ST 5026 - Munters
Contents
1. 0 5 to 40 F 0 3 to 22 2 C from Set Point 40 to 120 0 F 40 to 48 9 C QM1339 rev 03 41 ST 5026 NOTES i These initial parameter settings will not be retained in the controller s memory 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 42 QM1339 rev 032. At Stage 3 Starting Temp stage 3 fans start running At Stage 4 Starting Temp stage 4 fans start running At Stage 5 Starting Temp stage 5 fans start running At Stage 6 Starting Temp stage 6 fans start running At Stage 7 Starting Temp stage 7 fans start running At Stage 8 Starting Temp stage 8 fans start running If the room temperature falls At Stage 8 Starting Temp 1 5 F stage 8 fans return to a stop At Stage 7 Starting Temp 1 5 F stage 7 fans return to a stop At Stage 6 Starting Temp 1 5 F stage 6 fans return to a stop At Stage 5 Starting Temp 1 5 F stage 5 fans return to a stop At Stage 4 Starting Temp 1 5 F stage 4 fans return to a stop At Stage 3 Starting Temp 1 5 F stage 3 fans return to a stop At Stage 2 Starting Temp 1 5 F stage 2 fans return to a stop s At Set Point Timer Temp Range 1 5 F Stage 1 fans start to run according to the minimum ventilation cycle 22 QM1339 rev 03 ST 5026 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 TIME ON STAGE 1 STAGE 1 FANS OFF lt TIME OFF STAGE 1 Stage 1 fans run during time on The Stage 1 Pilot Light turn
3. air inlets HIGH LOW TEMPERATURE ALARM OUTPUT QM 1339 rev 03 5 ST 5026 CONTROLLER STATUS LEDS LOCATION OF THE CONTROLS LED MEANING FLASHES WHEN STAGE 1 FANS ARE ON TURNS ON WHEN STAGE I Q i gt STAGES 1 2 FANS ARE ON m E z STAGES 3 4 FLASHES WHEN STAGE 3 FANS ARE ON TURNS ON WHEN STAGE m G 4 FANS ARE ON gt m a Q FLASHES WHEN STAGE 5 FANS ARE ON TURNS ON WHEN STAGE QJ STAGES 5 6 S 5 27 La 6 FANS ARE ON Z go gt AS et STAGE 7 I TURNS ON WHEN STAGE 7 FANS OR HEATING UNITS ARE ON 2 5918 Z HEATER B 2 gL VIP R M m S amp STAGE 81 S E URNS ON WHEN STAGE 8 FANS OR HEATING UNITS ARE ON d zov Y HEATER A 4 N E ouu TEMP 7 a Ons ETZ 00 CURVE URNS ON WHEN THE TEMPERATURE CURVE IS ACTIVATED E pms m oz Us gt 4 mea 2 g m m5 E a 2 i Z on zr DEF PROBE TURNS ON WHEN A DEFECTIVE PROBE IS DETECTED m 2 m E E 52 4 2 2 m ALARM TURNS ON WHEN AN ALARM IS DETECTED EIS 2 5 3 3 m Q SZ ea 8 4 m 4 oi EN Gs ON JAS gt Saf INTERNAL SWITCHES mpi o Z cH kd pi o 2h n 1 2 34 5 67 8 9 10 1112 H ie m m i o A O 70 o c 2 n a 5 s x a 7 The internal switches are located on the inside of the front cover When 2 g c c i a 3 the cont
4. not make additional holes in the enclosure particularly on the top of the enclosure when using a SL 1400 communication board B if metallic cable holders are used to secure cables entering the enclosure use the ground plate provided with the controller Connect the ground wire to the ground stud on the plate B 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 activates when current is cut off at its input whereas the other activates when current is supplied at its input For an alarm of the first type use the NO terminal as shown onthe wiring diagram Foran alarm of the secondtype use the NC terminal ALL WIRING MUST BE DONE BY AN AUTHORIZED ELECTRI A CIAN AND MUST COMPLY WITH APPLICABLE CODES LAWS AND REGULATIONS BE SURE POWER IS OFF BEFORE DO ING ANY WIRING TO AVOID ELECTRICAL SHOCKS AND EQUIP WARNING MENT DAMAGE 8 QM1339 rev 03 ST 5026 HEATING COOLING OPTION Stages 7 and 8 can operate as heating or cooling stages Set switches 3 and 4 to OFF to use both ON stages for cooling Set switch 3 to ON and switch 4 to OFF to use Stage 8 for heating and Stage 7 for cooling Set switches 3 and 4 to ON to use both 3 4 stages for heating Note that if only one stage is used for heating it must be Stage 8 TEMPE
5. MP The current starting temperature for the heater selected flashes on the display B Use the adjustment knob to adjust the starting temperature to the desired value 34 QM1339 rev 03 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 de fined according to the set point as shown in the diagram below Room Temperature High Temperature Alarm High Alarm Offset Low Alarm Offset Time The situation changes for high temperature alarms however when the outside temperature is greater than the set point In this case the set point is replaced by the outside temperature as the reference point This means an alarm is set off when the indoor temperature reaches Outside Temperature High Alarm Offset Internal switch 7 must be set to ON to use this feature A third parameter called the critical high temperature is defined to continue monitoring the indoor temperature for high temperatures When the indoor temperature reaches the critical high temperature defined as an absolute value an alarm is set off QM1339 rev 03 35 ST 5026 Adjusting the Alarm Settings The high and low alarm settings are specified as an offset The high and low alarm offsets range from 0 5 F to 40 F The critical temperature ranges from 40 0 F to 120 0 F 40 0 C to 48 9 C R Set the selection knob to ALA
6. P The room temperature is displayed B Tum the adjustment knob clockwise by one notch The minimum temperature is displayed alternating with the letters Lo B Turn the adjustment knob clockwise one notch further The maxi mum temperature is displayed alternating with the letters Hi B Tum the adjustment knob clockwise a third notch The room tem perature is displayed again B Eor each individual probe press the push button The temperature reading from probe x is displayed alternating with the letters Pr x B Tum the adjustment knob clockwise by one notch The minimum temperature is displayed alternating with the letters Lo B Turn the adjustment knob clockwise one notch further The maximum temperature is displayed alternating with the letters Hi B Tum the adjustment knob clockwise a third notch The probe tem perature is displayed again B Eor each additional probe press the push button The temperature reading from probe x is displayed alternating with the letters Pr x NOTE If you let the display flash for more than 10 seconds the controller resets the minimum and maximum temperatures currently in memory the display stops flashing to indicate that the reset has been done QM1339 rev 03 15 ST 5026 TEMPERATURE SET POINT a roe rw TEME OUTSIDE L BIS COMPENSATION CCSETPOINT TEMP CURVE h ALARM LO HIGH NK 19 N y TMEON Ooy OFF a K CYCLETIME HEATER Z 3 a N AOA START Ka TIME
7. R ENE RANGE ies eup f 7 S start Temp GEOES STAGE 7 START TEMP HEATER B START TEMP STAGES 5 6 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 m Setthe selection knob to SET POINT TEMP CURVE The currentset point flashes on the display B 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 16 QM1339 rev 03 ST 5026 TEMPERATURE CURVE The user can define a temperature curve to adjust the set point automatically over a given time period Temperature TY TO T3 T4 T5 T6 d4 d25 d35 d50 d70 d80 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 are defined the curve mustbe activated The controller will change the temperature set point every hourin a 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 p
8. RATURE PROBES a Connecting the Probes The controller is supplied with one indoor temperature probe Three additional indoor probes can be connected to obtain more accurate readings or to control different parts of the building In addition an outdoor probe can be connected if the compensation function on the minimum ventilation cycle is needed see the chapter on ventilation Use terminals 2 3 and 4 to connect additional indoor probes and terminal 5 to connect the outdoor probe as shown on the wiring diagram enclosed CAUTION Probes operate at low voltage and are isolated from the supply Be sure that probe cables remain isolated from all high voltage sources In particular do not route the probe cables through the same electrical knockout as other cables Do not connect the shield from the probe cable to an input or a ground QM1339 rev 03 9 ST 5026 2 Extending the Probes Each probe can be extended upto 500 feet 150 meters To extend a probe M Usea shielded 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 B itis preferable to solder the cable joint to ensure a proper contact between the two cables CAUTION Do notrun probe cables next to other power cables When crossing over other cables cross at 90 3 Installing the Outside Probe B Run the outside probe ca
9. RM LO HIGH The current low alarm offset is displayed alternat ing with the letters LO and OFT B Use the adjustment knob to set the low alarm offset to the desired value ele GUI PROBE TEMP OUTSIDE pata of STAGE 1 SET POINT TEMP CURVE TED y aa QMPENSATION OFF a K CYCLETIME HEATER A 6 2 i L A Eua START Ka TIMER TEME RANGE DRS TEMP Y E START TEMP DIFER STAGE 7 k START TEMP START TEMP STAGES 5 6 B Press the push button The current high alarm offset is displayed alternating with the letters HI and OFT B Use the adjustment knob to set the high alarm offset to the desired value a Press the push button The current critical high temperature is dis played alternating with the letters ABS B Use the adjustment knob to set the critical high temperature to the desired value 36 QM1339 rev 03 TROUBLESHOOTING GUIDE PROBLEM There is no display The display shows P when the parameter selection knob is set to OUTSIDE CAUSE The circuit breaker at the service panel is off or tripped The wiring is incor rect The voltage selector switch is in the wrong position The display board interconnect cable is not properly plugged into the power supply board The outside probe is connected improp erly The outside probe is SOLUTION Correct the problem and reset the circuit breaker Correct the wiring Set the s
10. THE CONTROLLER FOR CUSTOMER USE Enter below the serial number located on the side of the controller and retain this information for future reference Modelnumber ST5026 Serial number Date installed QM1339 rev 03 3 FEATURES The ST 5026 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 Six stages of constant speed cooling fans can be connected to the controller as well as two stages of either constant speed fans or heating units In addition the last cooling stage can be configured as a mist cooling stage The main features of the ST 5026 are as follows THREE DIGIT DISPLAY A three 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 continuously or intermittently to reduce the level of humidity and supply oxygen to the room MINIMUM VENTILATION COMPENSATION CURVE An outside probe can be connected to the controller to adjust the minimum ventilation cycle as a function of outs
11. TWEEN 32 AND 104 F 0 AND 40 C 40 QM1339 rev 03 FACTORY SETTINGS PARAMETER Temperature Set Point 75 F 23 9 C Time On 15 seconds Stage 1 Cycle Time Timer Temp Range 300 seconds 3 F 1 7 C 0 to 900 seconds by increments of 15 seconds 0 5 to 20 F 0 3 to 11 1 C Stage 2 Starting Temp 80 F 26 7 C 0 5 to 20 F 0 3 to 11 1 C from Stage 1 continuous Stage 3 Starting Temp 82 F 27 8 C 0 5 to 20 F 0 3 to 11 1 C from Stage 2 Starting Temp Stage 4 Starting Temp 84 F 28 9 C B t02 0 3 to 11 1 C from Stage 3 Starting Temp Stage 5 Starting Temp 86 F 30 C rom rting Temp Stage 6 Starting Temp 88 F 31 1 C 0 0 3 to 11 1 C from Stage 5 Starting Temp Stage 7 Starting Temp Stage 8 Starting Temp 90 F 32 2 C 91 F 32 8 C rom rting Temp 5 to 0 3 to 11 1 C from Stage 7 Starting Temp Oo 5 to 20 F 0 3 to 11 1 C from previous stage s Starting Temp Starting E E Temperature eer ne Mist Time On 1 minute Time Off 0 minutes 0 to 60 minutes by increments of 1 minute Heater Off Temperature 74 5 F 23 6 C 20 to 10 F 11 1 to 5 6 C from Set Point Low Temperature 65 F 18 3 C High Alar Temperature Critical Temperature 87 F 30 6 C 95 F 35 C
12. Temperature Controller ST 5026 USER S MANUAL i Th AeroStep 8 G p Series 5 System Experts aerotech 7 T5026 Second Functions STAGES 3 4 Push to Set STAGES 5 6 STAGE 7 HEATER B GCE PROBE TEMP C x STAGE 8 HEATER A OUTSIDE E STAGE 1 COMPENSATION f EEr ooInT TEMP CURVE TEMP CURVE ja LO HIGH gt lt y TIME ON han DEF PROBE OFF q ALARM lt K CYCLE TIME PI zue 5 A a BUNSEN sran TIMER TEMP RANGE HANGAN TEMP TU SETTINGS rad START TEMP DTE STAGE 7 psig START TEMP START TEMP ECH INC Mason Mi 48854 USA DS Aerotech Inc 4215 Legion Dr Mason MI 48854 1036 USA Ph 517 676 7070 Fax 517 676 7078 FORM QM 1339 January 2000 TABLE OF CONTENTS Page PRECAUTIONS wc ic ee eee 3 FEATURES afatan inti dialects 4 LOCATION OF THE CONTROLS cccccceeseeeeeeeeeeeeeeeeeeeees 6 Controller Status Leds sees 7 Internal Switches 6 0427A RZ siete S222029 o Z 772 7 INSTALLATION ssssss sese 8 Mounting Instructions eee 8 S c a elea 8 Heating Cooling Option eee eee eee 9 Temperature Probes cccccccccccenseeeeeseeeeeeeeeeeeeeeeeeenees 9 CHANGING THE PARAMETER SETTINGS cesses sss s sss 12 The Meaning of a Flashing Display eee eee eee 12 Locking the Parameters Settings eee eee 13 TEMPERATURE SETTINGS cccccccceeeeeeeeeeeeeeeeeeeeeeeeneees 13 Temperature Units see 13 Viewing Temperatures eee
13. alue Time on can be adjusted between 0 and 900 seconds in increments of 15 seconds 2 Viewing and Adjusting Stage 1 Cycle Time Time Off B 2etihe selection knob to STAGE 1 CYCLE TIME Thecurrentcycle time for the Stage 1 timer flashes on the display alternating with the letters CyC B Use the adjustment knob to adjust cycle time on to the desired value B Ifyou wish to view time off press the push button This value may not simply be the difference between the cycle time and time on if the ramping option has been enabled The time off value actually used by the controller is displayed for 1 minute The display then returns to the cycle time The cycle time can be adjusted between 0 and 900 seconds in increments of 15 seconds The counter starts at the current time on value 26 QM1339 rev 03 ST 5026 MINIMUM VENTILATION COMPENSATION The ST 5026 has the capability of automatically adjusting the running time of the minimum ventilation fans as a function of outside temperature As the weather gets colder the on time is decreased gradually to compensate forthe change This can help reduce costs by reducing the ventilation when itis not required A curve is used to calculate the required compensation as a percentage of current on time see following page Only the running time is adjusted the total cycle time remains unchanged Note thatinternal switch 6 must be set to ON for this feature to work Examples of Ven
14. ble on the north side of the building 6 ft 2m below the eave inside a pale colored conduit Avoid installing the probe in direct sunlight or exposed to the rain B Be sure the probe cable is isolated from sheet metal or any other conductive material B Be sure no cable joint is exposed to air or water 4 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 measured by the probes in working condition The controller will operate according to this temperature 10 QM1339 rev 03 ST 5026 To identify the defective probe Set the selection knob to ROOM TEMPERATURE The room tem perature is displayed CI ROOM TEMPERATURE gt ROBE TEMP ES comrensanon aa SETPOINT TEMP CURVE N 4 EE orme NP ALARM iy y TIMEON OFF a K CYCLE TIME HEATER e 4 WWI a RZ smrt KT a TIMER TEMP RANGE BG Teve Fe srap Teu DGT STAGE 7 i START TEMP HEATER B START TEMP STAGES 5 6 Press the push button If the probe connected to input 1 and sup plied with the controller is not de fective the letters PR1 are dis played alternating with the tem perature measured by the probe If the probe is defective the letters PR1 are displayed alternating with the letter P For each additional probe connected to the controller Press the push button once again If the probe i
15. djustment knob to set the day number to the desired value 4 Deactivating the Temperature Curve R Set the selection knob to SET POINT TEMP CURVE The current temperature set point is displayed B Press the push button to display the points of the curve actually defined until the word ON appears fourteen clicks B 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 R Set the selection knob to ROOM TEMPERATURE 20 QM1339 rev 03 VENTILATION SETTINGS COOLING OPERATION The ST 5026 controls six stages of constant speed fans Stages 1 6 and two optional stages of constant speed fans Stages 7 amp 8 Ventilation Level a 5E e Stage 8 Stage 7 Stage 6 Stage 5 Stage 4 Stage 3 Start Temp Start Temp Start Temp Start Temp Start Temp Start Temp Start Temp Stage 2 Temperature Set Point STAGE 7 STAGE 6 STAGE 5 STAGE 4 STAGE 3 STAGE 2 STAGE 1 Minimum Ventilation Cycle QM1339 rev 03 21 ST 5026 If room temperature rises When room temperature lt Set Point Timer Temp Range stage 1 fans run according to the minimum ventilation cycle At Set Point Timer Temp Range stage 1 fans run continuously At Stage 2 Starting Temp stage 2 fans start running
16. e to be adjusted use the adjustment knob to set the temperature to the desired value Othervise press the push button until the starting temperature of the desired stage is displayed Then use the adjustment knob to set the temperature to the desired value MIST COOLING The last cooling stage can be configured as a mist stage The number of heating stages determines which stage this is NUMBER OF HEATING STAGES MIST STAGE 0 8 1 7 2 6 To access the parameters position the selector switch at the starting temperature of the mist stage The parameter settings are as follows 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 off is the off time of the mist units Note that time off must be non zero in order for the controller to recognize the stage as a mist stage TIMEON lt __ gt ON OFF lt _ _ _ TIME OFF 30 QM1339 rev 03 ST 5026 Mist units turn on Mist units turn off in timer mode Mist OFF Room Set Point Starting Temperature Temperature 1 Adjusting the Mist Starting Temperature The difference between the mist starting tempe
17. eee eee 13 Temperature Set Point eee eee eee 16 Temperature Curvy Ss see eee eee ee 17 VENTILATION SETTINGS sss seesss esse eee 21 Cooling Operation 21 Minimum Ventilation Cycle sss sese 23 Minimum Ventilation Compensation eee eee ee eee e 27 Ventilation SS MGS ia seis sah che ete eattne lina Pen rre E ereet 29 OTS e sie T I 30 HEATER SETTINGS wccenccnncnainccananauaeleas 33 ALARM SETTINGS 0 cccccceseeeeeeeeeeeeeseeeeeeeeeeeeeeeeeeeeeeenes 35 TROUBLESHOOTING GUIDE eee e sees eee eee esse esse seene 37 TECHNICAL SPECIFICATIONS scceeeeeeeeeeeeeeeeeeees 40 FACTORY SEV TINGS esse sse ee ereenn neee 41 2 QM1339 rev 03 PRECAUTIONS We strongly recommend installing supplementary natural ventilation a failure alarm system as well 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 thermostat 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
18. et 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 QM1339 rev 03 33 ST 5026 1 Adjusting the Heater Off Temperature The heater off temperature can provide substantial energy savings if cor rectly adjusted according to the outside temperature Itis the temperature at which the heating units turn off see diagram above The off tempera ture is bounded above by the set point plus 10 F and below by the set point 20 F B Set selection knob to HEATER GEERT Prone reve AIB OFF TEMP The current Sens servon reureu 4 off temperature flashes on the E v NY THEO display HEATER A B i N CYCLE TIME START K MAN TIMER TEMP RANGE l N START TEMP B Use the adjustment knob to ad SATTE just the off temperature to the desired value 2 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 0 5 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 B Set the selection knob to HEATER A START TEMP or HEATER B START TE
19. ght turns off 12 QM1339 rev 03 TEMPERATURE SETTINGS TEMPERATURE UNITS Temperatures can be displayed in either Celsius or ON Fahrenheit units B 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 P aeee E ete GUI PROBE TEMP The readout can display values from 40 0 F to 120 F 40 0 C to 48 9 C CouPensanion ser pont ren When the temperature drops below Lomen ay THEON 9 9 degrees the negative sign is TEMP CO bisaig S P displayed separately alternating with SART p c a TIMER TEMP RANGE 7 sTaRT TEMP BREE SANGER START TEMP HEATERB START TEMP STAGES 5 6 the numerical value 1 Viewing Room Temperature The room temperature is the average value of all temperatures measured by activated probes in proper operating condition B 2et the selection knob to ROOM TEMPERATURE PROBE TEMP The room temperature is displayed 2 Viewing Outside Temperature The outside temperature can be displayed only if an outside probe has been connected to terminal 5 and internal switch 7 is set to ON B 2et the selection knob to OUTSIDE TEMP COMPENSATION The outside temperature is displayed QM1339 rev 03 13 ST 5026 Viewing Probe Temperatures The controller can display probe temperatures individually Probes can also be turned on o
20. ide temperature RAMPING OPTION The ramping option periodically calculates an optimal timer cycle to smooth the transition between minimum ventilation and full operation of stage 1 fans 4 QM1339 rev 03 ST 5026 TEMPERATURE CURVE The controller can be set to automatically change the temperature set point over a given period of time in accordance with the user s require ments by specifying a temperature curve with up to six different points 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 5026 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
21. l cycle time point C to the value defined by the parameter settings TIMER STAGE 1 TIME ON 24 QM1339 rev 03 ST 5026 Option 2 Without Ramping Running Time TIME ON CYCLE TIME TIME ON MINIMUM VENTILATION Erne Indoor Temperature CYCLE RANGE SETPOINT This option is activated by setting internal switch 5 to OFF When the temperature is less than the set point timer temp range Stage 1 fans run according to the minimum cycle see above When the room temperature reaches point A stage 1 fans run continuously with no transition When the temperature decreases 1 5 F below point A Stage 1 fans start operating according to the minimum ventilation cycle QM 1339 rev 03 25 ST 5026 I Viewing and Adjusting Stage 1 Time On R Settheselectionknobto STAGE 1 ECR Prove rene TIME ON The current time on COMPENSATION fleas eee for Stage 1 flashes on the display Lorman NPA y alternating with the letters On HEATER A 2 L lt A a BZH sar A PN TIMER TEMP RANGE Ney TEMP START TEMP B Use the adjustment knob to adjust STARTTEM time on to the desired value laa B ifthe ramping option has been enabled the actual time on value may differ from the user defined time on To view the time on value actually used by the controller press the push button The actual time on value is displayed for 1 minute alternating with the letters CAL The display then returns to the user defined v
22. ng Stage 1 Timer Temperature Range The stage 1 timer temperature range is the temperature difference between the set point and the temperature at which stage 1 fans run continuously When this value is adjusted all the starting values for consecutive stages are adjusted by the same amount The timer temperature range can go from 0 5 F to 20 0 F 0 3 C and 11 1 C R Setthe selection knob to STAGE CON Prove rene 1 TIMER TEMP RANGE The CowPensanion ger pont rem current timer temperature range tomen T TIME ON flashes on the display B Use the adjustment knob to adjust the range to the desired value 2 Adjusting Stages 2 8 Starting Temperatures The starting temperature for a given stage is the temperature at which that stage starts The hysteresis is fixed at 1 5 F and determines when the fans stop operating When this value is adjusted all the starting values for consecutive stages are adjusted by the same amount The difference between between two consecutive starting temperatures can go from 0 5 F to 20 0 F 0 3 C and 11 1 C B Set the selection knob to the desired stage position If the stage is combined with other stages the starting temperature of the first stage is displayed alternating with the letters st x where x is the number of the stage Otherwise the starting temperature of the chosen stage flashes on the display QM 1339 rev 03 29 ST 5026 B ifthe starting temperature displayed is the on
23. o repair the controller QM 1339 rev 03 39 TECHNICAL SPECIFICATIONS Supply 115 230 VAC 18 8 50 60 Hz overload and overvoltage protection fuse F10 1A fast blow 12 VDC for AC back up supply can activate stages 1 through 8 if supplied with DC back up voltage Stage 1 ON OFF output 115 230 VAC 50 60 Hz 30VDC 6A FAN 10A RES fuse F1 10A slow blow Stage 2 ON OFF output 115 230 VAC 50 60 Hz 30VDC 6A FAN 10A RES fuse F2 10A slow blow Stage 3 ON OFF output 115 230 VAC 50 60 Hz 30VDC 6A FAN 10A RES fuse F3 10A slow blow Stage 4 ON OFF output 115 230 VAC 50 60 Hz 30VDC 6A FAN 10A RES fuse F4 10A slow blow Stage 5 ON OFF output 115 230 VAC 50 60 Hz 30VDC 6A FAN 10A RES fuse F5 10A slow blow Stage 6 ON OFF output 115 230 VAC 50 60 Hz 30VDC 6A FAN 10A RES fuse F6 10A slow blow Stage 7 ON OFF output 115 230 VAC 50 60 Hz 30VDC 6A FAN 10A RES heating or cooling fuse F7 10A slow blow Stage 8 ON OFF output 115 230 VAC 50 60 Hz 30VDC 6A FAN 10A RES heating or cooling fuse F8 10A slow blow Alarm ON OFF output 115 230 VAC 50 60 Hz 30VDC 3A fuse F9 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 BE
24. ossible 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 QM1339 rev 03 17 ST 5026 1 Specifying the Curve GGU PROBE TEMP TEMP MEIZ COMPENSATION L STAGE 1 I SET POINT TEMP CURVE K 4 tomen X y TMEON Set the selection knob to SET TEN E O K cYCLETIME POINT TEMP CURVE The shr K current temperature set point 7 flashes on the display A lt T TIMER TEMP RANGE start Teus GEGEE STAGE 7 START TEMP HEATER B START TEMP STAGES 5 6 Press the push button The word OFF is displayed indicating that the temperature 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 Press the push button once again The day number is displayed alternating with the word day Using the adjustment knob set the day number to the desired value Press the push button once again The current temperature set point is displayed alternating with the word set 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 specify ing new points see below 18 QM1339 rev 03 ST 5026 2 Activating the Temperature Curve If you have jus
25. r off to control the temperature in different parts of the building B Set selection knob to ROOM TEMPERATURE PROBE TEMP The average room temperature is displayed B Dress the push button The temperature reading from probe 1 is dis played alternating with the letters Pr 1 B Eor each additional probe press the push button The temperature reading from probe x is displayed etc B 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 B Use the adjustment knob to change the state of the probe B Eor each additional probe press the push button The state of probe is displayed alternating with the letters Pr x etc NOTES i At least one probe must be activated at all times If only one probe remains active the controller will lock the on off switch for that probe ii The display returns to the average room temperature after one minute iii Initially only probe one is activated 14 QM1339 rev 03 ST 5026 4 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 B 2et the selection knob to ROOM TEMPERATURE PROBE TEM
26. rature and the starting temperature of the preceding stage can go from 0 5 F to 20 0 F 0 3 C and 11 1 C B Set the parameter selection knob to the starting temperature setting of the mist stage The current starting temperature appears flashing on the display B Using the adjustment knob set the starting temperature to the desired value D Adjusting the Mist Timer Settings Time on and Time off can be adjusted between O and 60 minutes in increments of 1 minute RB Set the parameter selection knob to the starting temperature setting of the mist stage The current starting temperature appears flashing on the display QM 1339 rev 03 31 ST 5026 B Push the push button The word On flashes on the display alternat ing with the current time on value B Turn the adjustment knob to adjust the time on to the desired value in minutes B Press the push button once again The word Off flashes on the display alternating with the current time off value B Tum 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 32 QM1339 rev 03 HEATER SETTINGS PRINCIPLE OF OPERATION The graph below explains the operation of the heaters using sample values Heating Heater B ON Heater B OFF E Heater B Heater AON Heater A Heater A OFF l E Temperature HEATER HEATER OFF S
27. roller is shipped from the factory all the switches are set to OFF oO E Aru 7 VOT o Som n Gms 3 s OFF ON Sz J od 1 UNLOCKED PARAMETERS LOCKED PARAMETERS Jm 26 E E 592 2 FAHRENHEIT DEGREES CELSIUS DEGREES G a gt za no S 0 3 NO HEATING STAGES HEATING E 0 4 1 HEATER 2 HEATERS n n z gt 5 5 STAGE 1 WITHOUT RAMPING STAGE 1 WITH RAMPING 2 m m L 1 N 5 9 oN E a E 0 lt 59 6 OUTSIDE PROBE DISABLED OUTSIDE PROBE ENABLED L no E d dW W Sa 8 RESERVED z P2 T 0 m E djem ER s s D x 9S 9 RESERVED BS C0 SIOE T RESERVED so B J RE a om o G E 11 RESERVED 0 EJ 12 NORMAL SETTINGS ADVANCED SETTINGS 6 QM1339 rev 03 QM 1339 rev 03 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 Insertthe 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 B Set the voltage switch to the appropriate voltage B Use the electrical knockouts provided at the bottom of the enclosure Do
28. s not defective the letters PR where is the number of the input to which the probe is connected are displayed alternating with the temperature measured by the probe If the probe is defective the letters PR are dis played alternating with the letter P Outside Probe Ifthe outside probe is defective the display shows the letter ete GU PROBE TEMP H P when the parameter selection knob ss ncaa is set to OUTSIDE TEMP a SET POINT TEMP CURVE a DG owe ALARM LO HIGH gt 4 TIME ON v OFF a K CYCLETIME HEATER e Ay P Pits start K aT TIER TEMP RANGE SSG TEMP Y a START TEMP DGT STAGE 7 i START TEMP START TEMP STAGES 5 6 QM1339 rev 03 11 CHANGING THE PARAMETER SETTINGS THE MEANING OF A FLASHING DISPLAY aa E The display will flash in cer tain cases and not in others me The flashing indicates that the 2 Cc a a value shown can be adjusted 1 D 3 A value that is not flashing cannot be adjusted 4 l as 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 can be modified as long as the temperature curve is deactivated To lock the parameter settings B Setinternal switch 1 to ON The Locked Parameter Pilot Light turns on To unlock the parameter settings B Set internal switch 1 to OFF The Locked Parameter Pilot Li
29. s on During time off the Stage 1 fans do not run The Stage 1 Pilot Light turns off Minimum Ventilation Cycle Settings 1 Torunthe fans continuously at minimum speed settime 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 QM 1339 rev 03 23 ST 5026 RAMPING OPTION The ramping option allows the user to smooth the transition between mini mum cycle and full operation of stage 1 fans i e in the temperature inter val between the set point and the set point timer temp range Option 1 With Ramping Running Time TIME ON CYCLE TIME MINIMUM VENTILATION TIMER TEMP CYCLE RANGE SET POINT Indoor Temperature This option is activated by setting internal switch 5 to ON At room temperatures at or below the set point the controller operates the Stage 1 fans according to the minimum ventilation cycle If the room temperature rises above the set point a new TIME ON is calcu lated periodically as the temperature increases to allow a smooth progres sion from point A to point B up to full operation of the fans when the timer temp range is reached If the room temperature decreases 0 3 F below the set point timer temp range the TIME ON value of the minimum ventilation cycle decreases gradu ally from a value equal to the tota
30. t 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 indi cating 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 is displayed 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 indi cating that the temperature curve is now activated Set the selection knob to ROOM TEMPERATURE QM 1339 rev 03 19 ST 5026 Viewing Current Set Point and Day Number When the temperature curve is activated the current temperature set point and day number can be viewed at any time The current day num ber can also be adjusted in order to move forward or backward on the temperature curve B Set the selection knob to SET POINT TEMP CURVE The current temperature set point is displayed B Press the push button The current day number is displayed alter nating with the letters cur day B Use the a
31. tilation Compensations Temperature gt 50 F Compensation 100 TIME ON ON as CYCLE TIME Outdoor Temperature 25 F edie N Compensation 66 5 TIMEON K HII m CYCLE ae In the first example given on the following page compensation is not needed when the outside temperature is greater than 50 F The fans operate according to the full running time defined by the parameter settings In the second example the running time is decreased to 66 5 of full running time to compensate for the colder outdoor temperature Cycle time re mains unchanged QM1339 rev 03 27 ST 5026 FIGURE 2 COMPENSATION CURVE Minimum Ventilation Compensation Ventilation Compensation 20 15 10 5 0 6 10 15 20 25 30 36 40 45 50 70 Outside Temperature F E Activating Deactivating Compensation Factor B 2et tihe selection knob to OUTSIDE TEMP COMPENSATION The current outside temperature is displayed B Press the push button The status of the compensation factor is displayed i e ON OFF Use the adjustment knob to set the status to the desired value After ten seconds the display returns to the outside temperature value NOTES i When the compensation factor is activated the lowest time on value allowed after zero is 30 seconds 28 QM1339 rev 03 ST 5026 ii The controller recalculates the compensation factor at the end of the time on portion of each timer cycle VENTILATION SETTINGS 1 Adjusti
32. ular make sure two different lines are connected to each 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 ST 5026 PROBLEM The mist is not operating as desired The cooling fans are notrunning or The heaters are not turning on CAUSE The mist time on and time off were incor rectly adjusted The wiring is incor rect The stage s fuse is open The display board interconnect cable is not properly plugged into the power supply board The fan motor or heater is defective The controller is defective SOLUTION The mist time on and time off are in minutes Adjust the mist time on and time off correctly Correct the wiring Be sure two different lines are connected to each fan motor or heater the controller s output line L1 should be combined 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 Be sure the cable is firmly pluggedin Check if the motor or heater is defective by connecting it to an alternate power supply If it still is not operating replace the motor or heater Listen to see if there is a clicking sound when the stage or heater pilot light turns on If there is no clicking sound contact your distributor t
33. witch to the correct position Be sure the cable is firmly pluggedin Correct the outside probe connection Refer to defective probes SETTINGS defective The display Aroom probe is Correct the room probe connec shows P when connected improp tion the parameter erly selection knob is set to ROOM A room probe is defective Refer to defective probes QM1339 rev 03 37 ST 5026 PROBLEM The defective probe pilotlight is on CAUSE A room or outside probe is defective SOLUTION Refer to defective probes The display shows sudden variations in the room or outside temperature A variation in resist ance is induced on a probe There is electrical noise near a probe cable Be sure the probes are dry Locate them away from drafts and sources of radiant heating Be sure the outside probe is installed correctly Refer to Installing the outside probe Isolate the 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 Stage 1 fans do not stop running when the controller is operating in minimum ventilation cycle 38 QM1339 rev 03 Time off is set to zero The wiring is incorrect Set time off to a value other than zero Correct the wiring In partic
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