Manual - Munters
Contents
1. 7a Ae AE gt Poa be gt gt 2 A Ei H E fe LED MEANING w Ea ES k E W ae gt STAGES 1 2 FLASHES WHEN STAGE 1 FANS ARE ON TURNS ON WHEN STAGE 2 re FANS ARE ON S mE 79 o 3 FLASHES WHEN STAGE 3 FANS ARE ON TURNS ON WHEN STAGE 4 3 2 gt 2 gt 4116 8 WV STAGES 3 4 i 2 S55 55 o FANS ARE ON AGIFES D a D m STAGE 5 URNS ON WHEN STAGE 5 FANS ARE ON 5 2 E g U m aL 2 Sy te ER URNS ON WHEN STAGE 6 FANS OR HEATING UNITS ARE ON z gt fl o52 opg E p A onz 329 Q STAGE 7 m Wi m 4S med HEATER A TURNS ON WHEN STAGE 6 FANS OR HEATING UNITS ARE ON ee o J gt f mS ma gt gt y lt 4 y zm Ex P TEMP FLASHES WHEN THE TEMPERATURE CURVE IS ACTIVATED a S a Z o 7 fey CURVE TURNS ON WHEN THE MINIMUM VENTILATION SPEED CURVE IS 7 222 m ALSO ON z m c uv 2 3 z DEF PROBE URNS ON WHEN A DEFECTIVE PROBE IS DETECTED 4 v B I z n m 3 A ALARM TURNS ON WHEN AN ALARM IS DETECTED gt gt SE D c 2 a m D m m ko ao 5 2 ON p l a INTERNAL SWITCHES 2 BEPo emas 123 4 5 67 8 9 101112 BIE ppa C gt IAQ ou a 1 O4 a i r T JA z cao The internal switches are located on the inside of the front cover When 3 mm o qz 9 the controller is shipped from the factory all the switches are set to OFF a 4 z z T 9 Pe OFF NT D Qa amp 5 l a 0 wm 3 oJ XS eg O lt ss 1 OD ees LOCKED PARAMETERS 2 a gg EEL PARAMETERS 2 no cit o 22. desired incorrectly adjusted time on and time off correctly The cooling The wiring is Correct the wiring Be sure fans are not incorrect two different lines are con running nected to each fan motor or heater the controller s output or line L1 should be combined The heaters are not turning on 48 QM 1334 rev 02 The stage s fuse is open with another line N for 115V or L2 for 230V to activate the fan motor or heater Also be sure the stage s COMMON is supplied by line L1 Replace the fuse ST 5124 PROBLEM CAUSE SOLUTION ET The cooling The display board Be sure the cable is firmly fans are not interconnect cable plugged in running is not properly plugged into the or power supply board The heaters are Check if the motor or heater is not turning on defective by connecting it to an alternate power supply If it still is not operating replace the motor or heater The fan motor or heater is defective continued The controller is Listen to see if there is a defective clicking sound when the stage or heater pilot light turns on If there is no clicking sound contact your distributor to repair the controller QM 1334 rev 02 49 TECHNICAL SPECIFICATIONS Supply 115 230 VAC 18 8 60 Hz L1 same phases as Stage 1 overload and overvoltage protection fuse F11 1A fast blow 12 VDC for AC back up supply can activate stages 2 through 7if
3. Time Off 0 seconds seconds A x 0 5 to 20 F Bandwidth 3 0 F 1 7 C 0 3 to 11 1 C 0 5 to 20 F Stage 2 Starting Temp 80 F 26 7 C 0 3 o 11 1 C from Bandwidth 0 5 to 20 F i 7 0 3 o 11 1 C from Stage 3 Starting Temp 82 F 27 8 C Stage 2 Starting Temp 0 o 20 F g y 0 3 o 11 1 C from Stage 4 Starting Temp 84 F 28 9 C Stage 3 Starting Temp 0 o 20 F i a 0 3 o 11 1 C from Stage 5 Starting Temp 86 F 30 0 C Stage 4 Starting Temp 0 0 20 F y y 0 3 o 11 1 C from Stage 6 Starting Temp 89 F 31 7 C Stage 5 Starting Temp 0 o 20 F i A 0 3 o 11 1 C from Stage 7 Starting Temp 90 F 32 2 C Stage 6 Starting Temp 0 5 to 20 F Starting 0 3 o 11 1 C from Temperature POPE 82 BFC previous stage s Starting Temp Mist Time On 1 minute 0 to 60 minutes by increments of 1 Time Off 0 minutes minute 72 5 F 1 0 to 20 F Heater A Starting Temp 22 5 C 0 3 to 11 1 C from i Off Temperature 0 5 to 20 F 7 70 5 F 0 3 to 11 1 C from Heater B Starting Temp 21 4 C Heater A Starting Temp 0 5 to 20 F Heater Off Temperature 74 5 F 23 6 C 0 3 to 11 1 C from Set Point Low Temperature 65 F 18 3 C 0 5 o 40 F Alarm 0 3 to 22 2 C from High Temperature 87 F 30 6 C Set Point QM 1334 rev 02 51 ST 5124 NOTES i These initial parameter settings will not be retained in the controller s me
4. To exit test mode M Turn the selector knob to the ROOM TEMPERATURE position The current room temperature is displayed M Press and hold the push button for 5 seconds NOTE If no user activity is recorded after 5 minutes in test mode the controller resumes normal operation QM 1334 rev 02 43 ALARM SETTINGS The controller sets off an alarm in the case of a power failure a fault in the supply circuit or a high or low temperature Temperature alarms are defined according to the set point as shown in the diagram below Room Temperature Low Alarm Temperature High Temperature Alarm Ts High Alarm Temperature Time a Adjusting the Alarm Settings The high and low alarm settings are specified as a temperature value The high alarm temperature ranges from set point 0 5 F to set point 40 F The low alarm temperature ranges from set point 40 F to set point 0 5 F E Set the selection knob to ALARM LO HIGH The current low alarm temperature flashes on the display alternating with the word LO E Use the adjustment knob to set the low alarm temperature to the desired value ele Maes PROBE TEMP ALARM LO HIGH Gita SET POINT TEMP CURVE id wy MINIMUM SPEED CURVE Pigg STRT gt TIMER fae TEMP a BLM START TA BANDWIDTH Pees TEMP GE svantreme STARTTEMP RASS STAGE 3 START TEMP E Press the push button The current
5. ii Initially only probe one is activated iii At least one probe must be activated at all times Fal Viewing Minimum Maximum Temperatures The minimum and maximum temperatures are the lowest and highest tem perature values recorded since the last reset Maximum and minimum temperatures values are recorded for the average room temperature as well as for individual probe temperatures 16 QM 1334 rev 02 ST 5124 E Set the selection knob to ROOM TEMPERATURE PROBE TEMP The room temperature is displayed Turn the adjustment knob clockwise by one notch The minimum temperature is displayed alternating with the letters Lo Turn the adjustment knob clockwise one notch further The maxi mum temperature is displayed alternating with the letters Hi M Turn the adjustment knob clockwise a third notch The room tem perature is displayed again For each individual probe press the push button The temperature reading from probe x is displayed alternating with the letters Pr x and the on off state of the probe Turn the adjustment knob clockwise by one notch The minimum is displayed alternating with the letters Lo Turn the adjustment knob clockwise one notch further The maximum temperature is displayed alternating with the letters Hi Turn the adjustment knob clockwise a third notch The probe tem perature is displayed again For each additional probe press the push but
6. 1334 rev 02 21 ST 5124 VENTILATION SETTINGS 3 Viewing Current Set Point and Day Number COOLING OPERATION The ST 5124 controls one stage of variable speed fans Stage 1 four stages of constant speed fans Stages 2 5 and two optional stages of constant speed fans Stages 6 amp 7 When the temperature curve is activated the current temperature set point and day number can be viewed at any time The current day number can also be adjusted in order to move forward or backward on the temperature curve Temp Start Temp Start Temp StartTemp Start Temp StartTemp Start Temp Stage 2 Room E Setthe selection knob to SET POINT TEMP CURVE The current temperature set point is displayed 1 5 F Stage 7 E Press the push button The current day number is displayed alternating with the letters cur day Stage 6 M Use the adjustment knob to set the day number to the desired value Stage 5 4 Deactivating the Temperature Curve Stage 4 E Set the selection knob to SET POINT TEMP CURVE The current temperature set point is displayed Stage 3 M Press the push button to display the points of the curve actually de fined until the word ON appears fourteen clicks E Turn the adjustment knob counterclockwise one notch The word OFF flashes on the display and the Temperature Curve Pilot Light turns off indicating that the temperature curve is now deactivated Bandwidth Stage 1 Temperature Set P
7. NOTE If the room temperature falls below the threshold value given in Table 1 the fans will begin to run at the minimum speed specified for the first point of the curve and will continue to do so as long as the room temperature remains below the set point When the room temperature rises above the set point the fans will return to the current minimum speed calculated according to the minimum speed curve 32 QM 1334 rev 02 ST 5124 Table 1 STAGE 7 OPERATION THRESHOLD VALUE Cooling Set Point 5 0 F 2 8 C Heating Heater A Starting Temperature 5 0 F 2 8 C Interaction Between the Temperature Curve and the Mini mum Speed Curve s The minimum speed curve can be activated only if the temperature curve is already activated 7 All points of the minimum speed curve other than the first one are automatically given day numbers identical to those specified for the temperature curve Only the first point of the minimum speed curve has an adjustable day number This day number must be greater or equal to the day number specified for the first point of the temperature curve and less than the day number specified for the second point of the temperature curve see example 1 EXAMPLE 1 TEMPERATURE CURVE MINIMUM SPEED CURVE POINT 1 d5 d5 to d19 adjustable POINT 2 d20 d20 not adjustable QM 1334 rev 02 33 ST 5124 When the minimum speed curve is activated it will effecti
8. activates when current is cut off at its input whereas the other activates when currentis supplied atits input Foran alarm of the first type use the NO terminal as shown on the wiring diagram Foran alarm of the second type use the NC terminal ALL WIRING MUST BE DONE BY AN AUTHORIZED ELECTRICIAN AND MUST COMPLY WITH APPLICABLE CODES LAWS AND REGULATIONS BE SURE POWERIS OFF BEFORE DOING ANY WIRING TO AVOID ELECTRICAL SHOCKS AND EQUIPMENT DAM 8 QM 1334 rev 02 ST 5124 MOTOR TYPES The relationship between the voltage supplied to a motor and its operating speed is described by a motor curve This curve varies with the make and capacity of the motor The various motors available in the industry have been divided into five categories and the controller has been programmed with a different motor curve for each of these categories To ensure that the controller supplies the correct voltages an appropriate curve must be selected for Stage 1 according to the type of fan motors used see table on following page Selecting a Motor Type Refer to the list of motors on the following page to determine which type number 1 to 5 is appropriate for the motors used M Set the selection knob to STAGE 1 BANDWIDTH The ee er Sis PROBE TEMP Lommen Stage 1 bandwidth flashes on the 5h g SELPOINTTEMP CURVE OFF TEMP y MINIMUM SPEED CURVE display Bragg START TIMER z es BANDWIDTH Press the push button th
9. is the temperature at which the Stage 7 fans start running see the diagram above The hysteresis is fixed at 1 5 F and determines when the fans return to a stop When this value is adjusted all the starting values for consecutive stages are adjusted by the same amount The difference between the starting temperature and the Stage 6 starting temperature can go from 0 5 F to 20 0 F 0 3 C to 11 1 C M Set the selection knob to STAGE 7 START TEMP The current starting temperature flashes on the display M Use the adjustment knob to adjust the temperature to the desired value QM 1334 rev 02 31 ST 5124 MINIMUM VENTILATION SPEED CURVE The user can define a minimum ventilation speed curve to adjust the Stage 1 minimum speed automatically over a given time period Each curve is defined by six points Each point specifies a day number and a fan speed for that day Once the points are defined the minimum speed curve must be activated When the minimum speed curve is activated the controller adjusts the Stage 1 minimum speed every hour in a linear fashion be tween two consecutive points When the last point of the curve is reached the curve is deactivated The controller maintains the minimum speed specified for this point until the curve is reactivated or until a new single minimum speed is specified using the first method Temperature or Speed Minimum Speed Curve i Temperature Curve d4d10 d25 d35 d50 d70 d80 Days
10. supplied with DC back up voltage Stage 1 Variable output 60 Hz 10A FAN 3 4 HP 115 VAC 1 5 HP 230VAC fuse F1 15A slow blow Stage 2 ON OFF output 115 230 VAC 60 Hz 30VDC 6A FAN 10A RES fuse F2 15A slow blow Stage 3 ON OFF output 115 230 VAC 60 Hz 30VDC 6BAFAN 10A RES fuse F3 15A slow blow Stage 4 ON OFF output 115 230 VAC 60 Hz 30VDC GAFAN 10A RES fuse F4 15A slow blow Stage 5 ON OFF output 115 230 VAC 60 Hz 30VDC 6GAFAN 10A RES fuse F5 15A slow blow Stage6 ON OFF output 115 230 VAC 60 Hz 30VDC 6AFAN 10A RES heating or cooling fuse F6 15A slow blow Stage 7 ON OFF output 115 230 VAC 60 Hz 30VDC 6AFAN 10A RES heating or cooling fuse F7 15A slow blow Alarm ON OFF output 115 230 VAC 60 Hz 30VDC 3A fuse F8 3A slow blow Probes Low voltage lt 5V isolated from the supply Operating range 40 0 to 120 0 F 40 0 to 48 9 C Accuracy 1 8 F 1 C between 41 and 95 F 5 and 35 C Enclosure ABS moisture and dust tight The room temperature where the controller is located MUST ALWAYS REMAIN BETWEEN 32 AND 104 F 0 AND 40 C 50 QM 1334 rev 02 FACTORY SETTINGS FACTORY RANGE OF PARAMETER SETTING VALUES y f 40 to 99 9 F Temperature Set Point 75 F 23 9 C 40 to 37 7 C Minimum Speed 40 10 to 100 Time On 15 seconds 0 to 900 seconds by Stage 1 increments of 15
11. 1 5 F and determines when the fans return to a stop When this value is adjusted all the starting values for consecutive stages are adjusted by the same amount The difference between the starting temperature and the bandwidth stage 1 can go from 0 5 F to 20 0 F 0 3 C to 11 1 C Note that if the stage 2 is also used in timer mode internal switch 6 to ON the stage 2 starting temperature is the temperature at which the timer returns to a stop M Set the selection knob to STAGE 2 START TEMP The current starting temperature flashes on the display M Use the adjustment knob to adjust the temperature to the desired value 28 QM1334 rev 02 ST 5124 Ei Adjusting the Stage 2 Timer Temperature If the stage 2 uses the timer mode internal switch 6 to ON the stage 2 timer temperature is the temperature at which the timer starts running The timer temperature for the stage 2 timer can be set from 0 to 20 F 0 0 C to 11 1 C below the stage 2 starting temperature M Set the selection knob to STAGE 2 START TEMP The current starting temperature flashes on the display E Press the push button once The timer temperature flashes on the display alternating with the letters Ti E Use the adjustment knob to adjust the temperature to the desired value IEJ Adjusting the Stage 2 Time On and Time Off If the stage 2 uses the timer mode internal switch 6 to ON the time On and Time Off must be set by the user
12. M Set the selection knob to STAGE 2 START TEMP The current starting temperature flashes on the display Press the push button twice The Time On flashes on the display alternating with the letters ON Use the adjustment knob to adjust the Time On to the desired value Press the push button The Time Off flashes on the display alternating with the letters OFF E Use the adjustment knob to adjust the Time Off to the desired value QM 1334 rev 02 29 ST 5124 a Adjusting the Stage 3 Starting Temperature The Stage 3 starting temperature is the temperature at which the Stage 3 fans start running see the diagram above The hysteresis is fixed at 1 5 F and determines when the fans return to a stop When this value is adjusted all the starting values for consecutive stages are adjusted by the same amount The difference between the starting temperature and the Stage 2 starting temperature can go from 0 5 F to 20 0 F 0 3 C to 11 1 C M Set the selection knob to STAGE 3 START TEMP The current starting temperature flashes on the display E Use the adjustment knob to adjust the temperature to the desired value Gi Adjusting the Stage 4 and 5 Starting Temperatures The Stage 4 and 5 starting temperatures are the temperatures at which the Stage 4 and 5 fans respectively start running see the diagram above The hysteresis is fixed at 1 5 F and determines when the fans return to a stop When one of these
13. Q iS S9 FS LBS ESS 0 3a FAHRENHEIT DEGREES CELSIUS DEGREES al 3 0 2 5 SO ST m e 52 SOE Oe Se ae SS 3 O55 NO HEATING STAGES HEATING STAGES nC z G Dm NY 1 HEATER 2 HEATERS 77 wa gt D J STAGED MIST FLOATING MIST 6 STAGE 2 WITHOUT TIMER STAGE 2 WITH TIMER 6 QM 1334 rev 02 QM 1334 rev 02 7 INSTALLATION MOUNTING INSTRUCTIONS Open the latch and lift the cover Remove the black caps located on each of the four mounting holes Mount the enclosure on the wall using four screws Be sure the electrical Knockouts are at the bottom of the enclosure in order to prevent water from entering the controller Insert the screws in the mounting holes and tighten Fasten the four black caps provided with the controller onto the four mounting holes The enclosure must be mounted in a location that will allow the cover to be completely opened right up against the wall CONNECTIONS Toconnectthe controller refer to the wiring diagram enclosed with this user s manual E Set the voltage switch to the appropriate voltage M Use the electrical knockouts provided at the bottom of the enclosure Do not make additional holes in the enclosure particularly on the top of the enclosure when using a SL 1400 communication board E For the heating stages it may be necessary to install a transformer in order to supply the appropriate voltage to the heating unit ALARM CONNECTION There are two types of alarms on the market One type
14. Temperature Controller oT 5124 USER S MANUAL The Ventilation System Experts aerotech Second Functions Stages 1 2 Stages 3 4 Push to Set Stage 5 GEG Ges PROBE TEMP Stage 6 Heater B j Stage 7 Heater A ALARM LO HIGH STAGE 1 _ SET POINT TEMP CURVE Temp Curve lt OFFTEMP w MINIMUM SPEED CURVE Def Probe visage START a gt TIMER Alarm HEATER A Meg a SI START paca pe peti HEATER B TEMP SE STAATTEMP leans START TEMP SETTINGS AEROTECH INC Mason Mi 48854 USA Aerotech Inc FORM 1334 4215 Legion Dr Mason MI 48854 1036 USA June 2001 Ph 517 676 7070 Fax 517 676 7078 TABLE OF CONTENTS Page PRECAUTIONS ecstecccieceveceienecisiniiaiaaia anecdote FEATURES aaae aae e ioatea darasidan iaaea 4 LOCATION OF THE CONTROLS c ceeeeeeeeeeeeeeeeeeeeeees 6 Controller Status LEdS 0 0 0 0 cece eeeeeeeeeeeeeeteeeeeeeeeeeeeeeeees 7 Internal Switches ccccscceeeececeeeeeseseeseseeeeeeeesenaneeaaees 7 DNS TAL TEA THON ia ss saci E T 8 Mounting Instructions ccccccceeceeceeeeeeeeeeeeeeeeeeeeeeaeeaeeee 8 Connec S a a r oy E E OE EAE 8 M t rc mes T a a a N 9 Heating Cooling Option nnseeneeeeaaaaaaannnnnnnenennnnnnn nennen 11 Temperature Probes cccccccccccccsssnessssssssseeeeeeeeeeeees 11 CHANGING THE PARAMETER SETTINGS 0008 14 The Meaning of a Flashing D
15. as a back up ther mostat on at least one cooling stage refer to the wiring diagram enclosed with this user s manual to connect the ther mostat Although fuses at the input and outputs of the controller protect its circuits in case of an overload or overvoltage we recommend installing an additional protection device on the supply circuit as well as an external relay on all ON OFF sta ges to prolong the life of the controller The room temperature where the controller is located MUST ALWAYS REMAIN BETWEEN 32 F AND 104 F 0 C TO 40 C To avoid exposing the controller to harmful gases or exces sive humidity it is preferable to install it in a corridor DO NOT SPRAY WATER ON THE CONTROLLER FORCUSTOMERUSE Enter below the serial number located on the side of the controller and retain this information for future reference Model number __ ST 5124 Serial number Date installed QM 1334 rev 02 3 FEATURES The ST 5124 is an electronic device used for environmental control in live stock buildings It allows the user to maintain a specified target tempera ture by controlling the operation of ventilation and heating equipment One stage of variable speed cooling fans can be connected to the controller as well as four stages of constant speed fans and two stages of either con stant speed fans or heating units In addition the second stage can also operate in a timer mode and the last cooling stage can be configure
16. d as a mist cooling stage The main features of the ST 5124 are as follows THREE DIGIT DISPLAY Athree digit display provides a high level of accuracy allowing the user to specify a temperature to within one tenth of a degree in Fahrenheit or Cel sius units PILOT LIGHTS Pilot lights indicating the state of outputs allow the user to monitor the operation of the system without having to enter the building MINIMUM VENTILATION CYCLE When ventilation is not required for cooling the first stage fans can be oper ated either continously or intermittently to reduce the level of humidity and supply oxygen to the room TEMPERATURE AND MINIMUM VENTILATION SPEED CURVES The controller can be set to automatically change the temperature set point and the minimum ventilation speed over a given period of time in accordance with the user s requirements by specifying a temperature curve and a mini mum ventilation speed curve with up to six different points each CHOICE OF FIVE MOTOR CURVES The variation in motor speed resulting from a change in voltage will depend on the make and capacity of the motor In order to achieve a high degree of compatibility between controller and motor the user can choose from among five different motor curves thus ensuring that the correct voltage is supplied 4 QM 1334 rev 02 ST 5124 FULL SPEED FAN START UP In order to overcome the inertia of the ventilation system components and de ice the fan blad
17. day number to the desired value a Press the push button once again The current temperature set point is displayed alternating with the word set M Using the adjustment knob adjust the set point to the desired value Once the six points of the curve have been specified activate the curve as explained below NOTE Make sure the temperature curve is deactivated before specifying new points see below 20 QM1334 rev 02 ST 5124 2 Activating the Temperature Curve If ou have just finished specifying the points on the curve Press the push button once again The word OFF flashes on the display Turn the adjustment knob clockwise one notch The word ON flashes on the display and the Temperature Curve Pilot Light flashes indicat ing that the temperature curve is now activated Set the selection knob to ROOM TEMPERATURE If you have previously defined the points on the curve Set the selection knob to SET POINT TEMP CURVE The current value of the temperature set point flashes on the display Press the push button The word OFF flashes on the display Press the push button to display the points of the curve currently defined until the word OFF appears thirteen clicks Turn the adjustment knob clockwise one notch The word ON flashes on the display and the Temperature Curve Pilot Light flashes indicat ing that the temperature curve is now activated Set the selection knob to ROOM TEMPERATURE QM
18. e Turn the adjustment knob to adjust the time off to the desired value in minutes Note that time off must be non zero in order for the control ler to operate the stage as a mist stage 40 QM 1334 rev 02 HEATER SETTINGS PRINCIPLE OF OPERATION The graph below explains the operation of the heaters using sample values Heating Heater B ON Heater B OFF J Heater AON v Heater B hestera Heater A OFF i f f Room Temperature HEATER HEATER OFF Set Point B ON A ON TEMP 75 F TEMP TEMP 74 F 70 F 72 F If the room temperature rises at 72 F Heater B turns off at 74 F Heater A turns off If the room temperature falls at 72 F Heater A turns on at 70 F Heater B turns on QM 1334 rev 02 41 ST 5124 eal Adjusting the Heater Off Temperature The heater off temperature can provide substantial energy savings if cor rectly adjusted according to the outside temperature It is the temperature at which the heating units turn off see diagram above The off tempera ture is bounded above by the set point plus 9 9 F and below by the set point 20 F a Set selection knob to HEATER PEGG PROBETEMP A OFF TEMP The current Lo HIGH SET POINT TEMP CURVE off temperature flashes on the saa erei canis display START PE gt TIMER REGIA START a Oe PANDWIDTH HEATER B TEMP M Use the adjustment knob to ad S amp STARTTEMP just the off tempera
19. e display and the Minimum Speed Curve Pilot Light turns on indicating that the minimum speed curve is now activated If you have previously specified the points on the curve M Set the selection knob to STAGE 1 MINIMUM SPEED CURVE The current minimum speed flashes on the display Press the push button to display the points of the curve currently de fined until the word OFF appears fourteen clicks Turn the adjustment knob clockwise by one notch The word ON flashes on the display and the Minimum Speed Curve Pilot Light turns on indicating that the minimum speed curve is now activated Ex Viewing Current Minimum Speed and Day When the minimum speed curve is activated the current minimum speed and day number can be viewed at any time To modify the day number refer to the section on temperature curves 36 QM 1334 rev 02 ST 5124 E sSet the selection knob to STAGE 1 MINIMUM SPEED CURVE The current minimum speed is displayed a Press the push button The current day is displayed alternating with the letters cur dAY 4 Deactivating the Minimum Speed Curve E Set the selection knob to STAGE 1 MINIMUM SPEED CURVE The current minimum speed is displayed a Press the push button to display the points of the curve currently defined until the word ON appears fourteen clicks Turn the adjustment knob counterclockwise by one notch The word OFF flashes on the display and the Minimum Spe
20. e sources Do not route probe cables and other power cables through the same electrical knockout Do not run probe cables next to other power cables When crossing other power cables cross at 90 The stage 1 variable speed cooling fans are not running The wiring is incorrect The stage 1 fuse is open The display board interconnect cable is not properly plugged into the power supply board Correct the wiring Be sure two different lines are connected to each fan motor line L1 modulated by the controller should be combined with another line N for 115V or L2 for 230V to activate the motor Also be sure the stage 1 COMMON is supplied by line L1 Correct the problem and replace the fuse Be sure the cable is firmly plugged in 46 QM 1334 rev 02 ST 5124 PROBLEM The stage 1 variable speed cooling fans are not running continued CAUSE The minimum speed is too low The fan motor is defective SOLUTION Adjust the minimum speed to a higher value Check if the motor is defective by connecting it to an alternate power supply If it still is not operating replace the motor The stage 1 variable speed cooling fans run erratically The selected motor curve is inappropri ate The stage 1 differ ential is too small The stage 1 time on or time off is too short A variation in resistance induced on a room probe causes this probe to
21. easured by the probes in working condition The controller will operate according to this temperature To identify the defective probe HM Setthe selection knob to ROOM eee PROBE TEMP TEMPERATURE The room tem aa aaae perature is displayed io ay nn nae OFFTEMP on y MINIMUM SPEED CURVE ucge START a gt TIMER E Press the push button If the TA VAN BANDWIDTH probe connected to input 1 and GEREN an eae STARTTENE supplied with the controller is not START TEMP defective the letters PR1 are dis played alternating with the on off state of the probe and the tem perature measured by the probe 12 QM1334 rev 02 ST 5124 If the probe is defective the letters PR1 are displayed alternating with the state of the probe and the letter P For each additional probe connected to the controller Press the push button once again If the probe is not defective the letters PR where is the number of the input to which the probe is connected are displayed alternating with the on off state of the probe and the temperature measured by the probe If the probe is defective the letters PR are displayed alternating with the on off state of the probe and the letter P QM 1334 rev 02 13 CHANGING THE PARAMETER SETTINGS THE MEANING OF A FLASHING DISPLAY Be va The display will flash in cer tain cases and not in others The flashing indicates that the value shown can be adjusted 78 0 A value tha
22. ed Curve Pilot Light starts blinking indicating that the minimum speed curve is now deactivated QM 1334 rev 02 37 ST 5124 MIST COOLING A mist cooling stage can be operated in one of two modes i STAGED MIST internal switch 5 is OFF the mist stage is the last stage to be turned on in the cooling sequence it is preceded by all the fan stages ii FLOATING MIST internal switch 5 is ON the mist stage is indepen dent of the staged fan sequence and can be turned on anywhere in the sequence The diagram below illustrates this Operation of a Floating Mist Stage Mist units turn on Mist units turn off in timer mode Mist ETEEN is OFF 4 Room Set Point Starting Temperature Temperature The number of heating stages determines which stage is assigned as the mist stage NUMBER OF HEATING STAGES MIST STAGE 0 7 1 6 2 5 To access the parameters position the selector switch at the starting temperature of the mist stage The parameter settings are as follows 38 QM 1334 rev 02 ST 5124 Starting Temperature F or C The mist starting temperature is the temperature at which the mist units turn on see the diagram below The starting temperature minus 1 5 F is the temperature at which the mist units turn off Time on minutes The mist units operate according to a timer cycle The time on is the running time of the mist units Time off minutes The time offis the off time of the mi
23. ed flashes on the display Press the push button The word OFF is displayed indicating that the minimum speed curve is deactivated If this is not the case deacti vate the curve as described below Repeat the following steps for each of the six points E Press the push button once again The word day is displayed alter nating with the day number For the first point of the curve use the adjustment knob to adjust the day number to the desired value For all other points of the curve the day number can not be adjusted E Press the push button once again The minimum speed for that day is displayed alternating with the letters SPd E Use the adjustment knob to adjust the minimum speed to the desired value NOTES i The minimum speed curve must be deactivated before specifying the points on the curve see below ii All six points of the curve must be specified If you do not need six different points repeat your last minimum speed for each unnec essary point of the curve QM 1334 rev 02 35 ST 5124 iii Certain restrictions apply to reduce the risk of errors e decreasing minimum speeds are not allowed e the minimum speed variation cannot exceed 10 per day 2 Activating the Minimum Speed Curve If you have just finished specifying the points on the curve Press the push button once again The word OFF is displayed Turn the adjustment knob clockwise by one notch The word ON flashes on th
24. es in cold weather conditions the controller supplies maximum voltage to the variable speed fans for 2 seconds immediately following each start up FOUR INDEPENDENT TEMPERATURE PROBE INPUTS Up to four temperature probes can be connected to the controller in order to obtain a more accurate reading of the average room temperature and a faster reaction time OVERLOAD AND OVERVOLTAGE PROTECTION Fuses are installed at the input and outputs of the controller to protect its circuitry in the case of an overload or overvoltage COMPUTER CONTROL The controller can be connected to a computer thus making it possible to centralize the management of information and diversify control strategies CONTROL OF AIR INLET MOVEMENT If the ST 5124 is used in combination with a SB 2000 controller the move ment of the air inlets can be coordinated with the operation of the fans using a potentiometer located on the curtain machine or baffle actuator This allows the air inlets to be adjusted correctly without the influence of uncon trollable factors such as wind or air from adjoining rooms When tunnel ventilation is being used the SB 2000 closes the air inlets HIGH LOW TEMPERATURE ALARM OUTPUT QM 1334 rev 02 5 LOCATION OF THE CONTROLS ST 5124 CONTROLLER STATUS LEDS
25. high alarm temperature flashes on the display alternating with the word HI E Use the adjustment knob to set the high alarm temperature to the desired value 44 QM 1334 rev 02 TROUBLESHOOTING GUIDE selection knob is set to ROOM PROBLEM CAUSE SOLUTION There is no The circuit breaker Correct the problem and reset display at the service panel the circuit breaker is off or tripped The wiring is Correct the wiring incorrect The voltage selector Set the switch to the correct switch is in the position wrong position The display board Be sure the cable is firmly interconnect cable plugged in is not properly plugged into the power supply board The display A room probe is Correct the room probe shows P connected improp connection when the erly parameter A room probe is defective Refer to defective probes The defective probe pilot light is on A room probe is defective Refer to defective probes QM 1334 rev 02 45 ST 5124 PROBLEM The display shows sudden variations in the room or outside temperature CAUSE A variation in resistance is induced on a probe There is electrical noise near a probe cable SOLUTION Be sure the probes are dry Locate them away from drafts and sources of radiant heat ing Be sure the outside probe is installed correctly Refer to Installing the outside probe Isolate the probe cables from all high voltag
26. ht turns off The Stage 1 minimum speed can also be defined by a speed curve see below NOTE The controller supplies maximum voltage to the variable speed fans for 2 seconds immediately following each start up Minimum Ventilation Cycle Settings 1 Torun the fans continuously at minimum speed set time off to zero and time on to any value other than zero 2 To stop the fans set time on to zero and time off to any value 3 Torun the fans intermittently set time on to the desired running time and time off to the desired off time 26 QM1334 rev 02 ST 5124 al Adjusting Minimum Speed The minimum speed can be adjusted between 10 and 100 of the full speed of the fans E Set the selection knob to STAGE ZOONA PROBETEMP 1 MINIMUM SPEED CURVE E omo ti SET POIN i VE The current minimum speed for SETENE VAAS ernu etedi CUN Stage 1 flashes on the display stant a TIMER HEATERA TEMP AeA START BANDWIDTH MAMAN TEMP Cyr Xelt eEeg START TEMP START TEME STAGE 2 E Use the adjustment knob to ad just the minimum speed to the de STAGES START TEMP sired value NOTE The minimum speed can be adjusted only if the minimum speed curve is deactivated or if the minimum speed curve is activated but not cur rently operating see below 2 Adjusting Stage 1 Time On and Time Off E Setthe selection knob to STAGE 1 TIMER The current time on for Stage 1 flashes on the display a
27. isplay eeeeeeee 14 Locking the Parameters Settings cccceeeeeeeeeeeeeees 14 TEMPERATURE SETTINGS ccccsesssssssseeeeeeeeeeeeeeeeeees 15 Temperature Units 0 0 00 cccccseessseeeeeeeeeeeeaeeaaassseeeeeeeeeeeess 15 Viewing Temperatures ccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeaaes 15 Temperature Set Point 0 0c cccccccceeeeeeeeeeeeeeeeeeeeeeeeeees 18 Temperature Curve ccccsseecsseeeeeceeeeaaaneaessseeeeeeeesseeess 19 VENTILATION SETTINGS ssssssssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 23 Cooling Operation ccccccsssssssssssssseeeeeeeeeeeeeeeeeeeeees 23 Minimum Ventilation Cycle 0 0 0 0 cc ceeeeeeeeeeeteeeeeeeeeees 26 Ventilation Settings 0 0 0 0 cccccccssccccceeeceeeeeeeeeeeeseeseeseeeees 28 Minimum Ventilation Speed Curve eects 32 NWISUGOOMIG einen ee undue O x hesitates 38 HEATER SET LING S 6 cisssnascinsinaisuncnndinnstontinndsantinndiertinvssinns 41 TEST MODE wisassissicesecenencnecentacevenevacevenacseactetecucecetasscevarasavis 43 ALARM SET INGS nssssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 44 TROUBLESHOOTING GUIDE ssssssssssssssssnssnnnnnnnnnnnnnnnnennne 45 TECHNICAL SPECIFICATIONS naaien 50 FACTORY SETTINGS nnsssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 51 2 QM 1334 rev 02 PRECAUTIONS We strongly recommend installing supplementary natural ventilation a failure alarm system as well
28. lternating with the letters On E Use the adjustment knob to adjust time on to the desired value Pressthe push button The currenttime off for Stage 1 flashes on the display alternating with the letters Off E Use the adjustment knob to adjust time off to the desired value Time on and Time Off can be adjusted between 0 and 900 seconds in increments of 15 seconds QM 1334 rev 02 27 ST 5124 VENTILATION SETTINGS EJ Adjusting the Stage 1 Bandwidth The Stage 1 bandwidth is the temperature intervalwithin which the Stage 1 variable speed fans increase or decrease in speed proportionally to the temperature see the diagram above The hysteresis is fixed at 0 3 F and determines when the fans start operating according to the minimum ven tilation cycle When this value is ad justed allthe starting values for consecu tive stages are adjusted by the same amount The bandwidth can be adjusted from 0 5 F to 20 0 F 0 3 C and 11 1 C eee PROBE TEMP Lommen STAGE 1 a SET POINT TEMP CURVE bi lt 4 HEATER A OFF TEMP r MINIMUM SPEED CURVE M Set the selection knob to STAGE 1 BANDWIDTH The current bandwidth flashes on the display M Use the adjustment knob to adjust the bandwidth to the desired value 2 Adjusting the Stage 2 Starting Temperature The Stage 2 starting temperature is the temperature atwhich the Stage 2 fans start running see the diagram above The hysteresis is fixed at
29. measure sudden variations in the room temperature Electrical noise near a room probe cable causes this probe to measure sudden variations in the room tempera ture Select an appropriate motor curve Refer to motor curves Adjust the stage 1 differential to a higher value Adjust the stage 1 time on or time off to a higher value Be sure the room probes are dry Locate them away from drafts and sources of radiant heating Isolate the room probe cables from all high voltage sources Do not route probe cables and other power cables through the same electrical knockout Do not run probe cables next to other power cables When crossing other power cables cross at 90 QM 1334 rev 02 47 ST 5124 PROBLEM The stage 1 variable speed cooling fans run continuously when the room temperature is below the room set point minimum ventilation cycle CAUSE The stage 1 time off is set to zero The wiring is incorrect SOLUTION Set the stage 1 time off to a value other than zero Correct the wiring Be sure two different lines are con nected to each fan motor line L1 modulated by the controller should be combined with another line N for 115V or L2 for 230V to activate the motor Also be sure the stage 1 COMMON is supplied by line L1 The mist is not operating as The mist time on and time off were The mist time on and time off are in minutes Adjust the mist
30. mory Each new setting will replace the preceding one ii If the power supply is cut off the last parameter settings will be retained in memory until the power is restored 52 QM 1334 rev 02
31. oint E Set the selection knob to ROOM TEMPERATURE lt fe o m Ko 10 lt N N c Ss wU u wW WwW ow we W EO ag o rN ae FE S5 Eo e ity e pes eO EEG g v 2 2 2 o o vn o 22 QM1334 rev 02 QM 1334 rev 02 23 ST 5124 If room temperature rises When room temperature lt Set Point the stage 1 fans run at minimum speed according to the minimum ventilation cycle At Set Point the stage 1 fans stop operating according to the minimum ventilation cycle and increase in speed as the room temperature rises At Set Point Bandwidth 1 the stage 1 fans reach full speed At Stage 2 Starting Temp the stage 2 fans start running At Stage 3 Starting Temp the stage 3 fans start running At Stage 4 Starting Temp the stage 4 fans start running At Stage 5 Starting Temp the stage 5 fans start running At Stage 6 Starting Temp the stage 6 fans start running At Stage 7 Starting Temp the stage 7 fans start running If the room temperature falls At Stage 7 Starting Temp 1 5 F the stage 7 fans return to a stop At Stage 6 Starting Temp 1 5 F the stage 6 fans return to a stop At Stage 5 Starting Temp 1 5 F the stage 5 fans return to a stop At Stage 4 Starting Temp 1 5 F the stage 4 fans return to a stop At Stage 3 Starting Temp 1 5 F the stage 3 fans return to a stop At Stage 2 Starting Temp 1 5 F the stage 2 fans return to a stop At Set Point Bandwidth 1 Stage 1 fans
32. re defined the curve mustbe activated The controller will change the temperature set point every hour ina linear fashion between consecutive points of the curve When the last point of the curve is reached the temperature set point for that day is maintained until the curve is reactivated NOTES i All six points of the curve must be specified If six points are not needed repeat the last temperature value for each unnecessary point ii Certain restrictions apply to reduce the risk of errors The highest possible day number is 99 Decreasing day numbers are not allowed Increasing temperatures are not allowed The temperature variation cannot exceed 3 F 1 6 C per day QM 1334 rev 02 19 ST 5124 1 Specifying the Curve AN PROBE TEMP tomen J STAGE 1 af SET POINT TEMP CURVE Miika OPE TEMP y MINIMUM SPEED CURVE mM Set the selection knob to SET smeT a gt Timer MAMEN TEMP 1 aR POINT TEMP CURVE The START J AE BANDWIDTH Pay TEMP y current temperature set point sanrveme STARTTEW EIEE flashes on the display START TEMP M Pressthe push button The word OFF is displayed indicating that the termperature curve is deactivated If this is not the case see below to deactivate the curve Repeat the following steps for each of the six points a Press the push button once again The word day is displayed alternating with the day number M Using the adjustment knob set the
33. ree times Tae Pv an crug START TEMP E The currently selected type is dis START TEMP played alternating with the letters tYP E Use the adjustment knob to adjust the motor type to the desired value M Return to the Stage 1 bandwidth display by pressing the push button QM 1334 rev 02 9 ST 5124 O fe 5 3 e n D 5 KO a T 4 2 vnez F 9 8 nose B 5 v 2g 3 538g 3528 a5 gt 8 sB3 z z 5 lt lt w hee Bey Be Oo o 3 o 0o PoS OPK ODOAK OC O O39 FE NNNNSNNN N 3 n L a xo o OLDO 7 H gt E gt gt D fo 205 Q w Na gt 4 gt q4 Ho D 3 D 0N o O BR woOOnx BR Aw a o 3 988 INE 7 zNa siz 2 I5 3 2B ey tEn ve A SAaASa lt el Cs Sik D 0 a 90F 4K wo a gt pl 3 0 oA Q 4 Zz gt D Q h O pa S Q z 5 Rg S Sl m wo Q 7 2 gt g d gt S S Sis 2 ga 6 8 RB o 8 Q O ie a gt ep r D gt v lt lt re gt a ee 38 a O 3 D 0 D c lt Ss D 5 S b Z 8 Z D 2 fa mn T g Q Q 3 z o gt Q 3 z z D D D D LA wnwiulj 10 QM 1334 rev 02 ST 5124 HEATING COOLING OPTION Stages 6 and 7 can operate as heating or cooling stages gt Set switches 3 and 4 to OFF to use ON both stages for cooling Set switch 3 to ON and switch 4 to OFF to use Stage 7 for heating and Stage 6 for cooling Set switches 3 and 4
34. st units Note that time off must be non zero in order for the controller to recognize the stage as a mist stage TIME ON _ ON OFF lt _ TIME OFF a1 Adjusting the Mist Starting Temperature Ifthe miststage is staged internal switch 5 is OFF the difference between the starting temperature and the starting temperature of the preceding fan stage can go from 0 5 F to 20 0 F 0 3 C and 11 1 C If the mist stage is floating internal switch 5 is ON the difference between the starting temperature and the set point can go from 0 5 F to 40 0 F 0 3 C and 22 2 C E Set the parameter selection knob to the starting temperature setting of the mist stage The current starting temperature appears flashing on the display M Using the adjustment knob set the starting temperature to the desired value QM 1334 rev 02 39 ST 5124 2 Adjusting the Mist Timer Settings Time on and Time off can be adjusted between 0 and 60 minutes in increments of 1 minute E Set the parameter selection knob to the starting temperature setting of the mist stage The current starting temperature appears flashing on the display E Push the push button The word On flashes on the display alternat ing with the current time on value Turn the adjustment knob to adjust the time on to the desired value in minutes E Press the push button once again The word Off flashes on the display alternating with the current time off valu
35. start decreasing in speed as the temperature decreases At Set Point the Stage 1 fans reach minimum speed e Below the Set Point the stage 1 fans stop operating continuously and operate according to the minimum ventilation cycle at minimum speed 24 QM1334 rev 02 ST 5124 STAGE 2 TIMER MODE In addition the stage 2 can also operate according to a timer cycle internal switch 6 ON The user defines a start temperature for the stage 2 timer The timer then stops at the beginning of stage 2 normal operation 1 5 F STAGE STAGE 1 Minimum Bandwidth Room Ventilation Stage 1 Start Temp Temp Cycle Stage 2 Temperature Set Point STAGE 2 TIMER ON OFF Start Start Temp Temp Stage 2 Stage 2 Temperature Timer Set Point QM 1334 rev 02 25 ST 5124 MINIMUM VENTILATION CYCLE When the room temperature is below the set point the Stage 1 fans operate according to the minimum ventilation cycle Running the fans even though ventilation is not required for a cooling purpose is useful to reduce humidity levels and supply oxygen to the room Italso prevents the fans from freezing in winter TIMEON STAGE 1 STAGE 1 MIN SPEED OFF lt gt TIME OFF STAGE 1 During time on the Stage 1 fans run at Stage 1 minimum speed The Stage 1 Pilot Light turns on During time off the Stage 1 fans donotrun The Stage 1 Pilot Lig
36. t is not flashing cannot be adjusted we Se LOCKING THE PARAMETER SETTINGS The parameter settings can be locked to prevent accidentally modifying them When the settings are locked only the temperature set point and the Stage 1 minimum ventilation speed can be modified as long as the tem perature curve and the minimum ventilation speed curve are deactivated respectively To lock the parameter settings E Set internal switch 1 to ON The Locked Parameter Pilot Light turns on To unlock the parameter settings E Set internal switch 1 to OFF The Locked Parameter Pilot Light turns off 14 QM 1334 rev 02 TEMPERATURE SETTINGS TEMPERATURE UNITS Temperatures can be displayed in either Celsius or ON Fahrenheit units H Set internal switch 2 to the desired position e ON to display temperatures in Celsius units e OFF to display temperatures in Fahrenheit units 2 VIEWING TEMPERATURES ROOMTEMPERATURE renosereur D LOJHIGH HABET ti SET POINT TEMP CURVE B HEATER A OFF TEMP y y MINIMUM SPEED CURVE Bigg STRT 4 HEATER A TEMP i A STAGE 6 START HEATERB TEMP BIXEE svantteme STARTTEMP BAASEES STAGE 3 START TEMP gt TIMER 4 BANDWIDTH Pjg The readout can display values from 40 0 F to 120 F 40 0 C to 48 9 C When the temperature drops below 9 9 degrees the negative sign is displa
37. to ON to use both stages for heating Note that if only one stage is used for heating it must be Stage 7 TEMPERATURE PROBES Connecting the Probes The controller is supplied with one room probe connected to input 1 Three additional probes can be connected to inputs 2 3 and 4 in order to obtain a more accurate reading of the average room temperature and a faster reaction time see wiring diagram enclosed CAUTION Probes operate at low voltage and are isolated from the supply Be sure that probe cables remain insulated from all high voltage sources In particular do not route the probe cables through the same electrical knockoutas other cables Do not connect the shield from the probe cable to an input or a ground QM 1334 rev 02 11 ST 5124 EA Extending the Probes Each probe can be extended up to 500 feet 150 meters To extend a probe M Use ashielded cable of outside diameter between 0 245 and 0 260 in 6 22 and 6 60 mm the cable dimensions should not be under 18 AWG to ensure the cable entry is liquid tight Do not ground the shielding Mit is preferable to solder the cable joint to ensure a proper contact between the two cables CAUTION Do not run probe cables next to other power cables When crossing over other cables cross at 90 El Defective Probes Ifa defective probe is detected the Defective Probe Pilot Light turns on The room temperature shown on the display is then the average temperature m
38. ton The temperature reading from probe x is displayed alternating with the letters Pr x and the on off state of the probe etc NOTE If you let the display flash for more than 10 seconds the control ler resets the minimum and maximum temperatures currently in memory the display stops flashing to indicate that the reset has been done QM 1334 rev 02 17 ST 5124 TEMPERATURE SET POINT ee Lies PROBE TEMP ALARM LO HIGH J su a SET POINT TEMP CURVE rio HEATERA OFF TEMP y y MINIMUM SPEED CURVE Breage START lt SANER MMG TEMP y k a Bam START Y P BANDWIDTH HEATER Tem y SAE sTaRTTENP surte GEE START TEMP The temperature set point is the target room temperature It can be ad justed between 40 0 F and 99 9 F 40 0 C and 37 7 C Adjusting the Temperature Set Point a Setthe selection knob to SET POINT TEMP CURVE The current set point flashes on the display M Use the adjustment knob to adjust the set point to the desired value NOTE The temperature set point can be adjusted only if the temperature curve is deactivated see following section 18 QM 1334 rev 02 ST 5124 TEMPERATURE CURVE The user can define a temperature curve to adjust the set point automatically over a given time period Temperature d4 d25 d35 d50 d70 80 Days A curve is defined using six points Each point specifies a day number and a set point for that day Once the points of the curve a
39. ture to the FIARTIEME desired value El Adjusting the Heater Starting Temperatures The starting temperature is the temperature at which the heater turns on The Heater A starting temperature is bounded above by the off temperature 1 0 F and below by the off temperature 20 F The Heater B starting temperature is bounded above by the Heater A starting temperature 0 5 F and below by the Heater A starting temperature 20 F M Set the selection knob to HEATER A START TEMP or HEATER B START TEMP The current starting temperature for the heater selected flashes on the display M Use the adjustment knob to adjust the starting temperature to the desired value 42 QM 1334 rev 02 TEST MODE A test mode allows you to simulate temperature changes and verify control ler performance In test mode the temperature probe inputs are turned off allowing the user to change the temperature used by the controller to oper ate the stages The controller operates as before using the new tempera ture settings To enter test mode E Turn the selector knob to the ROOM TEMPERATURE position The current room temperature is displayed M Press and hold the push button for 5 seconds The letters TST are displayed alternating with the room temperature Turn the adjustment knob to adjust the room temperature to the de sired value The controller operates the stages according to the new temperature setting
40. values is adjusted all the starting values for consecu tive stages are adjusted by the same amount The difference between a starting temperature and the starting temperature of the preceding stage can go from 0 5 F to 20 0 F 0 3 C to 11 1 C M Set the selection knob to STAGES 4 5 START TEMP The current starting temperature for stage 4 is displayed alternating with teh letters St 4 E Use the adjustment knob to adjust the temperature to the desired value E Press the push button The current starting temperature for stage 5 is displayed alternating with teh letters St 5 E Use the adjustment knob to adjust the temperature to the desired value 30 QM 1334 rev 02 ST 5124 Adjusting the Stage 6 Starting Temperature The Stage 6 starting temperature is the temperature at which the Stage 6 fans start running see the diagram above The hysteresis is fixed at 1 5 F and determines when the fans return to a stop When this value is adjusted all the starting values for consecutive stages are adjusted by the same amount The difference between the starting temperature and the Stage 5 starting temperature can go from 0 5 F to 20 0 F 0 3 C to 11 1 C M Set the selection knob to STAGE 6 START TEMP The current starting temperature flashes on the display M Use the adjustment knob to adjust the temperature to the desired value 8 Adjusting the Stage 7 Starting Temperature The Stage 7 starting temperature
41. vely be oper ating i e the controller will begin to adjust the minimum speed ac cording to the specified points of the curve only when the current day number of the temperature curve reaches the first day number of the minimum speed curve EXAMPLE2 TEMPERATURE CURVE MINIMUM SPEED CURVE Day Temperature Day Speed POINT 1 d5 90 0 F d10 10 POINT 2 d20 85 0 F d20 20 If you activated the temperature curve yesterday the current day num ber of the temperature curve is d6 Therefore if you activate the mini mum speed curve today it will effectively be in operation in 4 days when the current day number of the temperature curve reaches d10 In the meantime the fans will run at the specified single mini mum speed see example 2 If you activated the temperature curve six days ago the current day number of the temperature curve is d11 Therefore if you activate the minimum speed curve today it will effectively be in operation the mo ment you activate it In this case the current minimum speed will be a value between 10 and 20 34 QM 1334 rev 02 ST 5124 a Specifying the Minimum Speed Curve HAGU PROBE TEMP LosHIGH gt SET POINT TEMP CURVE lt OFF TEMP Oy START 4 TEMP 1 w Sege smrt ax BANDWIDTH MINGE TEMP AAN BREE START TEMP STARTTEMP Rg START TEMP Set the selection knob to STAGE 1 MINIMUM SPEED CURVE The current minimum spe
42. yed separately alternating with the numerical value 1 Viewing the Room Temperature The room temperature is the average value of all temperatures measured by activated probes in proper operating condition M Set the selection knob to ROOM TEMPERATURE PROBE TEMP The room temperature is displayed 2 Viewing the Probe Temperatures The controller can display probe temperatures individually Probes can also be turned on or off to control the temperature in different parts of the building QM 1334 rev 02 15 ST 5124 M Set selection knob to ROOM TEMPERATURE PROBE TEMP The average room temperature is displayed E Press the push button The temperature reading from probe 1 is dis played alternating with the letters Pr 1 and the on off state of probe 1 For each additional probe press the push button The temperature reading from probe x is displayed alternating with the letters Pr x and the on off state of the probe etc M Press the push button once again to display the letters Pr 1 alter nating with the state of probe 1 i e ON OFF flashing When a probe is activated it is used in the calculation of the average room temperature E Use the adjustment knob to change the state of the probe M For each additional probe press the push button The state of probe is displayed alternating with the letters Pr x etc Notes i The display returns to the average room temperature after one minute
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