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Carrier AQUAZONE 50PEC09-18 User's Manual

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2. Ee e Gma o VOLTAGE LEAD COLOR SENSOR LEAVING WATER TEMPERATURE 15 WHT SENSOR SUPPLY AIR TEMPERATURE LON CONTROLLER ieee EH DIGITAL Un E We 265 BRN WALL SENSOR COM SEE NOTE 5 op DELUXE D Microprocessor LI PECES y j Control Logic H RED ALI 8 gt SEE Le O RED HP e ER i poc BIL sis 297 voc ed mem S CR Lt y bemm Ee A BRN o 0 A a Rvs BRN Q Ra A UPS Disable Enable IER ACC j LL AL2 DRY Se Ze le Ze Nacer RV on B RV on O E 4 acer Lt Kg 5 Dehumid Normal ER JI Functions ger ES H hi fandchumid r eg Boilerless 40 F 50 F CR FP1 FP2 Faults 3 1 i HP wii j 2 FAN SPEED SWITCH if Re wi len Sire Wa sai INEA sprice Wire FoR 2 LNATERHIS o ro o LUNES ONLY j 37 LEGEND NOTES AL Alarm Relay Contacts I 1 Compressor and blower motor thermally pro BM Blower Motor Relay Contactor Coil tected internally i CAP Capacitor 2 All wiring to the unit must comply with local B Circuit Breaker oN i i codes eS oo Condensate Overflow Sura 3 Transformer is wired to 115 V WHT lead for CR a Compressor Relay Thermistor 115 1 60 units 265 V BRN lead for 265 1 60 DM Damper Motor units 240 V ORG lead for 240 1 50 units or FP1 Sensor Water Coil Freeze Protection otto Circuit Breaker 208 V RED lead for 208 1 60 units FP2 Sensor Air Coil Freeze Protection Rewire transformer L1 connection if voltage is FSS Fan Speed Switc
3. 37 40 Unit Start Up Cooling 37 Operating Limits 37 Unit Start Up Heating 37 Unit Start Up with WSHP Open Controls 38 Flow Regulation 39 Antifreeze 39 Cooling Tower Boiler Systems 40 Ground Coupled Closed Loop and Plateframe Heat Exchanger Well Systems 40 OPERATION occiso 40 43 Power Up Mode 40 Units with Aquazone Complete C Control 40 Units with Aquazone Deluxe D Control 40 Units with WSHP Open Multiple Protocol 4 COMPLETE C AND DELUXE D BOARD SYSTEM TEST 43 45 Test Mode ve RE NEEN eet ad eed dda ayauya 43 WSHP Open Test Mode 44 Retry Mode 44 Aquazone Deluxe D Control LED Indicators 44 Page SERVICE ociosas 45 47 Unit Inspection 45 System Flushing 45 Water Coil 45 Refrigerant System 45 Condenser Cleaning nuanua 45 Condensate Pans 46 Blower Motors 46 Compressor 46 Safety Control Reset 46 Checking System Charge 47 Refrigerant Charging
4. 47 Air Coil Fan Motor Removal 47 Replacing the WSHP Open Controller s A EE 47 TROUBLESHOOTING 47 49 ThH ermist r 2 u u uni Penne neon wes 47 WSHP Open Controller 47 APPENDIX A WSHP OPEN SCREEN CONFIGURATION 50 55 START UP CHECKLIST CL 1 CL 2 SAFETY CONSIDERATIONS Installation and servicing of air conditioning equipment can be hazardous due to system pressure and electrical components Only trained and qualified service personnel should install repair or service air conditioning equipment Untrained personnel can perform basic maintenance func tions of cleaning coils and filters and replacing filters All other operations should be performed by trained service personnel When working on air conditioning equipment observe precau tions in the literature tags and labels attached to the unit and other safety precautions that may apply Improper installation adjustment alteration service mainte nance or use can cause explosion fire electrical shock or other conditions which may cause personal injury or property damage Consult a qualified installer service agency or your distributor or branch for information or assistance The qualified installer or agency must use factory authorized kits or accesso ries when modifying this product Refer to the individual instructions packaged w
5. 203 2 25 N 57 CONDENSATE 5 8 15 9 ID 272 VINYL HOSE 96 Left Hand Configuration LEGEND EPT External Pipe Thread IPT Internal Pipe Thread Dimension reduced by fitting if selected NOTE Dimensions shown are in inches Dimensions in parentheses are in millimeters Fig 1 50PEC09 15 Piping Dimensions OPTIONAL AUTO FLOW VALVE OPTIONAL 1 50 MOTORIZED OUT gt 38 WATER VALVE IN e WATER CONNECTIONS 0X 7 8 22 2 OD COPPER 3 4 IPT OR 3 4 EPT WATER f IN COMPRESSOR ACCESS WATER PANEL OUT 41 12 282 8 00 MIN E 203 y O Ey gt 1 75 44 CONDENSATE 5 8 15 9 ID 1 8 VINYL HOSE 47 Right Hand Configuration OPTIONAL OUT AUTOFLOW 35 IN VALVE gt OPTIONAL ae MOTORIZED WATER VALVE WATER CONNECTIO AN 7 8 22 WATER WATER COPPER 3 4 IN ouT BLOWER DECK 1 12 282 8 00 SC gt BLOWER ACCESS PANEL 25 86 CONDENSATE 5 8 15 9 ID VINYL HOSE 96 Left Hand Configuration LEGEND EPT External Pipe Thread IPT Internal Pipe Thread Dimension reduced by fitting if selected NOTE Dimensions shown are in inches Dimensions in parentheses are in millimeters Fig 2 50PEC18 Piping Dimensions 16 0 5 0 DISCHARGE 406 127 AIR
6. Avert GATIVLSNI 07313 1dS LVS HH 990 avo ON LM1 09 ma 26 S OMUOD 0901014 ldniniN U dO AHSM PUE IND D l lduioS YM SHUN Zz Du 3ATVA Y31YM LOH GalddNs 0314 OL LOANNOO ANY M WNIWHAL WO AYIM LOANNOOSIG S7100 1W3H38 Y3LVM LOH SOd 2 GATIVLSNI 07314 HOS L ILON W1VLAG st LOVLNOD O3TIVLSNI ES quails 990 a 310N3Y LJ T A qat OO HOLIMS IVO ON GATIVLSNI 071314 YadNVd 1N3A 0OVO dek ge GATIVLSNI 071313 3ATVA 1V3H38 1d IZINONODI l e l l l l l I I l l l l SNLWINGOW I md v AIv13q 338 Sf N3dO dHSM Hele ek oimgiocuet aoeds ainyesoduuay A Addne ipiuunH An H joejuo9 indu Acouednooo J9dUIeg Je episimo paso AISUUON elnjesedula Jajem Bulnes MO H9SAO ByesuspUuoy an3931 d3TIVLSNI 07313 13NYy Dy _ _ _ _ j ae 1dS Hz lelv s 9 i YOSN3S l HH SCAS Lvs quvog 9 3a131dWOOS V Eat 09 HY H 9 o NHO IL 310N M ANId A ma ui mg AH qatu qatu HN I I vld 9 D o Jolla HY V quvogq TOYLNOOD NVA YOLOANNOO Wo3 WOA vu 1dS LVS Hd 990 avo O N LM1 SNOILdO O3TIVLSNI 209 39VdS qala 27 S O1JUOD O90 01q B C HIN U dO dHSM PUE WDA d xni d
7. If unoccupied the SPT is greater than the unoccupied cooling set point If economizer cooling is available and active and the economizer alone is insufficient to provide enough cool ing OAT if available is greater than the cooling lockout temperature If all the above conditions are met the compressors will be energized as required otherwise they will be deenergized If cooling is active and should the SAT approach the minimum SAT limit the fan will be indexed to the next higher speed Should this be insufficient and if the SAT falls further equal to the minimum SAT limit the fan will be indexed to the maximum speed If the SAT continues to fall 5 F below the minimum SAT limit all cooling stages will be disabled During Cooling mode the reversing valve output will be held in the cooling position either B or O type as configured even after the compressor is stopped The valve will not switch position until the Heating mode is required The configuration screens contain the minimum SAT parameter as well as cooling lockout based on outdoor air temperature OAT Both can be adjusted to meet various specifications There is a 5 minute off time for the compressor as well as a 5 minute time delay when staging up to allow the SAT to achieve a stable temperature before energizing a second stage of capacity Likewise a 45 second delay is used when staging down After a compressor is staged off it may be rest
8. Damper Motor xo Circuit Breaker For 230 1 60 operation switch the RED and FP1 Sensor Water Coil Freeze Protection Relay Contacts N O ORG leads at L1 and insulate the RED lead FP2 Sensor Air Coil Freeze Protection oc o Clay Comtaci N 0 Transformer is energy limiting or may have a HP High Pressure Switch Switch Temperature circuit breaker JW1 Jumper Wire for Alarm f Pa y 4 FP1 thermistor provides freeze protection for LOC Loss of Charge Pressure Switch EES Switch High Pressure WATER When using ANTI FREEZE solutions PB Power Terminal Block cut JW3 jumper RAS Return Air Sensor SE Switch Low Pressure 5 For remote sensor position jumper J1 on upper RVS Reversing Valve Solenoid 2 pins TRANS Transformer Ground 6 For F position position jumper on both pins WV Water Valve For C position jumper on one pin i i iri i 7 Transformer secondary ground via Complete C Field Dina vollade Wiring q Mare Nut board standoffs and screws to control box Field Low Voltage Wiring Y Mate N Lok Ground available from top two standoffs as Printed Circuit Trace Optional wiring shown m i iri F 8 Mate N Lokt plug is optional Option Low Voltage Wiring Registered trademark of AMP Incorporated 9 Factory cut jumper JW1 Dry contact will be available between AL1 and AL2 Fig 17 50PEC Unit Manual or Auto Changeover with Complete C Controller Wiring 18 PB Power Suppl
9. Demand Controlled Ventilation IAQ Indoor Air Quality OAT Outdoor Air Temperature RH Relative Humidity SAT Supply Air Temperature SPT Space Temperature TPI Third Party Integration APPENDIX A WSHP SCREEN OPEN CONFIGURATION cont SCREEN NAME POINT NAME PASSWORD EDITABLE RANGE DEFAULT NOTES Auto Intermittant operation during both occupied and unoccupied periods Continuous Intermittant during unoccupied Continuous periods and continuous during occupied periods Always on fan operates continuously during both occupied and unoccupied periods Defines the delay time before the fan begins x Isa to operate after heating or cooling is started Defines the amount of time the fan will x 0 180 sec 45 sec continue to operate after heating or cooling is stopped z Provides capability to manually X Disable Enable Enable disable heating operation Provides capability to manually x Disable Enable Enable disable cooling operation Fan Mode Auto Continuous Always On Fan On Delay Fan Off Delay Heating Enable Cooling Enable Minimum SAT in ene Defines the minimum acceptable operating 7 Cooling x 40 60 F 50 F temperature for the Supply Air Configuration Maximum SAT in x 80 140 F 110 F Defines the maximum acceptable operating L Heating Ge I temperature for the Supply Air min Passwor S Em Dat Normally set to 100 if 2 position damper P amp or ventilation eege X 0 100 100
10. NOTE If the length of hose is too short De the resulting con nection would exceed the minimum bend radius of the hose substitute two lengths of flexible hose joined together with a field supplied standard NPT coupling and the flare fitting to pipe adapters provided with the hose kit Fig 35 3 Open all air vents Fill the system with water Do not al low system to overflow Bleed all air from the system Check the system for leaks and repair appropriately 4 Check and adjust the water and air level in the expansion tank 5 Verify all strainers are in place Start the pumps and sys tematically check each vent to ensure all air is bled from the system 6 Verify make up water is available Adjust make up water appropriately to replace the air that was bled from the system Pressure test and inspect the system for leaks and make any necessary repairs Check and adjust the water and air level in the expansion tank 7 Open a drain at the lowest point in the system Adjust the make up water replacement rate to equal the rate of bleed Continue to bleed the system until the water appears clean or for at least three hours whichever is longest then completely drain the system A NOTE Use standard coupling field supplied and hose adapters to join 2 hoses Fig 35 Temporary Connection for Flushing System Piping 8 Refill the system with clean chemically
11. gt gt 3 E ES i gt gt gt E ES gt DR SAA al gt E ES e SS 12 0 1219 i 909 Filter located behind return air grille and requires removal of cabinet front for access Y 50 13 12 0 305 BOTTOM VIEW R H PIPE AND ELECTRIC AREA 4 12 1 0 25 4 5 BE A A 105 1 0 25 REAR VIEW R H REAR ACCESS NOTE 2 lt 48 0 1219 NOTES 1 Dimensions are shown in inches Dimensions in parentheses are in millimeters 2 Access is reduced if optional disconnect box is selected 3 Optional autoflow valve motorized water valve and disconnect box are shown Fig 7 50PEC09 15 Front Return Cabinet Dimensions Right Hand Piping 16 00 5 00 DISCHARGE 406 127 AIR d ee 30 CONTROL ACCESS DOOR FRONT VIEW SIDE 533 SS SS SSS Sl E ee AS AS ASAS ee gt gt se se ee 555555555 ee AIR gt SSS SSS s 201 INLET gt SSS SSS SS SSS BSS 12 00 1372 t 305 Filter located behind return air
12. Status IAQ Alarm Status Alarm Status Comp o Alarm SAT Alarm Status Condensate Overflow Alarm Status Condenser Water Tem perature Alarm Status Filter Alarm Status Space RH Alarm Status OAT Alarm Status No Password Required Airside Linkage Status Condenser Water Linkage SAT Current linkage status if enabled Current linkage status if enabled Display SAT SAT Offset X O F Used to correct sensor reading Leaving Condenser Displays Leaving Condenser Water Temperature Water Temperature Sensor Leaving CW Offset Admin Password x 0 F Used to correct sensor reading Calibration Rnet Sensor level access only Temperature Rnet Offset X 9 9 10 0 F 0 F Used to correct sensor reading Displays Space RH value X 15 15 0 Used to correct sensor reading D SE RH Sensor Offset LEGEND BAS Building Automation System DCV Demand Controlled Ventilation IAQ Indoor Air Quality OAT Outdoor Air Temperature RH Relative Humidity SAT Supply Air Temperature SPT Space Temperature TPI Third Party Integration 50 APPENDIX A WSHP OPEN SCREEN CONFIGURATION cont RANGE DEFAULT Off Fan Only Economize SCREEN NAME POINT NAME Operating Mode Fan Operating Mode Occupancy Status Occupancy Control Outside Air Temperature SPT Status SPT Sensor Status Condensate Overflow Cooling Set Point Heati t Point Unit eating Set Poin Maintenance Set Poi
13. T5 WHT ACCEPTABLE ae FAN ENABLE 208 RED OUTSIDE CLASS 1 WIRING RELAY 530 ORG CONTROL BOX REQUIRED INSIDE COMP ae SLL vel A COMPRESSOR oe AI cooine _ Go EA FAN i DELUXE D Rel Hl aw __ A MICROPROCESSOR Cel LA COMMON I J SONTROLLOGIC X1SL DI aan _ _ SEE Li gt HP ALARM NOTE 6 I Loc TYPICAL HEAT RELAY AIW i A A PUMP T STAT rep AL Bay STATUS G FP1 SEE NOTE 5 ALS DAY ok TIME cLock re NOTE BAN db unoccureo a _ _ n FP2 H i L i RELAY RVS AN TEST L 1 a NLL H PINS tf co BRN YEL UE w Les i y 1 P3 JW3 SEE i N ORG RED A ee FP1LOW NOTE4 iloc yer Ayer ver T E Jwa ba On lt No1 oct H MA i E OVERRIDE i EH2 wm Demaret S LP N O SABLE OVERRIDE ACC2 ENABLE u ove OVERRIDE LAC ee m 2 UNIT STAGE 2 1 OFF ON ove com E 3 T STAT HEAT COOL 1h acc o R C HEAT PUMP C 2 FUNCTIONS CG ai AVONB RVONO Em3 5 Ca DEHUMID NORMAL 4 coo TRANSFORMER NOT D E e FUNCTIONS J Bae CR DIP SWITCH DIP SWITCH PACKAGE PACKAGE Blower Motor Blower Relay Capacitor Circuit Breaker LEGEND Sensor Condensate Overflow Compressor Relay Damper Motor Sensor Water Coil Freeze Protection Sensor Air Coil Freeze Protection Fan Speed Switch High Pressure Switch Jumper Wire for Alarm Loss of Charge Pressure Switch Night Low Limit Override Power Terminal Block Performance Monitor Reversing Valve Solenoid Transformer
14. TON EEN gt MNId I r aala ANY aanNddNS 0131 Y3dNYA l l 1N3N 0VO L E Nyg YOSN3S 209 HY 30VdS 30VdS 20 vw It 40 yu L aoe v I JD wt gt aver L v AIV13q 338 N3dO dSHM d3TIVLSNI 1313 25 O1JUOD 090 01q ldiiniN U dO dHSM pue q xni d YUM SHUN 9z Du 3ATVA HI LOH Gal Tdd0 1S 01314 OL 1O3NNOO ANY IM 1VNIAd31 WOU 201 LOANNOOSIG S7109 1V3H3ti HALVM LOH SOd Z G3TIV1SNI q13ld BOW L ILON V TYL JOVINO9 ar 990 L NHO J3LOn3 4 L 1 TA qaq 09 HOLIMS IO O N quvogq ainyesoduiay oeds ainyesoduay uiv Ajddns ipituunH onge joejuo du Aouedns99 Jadweg diy apisimo peso y IIPLLION aunyesodweay ejem unes NO H AO ayesuepuoy JOOP 13MO Y aNa9q1 GSTIVLSNI 071314 ANY I I I I k qal1dans 1313 3ATVA 1V3H38 fd3ZINONOO3 ONILVINGOW a GATIVLSNI 01314 ANY ganddns 1313 YAdNVvd LNSA 0VO Nd v7IVL30 338 OIA avs Ge Na Nyga LAT Lamy nyo q axn1aq LHM El cl ON3 NVd 112578 ma ia na TAA N3dO dHSM NYO ANId Nu Nyg qatu WI l l l YHOSNAS l 200 HH aovaS 3OvdS AN pal ci y A vu y AC yw 03 p I Lu 73 03 p HOSNIS J ldS Sabet
15. o En Closed Open Inactive Occupied Unoccupied Inactive N A Network Inactive Active Occupied Unoccupied Inactive Active Occupied Disable Enable Enable Disable Enable Disable Disable Enable Disable Disable Enable Disable 51 NOTES Displays unit operating mode Displays how the fan is configured to operate Displays the current occupancy status Displays the origin of the occupancy control Displays OAT Viewable only if OAT is a network broadcast Displays SPT Displays the SPT status Displays the connection status of the Rnet sensor Displays the status of the condensate overflow Displays the actual set point being used for cooling control Displays the actual set point being used for heating control Displays the offset values from the Rnet user set point adjustment that is being applied to the configured set points Displays the calculated set point being used for auxiliary heating control Displays the calculated set point being used for economizer control Displays the ventilation damper position calculated by the DCV control Displays the actual number of compressor stages operating Displays SAT Used to reset the filter alarm timer after the filter has been cleaned or replaced Displays the state of the condensate overflow switch contact Displays the state of the external remote occupancy input switch contact Provides capability to force the equipment to operate in
16. x x Under voltage Check power supply and 24 vac voltage before and during operation Check power supply wire size Check compressor starting Check 24 vac and unit transformer tap for correct power supply voltage x x Over voltage Check power supply voltage and 24 vac before and during operation Check 24 vac and unit transformer tap for correct power supply voltage x Xx Compressor overload Check and replace if necessary x X Controlboard Reset power and check operation x x unitselection Unit may be oversized for space Check sizing for actual load of space X J x Compressor overload Check and replace if necessary x lt Xx Compressor overload Check compressor overload Replace if necessary Thermostat wiring Check Y and W wiring at heat pump Jumper Y and R for compressor operation in Test mode gt x gt lt gt lt gt x gt x gt lt gt gt x LEGEND FP Freeze Protection HP High Pressure LED Light Emitting Diode LP Low Pressure RV Reversing Valve 48 FAULT Table 18 Troubleshooting cont COOLING POSSIBLE CAUSE SOLUTION Only Compressor Runs x x Thermostat wiring Check G wiring at heat pump Jumper G and R for fan operation Check Y and W wiring at heat pump Jumper Y and R for compressor operation in Test mode Unit Does Not Operate in Cooling Insufficient Capacity Not Cooling or Heating Properly High Head Pressure Low Suction Pressure Low Di
17. Check for dirty air filter and clean or replace Check fan motor operation and airflow restrictions High external static Check duct design and downstream interference MEA nens Too much cold vent air Bring entering air temperature within design parameters Check for refrigerant leaks x Too high airflow Check blower xXx _ Poorperformance See Insufficient Capacity above px Too high airflow Check blower OOO A is r m Recheck loads and sizing check sensible cooling load and heat pump capacity H Light Emitting Diode Low Pressure Reversing Valve 49 APPENDIX A WSHP OPEN SCREEN CONFIGURATION SCREEN NAME POINT NAME PASSWORD EDITABLE RANGE DEFAULT NOTES Off Fan Only Economize Cooling Heating Cont Fan Displays unit operating mode Test Start Delay Dehumidify BEEN E j Displays SPT lo ER Displays SAT Displays leaving condenser water temperature r Displays entering condenser F water temperature Value will not update when compressor is operating Operating Mode Condenser Leaving Temperature Condenser Entering Temperature Off Low Speed Medium Speed High Speed On No P d A A al SEH 0 100 Ys Displays compressor capacity Displays current damper position 0 100 Viewable only if Ventilation DMP Type 2 position or DCV 0 100 Displays position of economizer valve Displays position of auxi
18. F CL 1 HEATING CYCLE ANALYSIS ft wg SST e lt SATURATED SY F SUCTION NS TEMPERATURE 2 SUCTION E F COMPRESSOR EXPANSION VANE DISCHARGE KS i LIQUID LINE F F ft wg ftwg WATER IN WATER OUT LOOK UP PRESSURE DROP IN TABLE 12 TO DETERMINE FLOW RATE COOLING CYCLE ANALYSIS ft wg SST SATURATED SUCTION 2 TEMPERATURE 2 SUCTION F gt COMPRESSOR EXPANSION VALVE q DISCHARGE LIQUID LINE F F ft wg ft wg WATER IN WATER OUT gt LOOK UP PRESSURE DROP IN TABLE 12 TO DETERMINE FLOW RATE HEAT OF EXTRACTION ABSORPTION OR HEAT OF REJECTION FLOW RATE gpm x TEMP DIFF DEG F x FLUID FACTOR Btu hr SUPERHEAT SUCTION TEMPERATURE SATURATED SUCTION TEMPERATURE DEG F SUBCOOLING SATURATED CONDENSING TEMPERATURE LIQUID LINE TEMPERATURE DEG F Use 500 for water 485 for antifreeze 97B0035N06 Copyright 2009 Carrier Corporation Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500052 01 Printed in U S A Form 50PEC 2SI CL 2 7 09 Replaces 50PEC 1SI CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE
19. Filter located inside and at top of air inlet area Rotate filter latch forward filter rack CONTROL ACCESS DOOR can be pulled forward 3 to 4 FRONT VIEW for filter access R H PIPE AND 48 0 ELECTRIC AREA NOTE 2 BOTTOM VIEW 2 12 54 R H REAR REAR VIEW ACCESS 21 0 NOTE 2 533 DAMPER OPENING y K 125 ME 13 j 298 de 249 48 0 1219 NOTES 1 Dimensions are shown in inches Dimensions in parentheses are in millimeters 2 Access is reduced if optional disconnect box is selected 3 Optional autoflow valve motorized water valve and disconnect box are shown Fig 3 50PEC09 15 Bottom Return Cabinet Dimensions Right Hand Piping 16 00 5 00 DISCHARGE 89 406 127 AIR gt Filter located inside and at CONTROL ACCESS DOOR top of air inlet area Push SIDE tabs up and back to release FRONT VIEW VIEW filter for replacement ee INLET 11 50 4 09 m um 12 00 1372 509 54 00 i R H PIPE AND 1372 ELECTRIC AREA NOTE 2 TE 6 88 BOTTOM VIEW SES RN Cl 342 64 Lo z5 19 1 75 3 00 Sg 4 50 5 1 00 25 Ga 76 g Y i 1 00 25 AMBAS REAR VIEW ACCESS NOTE 2 DAMPER OPENING 11 75 le 9 81 A 298 249 lt 54 00 1372 NOTES 1 Dimensions are shown in inches Dimensions in parentheses are in millimeters 2 Access is reduced if
20. PROTOCOL LEGEND NOTES AL Alarm Relay Contacts 1 Compressor and blower motor thermally pro BM Blower Motor Relay Contactor Coil tected internally BR Blower Relay 2 All wiring to the unit must comply with local i A i i codes Ear Ce ier Solenoid Coll 3 Transformer is wired to 115 V WHT lead for co Sensor Condensate Overflow P 115 1 60 units 265 V BRN lead for 265 1 60 CR Compressor Relay o EE units 240 V ORG lead for 240 1 50 units or DM Damper Motor oto Circuit Breaker 208 V RED lead for 208 1 60 units FP1 Sensor Water Coil Freeze Protection Relay Contacts N O Rewire transformer L1 connection if voltage is FP2 Sensor Air Coil Freeze Protection o o elay Contacts N O 230 1 60 or 220 1 50 insulate unused lead FSS Fan Speed Switch ep Switch Temperature 4 FP1 thermistor provides freeze protection for HP High Pressure Switch A WATER When using ANTI FREEZE solutions Jwi Jumper Wire for Alarm e Switch High Pressure cut JW3 jumper Loc Loss of Charge Pressure Switch 5 Refer to LonWorkst Installation Application and PB Power Terminal Block SE Switch Low Pressure Operation manual for control wiring to the unit RVS Reversing Valve Solenoid Low voltage wiring must be class 1 and voltage TRANS Transformer Ground rated equal to or greater than unit supply WV Water Valve voltage ammm Field Line Voltage Wirin Wire Nut 6 Factory cut jumper JW1 D
21. Water Valve Field Line Voltage Wiring lt olbo 2990 Field Low Voltage Wiring Printed Circuit Trace Option Low Voltage Wiring Relay Contactor Coil Solenoid Coil Thermistor Circuit Breaker Relay Contacts N O Switch High Pressure Switch Low Pressure Ground Wire Nut Mate N Lock Optional wiring NOT i 2 3 ES Compressor and blower motor thermally protected internally All wiring to the unit must comply with local codes Transformer is wired to 115 V WHT lead for 115 1 60 units 265 V BRN lead for 265 1 60 units or 208 V RED lead for 208 1 60 units For 230 1 60 operation switch the RED and ORG leads at L1 and insulate the RED lead Transformer is energy limiting or may have a circuit breaker FP1 thermistor provides freeze protection for WATER When using ANTI FREEZE solutions cut JW3 jumper Typical heat pump thermostat wiring shown Refer to thermostat Installation Instructions for wiring to the unit 24 V alarm signal shown For dry alarm con tact cut AL2 DRY JW4 jumper and dry contact will be available between AL1 and AL2 Transformer secondary ground via Deluxe D board standoffs and screws to control box Ground available from top two standoffs as shown Fig 22 50PEC Unit Remote Mounted Thermostat with Deluxe D Controller Wiring 23 PREMIER COMPLETE LINK C PWR CONTROL HS1 EXH RVS LEGEND CR Control Relay LWT Leaving Water
22. death and or equipment damage Wiring Sensors to Inputs Sensors can be wired to the WSHP Open controller s inputs See Table 4 All field control wiring that connects to the WSHP Open con troller must be routed through the raceway built into the corner post The raceway provides the UL required clearance between high and low voltage wiring 1 Pass control wires through the hole provided in the corner post 2 Feed the wires through the raceway to the WSHP Open controller 3 Connect the wires to the removable Phoenix connectors 4 Reconnect the connectors to the board 31 Field Supplied Sensor Hardware The WSHP Open con troller is configurable with the following field supplied sen sors See Table 4 Table 4 Field Supplied Sensors for WSHP Open Coniroller SENSOR NOTES Space Temperature Sensor Field Installed Must be used with SPT WSHP Open controller Outdoor Air Temperature Sensor Indoor Air Quality Sensor Separate Sensor Space Relative Humidity Sensor NOTE BACviewf Handheld or Virtual BACview can be used as the user interface For specific details about sensors refer to the literature sup plied with the sensor Wiring a SPT Sensor A WSHP Open controller is connect ed to a wall mounted space temperature SPT sensor to moni tor room temperature using a Molex plug The WSHP Open system offers the following SPT sensors See Table 5 Network Sensor Required only for de
23. it can also prevent erosive water flow rates 6 Standby Pump Verify the standby pump is properly in stalled and in operating condition 7 System Control To ensure no catastrophic system fail ures occur verify system controls are functioning and the sequencing is correct 8 Freeze Protection for Water Systems Verify freeze protection is provided for the outdoor portion of the loop water system Inadequate freeze protection leads to expensive repairs A CAUTION To avoid equipment damage DO NOT leave system filled in a building without heat during the winter unless anti freeze is added to system water Condenser coils never fully drain by themselves and will freeze unless winterized with antifreeze 9 System Water Loop Verify all air is bled from the sys tem Air in the system impedes unit operation and causes corrosion in the system piping 10 Unit Filters To avoid system damage and to provide maximum performance ensure the unit filter is clean 11 Unit Fans Manually rotate fans to assure free rotation Ensure fans are properly secured to the fan shaft Do not oil fan motors on start up since they are lubricated at the factory 12 System Control Center To ensure control of the tempera ture set points for operation of the system s heat rejector and boiler examine the system control and alarm panel for proper installation and operation Table 9 Water Quality Guidelines HX CLOSED CONDITION RECIR
24. should the compressor capacity be insufficient or a compressor failure occurs Unless a compressor fault condition exists the valve will only operate to supplement the heat provided by the compressor if the space temperature falls more than one degree below the desired heating set point The valve will be con trolled so the SAT will not exceed the maximum heating SAT limit Two Position Hot Water Steam Heating Reheat The con trol can operate a two position NO or NC hot water or steam valve connected to a coil on the discharge side of the unit and supplied by a boiler in order to maintain the desired heating set point should the compressor capacity be insufficient or a com pressor failure occurs Unless a compressor fault condition ex ists the valve will only open to supplement the heat provided by the compressor if the space temperature falls more than one degree below the desired heating set point The valve will be controlled so the SAT will not exceed the maximum heating SAT limit The heat stage will also be subject to a 2 minute minimum OFF time to prevent excessive valve cycling Single Stage Electric Auxiliary Heat The control can op erate a field installed single stage of electric heat installed on the discharge side of the unit in order to maintain the desired heating set point should the compressor capacity be insufficient or a compressor failure occurs Unless a compressor fault con dition exists the heat stage will
25. A WSHP SCREEN OPEN CONFIGURATION cont SCREEN NAME POINT NAME PASSWORD EDITABLE RANGE DEFAULT of Fan Speeds G Output Type Compressor Stages Reversing Valve Type Leaving Air Auxiliary Heat Type Entering Air Water Economizer Type 2 Position Water Valve Type Modulating Water Valve Type Ventilation Damper Damper Actuator Type Humidity Sensor Factory Dehumidifica tion Reheat Coil Occupancy Input Logic Condensate Switch Alarm Delay Condensate Switch no oO Admin Password level access only X X X X x x x x x x x x x x x x x x x x O type output B type output None 2 Position HW 1 Stage Electric Modulating HW None 2 Position Modulating Normally Closed Normally Open Normally Closed Normally Open 65 100 F One Stage Two Stages DS One Stage O type None None Normally Closed Normally Closed 0 10 volt None Occupied NOTES Used to set number of fan motor speeds When set to Fan On G output is energized when ever any fan speed is active required for ECM and Fan control board When set to Fan Low output is only energized for Low Speed Defines the number of stages of compression Determines reversing valve signal output type Determines Auxiliary Reheat Coil Type Determines Entering Air Economizer Coil Type Determines type of 2 position water valve used Determines type of modulating water valve used Det
26. A COOLING IT PM DISABLED K NOTE 4 FAN a G m2 STAGE 2 2 1 vo FRZ R D _24 vac c 3 NOT USED m4 NOT USED BRN oA 9pys c D 1 COMMON SC DI ALARM KS 5 FP1 FP2 d k Pit ch OFF ON FAULTS 3 1 NOT USED Lj lot Ne YEL co ALARM SEE f IRELAY NOTE 6 COMPLETE C u YEL MICRO PROCESSOR CONTROL LOGIC Optional wiring COMPLETE Ss NOTES CONTROL Compressor and blower motor thermally protected internally LEGEND 2 All wiring to the unit must comply with AL Alarm Relay Contacts i ircuj local codes BM Blower Mei Printed Circuit Trace 3 Transformer is wired to 115 V WHT lead BR Blower Relay Option Low Voltage for 115 1 60 units 265 V BRN lead for CAP Capacitor Wiring ee units or 208 V RED lead for CB Circuit Breaker o Jo Relay Contactor Coil 208 1 60 units co Sensor Condensate Overflow 2 For 2901 60 operation switch the RED CR Compressor Relay A i i and ORG leads at L1 and insulate the DM Damper Motor Solenoid Coll RED lead FP1 Sensor Water Coil Freeze Protection Th ist Transformer is energy limiting or may FP2 Sensor Air Coil Freeze Protection oo lodos have a circuit breaker ros Fan Speed SE 8 oo Circuit Breaker 4 FP1 thermistor provides freeze protection igh Pressure Switc for WATER When using ANTI FREEZE JW1 Jumper Wire for Alarm Clee NGAY eae solutions cut JW3 jumper LOC _ Loss of Charge Pressure Switch
27. Complete C Control DIP Switches The Com plete C control has one DIP switch block with five switches See Fig 17 18 and 21 PERFORMANCE MONITOR PM DIP switch 1 will enable or disable this feature To enable the PM set the switch to ON To disable the PM set the switch to OFF STAGE 2 DIP switch 2 will enable or disable compressor delay Set DIP switch to OFF for Stage 2 in which the compres sor will have a 3 second delay before energizing SWITCH 3 AND SWITCH 4 Not used FREEZE PROTECTION PI DIP switch 5 is used to initiate one or 3 tries for the FP1 fault If there is water freeze protection for the water coil then DIP switch 5 can be set to lock out on the FP1 fault after one try ON One try OFF 3 tries Deluxe D Control Jumper Settings See Fig 19 20 and 22 WATER COIL FREEZE PROTECTION FP1 LIMIT SETTING Select jumper 3 JW3 FP1 Low Temp to choose FP1 temperature limit of 10 F or 30 F To select 30 F as the temperature limit DO NOT clip the jumper To select 10 F as the limit clip the jumper ALARM RELAY SETTING Select jumper 4 JW4 AL2 Dry for connecting alarm relay terminal AL2 to 24 vac R or to remain as a dry contact no connection To connect AL2 to R do not clip the jumper To set as dry contact clip the jumper LOW PRESSURE SETTING The Deluxe D control can be configured for low pressure setting LP Select jumper 1 JW1 LP Norm Open for choosing between low p
28. ISO ASHRAE Standard 13256 1 rating test for initial start up in winter IMPORTANT These operating limits are not normal or continuous operating conditions It is assumed that such a start up is for the purpose of bringing the building space up to occupancy temperature Unit Start Up Heating 1 Adjust the unit thermostat to the warmest setting and turn the fan speed switch to HI If the unit has an optional MCO thermostat set the selector switch to Heat The blower should start immediately and after the time delay is complete the compressor will start 2 Once the unit has begun to run check for warm air delivery at the unit grille Again the installing contractor must list the serial number of any machine that does not function 3 Log the unit operating conditions at initial start up for each unit to establish a permanent operating record 4 Select low fan speed Airflow should decrease and com pressor should continue to operate 5 Slowly turn thermostat toward cooler position Both fan and compressor should shut off when thermostat set point equals room temperature Room temperature must be above 65 F for unit to shut off Unit Start Up with WSHP Open Controls The WSHP Open is a multi protocol default BACnet con troller with extensive features flexible options and powerful capabilities The unit comes from the factory pre programmed and needs minimal set up to function in a BAS Building Automation Sy
29. Installation Guide Use the specified type of wire and cable for maximum signal integrity See Table 6 Table 6 Rnet Wiring Specifications RNET WIRING SPECIFICATIONS 4 conductor unshielded CMP Description plenum rated cable Conductor 18 AWG Maximum Length 500 ft Jacket white Wiring black white green red 32 to 167 F Recommended Coloring UL Temperature Voltage 300 vac power limited Listing UL NEC CL2P or better LEGEND AWG American Wire Gage CMP Communications Plenum Cable NEC National Electrical Code UL Underwriters Laboratories To wire the SPT sensor to the controller 1 Partially cut then bend and pull off the outer jacket of the Rnet cable s being careful not to nick the inner insulation 2 Strip about 4 in of the inner insulation from each wire See Fig 34 OUTER JACKET INNER INSULATION Fig 34 Rnet Cable Wire 3 Wire each terminal on the sensor to the same terminal on the controller See Fig 25 29 Table 7 shows the recom mended Rnet wiring scheme Table 7 Rnet Wiring 25 IN WIRE TERMINAL Red 12 v Black Rnet White Rnet Green Gnd NOTE The wire should be connected to the terminal shown Wiring a Supply Air Temperature SAT Sensor SAT sensor is required for reheat applications If the cable used to wire the SAT sensor to the controller will be less than 100 ft an unshielded 22 AWG American Wire Gage cable should be used I
30. Plate is Neutral on 265V Systems 4 BLU Use copper conductors only Ground Compressor See Note 2 u gt AA YEL Refer to Disconnect RR box for optional tee eer 0 power supply connection LON PB OPTIONAL L2 ribbed Optional Cord Ground Connection L1 plain See Note 3 CR Trans i I i Kan i OPTIONAL UNITS WITH L WATER HPS 0 YI BEK ATA11C03 ATM11C02 Heat Pump T stat wRAS SEE NOTE 5 9 1 NOTE 8 gt gt ATM11C02 amp ATA11C03 w RAS THERMOSTAT F 2 CAPACITOR WIRING H BLU ALTERNATE DUAL CAPACITOR TERMINAL LOCATIONS AND PLASTIC TERMINAL INSULATOR COLORS BLOWER MOTOR WIRING i i i i i es a i I UNIT SIZE POLEA POLEB i i i i Complete C H BLACK BLACK BLACK 09 18 4 F BRN a ur i HAVE HIGHEST RATING 4 COMPR CAP WIL E H oi ee im GREEN WHITE BL CK LEGEND NOTES AL Alarm Relay Contacts 1 Compressor and blower motor thermally pro BM Blower oe Relay Contactor Coil tected internally BR Blower Relay 2 All wiring to the unit must comply with local i o Aro i i codes cee ee SERIES 3 Transformer is wired to 115 V WHT lead for Sensor Condensate Overtlo 115 1 60 units 265 V BRN lead for 265 1 60 Gi SE Relay SSES AR Thermistor units or 208 V RED lead for 208 1 60 units DM
31. YUM SYUN gz Du 3ATVA YALVM LOH GalddNs 1314 OL LOANNOO ANY IM IYNINWYL WOU SHIM LOANNOOSIC S7109 IWAHAY H31VA LOH SOd 2 GATIVLSNI 071314 HOJ L ILON VIVO sr z slo LOVLNOO O3TIVLSNI a l aala 390 L SLOWaY T _ 734 aay 09 HOLIMS LVO14 ON quvog a axn1aa L o N oa a Hid a ei a YN UI NVL m NYO GATIVLSNI 071313 YadWvd AN3A GVO emgeet oeds emgeet A Addne Apiun engejey joejuo indu Aouedns09 Jedweq diy apisino p sojo ewJoN aunyesodua Log punes MOJH AQ AJESUSPUO aNn3931 N3dO dHSM 1dS LVS HH 990 avo IN LM1 GATIVLSNI 07313 SlsiSlololrio Z Zei lo El ac z Edla LILON YOLOANNOO Wo3 l ee es _ _AYOSN3S jas l 13NY l l zOY s vivia gas sr ptt I o Skkleklcw 5 l er 1 E CTO GATIVLSNI OH C Z 0 TUU AAWA 1V3H38 232 33 HOSN3S 93ZINONO93 x XZ HH 3OVdS DNILWINGOW ipa el Laas _ lt otow 5 j1 I t vu L Se el joel gt aaa a gt k Se s A 3 3 o o O vu l Sn A vu Sa e I le R Ne aay H LI 209 JOWdS Nag AAA WH REES SE FE Dl ii i EE Ee Tr H IW Vekdodolz ianlolaluleal H I Ww V 5 u OIA auvog AHO JOYLNOD NV3 o3 AE
32. grille and requires removal of cabinet front for access R H PIPE AND ELECTRIC AREA 12 00 NOTE 2 305 408 1 00 25 NU F A 1 00 25 REAR VIEW 21 00 533 RH REAR ACCESS NOTE 2 Y a 54 00 1372 NOTES 1 Dimensions are shown in inches Dimensions in parentheses are in millimeters 2 Access is reduced if optional disconnect box is selected 3 Optional autoflow valve motorized water valve and disconnect box are shown Fig 8 50PEC18 Front Return Cabinet Dimensions Right Hand Piping 10 21 Control Access Door FRONT VIEW HL 00 AAA i AN PURA lui AM TI lui AM TT IT NS LULU dul LUN del NN lui AM TI lui AM WII TTT lui AM TI LLL Filter located behind return air grille and requires removal of cabinet front for access 48 0 L H Pipe amp Electric Area Note 2 BOTTOM VIEW 105 REAR VIEW e 48 0 7 9 201 1219 Dimensions are shown in inches Dimensions in parentheses are in millimeters 2 Access is reduced if optional disconnect box is sel
33. hoses are used unions are not necessary 3 Install strainers at the inlet of each system circulating pump IMPORTANT Since loop temperatures are normally between 60 and 90 F pipe sweating and heat loss do not occur at normal ambient temperature conditions Insulation must be installed on loop water piping on those sections that run through unheated areas or are located outside the building If loop temperatures are expected below the ambient dew point the optional internal insulation extended range package must be ordered A CAUTION DO NOT bend or kink supply lines or hoses Damage to unit may result 4 Before making the final water connections flush the sys tem as described in the Pre Start Up section of this manual After flushing the system connect piping and hoses to the proper supply return and condensate connec tions of the unit NOTE When necessary use adapters to connect hoses 5 Install any other system components as required follow ing manufacturer s instructions 6 Reinstall the front cabinet by carefully lowering the front cabinet over the chassis onto the backplate Step 7 Install Condensate Piping Connect the unit condensate drain to the building condensate drain with a flexible nonpressure rated 5 g in 16 mm ID plastic hose Avoid kinks in this hose to ensure an unobstructed flow of con densate from the unit to the drain The horizontal run of the condensate hose is usually too sh
34. only operate to supplement the heat provided by the compressor if the space temperature falls more than one degree below the desired heating set point The heat stage will be controlled so the SAT will not exceed the maximum heating SAT limit The heat stage will also be sub ject to a 2 minute minimum OFF time to prevent excessive cycling INDOOR AIR QUALITY IAQ AND DEMAND CON TROLLED VENTILATION DCV If the optional in door air quality sensor is installed the WSHP Open controller can maintain indoor air quality via a modulating OA damper providing demand controlled ventilation The control operates the modulating OA damper during occupied periods The con trol monitors the CO level and compares it to the configured set points adjusting the ventilation rate as required The control provides proportional ventilation to meet the requirements of ASHRAE American Society of Heating Refrigerating and Air Conditioning Engineers specifications by providing a base ventilation rate and then increasing the rate as the CO level in creases The control will begin to proportionally increase venti lation when the CO level rises above the start ventilation set point and will reach the full ventilation rate when the CO level is at or above the maximum set point A user configurable min imum damper position ensures that proper base ventilation is delivered when occupants are not present The IAQ configura tions can be accessed thro
35. ope Switch High Pressure 5 Typical heat pump thermostat wiring PB Power Terminal Block shown Refer to thermostat Installation PM Performance Monitor _ a Switch Low Pressure Instructions for wiring to the unit RVS Reversing Valve Solenoid 6 24 V alarm signal shown For dry alarm TRANS Transformer l Ground contact cut JW1 jumper and dry contact Wv Water Valve will be available between AL1 and AL2 Field Line Voltage Wiring q Wire Nut 7 Transformer secondary ground via Com i iri N plete C board standoffs and screws to A yotage Wiring V Mate N Lock control box Ground available from top two standoffs as shown Fig 21 50PEC Unit Remote Mounted Thermostat with Complete C Controller Wiring 22 AL BM BR CAP Alarm Relay Contacts POWER SUPPLY GROUND REFER TO DATA PLATE USE COPPER CONDUCTORS ONLY EE NOTE 2 S REFER TO DISCONNECT BOX FOR OPTIONAL POWER SUPPLY CONNECTION OPTIONAL L2 ribbed p GROUND L1 plain CORD CONNECTION SYSTEMS NEUTRAL ON 265V COMPRESSOR L YEL BRN TRANSEORMER PRIMARY u LEAD COLORS SEE V VOLTAGE LEAD COLOR CLASS 1 OR 2 WIRING r
36. operates the fan con tinuously during both occupied and unoccupied periods In the default mode Continuous the fan will be turned on whenever any one of the following is true The unit is in occupied mode as determined by its occu pancy status There is a demand for cooling or heating in the unoccu pied mode There is a call for dehumidification optional When power is reapplied after a power outage there will be a configured time delay of 5 to 600 seconds before starting the fan There are also configured fan delays for Fan On and Fan Off The Fan On delay defines the delay time 0 to 30 seconds default 10 before the fan begins to operate after heating or cooling is started while the Fan Off delay defines the delay time 0 to 180 seconds default 45 the fan will continue to op erate after heating or cooling is stopped The fan will continue to run as long as the compressors heating stages or the dehu midification relays are on If the SPT failure alarm or conden sate overflow alarm is active the fan will be shut down imme diately regardless of occupancy state or demand Fan Speed Control During Heating Whenever heat is re quired and active the control continuously monitors the sup ply air temperature to verify it does not rise above the config ured maximum heating SAT limit 110 F default As the SAT approaches this value the control will increase the fan speed as required to ensure the SAT will remain
37. optional disconnect box is selected 3 Optional autoflow valve motorized water valve and disconnect box are shown Fig 4 50PEC18 Bottom Return Cabinet Dimensions Right Hand Piping DISCHARGE 3 320 a AIR E 38 LO 28 ed Filter located inside and at top of air inlet area Rotate filter latch forward filter rack SIDE can be pulled forward 3 to 4 VIEW for filter access FRONT VIEW 25 9 658 INLET 1 75 11 44 5 292 4 9 12 0 125 805 gt L H PIPE AND 6 88 ELECTRIC AREA 174 254 NOTE 2 BOTTOM VIEW 0 75 2 12 54 E 19 1 75 44 3 00 76 REAR VIEW H REAR ACCESS NOTE 2 NOTES 1 Dimensions are shown in inches Dimensions in parentheses are in millimeters 2 Access is reduced if optional disconnect box is selected 3 Optional autoflow valve motorized water valve and disconnect box are shown Fig 5 50PEC09 15 Bottom Return Cabinet Dimensions Left Hand Piping 1 50 a 320 38 Filter located inside and at top of air inlet area Rotate filter latch forward filter rack can be pulled forward 3 to 4 for filter access FRONT VIEW DISCHARGE AIR 89 Ne 30 SIDE VIEW 25 90 658 1 75 INLET EE im 44 5 292 4 90 125 12 00 305 54 00 1372 L H PIPE AND 6 88 10 00 ELECTRIC AREA 1
38. range specifications of the unit compressor and fan motor 2 System Water Temperature Ensure temperature is within an acceptable range shown in Table 8 When conducting this check also verify proper heating and cooling set points Table 8 Air and Water Limits 50PEC UNIT HEATING F Min Ambient Air 50 Rated Ambient Air so 70 Max Ambient Air 10 85 Min Entering Air 50 Rated Entering Air dry bulb wet bulb 70 Max Entering Air dry bulb wet bulb 80 Min Entering Water 20 Normal Entering Water 70 Max Entering Water 90 NOTES 1 2 3 Minimum air and water conditions can only be used at nominal flow rates 50PEC units may have up to two values at maximum or minimum with all other parameters at normal conditions Operating limits shown are for start up not continuous operation It is assumed that such a start up is for the purpose of bringing the space to desired occupancy temperature 34 3 System Water pH Verify system water is slightly alkaline pH 7 5 to 8 5 Proper pH promotes the longevity of the hoses and heat exchangers See Table 9 4 Closed Type Cooling Tower Open Tower with Heat Ex changer Check equipment for proper temperature set points and operation 5 Balanced Water Flow Rate to Heat Pump Record the inlet and outlet water temperatures as each heat pump unit is started This check will eliminate nuisance unit tripouts resulting from water velocities that are either too low or too high
39. set point of 40 F If switch 8 is set for 50 F then the compressor will be used for heating as long as the FP1 is above 50 F The compressor will not be used for heating when the FP1 is below 50 F and the compressor will operate in emergency heat mode staging on EH1 and EH2 to provide heat If a thermal switch is being used instead of the FP 1 thermistor only the compressor will be used for heating mode when the FP1 terminals are closed If the FP1 terminals are open the compressor is not used and the control goes into emergency heat mode DIP SWITCH BLOCK 2 S2 The following set of DIP switches is used to configure accessory relay options Switches 1 to 3 These DIP switches provide selection of Accessory 1 relay options See Table 10 for DIP switch combinations Table 10 DIP Switch Block S2 Accessory 1 Relay Options ACCESSORY 1 DIP SWITCH POSITION RELAY OPTIONS Digital NSB Water Valve Slow Opening LEGEND NSB Night Setback NOTE All other DIP switch combinations are invalid Switches 4 to 6 These DIP switches provide selection of Accessory 2 relay options See Table 11 for DIP switch combinations Table 11 DIP Switch Block S2 Accessory 2 Relay Options ACCESSORY 2 DIP SWITCH POSITION RELAY OPTIONS Digital NSB Water Valve Slow Opening LEGEND NSB Night Setback NOTE All other switch combinations are invalid Auto Dehumidification Mod
40. should be used with slow closing valves When wired as shown the slow closing valve will operate properly with the following notations 1 The valve will remain open during a unit lockout 2 The valve will draw approximately 25 to 35 VA through the Y signal of the thermostat IMPORTANT Connecting a water solenoid valve can overheat the anticipators of electromechanical thermo stats Only use relay based electronic thermostats OC O Yi AMV O3 TACO VALVE HEATER SWITCH o o THERMOSTAT Fig 32 AMV Valve Wiring N lt Motor N V Fig 33 Taco SBV Valve Wiring OPTIONAL WALL MOUNTED THERMOSTAT The SOPEC water source heat pump units are built with standard in ternal thermostats in either manual changeover MCO or auto matic changeover ACO configuration Refer to Fig 17 20 When desired the unit can be furnished with a 24 v control circuit which is field wired to a Carrier supplied accessory re mote thermostat Most heat pump thermostats can be used with the controller Use a thermostat with Y G O and W outputs Refer to unit wiring diagrams in Fig 21 and 22 and Aquazone Controls Operation and Troubleshooting Instructions for addi tional information Vendor installation instructions and additional installation information is shipped with each thermostat NOTE Low voltage wiring between the unit and the wall ther most
41. temperature would be 22 to 25 F Therefore the freeze pro tection should be at 15 F 30 F 15 F 15 F IMPORTANT All alcohols should be pre mixed and pumped from a reservoir outside of the building or intro duced under water level to prevent alcohols from fuming Calculate the total volume of fluid in the piping system See Table 13 Use the percentage by volume in Table 14 to deter mine the amount of antifreeze to use Antifreeze concentration should be checked from a well mixed sample using a hydrome ter to measure specific gravity FREEZE PROTECTION SELECTION The 30 F FP1 fac tory setting water should be used to avoid freeze damage to the unit Once antifreeze is selected the JW3 jumper FP1 should be clipped on the control to select the low temperature antifreeze 10 F set point to avoid nuisance faults Table 12 Coaxial Water Pressure Drop r ESTE DROP ft wg UNIT IE _____ o CZ 12 LEGEND Cv Flow Coefficient MOPD Maximum Operating Pressure Differential 39 E OY 90 F FLO 50PEC GPM TEEN With Cv 2 9 al voraz With Cv 2 9 Was raza with Cv 2 9 Without wimncv 2 9 e MOPD 125 psi ale MOPD 125 psi Motorized MOPD 125 psi MOPD 125 psi Table 13 Approximate Fluid Volume gal per 100 ft of Pipe PIPE DIAMETER in VOLUME gal Copper 1 4 1 1 25 6 4 1 5 9 2 Rubber Hose 1 3 9 Polyethylene 3 4 IPS SDR11 2 8 1 IPS SDR11 4 5 11 4 IPS SDR11 8 0
42. type or set to minimum ventilation position if Unit damper type DCV Configuration Soy Maximum Vent Position Filter Alarm Timer Pushbutton Override SPT Sensor Set Point Adjustment Usually set at 100 Used to limit maximum 0 100 100 damper opening in DCV mode 0 9999 hrs O hrs Disables Filter Alarm if set to 0 Disable Enable Enable Enables Override Feature on Rnet sensor Enables Set Point adjustment capability Disable Enable Enable on Rnet Sensor Cooling is locked out when OAT is less than x 65 80 F 65 F configured value and OAT is actively being broadcast Heating is locked out when OAT is greater X 35 150 F 150 F than configured value and OAT is actively being broadcast X 0 600 sec 60 sec Delay before equipment starts X Disable Enable Enable Enables unit occupied o o Used to enforce minimum A Used to enable test mode Will automatically X Disable Enable Disable reset to disable after 1 hour Used to test all fan speeds Sequences fan X Disable Enable Disable from low to high and operates each speed for 1 minute Resets to disable on completion Off Low Speed Medium Speed High Speed On Used to test compressor cooling and heating operation Sequences cooling stage 1 then Disable Enable Disable stage 2 then heating stage 2 and reduces capacity to stage 1 Operates for 1 minute per step Resets to disable on completion Used to test dehumification mode X Disable Enable Disable Operates for 2 minut
43. via the BACview Handheld tool i Vu Open or Field Assistant control system The daily schedule consists of a start stop time standard or 24 hour mode and seven days of the week starting with Monday and ending on Sunday To enter a daily schedule navigate to Config then Sched then enter BACview Admin Password 1111 then go to schedule_schedule From here enter either a Weekly or Excep tion schedule for the unit Occupancy Input Contact The WSHP Open controller has the capability to use an external dry contact closure to deter mine the occupancy status of the unit The Occupancy Sched ules will need to be disabled in order to utilize the occupancy contact input NOTE Scheduling can only be controlled from one source BAS Building Automation System On Off A BAS system that supports network scheduling can control the unit through a network communication and the BAS scheduling function once the Occupancy Schedules have been disabled NOTE Scheduling can either be controlled via the unit or the BAS but not both INDOOR FAN The indoor fan will operate in any one of three modes depending on the user configuration selected Fan mode can be selected as Auto Continuous or Always On In Auto mode the fan is in intermittent operation during 41 both occupied and unoccupied periods Continuous fan mode is intermittent during unoccupied periods and continuous dur ing occupied periods Always On mode
44. with Aquazone Complete C Control STANDBY The Y and W terminals are not active in Stand by mode however the O and G terminals may be active de pending on the application The compressor will be off COOLING The Y and O terminals are active in Cooling mode After power up the first call to the compressor will ini tiate a 5 to 80 second random start delay and a 5 minute anti short cycle protection time delay After both delays are com plete the compressor is energized NOTE On all subsequent compressor calls the random start delay is omitted HEATING STAGE 1 Terminal Y is active in Heating Stage 1 After power up the first call to the compressor will initiate a 5 to 80 second random start delay and a 5 minute anti short cycle protection time delay After both delays are complete the compressor is energized NOTE On all subsequent compressor calls the random start delay is omitted HEATING STAGE 2 To enter Stage 2 mode terminal W is active Y is already active Also the G terminal must be active 40 or the W terminal is disregarded The compressor relay will re main on and EH1 emergency heat is immediately turned on EH2 will turn on after 10 minutes of continual Stage 2 demand NOTE EH2 will not turn on or if on will turn off if FP1 freeze protection temperature is greater than 45 F and FP2 is greater than 110 F EMERGENCY HEAT In Emergency Heat EH mode terminal W is active while termi
45. within the limit This feature provides the most quiet and efficient operation by oper ating the fan at the lowest speed possible Fan Speed Control During Cooling Whenever mechani cal cooling is required and active the control continuously monitors the supply air temperature to verify it does not fall be low the configured minimum cooling SAT limit 50 F default As the SAT approaches this value the control will increase the fan speed as required to ensure the SAT will remain within the limit The fan will operate at lowest speed to maximize latent capacity during cooling COOLING The WSHP Open controller will operate one or two stages of compression to maintain the desired cooling set point The compressor outputs are controlled by the PI propor tional integral cooling loop and cooling stages capacity algo rithm They will be used to calculate the desired number of stages needed to satisfy the space by comparing the space tem perature SPT to the appropriate cooling set point The water side economizer if applicable will be used for first stage cool ing in addition to the compressor s The following conditions must be true in order for the cooling algorithm to run Cooling is set to Enable e Heating mode is not active and the compressor time guard has expired Condensate overflow input is normal If occupied the SPT is greater than the occupied cooling set point Space temperature reading is valid
46. 0 F xw x Dirty air filter Check and clean air filter xw x uniinTestmode Reset power or wait 20 minutes for auto exit X X Thermostat position Ensure thermostat set for heating or cooling operation x X Unitlocked out Check for lockout codes Reset power Table 18 Troubleshooting HEATING COOLING POSSIBLE CAUSE Check for line voltage between L1 and L2 on the contactor Check for 24 vac between R and C on controller X Water temperature out of Bring water temperature within design parameters range in cooling X Reduced or no airflow in Check for dirty air filter and clean or replace heating nance Clean air coil High external static Check duct design and downstream interference x x BadHP switch Check switch continuity and operation Replace x x Insufficient charge Check for refrigerant leaks Plugged strainer or filter Clean or replace Check water flow adjust to proper flow rate x J Inadequate antifreeze level Check antifreeze density with hydrometer Improper freeze protect set Clip JW3 jumper for antifreeze 10 F use ting 10 F vs 30 F x Reduced or no airflow in Check for dirty air filter and clean or replace cooling Check fan motor operation and airflow restrictions x Air temperature out of range Too much cold vent air Bring entering air temperature within design parameters Blocked drain Check for blockage and clean drain Improper trap Check trap dimensions and location ahead of vent
47. 1 2 IPS SDR11 10 9 2 IPS SDR11 18 0 11 4 IPS SCH40 8 3 11 2 IPS SCH40 10 9 2 IPS SCH40 17 0 LEGEND IPS Internal Pipe Size SCH Schedule SDR Standard Dimensional Ratio NOTE Volume of heat exchanger is approximately 1 0 gallon Table 14 Antifreeze Percentages by Volume MINIMUM TEMPERATURE FOR FREEZE PROTECTION F ANTIFREEZE Methanol 100 USP Food Grade Propylene Glycol Cooling Tower Boiler Systems These systems typically use a common loop maintained at 60 to 90 F Carrier recommends using a closed circuit evaporative cooling tower with a secondary heat exchanger between the tower and the water loop If an open type cooling tower is used continuously chemical treatment and filtering will be necessary Ground Coupled Closed Loop and Plateframe Heat Exchanger Well Systems These systems al low water temperatures from 30 to 110 F The external loop field is divided up into 2 in polyethylene supply and return lines Each line has valves connected in such a way that upon system start up each line can be isolated for flushing using only the system pumps Air separation should be located in the pip ing system prior to the fluid re entering the loop field OPERATION Power Up Mode The unit will not operate until all the inputs terminals and safety controls are checked for normal operation NOTE The compressor will have a 5 minute anti short cycle delay upon power up Units
48. 45 100 100 Ignore Display Ignore 0 30 min per RH Ignore Display Ignore Display Ignore Display Ignore Display E e 55 NOTES Defines the hysteresis applied above the cooling and below the heating set points before an alarm condition will occur Used to calculate the delay time before an alarm is generated after the alarm condition occurs Defines the fixed unoccupied ow SPT alarm limit Defines the fixed unoccupied high SPT alarm limit Defines the fixed minimum SAT alarm limit Defines the fixed maximum SAT alarm limit Defines the delay time before an alarm is generated after the alarm condition occurs Defines the fixed occupied high space RH alarm limit Used to calculate the delay time before an alarm is generated after the alarm condition occurs Defines the fixed unnoccupied high space RH alarm limit Defines the fixed occupied high space lAQ Ventilation alarm limit Used to calculate the delay time before an alarm is generated after the alarm condition occurs Determines if the SPT alarm is displayed on the local Rnet sensor Determines if the SAT alarm is displayed on the local Rnet sensor Determines if the Compressor Lockout alarm is displayed on the local Rnet sensor Determines if the Condenser Water Temperature alarm is displayed on the local Rnet sensor Determines if the Condensate Overflow alarm is displayed on the local Rnet sensor Determines if the Dirty Filter al
49. 74 254 Note 2 BOTTOM VIEW 0 75 2 12 54 A 19 4 A 1 75 sl 44 3 00 lt 1 00 25 76 kasi 4 50 tes REAR REAR VIEW ACCESS 0 Note 2 11 75 9 90 I 298 251 lt 54 00 1372 NOTES 1 Dimensions are shown in inches Dimensions in parentheses are in millimeters 2 Access is reduced if optional disconnect box is selected 3 Optional autoflow valve motorized water valve and disconnect box are shown Fig 6 50PEC18 Bottom Return Cabinet Dimensions Left Hand Piping 16 0 5 0 DISCHARGE 89 406 127 AIR gt y CONTROL ACCESS DOOR FRONT VIEW SIDE VIEW 21 0 E AAA Z SSS s pr S Lee SSS SSS SSS SS E Cees i SS A gt SA AA AAA A ee H eee 533 SSS A gt A AA AAA s gt E EE gt SA gt gt gt A gt E ES i A AR SSS PR SS See s E EE A RA SSS SSS A RR E ES gt gt AAA AAA a a ee gt E ES 35
50. AQUAZONE 50PEC09 18 Water Source Heat Pump Console Unit with PURON Refrigerant R 410A Installation Start Up and Service Instructions CONTENTS Page SAFETY CONSIDERATIONS 1 2 GENERAL 2 INSTALLATION 2 33 Step 1 Check Jobsite 2 Step 2 Check Unit 17 STORAGE UNIT PROTECTION Step 3 Mount Unit 17 Step 4 Wire Electrical Connections 17 e SUPPLY VOLTAGE EXTERNAL LOOP POWER CONNECTION e 230 V OPERATION Step 5 Wire Low Voltage Connections 30 WATER FREEZE PROTECTION ACCESSORY CONNECTIONS WATER SOLENOID VALVES OPTIONAL WALL MOUNTED THERMOSTAT OPTIONAL PREMIERLINK CONTROLLER WSHP OPEN WIRING Step 6 Install Supply and Return Piping 32 SUPPLY AND RETURN HOSES SUPPLY AND RETURN PIPING Step 7 Install Condensate Piping 33 PRE START UP 33 35 System Cleaning and Flushing 33 System Checkout 34 FIELD SELECTABLE INPUTS 36 37 Complete C Control Jumper Settings 36 Complete C Control DIP Switches 36 Deluxe D Control Jumper Settings 36 Deluxe D Control DIP Switches 36 Deluxe D Control Accessory Relay Configurations 37 START UP
51. CAL ACTION PAIL FUNNEL 3 TOF CONDENSER Fig 37 Gravity Flow Method FORCED CIRCULATION METHOD Fully open vent pipe when filling condenser The vent may be closed when condenser is full and pump is operating See Fig 38 Regulate flow to condenser with a supply line valve If pump is a nonoverloading type the valve may be fully closed while pump is running For average scale deposit allow solution to remain in con denser overnight For heavy scale deposit allow 24 hours Drain condenser and flush with clean water Follow acid manu facturer s instructions 46 GAS VENT GLOBE VALVES PRIMING CONN le SUPPLY lt PUMP SUPPORT lt 1 PIPE A Ze CONDENSER Z TANK REMOVE WATER REGULATING VALVE FINE MESH SCREEN Fig 38 Forced Circulation Method Condensate Pans Check condensate drain pans for algae growth every three months If algae growth is apparent consult a water treatment specialist for proper chemical treat ment The application of an algaecide every three months will typically eliminate algae problems in most locations Check condensate hose for leaks and blockage and correct any problems Blower Motors All units have lubricated fan motors BLOWER MOTORS SHOULD NEVER BE LUBRICATED UNLESS OBVIOUS DRY OPERATION IS SUSPECTED Periodic maintenance oiling is not recommended because it will result in dirt accumulating on excess oil and cau
52. CULATINGT OPEN LOOP AND RECIRCULATING WELL Scaling Potential Primary Measurement Above the given limits scaling is likely to occur Scaling indexes should be calculated using the limits below pH Calcium Hardness Method All N A Index Limits for Probable Scaling Situations Operation outside these limits is not recommended Scaling indexes should be calculated at 150 F for direct use and HWG applications and at 90 F for indirect HX use A monitoring plan should be implemented pH lt 7 5 and Ca Hardness lt 100 ppm Ryznar Stability Index 6 0 7 5 If gt 7 5 minimize steel pipe use Langelier Saturation Index 0 5 to 0 5 If lt 0 5 minimize steel pipe use Based upon 150 F HWG and direct well 85 F indirect well HX Iron Fouling Iron Fe2 Ferrous Bacterial Iron Potential lt 0 2 ppm Ferrous If Fe2 ferrous gt 0 2 ppm with pH 6 8 O2 lt 5 ppm check for iron bacteria lt 0 5 ppm of Oxygen Above this level deposition will occur Iron Fouling Corrosion Preventiontt pH A 6 8 5 6 8 5 Monitor treat as needed Minimize steel pipe below 7 and no open tanks with pH lt 8 Hydrogen Sulfide H2S lt 0 5 ppm A N A At H2S gt 0 2 ppm avoid use of copper and cupronickel piping of HXs Rotten egg smell appears at 0 5 ppm level Copper alloy bronze or brass cast components are okay to lt 0 5 ppm Ammonia lon as Hydroxide lt 0 5 ppm Chloride Nitrate and Sulfate A N A Compounds Maximum Chloride Le
53. H uoneinBijuo2 pueH W I xog Jo woog 67 siajua Ajddns samod a PSII gt lt ie suonen yuo Iy xog luo 1 6D yp uuo s q euondo Z 1 SLO gt k u 19 JOMO q SEO 1 1l d SAIEN ASIEM jaued p zlio1olN ss oov euondo zt Jossaidwog 99 91 o xog Jo woog 4991 J19MO g sjajua Ajddns 1amogy sisseyo ou SABA y yeulqed o p lunouu MOO mg xog 159 9uuooSsid jeuondo pasny euondo Y 611 ZU jddns 19mod a Sum P4eH 16 Step 2 Check Unit Upon receipt of shipment at the jobsite carefully check the shipment against the bill of lad ing Make sure all units have been received Inspect the carton or crating of each unit and inspect each unit for damage En sure the shipping company makes proper notation of any short ages or damage on all copies of the freight bill Concealed damage not discovered during unloading must be reported to the shipping company within 15 days of receipt of shipment NOTE It is the responsibility of the purchaser to file all neces sary claims with the shipping company STORAGE A CAUTION DO NOT store or install console units in corrosive environ ments or in locations subject to temperature or humidity extremes e g attics garages rooftops etc Corrosive conditions and high temperature or humidity can signifi cantly reduce performance reliability and service life Always move units in an upright position Tilti
54. I 590 llo SS me HOSNIS ndino seur Ger I 9 00 z due MA 1 dq isthe S og I 00 enea Busiendy NYO l la 18 2 00 eH wm ANId md Dopuv ov l paedg mo7 10 uo we 1 0 UB V NH9 Idul Bojeuy IV Bugs coyote ee ee Soe UMS MOHO LL aN3931 po ana esoo Lam BNE ee s aay 29 Table 2 Electrical Data 50PEC Units 50PEC UNIT SIZE MAX VOLTAGE V PH Hz MIN MAX COMPRESSOR _ FAN MOTOR TOTAL UNIT MIN CIRCUIT CODE VOLTAGE FLA FLA AMPS FUSE HACR 1 115460 104126 1 81 ss 06 86 107 15 o9 3 20e a30 1 60 197 254 1 45 230 04 49 60 1 15 25 12 3 208 230 1 60 197 254 1 52 240 oe 58 71 J 55 15 a5 3 208 230 1 60 197 254 1 61 300 os 69 84 15 4 265160 239292 1 47 285 06 53 65 15 a 3 _ 208 230 1 60 197 254 1 68 sso o 75 92 15 4 265160 239292 1 62 22o ose 68 84 15 LEGEND FLA Full Load Amps HACR Heating Air Conditioning and Refrigeration LRA Locked Rotor Amps RLA Rated Load Amps Step 5 Wire Low Voltage Connections WATER FREEZE PROTECTION The Aquazone con trol allows the field selection of source fluid freeze protection points through jumpers The factory setting of jumper JW3 FP1 is set for water at 30 F In earth loop applications jumper JW3 should be clipped to c
55. Iert BRN L1 plain BN pele SEE NOTE 7 YEL BLU SEE NOTE 7 r OPTIONAL TRANSFORMER PRIMARY LEAD COLORS sic TAN ENABLE VOLTAGE LEAD COLOR Latar Y Ae pu ee i RH rep a Be RED HSS i fur a ang ota IU ap reo en oG losos SEA SPLICE WIRE FoR DELUXE D MATER MES LEE SI R Microprocessor ap Losi Control Logic RED O O _ LO vio RED 29 BLU PA say 22 roc AL2 Be STATUS EI GRY FPI BE d i TEST 169 GRY SEE a NOTE 4 FAULT Fro UNOCCUPIEI e Sa vio R BRN o o ore Rvs SS as Not Used YEL co JW3 zB S FPi Low NOTE4 ORG B A YEL TA YEL YE a o 1 IN Bo li CC I 2 Kia Wo d RELAY I P COM E OFF ON NO2 o C UPS Disable Enable EM I acct Es gt JAcc2 Co 3 Unit Stage 2 1 ER 2 Functions NC2 3 T stat Heat Cool Heat Pump CE 3 i BL COM RELAY 1 CE 4 RV on B RV on O Com 4 acc2 K C 5 Dehumid Normal CR Functions R C 6 DDC Output DDC Normal CE 6l E 7 Boilerless Enable Disable HE 7 H hi fan dehumid C d Boilerless 40 F 50 F CE 8 FP1 FP2 Faults 3 1 F EC Ground PACKAGE DEA Cap ATM11C02 amp ATA11C03 Transformer Ala
56. Optional autoflow valve motorized water valve and disconnect box are shown Fig 10 50PEC18 Front Return Cabinet Dimensions Left Hand Piping 12 of uinjay tuollog suosu wq sisseu SL 6093d0S LL Du 61 SLO A azs DEE I8ueq ss 55v 19MO G 9ued Soch UMOUS 38 XO JOQUUOISIP PUE JALA 1 JEM DazuOOU OALA MOUOUE euondo Z Site u ese s s ulu ued u suolisu uuidq s uoul ul eje UMOUS SUOISUBWIG SALON UOISUSWIP o Ul 6 ppe oo j ay anoqe pastes paesu si pun J 10 papajas s eseqqns jeuoNdo Jl uoneinbyuo0y puey 437 xog JO woog siajua Ajddns Jamoy sisseyo jou 9uIqe9 o pejunow xog 199UU09SIG pasny Iguondo 61 ero Ker D AJ ort Jossaidwog SAIEN 19M p zliololN jeuondo SAIEN moyoyny 101 jeuondo xog JO woog Sau jddns Joo suoneinBijuoSo Ily xog luo 19 uuoosiq Ieuondo xog jo woog Sieg Ajddns 1 M0d sisseyo jou youlqeo 0 payunow xog 159 uuooSsiq p snd euondo 86 07 SDAICA JEM P3ZI1010 N jeuondo SAIEN NO JO nV Iguondo I8ueq SO 19MO g jaued sse00y Joss iduioo 0701 86 07 13 uinjay U014 SUOISUAUWIG SISSBYD SL Z9L 00 0 61 gt cro u 195 Jaemo g 131 8 L joued ss oov Jos
57. S LED TEST LED enem FAULT LED Red On Joff O Flash Last Fault Code in Memory Open On Joff O Flashing Code 8 Cycle closed 5 sec open 25 sec Open Ion O Flash Last Fault Code in Memory Cycling Appropriate Code Flashing Code 2 Flash Last Fault Code in Memory Flashing Code 3 O Flash Last Fault Code in Memory Flashing Code 4 O Flash Last Fault Code in Memory ALARM RELAY No Fault in Memory On Jo FlashingCode1 Open HP Fault Open LP Fault Open FP1 Fault Open FP2 Fault Open CO Fault Open Over Under Voltage Open closed after 15 minutes HP Lockout Flashing Code 2 Closed LP Lockout Flashing Code 3 Closed FP1 Lockout Closed FP2 Lockout Flashing Code 5 Closed CO Lockout Closed eae les i fault i he Fault LED will flash cod oO ps ED Ss 2 Codos willbe displayed wilh a 10 second Fault LED pause FP Freeze Protection PM Performance Monitor 3 Slow flash is 1 flash every 2 seconds HP High Pressure 4 Fast flash is 2 flashes every 1 second 5 EXAMPLE Flashing Code 2 is represented by 2 fast flashes followed by a 10 second pause This sequence will repeat continually until the fault is cleared SERVICE exchanger should be kept full of water at all times Open loop Perform the procedures outlined below periodically as indicated AP WARNING To prevent injury or death due to electrical shock or contact with moving parts open unit disconnect switch before ser vicing
58. TI FREEZE solutions Switch High Pressure cut JW3 jumper 5 Refer to Microprocessor Control Installation Ke Switch Low Pressure Application and Operation manual for control wiring to the unit Low voltage wiring must be I Ground class 1 and voltage rated equal to or greater than unit supply voltage q Wire Nut 6 Factory cut jumper JW4 Dry contact will be available between AL1 and AL2 Y Mate N Lock 7 Transformer secondary ground via Deluxe D board standoffs and screws to control box Ground available from top 2 standoffs as shown Fig 20 50PEC Unit Manual or Auto Changeover and Deluxe D Controller 21 GROUND 1 NEUTRAL ON 265V COMPRESSOR POWER SUPPLY REFER TO DATA PLATE SYSTEMS USE COPPER CONDUCTORS ONLY SEE NOTE 2 REFER TO DISCONNECT ET dE BOX FOR OPTIONAL POWER SUPPLY CONNECTION Len L2 ribbed ce p on CONNECTION L1 plain NOTE D 3 CB TRANS 24V TRANSFORMER PRIMARY LEAD COLORS SEE VOLTAGE LEAD COLOR NOTE 7 ds 115 WHT BLK TRANS 208 RED 230 ORG RED o CB 220V ES 265 BRN ORG 240V TYPICAL HEAT PUMP T sTaT BRN SEE NO RED CLASS 1 of gt CLASS 1 WIRING RED Le WIRING ACCEPTABLE REQUIRED INSIDE OUTSIDE CONTROL BOX BLU Ka Karin D COMPRESSOR BRN 3 DIP SWITCH GE eae GRY o
59. Temperature Sensor SAT Supply Air Temperature Sensor SPT Space Temperature Sensor NOTE Reversing valve is on in Cooling mode Fig 23 PremierLink Controller Applications with Complete C Control PREMIER LINK PWR e DELUXE u T T T T E D CONTROL EE EE 1 ES SS I HS1 l S L T e l I LEGEND A E LWT Leaving Water Temperature Sensor ME e Sal SAT Supply Air Temperature Sensor SPT Space Temperature Sensor EE NOTE Reversing valve is on in Cooling mode CMP1 u _ _ _ ala FAN e _ _ _ _ _ i ee I e Ta N A a I is A T Fig 24 PremierLink Controller Applications with Deluxe D Control 24 O1JUOD 0901014 ldiiniN U dO dHSM PUE Y l lduuo yym syun sz Du 3ATVA HALVM LOH d NddNS 1314 OL LOANNOO ANY AN WNIWYAL INOtid SHIM LOANNOOSIG SIIOO 1V3H3ati YSALVM LOH SOd 3 GATIVLSNI 013134 HOS V TYLA a Bale ts SR al aioway gt 13A qaq HOLIMS 1VO14 ON day vog 9 3131dNOO TAA LHM cl L ILON emgeet soeds ny adw a 1Y iddns AIPIWNH out joejuo indu Aouedns09 Jedweq diy apisino p solO Ajjewon my dw Jayjem Bulnes MO HIBAO leSu puoo Aejay JamoJg JOJO J3MO Q aNn3931 qaq GATIVLSNI 07314 ANY aaNddNS 01314 3ATVA 1V3H38 33ZINONO93 ONILWINGOW l l l l l
60. a trained service technician A WARNING When replacing the compressor contactor or lockout relay in a unit with electromechanical controls use only Carrier factory authorized parts Substitution of other components may result in an inoperative safety circuit and may cause a hazardous condition Checking System Charge Units are shipped with full operating charge If recharging is necessary 1 Insert thermometer bulb in insulating rubber sleeve on liquid line near filter drier Use a digital thermometer for all temperature measurements DO NOT use a mercury or dial type thermometer 2 Connect pressure gage to discharge line near compressor 3 After unit conditions have stabilized read head pressure on discharge line gage NOTE Operate unit a minimum of 15 minutes before checking charge From standard field supplied Pressure Temperature chart for R 410A find equivalent saturated condensing temperature 4 Read liquid line temperature on thermometer then subtract from bubble point temperature The difference equals subcooling temperature Refrigerant Charging AP WARNING To prevent personal injury wear safety glasses and gloves when handling refrigerant Do not overcharge system this can cause compressor flooding NOTE Do not vent or depressurize unit refrigerant to atmo sphere Remove and recover refrigerant following accepted practices Air Coil Fan Motor Removal A CAUTION Before attemptin
61. an occupied or unoccupied mode Displays if an OAT value is being received from the Network See TPI Mapping Changes password See TPI See TPI Changes clock time setting Used to display the active and inactive occupancy control inputs Used to define which occupancy inputs are used to determine occupancy mode APPENDIX A WSHP OPEN SCREEN CONFIGURATION cont SC Se SE EE x X 0 10 F Takes into effect bias maximum allowable set point deviation Takes into effect bias maximum allowable set point deviation Uses historical data to calculate ramp up time so as to be at set point at occupied unoccupied time Defines the control set point used during occupied periods Viewable 65 only if Humidity Sensor Installed Determines when to start Dehumidification when occupied Defines the control set point used during unoccupied periods 90 Viewable only if Humidity Sensor Installed Determines when to start Dehumidification when unoccupied Defines the control set point used to start increasing ventilation during occupied periods Viewable only if Ventilation DMP Type DCV Defines the control set point used to define where the ventilation will reach its maximum limit during 1050 ppm occupied periods Viewable only if Ventilation DMP Type DCV Used to determine DCV ending control point Defines the start time for an Occupied Heating Occupied Cooling Unoccupied Heating Unoccupied Cooling Effect
62. arm is displayed on the local Rnet sensor Determines if the High Space RH alarm is displayed on the local Rnet sensor See TPI See TPI See TPI Copyright 2009 Carrier Corporation Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500052 01 Printed in U S A Form 50PEC 2SI Pg 58 7 09 Replaces 50PEC 1SI 50PEC UNIT START UP CHECKLIST CUSTOMER JOB NAME MODEL NO SERIAL NO DATE PRE START UP DOES THE UNIT VOLTAGE CORRESPOND WITH THE SUPPLY VOLTAGE AVAILABLE Y N HAVE THE POWER AND CONTROL WIRING CONNECTIONS BEEN MADE AND TERMINALS TIGHT Y N HAVE WATER CONNECTIONS BEEN MADE AND IS FLUID AVAILABLE AT HEAT EXCHANGER YN _ HAS PUMP BEEN TURNED ON AND ARE ISOLATION VALVES OPEN Y N HAS CONDENSATE CONNECTION BEEN MADE AND IS A TRAP INSTALLED Y N IS AN AIR FILTER INSTALLED Y N START UP IS FAN OPERATING WHEN COMPRESSOR OPERATES Y N UNIT VOLTAGE COOLING OPERATION PHASE AB VOLTS PHASE AB AMPS CONTROL VOLTAGE IS CONTROL VOLTAGE ABOVE 21 6 VOLTS Y N IF NOT CHECK FOR PROPER TRANSFORMER CONNECTION TEMPERATURES FILL IN THE ANALYSIS CHART ATTACHED COAXIAL HEAT COOLING CYCLE EXCHANGER WATER IN HEATING CYCLE WATER IN AIR COIL COOLING CYCLE AIR IN HEATING CYCLE AIR IN WATEROUT _ F _ fiw__ gm WATER OUT F _ fwg gm AIR OUT F AIR OUT
63. arted again after a normal time guard period of 5 minutes and if the sup ply air temperature has increased above the minimum supply air temperature limit The WSHP Open controller provides a status input to moni tor the compressor operation The status is monitored to deter mine if the compressor status matches the commanded state This input is used to determine if a refrigerant safety switch or other safety device has tripped and caused the compressor to stop operating normally If this should occur an alarm will be generated to indicate the faulted compressor condition HEATING The WSHP Open controller will operate one or two stages of compression to maintain the desired heating set point The compressor outputs are controlled by the heating PI proportional integral loop and heating stages capacity algo rithm They will be used to calculate the desired number of stages needed to satisfy the space by comparing the space tem perature SPT to the appropriate heating set point The follow ing conditions must be true in order for the heating algorithm to run e Heating is set to Enable e Cooling mode is not active and the compressor time guard has expired Condensate overflow input is normal e If occupied the SPT is less than the occupied heating set point Space temperature reading is valid If unoccupied the SPT is less than the unoccupied heat Ing set point e OAT if available is less than the heating lo
64. at must comply with all applicable electrical codes Oe NEC and local codes and be completed before the unit is installed Table 3 lists recommended wire sizes and lengths to install the thermostat The total resistance of low voltage wiring must not exceed 1 ohm Any resistance in excess of 1 ohm may cause the control to malfunction because of high voltage drop Table 3 Recommended Thermostat Wire Sizes WIRE SIZE MAX WIRE LENGTH 18 Gage 75 ft 16 Gage 125 ft 14 Gage 200 ft Length Physical distance from thermostat to unit OPTIONAL PREMIERLINK CONTROLLER This di rect digital controller DDC allows the water source heat pump to be incorporated into a Carrier Comfort Network CCN system installation PremierLink control is factory installed with the Complete C controller or field installed with the Deluxe D control option Refer to Fig 23 and 24 WSHP OPEN WIRING The WSHP Open controller will be factory wired to the Complete C or Deluxe D control board however the system wiring will need to be completed utilizing WSHP Open controller wiring diagrams and the Third Party Integration TPI Guide Factory installation includes harness LWT leaving water temperature supply air and condensate sensor AP WARNING Disconnect all power to the unit before performing mainte nance or service Unit may automatically start if power is not disconnected Failure to follow this warning could cause personal injury
65. ation The status is monitored to deter mine if the compressor status matches the commanded state This input is used to determine if a refrigerant safety switch or other safety device has tripped and caused the compressor to stop operating normally If this should occur an alarm will be generated to indicate the faulted compressor condition Also if auxiliary heat is available see below the auxiliary heat will operate to replace the reverse cycle heating and maintain the space temperature as required AUXILIARY HEAT The WSHP Open controller can con trol a two position modulating water or steam valve connect ed to a coil on the discharge side of the unit and supplied by a boiler or a single stage ducted electric heater in order to main tain the desired heating set point Should the compressor capac ity be insufficient or a compressor failure occurs the auxiliary heat will be used Unless the compressor fails the auxiliary heat will only operate to supplement the heat provided by the compressor if the space temperature falls more than one degree below the desired heating set point the amount is config urable The heat will be controlled so the SAT will not exceed the maximum heating SAT limit Auxiliary Modulating Hot Water Steam Heating Reheat The control can modulate a hot water or steam valve con nected to a coil on the discharge side of the unit and supplied by a boiler in order to maintain the desired heating set point
66. blems even when both values are within ranges shown The term Heat exchanger materials considered are copper cupronickel 304 SS pH refers to the acidity basicity or neutrality of the water supply stainless steel 316 SS titanium Below 7 0 the water is considered to be acidic Above 7 0 water is tClosed recirculating system is identified by a closed pressurized piping considered to be basic Neutral water contains a pH of 7 0 system To convert ppm to grains per gallon divide by 17 Hardness in mg l is Recirculating open wells should observe the open recirculating design equivalent to ppm considerations 35 FIELD SELECTABLE INPUTS Jumpers and DIP dual in line package switches on the control board are used to customize unit operation and can be configured in the field IMPORTANT Jumpers and DIP switches should only be clipped when power to control board has been turned off Complete C Control Jumper Settings See Fig 17 18 and 21 WATER COIL FREEZE PROTECTION FP1 LIMIT SETTING Select jumper 3 JW3 FP1 Low Temp to choose FP1 temperature limit of 10 F or 30 F To select 30 F as the temperature limit DO NOT clip the jumper To select 10 F as the limit clip the jumper ALARM RELAY SETTING Select jumper 1 JW1 for connecting alarm relay terminal AL2 to 24 vac R or to re main as a dry contact no connection To connect AL2 to R do not clip the jumper To set as dry contact clip the jumper
67. ch must be made by the installing or electrical contractor Operating voltage must be within voltage range shown in Table 2 Make all final electrical connections with a length of flexi ble conduit to minimize vibration and sound transmission to the building SUPPLY VOLTAGE Operating voltage to unit must be within voltage range indicated on unit nameplate EXTERNAL LOOP POWER CONNECTION If the unit will be connected to an external loop pump or flow controller connect the pump to the loop pump terminal block PB1 The maximum power handling is 4 amps at 240 v The pumps will automatically cycle as required by the unit 230 V OPERATION All 208 230 v units are factory wired for 208 v The transformer wiring may be switched for 230 v operation as illustrated on the wiring diagrams by switching the RED and ORG leads at L1 SHIPPING BOLTS Fig 15 Remove 4 Shipping Bolts on Compressor Isolator Plate A WARNING Disconnect electrical power source to prevent injury or death from electri cal shock A CAUTION Use copper conductors only to prevent equipment damage NOTE All customer supplied wiring to be copper only and must conform to national and local electrical codes Wiring shown with dashed lines must be field supplied and field installed B wiring only required with systems using remote mounted thermostats Fig 16 Typical Field Installed Wiring Power Supply Refer to Data
68. ckout temperature If all the above conditions are met the heating outputs will be energized as required otherwise they will be deenergized If the heating is active and should the SAT approach the maxi mum SAT limit the fan will be indexed to the next higher speed Should this be insufficient and the SAT rises further reaching the maximum heating SAT limit the fan will be indexed to the maximum speed If the SAT still continues to rise 5 F above the maximum limit all heating stages will be disabled During Heating mode the reversing valve output will be held in the heating position either B or O type as configured even after the compressor is stopped The valve will not switch position until the Cooling mode is required The configuration screens contain the maximum SAT parameter as well as heating lockout based on outdoor air temperature OAT both can be adjusted to meet various specifications There is a 5 minute off time for the compressor as well as a 5 minute time delay when staging up to allow the SAT to achieve a stable temperature before energizing a second stage of capacity Likewise a 45 second delay is used when staging down 42 After a compressor is staged off it may be restarted again after a normal time guard period of 5 minutes and if the sup ply air temperature has fallen below the maximum supply air temperature limit The WSHP Open controller provides a status input to moni tor the compressor oper
69. dual compressor application all compressor relays and related func tions will track with their associated DIP switch 2 on S1 COOLING STAGE 2 In Cooling Stage 2 mode the fan enable compressor and RV relays remain on The fan speed re lay is turned on immediately and turned off once the Cooling Stage 2 demand is removed The control reverts to Cooling Stage 1 mode If there is a master slave or dual compressor application all compressor relays and related functions will track with their associated DIP switch 2 on SI NIGHT LOW LIMIT NLL STAGED HEATING In NLL staged Heating mode the override OVR input becomes active and is recognized as a call for heating and the control will immediately go into a Heating Stage 1 mode With an additional 30 minutes of NLL demand the control will go into Heating Stage 2 mode With another additional 30 minutes of NLL demand the control will go into Heating Stage 3 mode Units with WSHP Open Multiple Protocol The WSHP Open multi protocol controller will control me chanical cooling heating and waterside economizer outputs based on its own space temperature input and set points An optional CO2 IAQ indoor air quality sensor mounted in the space can maximize the occupant comfort The WSHP Open controller has its own hardware clock that is automatically set when the heat pump software is downloaded to the board Oc cupancy types are described in the scheduling section below The followin
70. e 8 Cycling Code 8 Flashing Code 9 Cycling Code 9 ie N flash is 1 flash 2 d aq Geen DEE Reech 2 Fast flash is 2 flashes every 1 second HP High Pressure PM Performance Monitor 3 EXAMPLE Flashing Code 2 is represented by 2 fast flashes followed by a 10 second pause This sequence will repeat continually until the fault is cleared Table 16 Complete C Control LED Code and Fault Descriptions LED CODE DESCRIPTION 1 There has been no fault since the last power off to power on sequence 2 HP open instantly 3 LP open for 30 continuous seconds before or during a call bypassed for first 60 seconds 4 FP1 below temp limit for 30 continuous seconds bypassed for first 60 seconds of operation 5 FP2 below temp limit for 30 continuous seconds bypassed for first 60 seconds of operation 6 Sensor overflow grounded for 30 continuous seconds 7 Autoreset R power supply is lt 19 vac or gt 30 vac 8 Performance monitor Warning has occurred 9 FP1 temperature is higher than FP2 in heating test mode or FP2 temperature is higher than FP1 in cooling test mode LEGEND FP Freeze Protection LP Low Pressure HP High Pressure PM Performance Monitor LED Light Emitting Diode 44 Table 17 Aquazone Deluxe D Control Current LED Status and Alarm Relay Operations DESCRIPTION Normal Mode Normal Mode with PM D Control is non functional Test Mode Night Setback ESD Invalid T stat Inputs STATU
71. e or High Fan Mode Switch 7 provides selection of auto dehumidification fan mode or high fan mode In auto dehumidification fan mode the fan speed relay will remain off during Cooling Stage 2 if terminal H is active In high fan mode the fan enable and fan speed relays will turn on when terminal H is active Set the switch to ON for auto dehumidification fan mode or to OFF for high fan mode Switch 8 Not used Deluxe D Control Accessory Relay Configura tions The following accessory relay settings are applica ble for Deluxe D control only CYCLE WITH COMPRESSOR In this configuration the relay will be ON any time the compressor relay is on DIGITAL NIGHT SETBACK NSB In this configura tion the relay will be ON if the NSB input is connected to ground C NOTE If there are no relays configured for digital NSB then the NSB and OVR override inputs are automatically config ured for mechanical operation MECHANICAL NIGHT SETBACK When NSB input is connected to ground C all thermostat inputs are ignored A thermostat setback heating call will then be connected to the OVR input If OVR input becomes active then the Deluxe D control will enter night low limit NLL staged heating mode The NLL staged heating mode will then provide heating during the NSB period WATER VALVE SLOW OPENING If relay is config ured for water valve slow opening the relay will start 60 sec onds prior to starting compressor
72. ected 3 Optional autoflow valve motorized water valve and disconnect box are shown 3 5 Discharge Air 89 xs E E 30 SIDE VIEW 21 0 533 Air Inlet yy 12 0 305 1 25 CT 25 A A 21 0 533 20 0 508 YY Fig 9 50PEC09 15 Front Return Cabinet Dimensions Left Hand Piping 11 12 60 1 50 DISCHARGE 38 1 AR gt al III 201 INLET QUILL III IO NI WU DOMO 0 III ma DOUD lima MULUURNDBUULL UN O ima DOUD ima UULUURUUUULULU UN MUUUUUUUUUH 48 00 1219 54 00 1372 i CONTROL ACCESS DOOR i FRONT VIEW SIDE i VIEW 21 00 7 90 AIR Y Filter located behind return air grille and requires removal of cabinet front for access 50 54 00 13 1372 L H PIPE AND ELECTRIC AREA BOTTOM VIEW Note 2 1 00 25 1 00 25 20 00 508 lt 54 00 1372 r _ I REAR REAR VIEW ACCESS Note 2 NOTES 1 Dimensions are shown in inches Dimensions in parentheses are in millimeters 2 Access is reduced if optional disconnect box is selected 3
73. ermines Type of ventilation damper control to be used Used to determine ventilation damper output signal range closed open Set to Installed if Humidity sensor is present Set to Installed if factory installed dehumidification reheat coil is present Used to determine external occu CLOSED pancy switch contact occupied state 10 sec Alarm CLOSED 6 9 6 9 0 F 0 F 0 F 5 F 4ma 20 ma 0 ppm 2000 ppm Alarm State Minimum Condenser Water Temperature in 25 60 F Heating Maximum Condenser Water Temperature in Heating Minimum Condenser Water Temperature in 30 60 F Cooling Maximum Condenser Water Temperature in 85 120 F Cooling IAQ sensor IAQ sensor IAQ sensor IAQ sensor LEGEND BAS Building Automation System DCV Demand Controlled Ventilation IAQ Indoor Air Quality OAT Outdoor Air Temperature RH Relative Humidity SAT Supply Air Temperature SPT Space Temperature TPI Third Party Integration 54 Delay before equipment alarms on high condensate level Determine Alarm state of condensate switch input Determines the minimum acceptable water loop temperature to start heating Determines the maximum acceptable water loop temperature to start heating Determines the minimum acceptable water loop temperature to start cooling Determines the maximum acceptable water loop temperature to start cooling Minimum output current mA for IAQ senso
74. es Resets to disable on completion Inactive Heating Cooling Dehumidify TimeGard Wait Lockout Cooling if lt Lockout Heating if gt Power Fail Restart elay Occupancy Schedules Set Point Separation Test Mode Fan Test Fan Speed Displays current fan operation Compressor Test Configuration Service Testing Compressor Dehumidification Test Admin Password level access only Displays compressor test mode L Used to test auxiliary heat Sequences fan on and enables Test Aux Heating Test Disable Enable Disable heating coil for 1 minute Resets to disable on completion Used to test entering return air water loop economizer coil operation Sequences fan on and opens economizer coil water valve for 1 minute Resets to disable on completion Used to preposition OA damper x Disable Enable Disable actuator to set proper preload Disable Enable Disable H20 Economizer Test Preposition OA o Ed Damper Barner 4005 x Disable Enable Disable Used to test OA damper operation SAT LCWT Displays SAT Displays Leaving Condenser Water Temperature LEGEND BAS Building Automation System DCV Demand Controlled Ventilation IAQ Indoor Air Quality OAT Outdoor Air Temperature RH Relative Humidity SAT Supply Air Temperature SPT Space Temperature TPI Third Party Integration 53 Configuration Service Configuration APPENDIX
75. f the cable will be greater than 100 ft a shield 22 AWG cable should be used The cable should have a maximum length of 500 ft To wire the SAT sensor to the controller 1 Wire the sensor to the controller See Fig 25 29 2 Verify that the Enable SAT jumper is on 3 Verify that the Enable SAT and Remote jumper is in the left position Wiring an Indoor Air Quality IAQ Sensor An IAQ sensor monitors CO levels The WSHP Open controller uses this information to adjust the outside air dampers to provide proper ventilation An IAQ sensor can be wall mounted or mounted in a return air duct Duct installation requires an aspi rator box assembly The sensor has a range of 0 to 2000 ppm and a linear 4 to 20 mA output This is converted to 1 to 5 vdc by a 250 ohm 1 4 watt 2 tolerance resistor connected across the zone con troller s IAQ input terminals NOTE Do not use a relative humidity sensor and CO2 sensor on the same zone controller if both sensors are powered off the board If sensors are externally powered both sensors may be used on the same zone controller The 32 If the cable used to wire the IAQ sensor to the controller will be less than 100 ft an unshielded 22 AWG American Wire Gage cable should be used If the cable will be greater than 100 ft a shield 22 AWG cable should be used The cable should have a maximum length of 500 ft To wire the IAQ sensor to the controller 1 Wire the sensor to the co
76. ff the outputs and try to again satisfy the thermostat used to terminal Y Once the thermostat in put calls are satisfied the control will continue normal operation NOTE If 3 consecutive faults occur without satisfying the thermostat input call to terminal Y the control will go into lockout mode The last fault causing the lockout is stored in memory and can be viewed by entering Test mode Aquazone Deluxe D Control LED Indica tors There are 3 LED indicators on the Deluxe D control STATUS LED Status LED indicates the current status or mode of the Deluxe D control The Status LED light is green TEST LED Test LED will be activated any time the De luxe D control is in Test mode The Test LED light is yellow FAULT LED Fault LED light is red The fault LED will always flash a code representing the last fault in memory If there is no fault in memory the fault LED will flash code 1 and appear as 1 fast flash alternating with a 10 second pause See Table 17 Table 15 Complete C Control Current LED Status and Alarm Relay Operations LED STATUS ALARM RELAY Ox Open Cycle Closed 5 sec Open 25 sec Off Open Dee Open Open Closed after 15 minutes Fast Flash Lockout Closed Flashing Code 1 Cycling Code 1 Flashing Code 2 Cycling Code 2 Flashing Code 3 Cycling Code 3 Flashing Code 4 Cycling Code 4 Flashing Code 5 Cycling Code 5 Flashing Code 6 Cycling Code 6 Flashing Code 7 Cycling Code 7 Flashing Cod
77. g sections describe the functionality of the WSHP Open multi protocol controller All point objects referred to in this sequence of operation will be referenced to the objects as viewed in the BACviewf handheld user interface SCHEDULING Scheduling is used to start stop the unit based on a time period to control the space temperature to spec ified occupied heating and cooling set points The controller is defaulted to control by occupied set points all the time until ei ther a time schedule is configured with BACview Field Assis tant i Vu Open or a third party control system to enable dis able the BAS Building Automation System on off point The local time and date must be set for these functions to operate properly The occupancy source can be changed to one of the following Occupancy Schedules The controller will be occupied 24 7 until a time schedule has been configured using either Field Assistant i Vu Open BACview or a third party control system to enable disable the BAS on off point The BAS point can be disabled by going to Config then Unit then Occupancy Sched ules and changing the point from enable to disable then click ing OK NOTE This point must be enabled in order for the i Vu Open Field Assistant or BACviewf control system to assign a time schedule to the controller Schedule schedule The unit will operate according to the schedule configured and stored in the unit The schedule is accessible
78. g to remove fan motors or motor mounts place a piece of plywood over evaporator coils to prevent coil damage Motor power wires need to be disconnected from motor terminals before motor is removed from unit 1 Shut off unit main power supply 2 Loosen bolts on mounting bracket so that fan belt can be removed 3 Loosen and remove the 2 motor mounting bracket bolts on left side of bracket 4 Slide motor bracket assembly to extreme right and lift out through space between fan scroll and side frame Rest motor on a high platform such as a step ladder Do not allow motor to hang by its power wires 47 Replacing the WSHP Open Controller s Bat tery The WSHP Open controller s 10 year lithium CR2032 battery provides a minimum of 10 000 hours of data retention during power outages NOTE Power must be ON to the WSHP Open controller when replacing the battery or the date time and trend data will be lost 1 Remove the battery from the controller making note of the battery s polarity 2 Insert the new battery matching the battery s polarity with the polarity indicated on the WSHP Open controller TROUBLESHOOTING When troubleshooting problems with a WSHP consider the following and refer to Table 18 Thermistor A thermistor may be required for single phase units where starting the unit is a problem due to low voltage WSHP Open Controller With the WSHP Open con troller option the 100 most recent alarms ca
79. h 51 4 X Se 51 4 x Se 51 4 x a 51 4 x 61 4 FILTER SIZE in Bottom Return Qty FILTER SIZE in Front Return Qty UNIT WEIGHT Ib REF TO AIR HEAT EXCHANGER Face Area sq ft No of Rows Deep Copper Tube Size OD in Fin Spacing FPI REFRIG CHARGE R 410A CKT 0z No of Circuits UNIT CABINET WITH BOTTOM RETURN WITH STANDARD 48 x 26 x 12 48 x 26 x 12 54 x 26 x 12 5 in SUBBASE Width x Height x Depth in 48 x 26 x 12 ERES RE 54x 21 x 12 UNIT CABINET WITH FRONT RETURN NO SUBBASE Width x Height x Depth in WATER IN OUT SIZE OD SWEAT in CONDENSATE SIZE ID VINYL in a E E e 10x30x1 10x30x1 10x 30x 1 10 x 36 x 1 1 7 x 291 2 X Ka 7 x 291 2 x a 7 x 291 x Ka 7 x 351 2 x 1 8 1 Shipping 185 190 Operating 175 180 1 8 3 da J da 3 8 12 200 232 190 220 39 1 3 4 OPTIONAL FLOW le 14 62 41 OPTIONAL REGULATOR MOTORIZED en si WATER VALVE 5 8 15 9 OD as si COPPER 1 2 IPT OR WATER IN PANEL 1 2 EPT 41 25 286 8 00 MIN 2 o9 y Ee 1 75 44 CONDENSATE a 5 8 15 9 ID 77 VINYL HOSE Right Hand Configuration WATER OUT OUT WATER IN IN I WATER CONNECTIONS d 5 8 15 9 OD COPPER 1 2 IPT H OR 1 2 EPT I i lt 1 50 38 2 00 51 1 25 286 8 00 MIN gt l
80. h oo Relay Contacts N O 230 1 60 or 220 1 50 insulate unused lead HP High Pressure Switch Switch Temperature 4 FP1 thermistor provides freeze protection for JW1 Jumper Wire for Alarm gt P WATER When using ANTI FREEZE solutions LOC Loss of Charge Pressure Switch S Switch High Pressure cut JW3 jumper PB Power Terminal Block 5 Refer to Microprocessor Control Installation RVS Reversing Valve Solenoid Ke Switch Low Pressure Application and Operation manual for control TRANS Transformer wiring to the unit Low voltage wiring must be WV Water Valve Ground class 1 and voltage rated equal to or greater Field Line Voltage Wiring SCH unit Supply or awa 5 id Bee S iri i Factory cut jumper Dry contact will be Field Low Voltage Wiring q Wire Nu available between AL1 and AL2 Printed Circuit Trace y Mate N Lock 7 Transformer secondary ground via Deluxe D Optional wiring board standoffs and screws to control box Ground available from top 2 standoffs as shown Fig 19 50PEC Unit with Deluxe D and LON Controllers 20 AL BM BR CAP CB co CR DM FP1 FP2 HP JW1 LOC NLL PB RAS RVS TRANS wv Power Supply Ground Refer to Data Plate Neutral on 265V Systems Use copper conductors only 1 See Note 2 Lire teat Refer to Disconnect ESE box for optional Li power supply connection Optional Cod L2 ribbed Connection pe Ground
81. hange the setting to 10 F when using antifreeze in colder earth loop applications See Fig 30 CLIP JW3 WHEN USING ANTIFREEZE JW3 6 FP1 Low Temp AG FP2 Low Temp Dip Switches AQUAZONE CONTROL Complete C Control Shown Fig 30 Typical Aquazone Control Board Jumper Locations ACCESSORY CONNECTIONS Terminal labeled A on the control is provided to control accessory devices such as water valves electronic air cleaners humidifiers etc This signal operates with the compressor terminal See Fig 31 Refer to the specific unit wiring schematic for details NOTE The A terminal should only be used with 24 v signals not line voltage signals Terminal Strip SAL Typical Water Valve Fig 31 Typical Aquazone Accessory Wiring 30 WATER SOLENOID VALVES An external solenoid valve s should be used on ground water installations to shut off flow to the unit when the compressor is not operating A slow closing valve may be required to help reduce water hammer Figure 31 shows typical wiring for a 24 vac external solenoid valve Figures 32 and 33 illustrate typical slow closing water control valve wiring for Taco 500 Series and Taco ESP Series valves Slow closing valves take approximately 60 sec to open very little water will flow before 45 sec Once fully open an end switch allows the compressor to be energized only on valves with end switches Only relay or triac based electronic thermostats
82. ines Generally the more water flowing through the unit the less chance for scaling however flow rates over 3 gpm per ton can produce water or debris velocities that can erode the heat ex changer wall and ultimately produce leaks Proper water treatment can minimize tube fouling and pitting If such conditions are anticipated water treatment anal ysis is recommended Refer to the Carrier System Design Man ual Part 5 for general water conditioning information A CAUTION Follow all safety codes Wear safety glasses and rubber gloves when using inhibited hydrochloric acid solution Observe and follow acid manufacturer s instructions Clean condensers with an inhibited hydrochloric acid solu tion The acid can stain hands and clothing damage concrete and without inhibitor damage steel Cover surroundings to guard against splashing Vapors from vent pipe are not harmful but take care to prevent liquid from being carried over by the gases Warm solution acts faster but cold solution is just as effec tive if applied for a longer period GRAVITY FLOW METHOD Do not add solution faster than vent can exhaust the generated gases When condenser is full allow solution to remain overnight then drain condenser and flush with clean water Follow acid manufacturer s instructions See Fig 37 FILL CONDENSER WITH CLEANING SOLUTION DO NOT ADD SOLUTION MORE RAPIDLY THAN VENT CAN EXHAUST GASES CAUSED BY CHEMI
83. ith the kits or accessories when installing Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for brazing operations Have fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions attached to the unit Consult local building codes and applicable electrical codes for special installation requirements Understand the signal words DANGER WARNING and CAUTION DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500052 01 Printed in U S A Form 50PEC 2S Pg 1 7 09 Replaces 50PEC 1SI signifies hazards that could result in personal injury or death CAUTION is used to identify unsafe practices which would re sult in minor personal injury or product and property damage WARNING Electrical shock can cause personal injury or death Before installing or servicing system always turn off main power to system There may be more than one disconnect switch Turn off accessory heater power if applicable GENERAL The 50PEC water source heat pump console unit is a decen tralized room terminal designed for field connection to a closed circuit piping loop Units are typically installed in perimeter zones usually un der windows Supply air is di
84. ive Heating Set Point Effective Cooling Set Point 0 10 F Optimal Start Configuration User Admin Password level access d Occupied RH Set Point 0 100 Set Points Unoccupied RH Set Point 0 100 DCV CTRL Start Set Point 0 9999 ppm 500 ppm DCV Max CTRL Set Point 0 9999 ppm a I Defines the ending time of an Determines if this day is included Configuration No Yes Yes in this schedule Determines if this day is included L Tue gege No Yes Yes in this schedule ser Admin B I thi eg Schedule Wed Password level No Yes Yes Beterminias it nis day i included ACCESS in this schedule Determines if this day is included Weekly Schedule Determines if this day is included y Fri No Yes Yes in this schedule Sat No Yes Determines if this day is included in this schedule Determines if this day is included in this schedule Defines the start month of this hoilday schedule Defines the start day of this holiday Configuration L Start Day 0 12 schedule S f Determines the start time for this Schedule User Admin 00 00 29 59 schedule Defines the month to end this hoilday schedule Defines the day to end this holiday Password level y End Month access Exception End Day o o o ow wo a N Den eg y schedule chedules 1 i E I p Determines the time to end this End Time 00 00 24 00 schedule LEGEND BAS Building Automation System DCV
85. lable for use with units Use the fol lowing guidelines when installing supply and return hose assemblies 1 Install supply and return hoses fitted with swivel joint fittings at one end to prevent the hose from twisting 2 Use male adapters to secure the hose assembly to the unit and the riser 3 Do not allow the hose to twist during installation Twist ing may damage the hose wall or the rubber compound 4 Use pipe joint compound sparingly on the fitting adapt ers male pipe threads 5 Prevent sealant from reaching the joint s flared surfaces 6 Do not use pipe joint compound when Teflon thread tape is pre applied to hose assemblies or when flared end connections are used 7 Maximum torque that may be applied to brass fittings is 30 ft lb When a torque wrench is not used tighten brass fittings finger tight plus one quarter turn Tighten steel fittings as necessary 9 Use shut off balancing valves flow indicators and drain tees in the supply runout and return at each floor to aid in loop balancing and servicing SUPPLY AND RETURN PIPING System piping MUST comply with all applicable codes 1 Install a drain valve at the base of each supply and return riser to enable system flushing at start up and during rou tine servicing Teflon is a trademark of E du Pont de Nemours and Company o0 2 Install shut off balancing valves and unions at each unit to allow unit removal for servicing NOTE If flex
86. liary 0 100 reheat valve Viewable only if Leaving Air Auxiliary Heat Type 2 position 1 stage Elect or Modulating 0 100 Displays space RH Viewable only if Humidity Sensor Installed Displays if dehumidification is active Inactive Active Viewable only if Factory Dehumidification Reheat Installed 0 9999 ppm Displays the space CO level Displays current space temperature condition Displays the SPT that exceeded the alarm limit when SPT alarm above is in Alarm Displays the SPT alarm limit that was EE exceeded causing the alarm condition when SPT alarm above is in Alarm Displays the status of the Rnet SPT sensor ALARM is displayed Normal Alarm should the sensor fail to communicate with the control module Normal Alarm o Current IAQ ventilation condition Normal Alarm p Current compressor condition Normal Alarm Current SAT condition Current status of the condensate Normal Alarm drain overflow switch Normal Alarm Current status of the condenser water Normal Alarm Normal Alarm Current filter condition Normal Alarm Current space RH condition Normal Alarm Current status of the OAT Normal Alarm broadcast function Fan Displays fan speed status Equipment Status Compressor Capacity Damper Position H20 Economizer Auxiliary Heat Space RH Dehumidification IAQ CO2 SPT Alarm Status Normal Alarm Alarming SPT F SPT Alarm Limit SPT Sensor Alarm
87. main on The EH1 out put is turned on immediately With continuing Heat Stage 3 de mand EH2 will turn on after 10 minutes EH1 and EH2 are turned off immediately when the Heating Stage 3 demand is re moved The control reverts to Heating Stage 2 mode Output EH2 will be off if FP1 s temperature is greater than 45 F AND FP2 when shorted is greater than 110 F during Heating Stage 3 mode This condition will have a 30 second recognition time Also during Heating Stage 3 mode EH1 EH2 fan enable and fan speed will be ON if G input is not active EMERGENCY HEAT In Emergency Heat mode the fan enable and fan speed relays are turned on The EH1 output is turned on immediately With continuing emergency heat de mand EH2 will turn on after 5 minutes Fan enable and fan speed relays are turned off after a 60 second delay The control reverts to Standby mode Output EH1 EH2 fan enable and fan speed will be ON if the G input is not active during Emergency Heat mode COOLING STAGE 1 In Cooling Stage 1 mode the fan enable compressor and RV relays are turned on immediately If configured as stage 2 DIP switch set to OFF then the com pressor and fan will not turn on until there is a stage 2 demand The fan enable and compressor relays are turned off immedi ately when the Cooling Stage 1 demand is removed The con trol reverts to Standby mode The RV relay remains on until there is a heating demand If there is a master slave or
88. mand control ventilation Separate Sensor Table 5 SPT Sensors PART SENSOR NUMBER FEATURES SPT e Local access port Standard e No operator control e Slide potentiometer to adjust set point e Manual on button to override schedule e LED to show occupied status e Local access port e LCD display e Manual on button to override schedule e Warmer and cooler buttons to adjust set point SPT Plus SPPL SPT Pro e Info button to cycle through zone and outside air temperatures set points and local override time e Local access port e LCD display e Manual on button to override schedule e Warmer and cooler buttons to adjust set point SPT Pro e Info button to cycle through zone and outside air temperatures set points and local override time e Local access port SPPF e Fan speed The SPT Pro Plus fan speed adjustment has no effect in this application Wire SPT sensors to the WSHP Open controller s Rnet port An Rnetbus can consist of any of the following combinations of devices wired in a daisy chain configuration 1 SPT Plus SPT Pro or SPT Pro Plus sensor 1to4SPT Standard sensors 1to4SPT Standard sensors and 1 SPT Plus SPT Pro or SPT Pro Plus sensor Any of the above combinations plus up to 2 BACview Handheld but no more than 6 total devices NOTE If the Rnetbus has multiple SPT Standard sensors each sensor must be given a unique address on the Rnetbus See the Carrier Open Sensor
89. n be viewed using the BACview alarm status and alarm history To view the alarms 1 Navigate to the Alarm Status screen from the Home screen using the arrow softkeys The screen will display the current alarm status either normal or Alarm and al low for scrolling through the unit s alarm status 2 From the Alarm Status screen press the Alarm softkey to view the 100 most recent alarms which are labeled with date and time for easy reference NOTE Active faults can be viewed by scrolling down these faults indicate a possible bad sensor or some condi tion which may not merit an alarm 3 To view alarms which have been corrected scroll down through the Alarm screen to Return Top Normal screen NOTE Alarms are automatically reset once alarm con dition has been corrected See Table 18 for possible alarm cause and solution FAULT Main Power Problems HP Fault Code 2 High Pressure LP Fault Code 3 Low Pressure Loss of Charge FP1 Fault Code 4 Water Freeze Protection FP2 Fault Code 5 Air Coil Freeze Protection Condensate Fault Code 6 Over Under Voltage Code 7 Auto Resetting Performance Monitor Code 8 No Fault Code Shown Unit Short Cycles Only Fan Runs gt lt gt lt gt lt gt lt HH gt gt gt gt lt gt lt gt lt gt lt gt gt lt gt lt gt lt gt lt gt lt gt gt lt SOLUTION x x Green S
90. nal Y is not Terminal G must be active or the W terminal is disregarded EH1 is immediately turned on EH2 will turn on after 5 minutes of continuous emergency heat demand Units with Aquazone Deluxe D Control STANDBY FAN ONLY The compressor will be off The fan enable fan speed and reversing valve RV relays will be on if inputs are present If there is a Fan 1 demand the fan enable will immediately turn on If there is a Fan 2 demand the fan enable and fan speed will immediately turn on NOTE DIP switch 5 on S1 does not have an effect upon Fan 1 and Fan 2 outputs HEATING STAGE 1 In Heating Stage 1 mode the fan en able and compressor relays are turned on immediately Once the demand is removed the relays are turned off and the con trol reverts to Standby mode If there is a master slave or dual compressor application all compressor relays and related functions will operate per their associated DIP switch 2 setting on S1 HEATING STAGE 2 In Heating Stage 2 mode the fan en able and compressor relays remain on The fan speed relay is turned on immediately and turned off immediately once the de mand is removed The control reverts to Heating Stage 1 mode If there is a master slave or dual compressor application all compressor relays and related functions will operate per their associated DIP switch 2 setting on S1 HEATING STAGE 3 In Heating Stage 3 mode the fan en able fan speed and compressor relays re
91. nditioning Engineers 13256 1 standards Unit Start Up Cooling 1 Turn the unit thermostat to the cooling position and turn the fan speed switch to HI If the unit has an optional MCO thermostat set the selector switch to Cool Both the fan and compressor should run 2 Check for cool air delivery at unit grille 15 minutes after the unit has begun operating List the identification num ber of any machines that do not function at this time 3 Check the elevation and cleanliness of the condensate lines any dripping could be a sign of a blocked line 4 Select low fan speed Airflow should decrease and com pressor should operate 5 Slowly turn thermostat toward warmer position Both fan and compressor should shut off when thermostat set point equals room temperature Room temperature must be below 90 F for unit to shut off 6 Operate each heat pump in the heating cycle immediately after checking cooling cycle operation A time delay will prevent the compressor from re starting for approximate ly 5 minutes Operating Limits ENVIRONMENT This equipment is designed for indoor installation ONLY POWER SUPPLY A voltage variation of 10 of name plate utilization voltage is acceptable SOPEC UNIT STARTING CONDITIONS The 50PEC units will start and operate at an ambient temperature of 50 F with entering air temperature at 50 F entering water at 60 F and with both air and water at the flow rates used in the ARI
92. ng units on their sides may cause equipment damage Upon the arrival of equipment at the jobsite immediately store units in their shipping cartons in a clean dry area Store units in an upright position at all times Stack units a maxi mum of 3 units high Use pallets to separate each layer of units DO NOT remove equipment from shipping cartons until equipment is required for installation UNIT PROTECTION Cover console units on the jobsite with either shipping cartons vinyl film or an equivalent protective covering Cap the open ends of pipes stored on the jobsite In areas where painting plastering or the spraying of fireproof material has not been completed all due precautions must be taken to avoid physical damage to the units and con tamination by foreign material Physical damage and contami nation may prevent proper start up and may result in costly equipment clean up Examine all pipes fittings and valves before installing any of the system components Remove any dirt found on these components Step 3 Mount Unit 1 Unpack the unit from the shipping carton Remove the front cabinet by lifting up and away from the backplate Protect the cabinet from damage during installation by re turning it to its original vinyl pack until required 2 Remove compressor isolation plate shipping bolts 4 as shown in Fig 15 3 Using a carpenter s square and a level ensure the unit is level Shim the unit if necessary
93. noccupied heating set point and the condenser water is suitable Modulating Water Economizer Control The control has the capability to modulate a water valve to control condenser water flowing through a coil on the entering air side of the unit Cooling The purpose is to provide an economizer cooling function by using the water loop when the entering water loop temperature is suitable at least 5 F below space temperature If the water loop conditions are suitable then the valve will modulate open as required to maintain a supply air temperature that meets the load conditions Should the economizer coil ca pacity alone be insufficient for a period greater than 5 minutes or should a high humidity condition occur then the compressor will also be started to satisfy the load Should the SAT ap proach the minimum cooling SAT limit the economizer valve will modulate closed during compressor operation Heating Additionally the control will modulate the water valve should the entering water loop temperature be suitable for heating at least 5 F above space temperature and heat is required The valve will be controlled in a similar manner ex cept to satisfy the heating requirement Should the economizer coil capacity alone be insufficient to satisfy the space load con ditions for more than 5 minutes then the compressor will be started to satisfy the load Should the SAT approach the maxi mum heating SAT limit the economizer
94. nt Adjustment Auxiliary Heat Control et Point H20 Economizer Control Set Point Calculated IAQ Ventilation Damper position Active Compressor tages SAT Reset Filter Alarm Overflow Contact Occupancy Contact BAS Keypad Override OAT Input BACnet Keypad Configuration Network BACnet Time Master Clock Set Override Schedules Pushbutton Override ag Ji System Settings Occupancy Keypad Override Maintenance Schedules Occupancy Contact BAS on off Local Occupancy Schedules Local Holiday Schedule Schedules Configuration Local Override Schedules BACnet Occupancy Schedules LEGEND BAS Building Automation System DCV Demand Controlled Ventilation IAQ Indoor Air Quality OAT Outdoor Air Temperature RH Relative Humidity SAT Supply Air Temperature SPT Space Temperature TPI Third Party Integration PASSWORD LEVEL No Password required No Password required User Admin Password level access EDITABLE HEA TTB gt HH Bop i Cooling Heating Cont Fan Test Start Delay Dehumidify Auto Continuous Always On Unoccupied Occupied Always Occupied Local Schedule BACnet Schedule BAS Keypad Occupied Contact Holiday Schedule Override Schedule Pushbutton Override Unoccupied None s moment mm Normal Above Limit Below Limit Sensor Failure Inactive Connected Normal Alarm al 0 1 2 No Yes Closed Open
95. ntroller See Fig 25 29 2 Install a field supplied 250 ohm 1 4 watt 2 tolerance resistor across the controllers RH IAQ and Gnd terminals 3 Verify the the RH TAQ jumper is set to 0 to 5 vdc Wiring a Relative Humidity RH Sensor The RH sensor is used for zone humidity control dehumidification if the WSHP unit has a dehumidification device If not the sensor only monitors humidity NOTE Do not use a relative humidity sensor and CO sensor on the same zone controller if both sensors are powered off the board If sensors are externally powered both sensors may be used on the same zone controller If the cable used to wire the RH sensor to the controller will be less than 100 ft an unshielded 22 AWG American Wire Gage cable should be used If the cable will be greater than 100 ft a shield 22 AWG cable should be used The cable should have a maximum length of 500 ft To wire the RH sensor to the controller 1 Strip the outer jacket from the cable for at least 4 inches 2 Strip 4 in of insulation from each wire 3 Wire the sensor to the controller Step 6 Install Supply and Return Piping A CAUTION To ensure proper functioning of unit and system be sure to connect entering water to upper pipe on right hand units On left hand units connect entering water to lower pipe Failure to do so could result in equipment damage SUPPLY AND RETURN HOSES Optional pressure rated hose assemblies are avai
96. ogout will then be displayed to indicate the password was accepted 4 To set the Clock if it is not already displayed a Select System Settings from the Home screen then press Clockset b Scroll to hour minute and second using the arrow keys Use the number keypad to set actual time Cable P5 P5 c Scroll to day month and year using arrow keys Use number keypad to set date To set Daylight Savings Time DST a Push the DST softkey The display will indicate 02 00 060 which is equal to 2 00AM b To program the beginning and end dates scroll down to the beginning month and press the enter key The softkeys INCR and DECR will activate to increment the month in either direction Jan Feb March etc c Use number keys to select the day of month and year d Push the OK softkey to finalize the data To view configuration settings a Select the Config softkey b Select the Service Config softkey Scroll through the factory settings by using the up and down arrow keys See below for factory settings Only the following settings will need to be checked e of Fan Speeds This should be set to 1 for units with PSC motors and set to 3 for units with ECM motors e Compressor Stages This should be set to 1 e Factory Dehumidification Reheat Coil This should be set to none unless the modulating hot water reheat option is supplied in the unit then set to installed The condense
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98. oop systems must have a minimum of 15 psig during the summer and 40 psig during the winter Check P trap frequently for proper operation FILTERS Inspect filters Establish a regular maintenance schedule Clean or replace filters frequently depending on need To remove the filter from the SOPEC unit slide the filter out of its frame located in the return air opening at the bottom front of the unit When re installing the filter use the slide in rails of the filter frame to guide the filter into the proper position A CAUTION To avoid fouled machinery and extensive unit clean up DO NOT operate units without filters in place DO NOT use equipment as a temporary heat source during construction Refrigerant System Verify air and water flow rates are at proper levels before servicing To maintain sealed circuit ry integrity do not install service gages unless unit operation appears abnormal Condenser Cleaning Water cooled condensers may require cleaning of scale water deposits due to improperly maintained closed loop water systems Open water tower systems may require removal of sludge build up due to induced contaminants Local water conditions may cause excessive fouling or pitting of tubes Therefore condenser tubes should be cleaned at least once a year or more often if the water is contaminated Use standard coil cleaning procedures which are compatible with both the heat exchanger material and copper water l
99. operation DEMAND LIMIT The WSHP Open controller has the ability to accept three levels of demand limit from the network In response to a demand limit the unit will decrease its heating set point and increase its cooling set point to widen the range in order to immediately lower the electrical demand The amount of temperature adjustment in response is user adjustable for both heating and cooling and for each demand level The re sponse to a particular demand level may also be set to zero CONDENSER WATER LINKAGE The control pro vides optimized water loop operation using an universal con troller UC open loop controller Loop pump operation is auto matically controlled by WSHP equipment occupancy sched ules unoccupied demand and tenant override conditions Positive pump status feedback prevents nuisance fault trips The condenser water linkage operates when a request for con denser water pump operation is sent from each WSHP to the loop controller This request is generated whenever any WSHP is scheduled to be occupied is starting during optimal start for warm up or pull down prior to occupancy there is an unoccu pied heating or cooling demand or a tenant pushbutton over ride At each WSHP the water loop temperature and the loop pump status is given The WSHP will NOT start a compressor until the loop pumps are running or will shutdown the com pressors should the pumps stop This prevents the WSHP from operating without
100. ork is complete and it is time to install the chassis and cabinet 3 Verify that the refrigerant tubing is free of kinks or dents and that it does not touch other unit components 4 Inspect all electrical connections Connections must be clean and tight at the terminals A CAUTION To avoid equipment damage do not use these units as a source of heating or cooling during the construction pro cess The mechanical components and filters used in these units quickly become clogged with construction dirt and debris which may cause system damage Ax CAUTION To avoid the release of refrigerant into the atmosphere the refrigerant circuit of this unit must only be serviced by technicians who meet local regional and national profi ciency requirements A CAUTION All refrigerant discharged from this unit must be recovered without exception Technicians must follow industry accepted guidelines and all local regional and national statutes for the recovery and disposal of refrigerants A CAUTION When a compressor is removed from this unit system refrigerant circuit oil will remain in the compressor To avoid leakage of compressor oil the refrigerant lines of the compressor must be sealed after it is removed Table 1 50PEC Physical Data BASE UNIT 50PEC NOMINAL COOLING CAPACITY Btuh COMPRESSOR poo BL 28 18 9 300 12 300 13 800 16 000 Rotary BLOWER Motor Horsepower 1 20 Whe 1 8 1 3 Wheel Size D x W in 2 eac
101. ort to pose any drainage problems however the horizontal run of condensate line should be pitched at least 1 in for every 10 ft of run in the direction of flow Avoid low points and un pitched piping since dirt collects in these areas and may cause stoppage and overflow Field installation of a trap or vent is not required unless specified by local codes The SOPEC units are designed in a blow thru configuration The condensate drain pan is located on the outlet side of the blower so that the pressure in the drain pan is higher than the atmospheric pressure lt Brass Adapter Male Flare Supply Valve NE Foo N d d bi Return Valve 1 2 Flexible Hose 1 2 MPT x 1 2 PRE START UP System Cleaning and Flushing Cleaning and flushing the unit and system is the single most important step to ensure proper start up and continued efficient operation of the system WARNING To prevent injury or death due to electrical shock or contact with moving parts open untt disconnect before servicing unit Follow the instructions below to properly clean and flush the system A CAUTION DO NOT FLUSH SYSTEM THROUGH THE UNIT 1 Verify that electrical power to the units is disconnected and that the circulation pump is deenergized 2 Connect the supply hose directly to the return riser valve Use a single length of flexible hose as shown in Fig 35
102. r Maximum output current mA for IAQ sensor Corresponding value in ppm for minimum output current Corresponding value in ppm for maximum output current APPENDIX A WSHP SCREEN OPEN CONFIGURATION cont SCREEN NAME POINT NAME SPT Occupied Alarm Hysteresis SPT Alarm Delay SPT Unoccupied Low Alarm Temperature SPT Unoccupied High Alarm Temperature SAT Low SAT Alarm Limit SAT High SAT Alarm Limit Condensate Overflow Alarm Delay Space Humidity Occupied High Alarm Limit Space Humidity Alarm Configuration Delay y Alarm Configuration Space Humidity Unoccu pied High Alarm Limit AQ Ventilation Occupied High Alarm Limit IAQ Ventilation Alarm Delay Rnet Sensor SPT Alarm Rnet Sensor SAT Alarm Rnet Sensor Compressor Lockout Alarm Rnet Sensor Condenser Water Temperature Alarm Rnet Sensor Condensate Overflow Alarm Rnet Sensor Dirty Filter Alarm Rnet Sensor Space High Humidity Alarm Loop Control Network v o Configuration Number Loop Control Network Address Linkage Number of Linked Heat umps LEGEND BAS Building Automation System DCH Demand Controlled Ventilation IAQ Indoor Air Quality OAT Outdoor Air Temperature RH Relative Humidity SAT Supply Air Temperature SPT Space Temperature TPI Third Party Integration PASSWORD LEVEL Admin Password level access only SS 0 30 min per degree 90 175 F 120 F
103. r water limit needs to be verified depending on design parameters and application whether geothermal or boiler tower To view unit configuration settings a Select the Unit Configuration softkey then select Unit b Scroll through the unit settings by using the up and down arrow keys Unit settings include e Fan Mode Default Continuous e Fan Delay e Minimum SAT Cooling Default 50 F e Maximum SAT Heating Default 110 F Filter Service Alarm Must be set from 0 to 9999 hr To set local schedules a Select the Schedule softkey from the Configuration screen then press enter 0 RIOT y 44 z ARO poe JEFTE RTU MP BACview Local Access Cable Fig 36 BAC viev Display Interface Sponsored by ASHRAE American Society of Heating Refrigerat ing and Air Conditioning Engineers 38 b Select Weekly then press enter 7 schedules available c Select day and press enter d Press enter again and select ADD or DEL DECR or INCR set schedule e Enter ON OFF time then press continue f Press OK to apply and save to a particular day of the week g Continue to add the same or different schedule spe cific days of the week To add exceptions to the schedule i Press Add softkey ii Select exception type from following Date Date Range e Week N Day e Calender Reference 9 Go back to Home Screen 10 Remove BACviewS cable from SPT sensor by reversing the proce
104. relay A CAUTION To avoid equipment damage DO NOT leave system filled in a building without heat during the winter unless anti freeze is added to system water Condenser coils never fully drain by themselves and will freeze unless winterized with antifreeze START UP Use the procedure outlined below to initiate proper unit start up A WARNING When the disconnect switch is closed high voltage is present in some areas of the electrical panel Exercise cau tion when working with the energized equipment 1 Adjust all valves to the full open position and turn on the line power to all heat pump units 2 Operate each unit in the Cooling mode first Room temperature should be in the normal range 37 De approximately 50 to 80 F dry bulb Loop water tem perature entering the heat pumps should be at least 40 F but not in excess of 110 F Refer to Table 8 for more spe cific information on the operating parameters of units IMPORTANT Three factors determine the operating limits of a unit 1 return air temperature 2 water temperature and 3 ambient temperature Whenever any one of these factors is at a minimum or maximum level the other two factors must be at normal levels to ensure proper unit oper ation Flow rates must be at nominal ARI Air Condition ing and Refrigeration Institute ISO International Organization for Standardization ASHRAE American Society of Heating Refrigerating and Air Co
105. ressure in put normally opened or closed To configure for normally closed operation do not clip the jumper To configure for nor mally open operation clip the jumper Deluxe D Control DIP Switches The Deluxe D control has 2 DIP switch blocks Each DIP switch block has 8 switches and is labeled either S1 or S2 on the circuit board See Fig 19 20 and 22 DIP SWITCH BLOCK 1 S1 This set of switches offers the following options for Deluxe D control configuration Performance Monitor PM Set switch to enable or dis able performance monitor To enable the PM set the switch to ON To disable the PM set the switch to OFF Compressor Relay Staging Operation Switch 2 will en able or disable compressor relay staging operation The 36 compressor relay can be set to turn on with Stage 1 or Stage 2 call from the thermostat This setting is used with dual stage units units with 2 compressors and 2 Deluxe D controls or in master slave applications In master slave applications each compressor and fan will stage according to its switch 2 setting If switch is set to Stage 2 the compressor will have a 3 second delay before energizing during stage 2 demand NOTE If DIP switch is set for Stage 2 the alarm relay will not cycle during Test mode Heating Cooling Thermostat Type Switch 3 provides selec tion of thermostat type Heat pump or heat cool thermostats can be selected Select OFF for heat cool thermo
106. rm Relay Contacts Blower Motor Blower Relay Capacitor Circuit Breaker Sensor Condensate Overflow Compressor Relay Damper Motor Sensor Water Coil Freeze Protection Sensor Air Coil Freeze Protection High Pressure Switch Jumper Wire for Alarm Loss of Charge Pressure Switch Night Low Limit Switch Power Terminal Block Return Air Sensor Reversing Valve Solenoid Transformer Water Valve Field Line Voltage Wiring Field Low Voltage Wiring Printed Circuit Trace Optional wiring gt gt 8 3 3 El Ei z ZS i THERMOSTAT SEE NOTE 6 O H ou COMPR CAP RED FAN CAP GE DEN 2 I I I I I 1 I I I I I ALTERNATE DUAL CAPACITOR TERMINAL LOCATIONS AND PLASTIC TERMINAL INSULATOR COLORS UNIT SIZE COMPR CAP WILL PECO09 18 HAVE HIGHEST RATING GREEN WHITE BLACK NOTES 1 Compressor and blower motor thermally pro Relay Contactor Coil tected internally 2 All wiring to the unit must comply with local i codes w Solenoid Coll 3 Transformer is wired to 115 V WHT lead for Thermistor 115 1 60 units 265 V BRN lead for 265 1 60 units 240 V ORG lead for 240 1 50 units or o Circuit Breaker 208 V RED lead for 208 1 60 units Rewire transformer L1 connection if voltage is oo Relay Contacts N O 230 1 60 or 220 1 50 insulate unused lead o Switch Temperature 4 FP1 thermistor provides freeze protection for WATER When using AN
107. ry contact will be Field cae Wee c g available between AL1 and AL2 ER a i V Mate N Lock 7 Transformer secondary ground via Complete C Option Low Voltage Wiring Optional wiring board standoffs and screws to control box Printed Circuit Trace Registered trademark of Echelon Corporation Ground available from top 2 standoffs as shown Fig 18 50PEC Unit with Complete C and LON Controllers 19 Power Supply Refer to Data Plate Use copper conductors only See Note 2 Refer to Disconnect box for optional power supply connection RT cacas TERMINAL LOC NI COLORS UH H i i i i F H 1 I BLACK BLACK BLACK 1 0 0 y wt i CO FAN CAP i 0 0 i i mm o T i 7 z GREEN WHITE BLACK COMPRCAP WILL Connection Ground HAVE HIGHEST RATING LI plain LONWORKS PROTOCOL Ground Le Se Hesaan Neutral on 265V Systems H A CAP Compressor TRANSFORMER PRIMARY LEAD COLORS
108. scharge Air Temperature in Heating High Humidity LEGEND FP Freeze Protection LED LP RV High Pressure x x Fan motor relay Jumper G and R for fan operation Check for line voltage across BR contacts Check fan power enable relay operation if present px x Fan r Check for line voltage at motor Check capacitor Reversing valve Set for cooling demand and check 24 vac on RV coil and at control If RV is stuck run high pressure up by reducing water flow and while operating engage and disengage RV coil voltage to push valve X Thermostat setup Check for O RV setup not B x Thermostatwiring Check O wiring at heat pump Jumper O and R for RV coil X x Dirtyfilter Replace or clean Reduced or no airflow in Check for dirty air filter and clean or replace S heating Check fan motor operation and airflow restrictions High external static Check duct design and downstream interference x Reduced or no airflow in Check for dirty air filter and clean or replace NN cooling Check fan motor operation and airflow restrictions High external static Check duct design and downstream interference x x Leaky ductwork Check supply and return air temperatures at the unit and at distant duct registers if significantly different duct leaks are present Low refrigerant charge Check superheat and subcooling Restricted metering device Check superheat and subcooling Replace X Defective reversing val
109. scharged directly into the condi tioned space through discharge grilles located in the top of the unit IMPORTANT The installation of console water source heat pump units and all associated components parts and acces sories which make up the installation shall be in accordance with the regulations of ALL authorities having jurisdiction and MUST conform to all applicable codes It is the respon sibility of the installing contractor to determine and comply with ALL applicable codes and regulations INSTALLATION Step 1 Check Jobsite Units are typically in stalled along an outside wall of the room Refer to Fig 1 and 2 for an illustration showing piping locations Install units with adequate clearance to allow maintenance and servicing Refer to Table 1 and Fig 3 14 Locate the console unit so that it pro vides adequate air circulation throughout the room Installation operation and maintenance instructions are provided with each unit Before unit start up read all manuals and become familiar with the unit and its operation Thoroughly check out the system before operation Complete the inspections and instructions listed below to prepare a unit for installation 1 Compare the electrical data on the unit nameplate with ordering and shipping information to verify that the cor rect unit has been shipped 2 Keep both the chassis and cabinet covered with the ship ping carton until all plastering painting and finish w
110. se eventu al motor failure Conduct annual dry operation check and am perage check to ensure amp draw is no more than 10 greater than that indicated by serial plate data Compressor Conduct an amperage check annually on the compressor and fan motor Amperage draw should not exceed normal full load amps Maintain a log of amperage to detect deterioration prior to component failure Safety Control Reset The 50PEC heat pumps are furnished with high pressure low pressure and low temperature cutouts to prevent the machine from operating at abnormal conditions of temperature or water flow The contacts of the high pressure control used on SOPEC units are designed to open at 376 psig and automatically re close at 304 psig The Complete C or Deluxe D control monitors this and other functions such as refrigerant tempera tures and pressures and condensate overflow and will interrupt unit heating or cooling operation The machine must be reset manually Reset is accomplished by pressing the STOP button and then pushing either HI HEAT LOW HEAT HI COOL or LO COOL to restart the unit in the desired mode of operation The 50PEC unit can also be reset by opening and closing the supply power disconnect switch IMPORTANT If the unit must be reset more than twice check the unit for a dirty filter abnormal entering water temperature inadequate or excessive water flow and inter nal malfunctions If the unit continues to cut out contact
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112. ss in Step 1 11 Perform system test Flow Regulation Flow regulation can be accom plished by two methods Most water control valves have a built in flow adjustment valve Determine the flow rate by measuring the pressure drop through the unit heat exchanger See Table 12 Adjust the water control valve until a flow of 1 5 to 2 gpm per ton cooling is achieved Since the pressure constantly varies two pressure gages may be needed An alternative method for regulating flow is to install a flow control device These devices are typically an orifice of plastic material mounted on the outlet of the water control valve designed to allow a specified flow rate Occasionally these valves produce a velocity noise that can be reduced by applying some back pressure To accomplish this slightly close the leaving isolation valve of the water regulating device A CAUTION DO NOT use Stop Leak or any similar chemical agent in this system Addition of these chemicals to the loop water will foul the system and inhibit unit operation Antifreeze In areas where entering loop temperatures drop below 40 F or where piping will be routed through areas subject to freezing antifreeze is needed Alcohols and glycols are commonly used as antifreeze agents Freeze protection should be maintained to 15 F below the lowest expected entering loop temperature For example if the lowest expected entering loop temperature is 30 F the leaving loop
113. stats When in heat cool mode Y1 is used for Cooling Stage 1 Y2 is used for Cooling Stage 2 W1 is used for Heating Stage 1 and O W2 is used for Heating Stage 2 Select ON for heat pump applica tions In heat pump mode Y1 used is for Compressor Stage 1 Y2 is used for Compressor Stage 2 W1 is used for Heating Stage 3 or emergency heat and O W2 is used for RV heating or cooling depending upon switch 4 setting O B Thermostat Type Switch 4 provides selection for heat pump O B thermostats O is cooling output B is heating out put Select ON for heat pumps with O output Select OFF for heat pumps with B output Dehumidification Fan Mode Switch 5 provides selection of normal or dehumidification fan mode Select OFF for dehu midification mode The fan speed relay will remain OFF dur ing Cooling Stage 2 Select ON for normal mode The fan speed relay will turn on during Cooling Stage 2 in normal mode Switch 6 Not used Boilerless Operation Switch 7 provides selection of boiler less operation and works in conjunction with switch 8 In boil erless operation mode only the compressor is used for heating when FP1 is above the boilerless changeover temperature set by switch 8 below Select ON for normal operation or select OFF for boilerless operation Boilerless Changeover Temperature Switch 8 on S1 pro vides selection of boilerless changeover temperature set point Select OFF for set point of 50 F or select ON for
114. stem system or provide additional capabilities to Carrier s WSHP product line Most settings on the controller have factory defaults set for ease of installation There are a few settings that must be configured in the field and several settings that can be adjusted if required by unique job condi tions Refer to Appendix A WSHP Open Screen Configura tion In order to configure the unit a BACview display is required See Fig 36 NOTE If the WSHP Open control has lost its programming all display pixels will be displayed on the SPT sensor See the WSHP Third Party Integration Guide When the unit is OFF the SPT sensor will indicate OFF When power is applied the SPT sensor will indicate tempera ture in the space at 78 F To start up a unit with WSHP Open controls 1 To plug in the BACview handheld display into a SPT sensor point the two ears on the connector up and tilt the bottom of the plug toward you Insert the plug up into the SPT sensor while pushing the bottom of the plug away from you BACview should respond with Establishing Connec tion The Home screen will then appear on the display showing operating mode and space temperature Press any button to continue See Appendix A WSHP Open Screen Configuration for the hierarchal structure of the WSHP Open controller All functions of the controller can be set from the Home screen When the Login is requested type 1111 and push the OK softkey The L
115. tatus LED Off Check line voltage circuit breaker and disconnect Check primary secondary voltage on transformer x Reduced or no water flow in Check pump operation or valve operation setting cooling Check water flow adjust to proper flow rate Check fan motor operation and airflow restrictions Dirty air coil construction dust etc Perform preventative mainte Air temperature out of range Bring return air temperature within design parameters in heating x lt X JOvercharged with refrigerant Check superheat subcooling vs typical operating condition Compressor pump down at Check charge and start up water flow start up Reduced or no water flow in Check pump operation or water valve operation setting CZL Water temperature out of Bring water temperature within design parameters range xXx x Badthermistor Check temperature and impedance correlation High external static Check duct design and downstream interference x Improper freeze protect set Normal airside applications will require 30 F only ting 10 F vs 30 F Bad thermistor Check temperature and impedance correlation x Poor drainage Check for piping slope away from unit Check slope of unit toward outlet Poor venting Check vent location LL X Moistureonsensor_ Check for moisture shorting to air coil x J Heating mode FP2 gt 125F_ Check for poor airflow or overcharged unit Cooling mode FP1 gt 125F_ Check for poor water flow or airflow OR FP2 lt 4
116. test mode navigate from the BACview home screen to the config uration screen Choose the service screen and enable unit test The controller will then test the following FAN TEST Tests all fan speeds sequences fan from low to high and operates each speed for one minute Resets to disable on completion COMPRESSOR TEST Tests compressor cooling and heating operation Sequences cooling stage 1 then cooling stage 2 followed by heating stage 2 then reduces capacity to heating stage 1 Operates for 1 minute per step DEHUMIDIFICATION TEST Tests dehumidification mode Operates for 2 minutes AUXILIARY HEATING TEST Tests auxiliary heat Sequences fan on and enables heating coil for 1 minute HO ECONOMIZER TEST Tests entering returning water loop economizer operation Sequences fan and opens economizer water valve for one minute OPEN VENT DAMPER 100 TEST Tests outside air OA damper operation PREPOSITION OA DAMPER Prepositions OA damper actuator to set proper preload NOTE The auxiliary heating test H20 economizer test open vent damper 100 test and preposition OA damper features will not be visible on the screen unless configured Once tests are complete set unit test back to disable Unit will automatically reset to disable after 1 hour Retry Mode In Retry mode the status LED will start to flash slowly to signal that the control is trying to recover from an input fault The control will stage o
117. to assure proper installation Poor or inadequate installation may result in noisy unit operation or unattractive appearance 4 Select the proper fasteners to connect the backplate se curely to the wall FIELD SUPPLIED DISCONNECT SWITCH HEAT PUMP ROOM THERMOSTAT A Two power wires for single phase units B 1 heat 1 cool manual or auto changeover remote 24 V thermostat 5 Fasten the backplate onto the wall through the screw holes located in the back flange Secure the subbase in place Step 4 Wire Electrical Connections A WARNING To avoid possible injury or death due to electrical shock open the power supply disconnect switch and secure it in an open position during installation A CAUTION Use only copper conductors for field installed electrical wiring Unit terminals are not designed to accept other types of conductors All field installed wiring including the electrical ground MUST comply with National Electrical Code NEC as well as all applicable local codes In addition all field wiring must conform to the Class II temperature limitations described in the NEC Consult the unit wiring diagram located on the inside of the compressor access panel to ensure proper electrical hookup The installing or electrical contractor must make the field connec tions shown in Fig 16 when using field supplied disconnect Refer to unit wiring diagrams Fig 17 29 for a schematic of the field connections whi
118. treated water Since water varies for each locality contact a local water treatment company for the correct treatment chemicals to use in the area Set the boiler to raise the loop temperature to approximately 85 F A CAUTION To avoid possible damage to piping systems constructed of plastic piping DO NOT allow loop temperature to exceed 110F Circulate the solution for a minimum of 8 to 24 hours At the end of this period shut off the circulating pump and drain the solution Repeat system cleaning as necessary 9 When the cleaning process is complete remove the short circuited hoses Connect the hoses to the proper supply and return connections on each unit Refill the system and bleed off all air 10 Test the system pH with litmus paper The system water should be slightly alkaline pH 7 0 to 8 5 Add chemi cals as appropriate to maintain acidity levels A CAUTION DO NOT use Stop Leak or any similar chemical agent in this system Addition of these chemicals to the loop water will foul the system and will inhibit unit operation 11 When the system is successfully cleaned flushed refilled and bled check the main system panels safety cutouts and alarms Set the controls to properly maintain loop temperatures System Checkout When the installation is complete and the system is cleaned and flushed follow the system checkout procedure outlined below 1 Voltage Ensure voltage is within the utilization
119. ugh the configuration screen The following conditions must be true in order for this algorithm to run e Damper control is configured for DCV The unit is in an occupied mode The IAQ sensor reading is greater than the DCV start control set point The control has four user adjustable set points DCV start control set point DCV maximum control set point minimum damper position and DCV maximum damper position Two Position OA Damper The control can be configured to operate a ventilation damper in a two position ventilation mode to provide the minimum ventilation requirements during occupied periods WATERSIDE ECONOMIZER The WSHP Open control ler has the capability of providing modulating or two position water economizer operation for a field installed economizer coil mounted to the entering air side of the unit and connected to the condenser water loop in order to provide free cooling or preheating when water conditions are optimal Water econ omizer settings can be accessed through the equipment status screen The following conditions must be true for economizer operation SAT reading is available e LWT reading is available If occupied the SPT is greater than the occupied cooling set point or less than the occupied heating set point and the condenser water is suitable Space temperature reading is valid If unoccupied the SPT is greater than the unoccupied cooling set point or less than the u
120. unit IMPORTANT When a compressor is removed from this unit system refrigerant circuit oil will remain in the com pressor To avoid leakage of compressor oil the refrigerant lines of the compressor must be sealed after it is removed IMPORTANT All refrigerant discharged from this unit must be recovered without exception Technicians must fol low industry accepted guidelines and all local state and fed eral statutes for the recovery and disposal of refrigerants IMPORTANT To avoid the release of refrigerant into the atmosphere the refrigerant circuit of this unit must only be serviced by technicians who meet local state and federal proficiency requirements Unit Inspection Visually inspect the unit at least once a month Pay special attention to hose assemblies Repair any leaks and replace deteriorated hoses immediately Note any signs of deterioration or cracking System Flushing Properly clean and flush system periodically Refer to Pre Start Up System Cleaning and Flushing section Water Coil Keep air out of the water coil Check open loop systems to be sure the well head is not allowing air to in filtrate the water line Always keep lines airtight Inspect heat exchangers regularly and clean more frequently if the unit is located in a dirty environment The heat 45 systems should have an inverted P trap placed in the discharge line to keep water in the heat exchanger during off cycles Closed l
121. valve will modulate closed during compressor operation Two Position Water Economizer Control The control has the capability to control a NO or NC two position water valve to control condenser water flow through a coil on the entering air side of the unit 43 Cooling The purpose is to provide a cooling economizer function directly from the condenser water loop when the en tering water loop temperature is suitable at least 5 F below space temperature If the optional coil is provided and the wa ter loop conditions are suitable then the valve will open to pro vide cooling to the space when required Should the capacity be insufficient for a period greater than 5 minutes or should a high humidity condition occur then the compressor will be started to satisfy the load Should the SAT reach the minimum cooling SAT limit the economizer valve will close during compressor operation Heating Additionally the economizer control will open the water valve should the entering water loop temperature be suit able for heating at least 5 F above space temperature and heat is required The valve will be controlled in a similar man ner except to satisfy the heating requirement Should the coil capacity be insufficient to satisfy the space load for more than 5 minutes then the compressor will be started to satisfy the load Should the SAT reach the maximum heating SAT limit the economizer valve will close during compressor
122. ve Perform RV touch test RARA Thermostat improperly Check location and for air drafts behind thermostat located Unit undersized Recheck loads and sizing check sensible cooling load and heat pump capacity Scaling in water heat Perform scaling check and clean if necessary exchanger Inlet water too hot or cold Check load loop sizing loop backfill ground moisture O x x a Reduced or no airflow in Check for dirty air filter and clean or replace gt gt heating Check fan motor operation and airflow restrictions High external static Check duct design and downstream interference Reduced or no water flow in Check pump operation or valve operation setting cooling Check water flow adjust to proper flow rate x Unet water oo hot Check load loop sizing loop backfill ground moisture x Air temperature out of range Bring return air temperature within design parameters in heating x Scaling in water heat Perform scaling check and clean if necessary exchanger Unit overcharged Check superheat and subcooling Reweigh in charge Eak E Vacuum system and reweigh in charge System Check superheat and subcooling Replace Reduced water flow in Check pump operation or water valve operation setting heating Plugged strainer or filter Clean or replace Check water flow adjust to proper flow rate Le Water temperature out of Bring water temperature within design parameters range x Reduced airflow in cooling
123. vels Maximum allowable at maximum water temperature 50 F 10 O 75 F 24 O 100 F 38 C NR lt 20 ppm NR Cupronickel lt 150 ppm NR NR 304 SS lt 400 ppm lt 150 ppm 316 SS lt 1000 ppm lt 375 ppm Titanium gt 1000 ppm gt 375 ppm Erosion and Clogging Particulate Size and Erosion lt 10 ppm of particles anda maximum velocity of 6 fps Filtered for maximum 800 micron size lt 10 ppm lt 1 ppm sandfree for reinjection of particles and a maximum velocity of 6 fps Filtered for maximum 800 micron size Any particulate that is not removed can potentially clog components Brackish Use cupronickel heat exchanger when concentrations of calcium or sodium chloride are greater than 125 ppm are present Seawater is approximately 25 000 ppm LEGEND ttlf the concentration of these corrosives exceeds the maximum allow HWG Hot Water Generator able level then the potential for serious corrosion problems exists HX Heat Exchanger Sulfides in the water quickly oxidize when exposed to air requiring that N A Design Limits Not Applicable Considering Recirculating no agitation occur as the sample is taken Unless tested immediately Potable Water at the site the sample will require stabilization with a few drops of one NR Application Not Recommended Molar zinc acetate solution allowing accurate sulfide determination up SS Stainless Steel to 24 hours after sampling A low pH and high alkalinity cause system pro
124. water flow and thus tripping out on refriger ant pressure causing a lockout condition The WSHP Open controller control will prevent this from occurring Also the loop controller can be configured to start the pumps only after a configurable number of WSHPs are requesting operation from 1 N This can be used to prevent starting the entire loop op eration for only one WSHP Meanwhile the WSHPs will not operate if the loop pump status is off and therefore the WSHP compressor will not run COMPLETE C AND DELUXE D BOARD SYSTEM TEST System testing provides the ability to check the control operation The control enters a 20 minute Test mode by momentarily shorting the test pins All time delays are reduced by a factor of 15 Test Mode To enter Test mode on Complete C or Deluxe D controls cycle the power 3 times within 60 seconds The LED light emitting diode will flash a code representing the last fault when entering the Test mode The alarm relay will also power on and off during Test mode See Tables 15 17 To exit Test mode short the terminals for 3 seconds or cycle the power 3 times within 60 seconds NOTE The Deluxe D control has a flashing code and alarm relay cycling code that will both have the same numerical label For example flashing code 1 will have an alarm relay cycling code 1 Code 1 indicates the control has not faulted since the last power off to power on sequence WSHP Open Test Mode To enter WSHP Open
125. y nee Neutral on 265V Systems ALTERNATE DUAL CAPACITOR Refer to paa Plate b T H wu Compressor PLASTIC THRMINAL INSULATOR COLORS se copper conductors on Ground Q a e aaa se opp y cani See Note 2 C Refer to Disconnect BLACK BLACK BLACK box for optional Essays uq power supply connection s PEL OO B 3 OPTIONAL L2 ribbed Optional gt a Ground Connection L1 plain E E I H BLU l i Loom SEE i RED CL RE i NOTE 3 I H See Note 3 ca Dr ora Al i i SE BLK Trans Po e wer oe BRN ser i FAN CAP i SENSOR SUPPLY AIR ee LEAD COLOR ai i maa TEMPERATURE 208 220 RED HAVE HIGHEST RATING P es TEN Se TEMPERATURE eg 5 e Se WATER LON CONTROLLER Bi E pp eno enne DIGITAL Test Pins 9 d ee SE WALL SENSOR ween H e m o SEE NOTE 5 HP iii Ea mA ot ge Loc K SEE Dip Switch FPI NOTE 4 o El i I I Eres Status E RVS 2 vio Si E E vio COMPLETE C o d ET Microprocessor BLOWER MOTOR WIRING ll Control ogi UNITSIZE POLE A POLE B l ai JA PEC09 5 4 PEC12 18 4 3 Gp Sia ALL PEC s 4 LONWORKS
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Carrier AQUAZONE 50PEC09-18 User's Manual

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