from short cycling The hysteresis is similar to a deadband above and below the lockout set point Example If Lockout 55 F cooling is locked out below 53 F and end enabled above 57 F outside air temp THIS SCREEN DISPLAYS THE TEMPERATURE DIFFERENCE AT WHICH THE DEHUMIDIFICATION ON THE UNIT IS LOCKED OUT FACTORY DEFAULT 10 F This screen will only appear if cooling was provided with the unit This setting prevents the unit from opera
43. th fans will be On There are three modes in which one fan may be Off while the other is On 1 Start up of the unit 2 Timed exhaust frost control and 3 Unoccupied 100 return air mode Other than these three modes if one fan is Off and the other is On there may be a problem Exhaust Fan On ENERGY RECOVERY WHEEL OPERATION IS DISPLAYED AS A PERCENT STATUS LINE If the unit does not contain a VFD on the wheel motor then 0 OFF 100 ON If Energy Recovery the unit contains a VFD to modulate the wheel speed for frost control or economizer Wheel 000 Speed operation this screen will display the percentage directly proportional to the 0 10 VDC signal being sent to the wheel VFD 0 VDC 000 10 VDC 100 To override MANUAL OVERRIDE menu gt Energy Recovery Wheel Override a OE a a nS ee NT i STATUS LINE Cooling Control 000 THIS SCREEN DISPLAYS THE COOLING CONTROL AS A PERCENTAGE This screen only appears if a cooling option is provided Chilled Water Coil The Loop Output is directly proportional to a 0 10 VDC signal 000 0 VDC Full Closed 100 10 VDC Full Open 000 2 VDC Full Closed 100 10 VDC Full Open L Compressor The cooling control valve can either be 0 10 VDC or 2 10 VDC depending upon the valve installed The user may need to adjust the I O SETUP menu so that 0 100 cooling correlates with a 2 10 VDC signal 0 10 VDC is default To adjust I
44. the Heating option to provide additional reheat above and beyond what the Hot Gas Reheat can provide This would typically only be used if the discharge temperature off the Hot Gas Reheat coil was too cold for the space THIS SCREEN DISPLAYS THE INTEGRATION TIME FOR THE PI CONTROL OF THE HOT GAS REHEAT MODE AND THE TEMPERATURE BAND AROUND A SET POINT These parameters may be adjusted if necessary This screen only appears if a Hot Gas Reheat option was provided with the unit This controller uses a Proportional Integral type control The integration time programmed into the controller is to provide a smooth reaction to conditions allowing for less sporadic changes in discharge temperature To speed up reaction time decrease the integration time For slower reaction time increase the integration time When making adjustments make them in small increments and test the system to determine if the new setting is adequate prior to further adjustment The band is the range that the integration will occur between Range of Integration Supply set pt Band ie 50 F 20 F Band 20 F I 1 D THIS SCREEN ALLOWS THE USER TO ADJUST THE MINIMUM ON OFF TIME FOR THE Hot Gas reheat coil HOT GAS REHEAT COIL minimum on off time 10 minutes This screen only appears if ON OFF Hot Gas Reheat was provided with the unit This is the minimum on off time operation for the Hot Gas Reheat coil The factory programmed time prevent
45. ting in dehumidification mode when outdoor air conditions are relatively cool For example if the cold coil set point is 55 F dehumidification mode cannot operate until the outdoor air is at least 65 F Economizer LOCKOUT PREVENTS THE UNIT FROM GOING INTO ECONOMIZER MODE WHEN OUTDOOR AIR CONDITIONS ARE TOO COLD This screen only appears if economizer was provided with the unit The lockout prevents outdoor air from 1 entering the space at too cold of a temperature or 2 entering heating and cooling coils at conditions that could freeze the coils Built in hysteresis of 2 F The hysteresis is similar to a deadband above and below the lockout set point Example If Lockout 40 F economizer is locked out below 38 F and enabled above 42 F outside air temp THIS SCREEN DISPLAYS WHAT THE LOW TEMPERATURE LIMIT IS FOR THE UNIT If the unit supply discharge temperature falls below Supply Air Low Limit set point factory default 35F for a period of time factory default 300 sec the unit will shut down and an alarm will be signaled The purpose of the Discharge Freeze Protection is to protect the building and contents from low temperature supply air It is NOT designed to protect the Energy Recovery unit If the Energy Recovery unit does not have CW or HW coils has only no heat IG heat electric heat no cooling or Dx cooling it should not need additional protection from freezing If the Energy Recovery unit does have CW or
46. y 030s inputs ID1 amp ID Time delay between starting of supply amp exhaust fans Fan delay 005s THIS SCREEN ALLOWS FOR THE USER TO ADJUST THE DELAY TIME BETWEEN MODES This time delay prevents short cycling between heating cooling and or economizer modes THIS SCREEN DISPLAYS WHAT THE UNIT WILL DO IN UNOCCUPIED MODE Setting the Type to Cycle Supply Fan will engage the unit to maintain space temperature However the room suppy temp sensor must be wired between B4 and BC4 on the controller If desired the Source offers three options that can be used to operate unoccupied occupied modes Option 1 Input ID6 typically used with a remote time clock Default Option 2 BMS can be overridden by a separate input to ID6 Option 3 Internal Time Clock can be overridden by a separate input to ID6 Without the room supply temp sensor the Type will say Unit Off and thus the unit will be off during unoccupied mode THIS SCREEN ALLOWS FOR THE USER TO PROGRAM THE TIME FOR THE DAMPERS TO OPEN PRIOR TO THE FAN ENGAGING This allows for a smoother startup of the system and prevents the fans from having to overcome the higher pressures when dampers are just beginning to open Since dampers have a slow reaction time the default is 10 seconds which allows enough time for them to fully open THIS SCREEN ALLOWS FOR THE USER TO DELAY AN ALARM SIGNAL FROM THE FAN AIRFLOW PROVING SWITCH WHICH SHUTS THE UNIT DOWN
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