ST 5222 - Munters
Contents
1. B 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 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 18 QM 1337 rev 02 ST 5222 TEMPERATURE SET POINT isle Biz diii PROBE TEMP The temperature set point is the target ione Y 7j M s K SET POINT TEMP CUR room temperature It can be adjusted CESEN oF Teve y gt idore T e ave between 40 0 F and 99 9 F 40 0 C SERI _ gt BANDWIDTH ITIMER and 37 7 C E SU i START TEMP STAGE 2 v START TEMP MINIMUM SPEED BANDWIDTH Adjusting the Temperature Set Point B Settheselection knob to SET POINT TEMP CURVE The current set point flashes on the display B Usethe 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 QM 1337 rev 02 19 ST 5222 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 d80 Days A curve is defined using six points Each point specifies a day number and aset point for that day Once the points of the curve2. START TEMP MINIMUM SPEED connected to input 1 and supplied BANDWIDTH with the controller is not defective the letters PR1 are displayed al ternating with the temperature measured by the probe Ifthe probe is defective the letters PR1 are displayed alternating with the letter Pp lie dz iid PROBE TEMP w MINIMUM SPEED CURVE For each additional probe connected to the controller B Pressthe 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 temperature mea sured by the probe If the probe is defective the letters PR are displayed alternating with the letter P QM 1337 rev 02 13 ST 5222 HEATING OPTIONS Stages 5 and 6 can operate as heating or cooling stages Set switches 3 and 4 to OFF to use both stages for cooling eH gt Set switch 3 to ON and switch 4 to OFF to use Stage 6 for heating and Stage 5 for cooling Set switches 3 and 4 to ON to use both stages for heating Note that if only one stage is used for heating it must be Stage 6 When two heaters are used switch 5 is used to select between staged and independent heaters Set switch 5 to ON for independent heaters 14 QM 1337 rev 02 CHANGING THE PARAMETER SETTINGS THE MEANING OF A FLASHING DISPLAY b Ea The display wil
3. heating fuse F6 15A slow blow Alarm ON OFF output 115 230 VAC 60 Hz 30VDC 3A fuse F7 3A slow blow Probes Low voltage 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 QM 1337 rev 02 51 FACTORY SETTINGS PARAMETER Temperature Set Point FACTORY SETTING 75 F 23 9 C RANGE OF VALUES 40 to 99 9 F 40 to 37 7 C Bandwidth 25 8 C Minimum Speed 40 10 to 100 Time On 15 seconds 0 to 900 seconds by Stage 1 increments of 15 Time Off 0 seconds seconds 0 5 to 20 F Bandwidth 0 3 to 11 1 C Minimum Speed 10 to 100 Set Point Bandwidth Stage 2 Starting Temp cheat to eek Onn Bandwidth 20 F 41 1 0 5 to 2 0 3 to 11 C 0 F 1 C Stage 3 Starting Temp Stage 4 Starting Temp Stage 2 Starti Bandwidtht Stage 2 Starti Bandwidth 20 Stage 3 Starti 0 5 F to S Starting ng Temp 0 5 F to ng Temp F 11 1 C ng Temp tage 3 Temp 20 F 11 1 C Stage 5 Starting Temp Stage 4 Start 0 5 F to S Starting 20 F 11 ing Temp tage 4 Temp 196 Stage 6 Starting Temp 52 QM1337 rev 02 Stage
4. temperature see the diagram above RESEND or Tew wg muy idp digi E When this value is adjusted all the en starting values for consecutive stages mA v S uH SHEER are adjusted by the same amount The GR women bandwidth can be adjusted between 0 5 F and 20 0 F 0 3 C and 11 1 C M Set the selection knob to STAGE 1 BANDWIDTH TIMER The current bandwidth is displayed alternating with the letters bd B Use the adjustment knob to adjust the bandwidth to the desired value E adjusting the Stage 2 Starting Temperature The Stage 2 starting temperature is the temperature at which the Stage 2 fans start running see the diagram above 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 1 starting tempera ture bandwidth can go from 0 5 F to 20 0 F 0 3 C to 11 1 C B Setthe selection knob to STAGE 2 START TEMP The current starting temperature flashes on the display B Use the adjustment knob to adjust the temperature to the desired value 28 QM1337 rev 02 ST 5222 El Adjusting Stage 2 Bandwidth The Stage 2 bandwidth is the temperature interval within which the Stage 2 variable speed fans increase or decrease in speed proportionally to the temperature see the diagram above The bandwidth can be adjusted between 0 5 F and 20 0 F 0 3 C and 11 1 C B Set the selection knob t
5. 5 to ON Each heater operates independently of the other according to its own start ing and off temperatures Both heaters operate according to the average reading from all temperature probes Heating Heater B ON Heater B OFF Heater AON Heater A OFF Set Point ial et Poin T HeaterB Heater HeaterA HeaterA 75 F emp Start B Off Start off Temp Temp Temp Temp 70 F 71 F z72 74 F If the room temperature rises at 71 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 42 QM 1337 rev 02 ST 5222 EE Adjusting Starting Temperatures The heater starting temperature is the temperature at which the heating units turn on see diagram above The Heater A starting temperature is bounded above by the off temperature 0 5 F and below by the off tem perature 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 selection knob to HEATER A START TEMP The current Lomen A ER starting temperature for Heater A pay iQ venom speen curve is displayed alternating with the letters Ht A Divided PROBE TEMP gt BANDWIDTH TIMER A START TEMP EO iv BOZE START TEMP MINIMUM SPEED BANDWIDTH B Use the adjustment knob to adjust the starting temperature to the des
6. are defined the curve mustbe activated The controller will change the temperature set point every hour ina linear fashion between consecutive points ofthe 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 1 All six points ofthe 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 20 QM1337 rev 02 ST 5222 m Specifying the Curve Diei Mad iliis PROBE TEMP g LO HIGH p Smee HM Set the selection knob to SET a Erron re cons v MININO POINT I TEMP CURVE The SAR 4 gt BANDWIDTH TIMER current temperature set point um are START TEMP flashes on the display sTarTTeme MINIMUM SPEED BANDWIDTH B Pressthe push button The word OFF is displayed indicating that the termperature curve is deactivated Ifthis is not the case see below to deactivate the curve Repeat the following steps for each of the six points E Press the push button once again The word day is displayed alternating with a day number B Using the adjustment knob set the day number to the desired value B Pressthepush
7. as a mist stage At Set Point stage 1 fans stop operating according to the minimum ventilation cycle and increase in speed as the room temperature rises d At Set Point Bandwidth stage 1 fans reach full speed ajoh9 uone nusA JOVIS S 39VIS At Stage 2 Starting Temp stage 2 fans start running At Stage 3 Starting Temp stage 3 fans start running At Stage 4 Starting Temp stage 4 fans start running E juod jes ejnje1eduue eBeis upiwpueg At Stage 5 Starting Temp stage 5 fans start running At Stage 6 Starting Temp stage 6 fans start running z abels duie Hes If the room temperature falls i z3aevis z abels ujpiwpueg 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 L MH EE Iz abels 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 p ebels At Stage 2 Starting Temp 1 5 F stage 2 fans return to a stop At Set Point Bandwidth the stage 1 decrease in speed as the temperature falls g bes At Set Point stage 1 fans stop operating continuously and oper ate according to the minimum ventilation cycle at minimum speed JoS l 9 eDejs duejiquels duejqueis due ueis due
8. by pressing the push button QM 1337 rev 02 9 ZOANLEELWO OL LL co er eer WO a a a m 37 DB oo 2 dp fe S5 c2 8H zs Ff j mc C D Oo 0 2 ce OO pcs og gt po amp og o 3 jg 29 Zg aD o o o D s ono 2F ct N 25 20 F ot 5 N Go 2 5 28 gd gt 59 d Be 86 s8 amp 0 3 et c o5 Sg Oo E Z o2 3 Zo o x 5 lt 9 25 a c S Z5 29 pO a 0 YN 5 o cd o 0 o 2 mnc 58 gS ge 37 Ro So s SG gt o of da a om on lt s gt 7 2 98 260 37 F Ke 2m ce cC D lt lt d O D Q 2 g Yo aN ag 9 g g al ge NM Rd Q w o3 lt 0 9 7D o E o 6 E o g c a S 3 sc 3 39 3 8 0 Qo zi m S D T D Ez D E 7 2 a D D Minimum Speed Setting and Motor Curve Selection Control Settings Minimum Motor Minimum Voltage Model Numbers Curve Speed Output AT09Z1 AT10SP1 AT10AP1 120 VAC 1 AT09Z2 AT10SP2 AT10AP2 240 VAC 1 AT14Z AT14F AT14G 1 AT15AP AT15SP 1 AT16Z AT16F AT16G 3 AT18Z AT18F AT18G GB18 3 AT24Z AT24F AT24G GB24 4 AT36Z AT36ZB1 AT36G1 AT36GB1 5 The above values assume the following conditions unless noted otherwise 1 Input Voltage 240 VAC 2 Static Pressure 0 05 S P o 3 Fan Accessories Hood Guard and Shutter if applicable Q1 For configurations or requirements other than above refer to Form QM1065 N N N ST 5222 TEMPERATURE PROBES ud Connecting the Probes The controller is supplied with one room probe connected to input 1 Three ad
9. installing an additional protection device on the supply cir cuit as well as an external relay on all ON OFF stages 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 5222 Serial number Date installed QM 1337 rev 02 3 FEATURES The ST 5222 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 Two stages of variable speed cooling fans two stages of constant speed cooling fans and two stages of either constant speed cooling fans or heaters can be connected to the controller In addition the last cooling stage can be configured as a mist cooling stage The main features of the ST 5222 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 all
10. 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 QM 1337 rev 02 47 ST 5222 PROBLEM The stage 1 or 2 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 48 QM1337 rev 02 The selected motor curve is inappropri ate The stage 1 band width 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 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 bandwidth 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 throu
11. ues When room temperature Set Point stage 1 fans run at minimum speed according to the minimum ventilation cycle 24 QM1337 rev 02 QM1337 rev 02 25 ST 5222 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 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 do notrun The Stage 1 Pilot Light turns off The Stage 1 minimum speed can also be defined by a speed curve see below NOTE Thecontroller 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 QM1337 rev 02 ST 5222 B Adjusting Stage 1 Minimum Speed The minimum speed can be adjusted between 10 and 100 of the full speed of the fans E Set the
12. 5 Locking the Parameters Settings 15 TEMPERATURE SETTINGS accu nr tua run uc ap s eura suec unu ciu 16 Temperature DS css eis eod siu Den umm aenn n QU pni dU nO dd 16 Viewing Temperatures MAE 16 Temperature Set Point eeeesssssssssses 19 Temperature Curve ssssssens 20 VENTILATION SETTINGS ccce 24 Cooling ODSFPallOlY suus ci cetbie zit dad qti Du A utin rte tid Ra dux 24 Minimum Ventilation Cycle sssssss 26 Ventilation Settings essnn 28 Minimum Ventilation Speed Curve sssse 32 Mist COOING morier ct 38 HEATER SETTINGS ssssissasiraviasvnnivliawesiiditucsovaiswascvaianascsaiuae 41 ALARM SETTINGS iiucscusasssusue us ushst Rau rur hnuE uH RR E ERE RuME tKUER 45 TROUBLESHOOTING GUIDE 46 TECHNICAL SPECIFICATIONS 51 FACTORY SETTINGS scoscese aaaeaii eaae CUEEEM GUnN EE EB EE 52 2 QM1337 rev 02 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 ther mostat Although fuses on the outputs of the controller protect its cir cuits in case of an overload or overvoltage we recommend
13. 5 Start 0 5 F to Starting ing Temp tage 5 Temp 20 F 11 1 C ST 5222 PARAMETER FACTORY RANGE OF SETTING VALUES Time On 1 minute Mist 0 to 60 minutes Time Off 0 minutes Heater A Starting 72 5 F URL M UAE UU Tem 22 5 C to Off Temp 20 F ps i 11 1 C Heater A Starting Heater B Starting 70 5 F Temp 0 5 F 0 3 C to Temp 21 4 C Heater A Starting Temp 20 F 11 1 C 14 5oF Set Point 20 F 11 1 C Heater A B Off Temp 23 6 C to Set Point 10 F j 5 6 C 65 F 18 3 C 0 5 to 40 F Alarm 0 3 to 22 2 C from High Temp 87 F 30 6 C Set Point 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 QM 1337 rev 02 53
14. E 6 OPERATION THRESHOLD VALUE Cooling Set Point 5 0 F 2 8 C HeaterA Starting Temperature 5 0 F 2 8 C Heating OR Set Point if the parameter settings are such that the preceding value is greater than the set point Interaction Between the Temperature Curve and the Mini mum Speed Curve The minimum speed curve can be activated only if the temperature curve is already activated 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 QM1337 rev 02 33 ST 5222 ST 5222 When the minimum speed curve is activated it will effectively 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 EN Specifying the Minimum Speed Curve ee eae PROBE TEMP number of the temperature curve reaches the first day number of the B Set the selection knob to ama a m
15. ES WHEN THE TEMPERATURE CURVE IS ACTIVATED Ed E omn 200 N TEMP CURVE TURNS ON WHEN THE MINIMUM VENTILATION SPEED CURVE IS z ds uf I ALSO ON ER I Od z GE oj M S5 i DEF PROBE FLASHES WHEN A DEFECTIVE PROBE IS DETECTED Te gt v a z 02 ZZO m o 7 2 2 m ALARM TURNS ON WHEN AN ALARM IS DETECTED Bele ga oc zmeBm LOCKED TURNS ON WHEN THE PARAMETERS ARE LOCKED mao 7 zzo diis m z m ON INTERNAL SWITCHES 19S 01 usng NOLLNA HSNd 1 2 34 56 7 8 9101112 o 4d o o 3 Qa mn c 2 o o gt o SON LINAWLSnNrav The internal switches are located on the inside of the front cover When the controller is shipped from the factory all the switches are set to OFF YALANVeVd SONILLAS NOILO3 13S NOILONNA OFF ON 1 UNLOCKED PARAMETERS LOCKED PARAMETERS 2 FAHRENHEIT DEGREES CELSIUS DEGREES v 191e9H 9 eBeigs g 1e1e9H S eBeig ening due H3TIOHLINOO eqojg jeg y esebeis z sebeys 3 COOLING ONLY HEATING 4 1 HEATER 2 HEATERS 5 STAGED HEATERS INDEPENDENT HEATERS 6 QM1337 rev 02 QM1337 rev 02 7 SMadx p 219g uoHv 1u24 ay YUVVIAOUVeL VSN 7S88P IIN uoseIy ONI HOSLOYSV saa1 SNLVLS INSTALLATION MOUNTING INSTRUCTIONS Open the latch and lift the cover Remove the black caps loca
16. OFF f Room Set Point Start Temperature Temp 38 QM1337 rev 02 ST 5222 Adjusting the Mist Starting Temperature and Timer The mist starting temperature is bounded below by the starting temperature of the preceding cooling stage 0 5 F 0 3 C and above by the starting temperature of the preceding cooling stage 20 0 F 11 1 C The time on and time off parameters can take values from 0 to 60 minutes If Stage 4 is the mist stage sete Rd ated PROBE TEMP M Set the selection knob to tomen erron e STAGES 3 4 START TEMP OEE TEME v mb w MINIMUM SPEED CURVE The stage 3 starting tempera We O gt enor ster 7 START ture is displayed alternating Be Ky ose ERE STAGES 3 with the letters ST3 BANDWIDTH B Press the push button The Stage 4 starting temperature is displayed alternating with the letters STA B Usethe adjustment knob to set the starting temperature to the desired value B Press the push button The mist time on is displayed alternating with the word On M Usethe adjustment knob to set time on to the desired value B Pressthe push button The mist time off is displayed alternating with the word OFF B Use the adjustment knob to set time off to the desired value QM 1337 rev 02 39 ST 5222 If Stage 5 or 6 is the mist stage Set the selection knob to STAGE 5 START TEMP or STAGE 6 START TEMP The mist starting temperature is displayed alternating wit
17. RT GN TEMP gt g a START TEME EGER START TEMP MINIMUM SPEED BANDWIDTH w MINIMUM SPEED CURVE gt BANDWIDTH TIMER EN Viewing the Room Temperature The room temperature is the average value of all temperatures measured by activated probes in proper operating condition B Setthe selection knob to ROOM TEMPERATURE PROBE TEMP The room temperature is displayed B Viewing the Probe Temperatures The controller can display probe temperatures individually Probes can also be turned onoroff 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 16 QM 1337 rev 02 ST 5222 B Press the push button The temperature reading from probe 1 is dis played alternating with the letters Pr 1 B For each additional probe press the push button The temperature reading from probe x is displayed alternating with the letters Pr x etc B Press the push button once again to display the state of probe 1 i e ON OFF 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 Foreach additional probe press the push button The state of probe is displayed alternating with the letters Pr x etc Notes i Atleast one probe must be activated atalltimes If only one probe remains active th
18. Temperature Controller ol 5222 USER S MANUAL SS AeroSpeed 2 4 aerotech Series 5 The Ventilation System Experts ST5222 Second Functions Stages 1 2 Push to Set Stages 3 4 Stage 5 Heater B bise zd biJ PROBE TEMP Stage 6 Heater A Temp Curve LO HIGH f STAGE 1 lA SETPOINT TEMP CURVE Def Probe OFF TEMP MINIMUM SPEED CURVE Alarm Pigg ov HEATER A TEND gt BANOWIOTH TIMER Locked x pica START srART TEMP BGB Gey cR y ELE SUN ee SIARTTEMP MINIMUM SPEED BANDWIDTH SETTINGS AEROTECH INC Mason MI 48854 USA Aerotech Inc FORM QM 1337 4215 Legion Dr Mason MI 48854 1036 USA March 2000 Ph 517 676 7070 Fax 517 676 7078 TABLE OF CONTENTS Page PRECAUTIONS sssinssvavsinrctecitacccresncsizenisceiecsdasstancsarssancemsonsss 3 d u08 ll e s 4 LOCATION OF THE CONTROLS c 6 Controller Status LOPS Losses es tnter edita beside 7 Internal Switches NORTE 7 INSTALLATION easicessiciscaiaiesnnbnnicvancvnnchancvbiasancvanchansnaceboasmuaaaes 8 Mounting Instructions sseessssseeeeeeeeeeeneee 8 doip aiia NEED TTD TOT 8 Motor Types eS 9 Temperature Probes cccccceccccceeeeeeasssssssseeeeeeeeeeeeess 12 Heating Options sese 14 CHANGING THE PARAMETER SETTINGS 15 The Meaning of a Flashing Display 1
19. and a faster reaction time STAGED OR INDEPENDENT HEATERS OVERLOAD AND OVERVOLTAGE PROTECTION Fuses and other protection devices are installed on the outputs of the con troller 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 USING THE SB 2000 If the ST 5222 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 HIGH LOW TEMPERATURE ALARM OUTPUT QM1337 rev02 5 LOCATION OF THE CONTROLS ST 5222 CONTROLLER STATUS LEDS LED MEANING o H gt i 5 ub 2 tb FLASHES WHEN STAGE 1 FANS ARE ON TURNS ON WHEN STAGE 2 eT E STAGES 1 2 ANS ARE ON a d E o o gt fe STAGES 3 4 FLASHES WHEN STAGE 3 FANS ARE ON TURNS ON WHEN STAGE 4 ES m un FANS ARE ON o a o 7 r e e gt 7 o RB STAGE 9 TURNS ON WHEN STAGE 5 FANS OR HEATER B UNITS ARE ON E ik tb HEATER B 3 9 G b STAGE 6 z ig 7 E HEATER A TURNS ON WHEN STAGE 6 FANS OR HEATER A UNITS ARE ON v 1 m ES Al ses z Sr gog FLASH
20. button once again The current temperature set point is displayed alternating with the word set B 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 QM1337 rev02 21 ST 5222 B Activating the Temperature Curve If you have just finished specifying the points on the curve E Press the push button once again The word OFF flashes on the display B Turn the adjustment knob clockwise one notch The word ON flashes on the display the Temperature Curve Pilot Light flashes indicating that the temperature curve is now activated HM Setthe selection knob to ROOM TEMPERATURE If you have previously defined the points on the curve B Setthe selection knob to SET POINT TEMP CURVE The current value of the temperature set point flashes on the display B Pressthe push button The word OFF flashes on the display B Press the push button to display the points of the curve currently defined until the word OFF appears thirteen clicks B 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 HM Setthe selection knob to ROOM TEMPERATURE 22 QM1337 rev 02 ST 5222 E Viewing Current Se
21. ch The word ON flashes on the display the Temperature Curve Pilot Light turns on indicating that the minimum speed curve is now activated NOTE When the minimum speed curve is operating the current Stage 1 minimum speed can be viewed at any time by setting the selection knob to STAGE 1 MINIMUM SPEED CURVE The current day number can then be viewed by pressing the push button 36 QM1337 rev 02 ST 5222 H Deactivating the Minimum Speed Curve 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 ON appears fourteen clicks Turn the adjustment knob counterclockwise by one notch The word OFF flashes on the display and the Temperature Curve Pilot Light starts blinking indicating that the minimum speed curve is now deac tivated QM1337 rev 02 37 ST 5222 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 6 1 5 2 4 The following diagram sums up the operation of the mist units If a mist stage is not needed time off should be set to zero TIMEON lt gt MIST UNITS ON MIST UNITS OFF IL TIMEOFF The diagram below illustrates the operation of a mist stage Mist units operate in timer mode Mist units turn off Mist ei mre A
22. ditional probes can be connected to inputs 2 3 and 4 see wiring diagram enclosed CAUTION Probes operate at low voltage and are isolated from the supply Besurethat probe cables remain insulated from all high voltage sources In particular do notroute the probe cables through the same electrical knockout as other cables Do not connectthe shield from the probe cable to an input ora ground B Extending the Probes Each probe can be extended up to 500 feet 150 meters To extend a probe B 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 B6 itis 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 12 QM 1337 rev 02 ST 5222 E Defective Probes Room Probes lf a 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 Toidentify the defective probe B Set the selection knob to ROOM TEMPERATURE The room tem tomen ron ren perature is displayed EESE oF Teve gg SUR ES Pakia Press the push button If the probe The jy STARTTEME
23. e supply circuit or a high or low temperature Temperature alarms by high and low temperature thresholds as shown below Room Temperature High Temperature Alarm s High Temperature i pa Low Temperature Time Adjusting the Alarm Settings The high and low alarm offsets range from 0 5 F to 40 F The critical temperature ranges from 40 0 F to 99 9 F 40 0 C to 37 7 C E Set the selection knob to G GAU PROBE TEMP ALARM LO HIGH The cur Comen LL i SET POINT TEMP CURVE rent low alarm temperature EESEEYYE oF Teme S gm um SPEED curve flashes on the display alternat PES gt sanowiorHiTmeRr ing with the word LO WE LANE C STARTTEMP v GOZE START TEMP MINIMUM SPEED BANDWIDTH 5 Use the adjustment knob to set the low alarm temperature to the desired value B Press the push button The current high alarm temperature flashes on the display alternating with the word HI B Usethe adjustment knob to set the high alarm offset to the desired value QM1337 rev 02 45 TROUBLESHOOTING GUIDE 46 QM1337 rev 02 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 cab
24. e can go from 0 5 F to 20 0 F 0 3 C to 11 1 C B Set the selection knob to STAGES 3 4 START TEMP The current Stage 3 starting temperature is displayed alternating with the letters ST3 Press the push button The current Stage 4 starting temperature is displayed alternating with the letters ST4 B Use the adjustment knob to adjust the temperature to the desired value Adjusting the Stage 5 Starting Temperature The Stage 5 starting temperature is the temperature at which the Stage 5 fans start running see the diagram above The hysteresis is fixed at 1 5 F and determines when the fans return toastop The difference between the starting temperature and the stage 4 starting temperature can go from 0 5 F to 20 0 F 0 3 C to 11 1 C Set the selection knob to STAGE 5 START TEMP The Stage 5 starting temperature is displayed alternating with the letters ST5 B Usetheadjustmentknobto adjust the temperature to the desired value 30 QM1337 rev 02 ST 5222 Dn Adjusting the Stage 6 Starting Temperature The Stage6 starting temperature is the temperature atwhich 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 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 B Set the selection knob to STAGE 6 START TEMP The Stage 6 starting tempe
25. e 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 E Viewing Minimum Maximum Temperatures The minimum and maximum temperatures are the lowest and highest tem perature values recorded since the last reset Temperatures values are averaged over all active probes B Set the selection knob to ROOM TEMPERATURE PROBE TEMP or OUTSIDE TEMP SETTINGS The room or outside temperature is displayed B Turn the adjustment knob clockwise by one notch The minimum temperature flashes on the display alternating with the letters Lo QM1337 rev 02 17 ST 5222 Turn the adjustment knob clockwise one notch further The maxi mum temperature flashes on the display alternating with the letters Hi Turn the adjustment knob clockwise a third notch The room or out side temperature is displayed again B 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 B 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 maxi mum temperature is displayed alternating with the letters Hi B Turn the adjustment knob clockwise a third notch The probe tem perature is displayed again
26. gh the same electrical knockout Do not run probe cables next to other power cables When crossing other power cables cross at 90 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 INE PP 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 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 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 QM 1337 rev 02 49 ST 5222 PROBLEM The cooling fans are not running o
27. h the letters ST5 or ST6 Use the adjustment knob to set the starting temperature to the desired value DET RTI WIDI PRoBE TEMP ALARM LOIMIGH STAGE 1 SET POINT TEMP CURVE id ULL OFF TEMP V v MINIMUM SPEED CURVE START gt BANDWIDTH TIMER Dr gt EZECH START STAGE 2 ey TEMP y SIARSETEMES adi SEZER START TEMP MINIMUM SPEED BANDWIDTH Press the push button The mist time on is displayed alternating with the word On Use the adjustment knob to set time on to the desired value Press the push button The mist time off is displayed alternating with the word OFF Use the adjustment knob to set time off to the desired value 40 QM1337 rev 02 HEATER SETTINGS STAGED HEATERS To configure your system for staged heaters set dipswitch 5 to OFF All heaters operate according to the average reading from all temperature probes and only one heater off temperature is needed Heating Heater B OFF Heater B ON Heater AON Heater A OFF du d L6 Temperature HEATERB HEATERA OFF Set Point START START 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 QM1337 rev 02 41 ST 5222 INDEPENDENTHEATERS To configure your system for independent heaters set dipswitch
28. inimum speed curve STAGE 1 MINIMUM SPEED CEEE oF eue X imi CURVE The current mini WW a ars EXAMPLE 2 mum speed flashes on the dis Eee at Mn MM play BANDWIDTH TEMPERATURE CURVE MINIMUM SPEED CURVE M Press the push button The word OFF is displayed indicating that Day Temperature Day Speed the minimum speed curve is deactivated If this is not the case deactivate the curve as described below POINT 1 d5 90 0 F d10 10 POINT 2 d20 85 0 F d20 20 Repeat the following steps for each of the six points Press the push button once again The word day is displayed alternating with a day number If you activated the temperature curve yesterday the current day num ber of the temperature curve is d6 Therefore if you activate the mini H 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 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 mum speed see example 2 M Press the push button once again The minimum speed for that day is displayed alternating with the letters SPd s If you activated the temperature curve six days ago the current day number of the temperature curve is d11 Therefore if you activate the U
29. ired value HM Setselection knob to HEATER B START TEMP The current starting temperature for Heater B is displayed alternating with the letters Ht b B Use the adjustment knob to adjust the starting temperature to the de sired value QM 1337 rev 02 43 ST 5222 ES Adjusting Off Temperatures The heater off temperature can provide substantial energy savings if cor rectly adjusted according to the outside temperature It is the temperature below the set point at which the heating units turn off see diagram above The off temperature is bounded above by the set point 10 F and below by the set point 20 F When using staged heaters only the heater A off temperature is needed E Set selection knob to HEATER A B Ge AUi PROBE TEMP OFF TEMP The current heater wien V is SET POINT TEMP CURVE A off temperature is displayed al mmm E EU iiivinsoees tuse 1 1 ternating with the letters Ht A START gt BANDWIDTH TIMER START s TR eya srART TEMP EZ START TEMP MINIMUM SPEED BANDWIDTH B Use the adjustment knob to adjust the off temperature to the desired value M Press the push button The current off temperature for Heater B is displayed alternating with the letters Ht b B Use the adjustment knob to adjust the off temperature to the desired value 44 QM 1337 rev 02 ALARM SETTINGS The controller sets off an alarm in the case of a power failure a fault in th
30. l ALL WIRING MUST BE DONE BY AN AUTHORIZED ELECTRICIAN IN AND MUST COMPLY WITH APPLICABLE CODES LAWS AND REGULATIONS BE SURE POWERIS OFF BEFORE DOING ANY WARNING WIRING TO AVOID ELECTRICAL SHOCKS AND EQUIPMENT DAM AGE 8 QM1337 rev 02 INE PP 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 ofthe 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 m Selecting a Motor Type for Stage 1 Refer to the list of motors on the following page to determine which type 1 to 5 is appropriate for the motors used m Set the selection knob to Genia PROBE TEMP STAGE 1 BANDWIDTH mers TIMER The Stage 1 bandwidth is m oror ux ss ccs MINIMUM SPEED CURVE displayed alternating with the START a GanoWOTH TIMER letters bd j START TEMP STARTIEM P BANDWIDTH B Pressthe push button three times The currently selected type is dis played alternating with the letters tYP B Usethe adjustment knob to adjust the type to the desired value M Return to the Stage 1 bandwidth display
31. l flash in cer tain cases and not in others BERELE The flashing indicates that the C value shown can be adjusted E A value that is not flashing V cannot be adjusted T 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 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 Light turns off QM1337 rev 02 15 TEMPERATURE SETTINGS TEMPERATURE UNITS Temperatures can be displayed in either Celsius or ON Fahrenheit units B Set internal switch 2 to the desired position ON to display temperatures in Celsius units OFF to display temperatures in Fahrenheit units 2 VIEWING TEMPERATURES IE 7n RULE ey PROBE TEMP LO HIGH 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 dis played separately alternating with the numerical value A SETPOINT TEMP CURVE PERN orc temp y EZCHIA START a Ga we A c a z STAGE 5 STA
32. le 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 selection knob A room probe is Refer to defective probes is set to ROOM defective The defective A room or outside Refer to defective probes probe pilot light probe is defective is on IN PPP 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 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 The stage 1 or 2 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
33. o STAGE 2 BANDWIDTH The current bandwidth for Stage 2 is displayed alternating with the letters bd M Use the adjustment knob to adjust the bandwidth to the desired value E Adjusting Stage 2 Minimum Speed The minimum speed can be adjusted between 10 and 100 of the full speed of the fans HM Setthe selection knob to STAGE 2 MINIMUM SPEED The current minimum speed for Stage 2 flashes on the display B Usethe adjustment knob to adjust the minimum speed to the desired value B 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 returnto a stop The difference between the starting temperature and the Stage 2 starting temperature bandwidth can go from 0 5 F to 20 0 F 0 3 C to 11 1 C B Set the selection knob to STAGES 3 4 START TEMP The current Stage 3 starting temperature is displayed alternating with the letters ST3 B Use the adjustment knob to adjust the temperature to the desired value QM1337 rev 02 29 ST 5222 D Adjusting the Stage 4 Starting Temperature The Stage 4 starting temperature is the temperature at which the Stage 4 fans start running see the diagram above The hysteresis is fixed at 1 5 F and determines when the fans returnto a stop The difference between the starting temperature and the stage 3 starting temperatur
34. ow 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 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 QM1337 rev 02 INE PP FULL SPEED FAN START UP In order to overcome the inertia of the ventilation system components and de ice the fan blades 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
35. r The heaters are not turning on continued 50 QM1337 rev 02 CAUSE 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 Be sure the cable is firmly plugged in 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 to repair the controller TECHNICALSPECIFICATIONS Supply 115 230 VAC 18 8 60 Hz L1 same phases as Stages 1 and 2 overload and overvoltage protection fuse F11 1A fast blow 12 VDC for AC back up supply can activate stages 3 through 6 if 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 Variable output 60 Hz 10A FAN 3 4 HP 115 VAC 1 5 HP 230VAC fuse F8 15A slow blow Stage 3 ON OFF output 115 230 VAC 60 Hz 30VDC 6AFAN 10A RES fuse F3 15A slow blow Stage 4 ON OFF output 115 230 VAC 60 Hz 30VDC 6AFAN 10A RES fuse F4 15A slow blow Stage 5 ON OFF output 115 230 VAC 60 Hz 30VDC 6AFAN 10A RES fuse F5 15A slow blow Stage 6 ON OFF output 115 230 VAC 60 Hz 30VDC 6AFAN 10A RES
36. rature is displayed alternating with the letters ST6 B Usetheadjustmentknobto adjust the temperature to the desired value QM 1337 rev 02 31 ST 5222 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 Temperature Curve d4dl0 d25 d35 d50 d70 d80 Days NOTE If the room temperature falls below the threshold value given in table 1 the fans will begin to run atthe 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 1337 rev 02 IN PP Table 1 STAG
37. se the adjustment knob to adjust the minimum speed to the de minimum speed curve today it will effectively be in operation the mo sired value ment you activate it In this case the current minimum speed will be a value between 10 and 20 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 unnecessary point of the curve iii Certain restrictions apply to reduce the risk of errors decreasing minimum speeds are not allowed the minimum speed variation cannot exceed 10 per day 34 QM 1337 rev 02 QM1337 rev 02 35 ST 5222 B Activating the Minimum Speed Curve If you have just finished specifying the points on the curve a Press the push button once again The word OFF flashes on the display B Turn the adjustment knob clockwise by one notch The word ON flashes on the display and the Temperature Curve Pilot Light turns on indicat ing that the minimum speed curve is now activated If you have previously specified the points on the curve B Setthe selection knob to STAGE 1 MINIMUM SPEED CURVE The current minimum speed flashes on the display a Press the push button to display the points of the curve currently de fined until the word OFF appears thirteen clicks B Turn the adjustment knob clockwise by one not
38. selection knob to STAGE 1 MINIMUM SPEED CURVE pon The current minimum speed for HERE ue EM med Stage 1 flashes on the display SEN a a STAGE 5 START START TEMP EH uH zunij TEMP lt bis Bizilazhuuiid PROBE TEMP Li Use the adjustment knob to ad smerrewe MINIMUM SPEED BANDWIDTH justthe minimum speed to the de 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 E Adjusting stage 1 Time On and Time Off B Set the selection knob to STAGE 1 BANDWIDTH TIMER The current bandwidth for Stage 1 is displayed alternating with the letters bd B Press the push button The current time on for Stage 1 flashes on the display alternating with the letters On B Use the adjustment knob to adjust time on to the desired value B Press the push button The current time off for Stage 1 flashes on the display alternating with the letters OFF B 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 QM1337 rev 02 27 ST 5222 VENTILATION SETTINGS B Adjusting the Stage 1 Bandwidth The Stage 1 bandwidth is the tempera ture interval within which the Stage 1 variable speed fans increase or decrease G dsl PROBE TEMP in speed proportionally to the ime PUES
39. t 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 number 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 flashes on the display B Press the push button The current day number is displayed B Use the adjustment knob to set the day number to the desired value mn Deactivating the Temperature Curve B Set the selection knob to SET POINT TEMP CURVE The current temperature set point flashes on the display B Pressthe push button to display the points of the curve actually de fined 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 HM Setthe selection knob to ROOM TEMPERATURE QM1337 rev 02 23 VENTILATION SETTINGS INE PP COOLING OPERATION If room temperature rises The ST 5222 controls two stages of variable speed fans Stages 1 and 2 e When room temperature lt Set Point stage 1 fans run at minimum two stages of constant speed fans Stages 3 and 4 and two optional stages speed according to the minimum ventilation cycle of constant speed fans Stages 5 and 6 The last cooling stage can also be configured
40. ted 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 preventwater 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 not make additional holes in the enclosure particularly on the top of the enclosure when using a SL 1400 communication board B6 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 twotypes of alarms on the market One type activates when currentis cut off at its input whereas the other activates when currentis supplied atits input Foran alarm ofthe firsttype usethe NO terminal as shown onthe wiring diagram Foran alarm of the second type use the NC termina
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