Carrier 50PEC09-18 manual

Manufacturer reserves the right to disco ntinue, or change at any time, specifications or de signs without notice and without inc urring obligations. Catalog No . 04-53 500052-01 Printed in U .S .A. Form 50PEC-2SI Pg 1 7-09 Replaces: 50PEC-1SI Installation, Star t-Up and Ser vice Instructions CONTENTS Page SAFETY CONSIDERA TIONS . . . . . . . . . .[...]

2 signifies hazards that could result in personal injury or death. CAUTION is used to identify unsafe practices, which would re- sult in minor personal inj ury or product and property damage. 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 [...]

3 LEGEND *Dimension reduced by fitting if selected. NO TE: Dimensions shown are in inches. Dim ensions in parentheses are in millimeters. EPT — External Pip e Thread IPT — Internal Pipe Thread Fig. 1 — 50PEC09-15 Piping Dimensions WATER IN WATER OUT COMPRE SS OR ACCE SS PANEL CONTROL BOX 1. 8 4 (77) CONDEN S ATE 5/ 8 " (15.9) ID VINYL HO[...]

4 LEGEND *Dimension reduced by fitting if selected. NO TE: Dimensions shown are in inches. Dim ensions in parentheses are in millimeters. EPT — External Pip e Thread IPT — Internal Pipe T hread Fig. 2 — 50PEC18 Piping Dimensions Right Hand Configuration OPT MO T WA T OP T AU T VA L V W ATE R . 8 75 ( OD C 3 /4" IP 3 /4" E WATER IN W[...]

5 NO TES: 1. Dimensions are shown in inches. Dimensions in paren theses are in millimeters. 2. Access is reduced if opti onal disconnect box is selected. 3. Optional autoflow valv e, motorized w ater valv e and disconnect bo x are shown. Fig. 3 — 50PEC09-15 Bo tt om Return Ca binet Dimensions — Right Hand Piping 3 0 1 1.5 (292) 4.9 (125) 3 .5 ([...]

6 Fig. 4 — 50PEC18 Bo tt om Return Cabi net Dimensions — Right Hand Piping NO TES: 1. Dimensions are shown in inches. Dimens ions in parentheses are in millimeters. 2. Access is reduced if optional disconnect box is selected. 3. Optional autoflow v alve , motorized water v alv e and disconnect box are sho wn. a50-8340 3 0˚ 11.50 (292) 4.90 (12[...]

7 a50-8341 Fig. 5 — 50PEC09- 15 Bo tt om Return Ca binet Dimensions — Left Hand Piping NO TES: 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 valv e, motorized w ater valv e and disconnect bo x are shown. 3 0° 11 . 5 (292) 4.9 (1[...]

8 Fig. 6 — 50PEC18 Bo tt om Return Ca bi net Dimensions — Left Hand Piping NO TES: 1. Dimensions are shown in inches. Dimens ions in parentheses are in millimeters. 2. Access is reduced if optional disconnect box is selected. 3. Optional autoflow v alve , motorized water v alv e and disconnect box are shown. 3 0˚ 11.50 (292) 4.90 (125) 3 .50 ([...]

9 a50-8343 Fig. 7 — 50PEC09-15 Fr ont Return Ca binet Dimensions — Right Hand Pip ing NO TES: 1. Dimensions are shown in inches. Dimens ions in parentheses are in millimeters. 2. Access is reduced if optional disconnect box is selected. 3. Optional autoflow v alv e, motorized water v alv e and disconnect box are sho wn. 4 8 .0 3 0 3 .5 ( 8 9) 2[...]

10 a50-8344 Fig. 8 — 50PEC18 Fr ont Re turn Cabine t Dimensio ns — Right Hand Piping NO TES: 1. Dimensions are shown in inches. Dimens ions in parentheses are in millimeters. 2. Access is reduced if optional disconnect box is selected. 3. Optional autoflow v alv e, motorized water v alv e and disconnect box are sho wn. 54.00 3 0˚ 3 .50 ( 8 9) [...]

11 ° ( 8 9) L.H. (NOTE 2) .50 (1 3 ) 11.50 (292) .75 (19) 4.12 (105) (Note 2) a50-8345 Fig. 9 — 50PEC09-15 Fr ont Return Ca binet Dimensions — Left Hand Pip ing NO TES: 1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters. 2. Access is reduced if opti onal disconnect box is selected. 3. Optional autoflow valv e, moto[...]

12 a50-8346 Fig. 10 — 50PEC18 Fr ont Return Cabi net Dimensions — Left Hand Piping NO TES: 1. Dimensions are shown in inches. Dimens ions in parentheses are in millimeters. 2. Access is reduced if optional disconnect box is selected. 3. Optional autoflow valv e , motorized water valv e and disconnect bo x are shown. 54.00 3 0˚ 3 .50 ( 8 9) 21.[...]

13 Power S upply Blower Deck Blower Acce ss P a nel Compre ss or Acce ss P a nel Control Box 40.98 (1041) 4.46 (113) 0.75 (19) 0.75 (19) * 20.50 (521) 11. 5 4 (293) *16.66 (423) 30° 0.87 (22) Hard Wire Power S upply Blower Deck Blower Acce ss P a nel Compre ss or Acce ss P a nel Control Box 7.50 (191) 0.87 (22) 11.54 (293) 3.42 (87) *16.66 (423) 3[...]

14 NO TES: 1. Dimensions shown are in inches. Dimens ions in parentheses are in millimeters. 2. Optional autoflow valv e, motorized w ater v alv e and disconnect box are shown. 3. Chassis can mount directly on floor. Fig. 12 — 50PEC09-15 Chas sis Dimensions — Fr ont Return Power S upply Blower Deck Compre ss or Acce ss P a nel Control Box 40.98[...]

15 Fig. 13 — 50PEC18 Chassis Dimensions — Bottom Return *If optional subbase is selected, add 4.9 in. to dimension. NO TES: 1. Dimensions shown are in inches. Dimens ions in parentheses are in millimeters. 2. Optional autoflow valv e, motorized w ater valv e and disconnect bo x are shown. Blower Deck Blower Acce ss P a nel Compre ss or Acce ss [...]

16 Fig. 14 — 50PEC18 Chassis Dimensions — Fron t Return NO TES: 1. Dimensions shown are in inches. Dimens ions in parentheses are in millimeters. 2. Optional autoflow valve , motorized water v alv e and disconnect bo x are shown. 3. Chassis can mount directly on floor . Blower Deck Compre ss or Acce ss P a nel Control Box 46.98 (1193) 4.49 (114[...]

17 Step 2 — Chec k 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. Inspe ct 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[...]

18 Fig. 17 — 50PEC Unit Manual or A uto Changeover with Complete C Controller Wiring LEGEND NO TES: 1. Compressor and b low er motor thermally pro- tected internally . 2. All wiring to the unit must comply with local codes. 3. T ransf ormer is wired to 115-V (WHT) lead f or 115/1/60 units; 265-V (BRN) lead f or 265/1 /60 units; or 208-V (RED) lea[...]

19 LEGEND NO TES: 1. Compressor and b lower motor t hermally pro- tected internally . 2. All wiring to the unit m ust comply with local codes. 3. T ransf o rmer is wired to 115-V (WHT) lead f or 115/1/60 uni ts, 265 -V (BRN) lead f or 265/ 1/60 units, 240 -V (ORG) lead f or 240/1/50 units , or 208-V (RED) lead f or 208/1/60 units . Rewire tr ansfor[...]

20 *Optional wiring. AL — Alar m Relay Cont acts BM — Blo wer Motor CAP — Capacitor CB — Circuit Breaker CO — Sensor , Condensate Overflo w CR — Compressor Relay DM — Damper Moto r FP1 — Sensor, W ater Coil Freez e Protection FP2 — Sensor, Air Coil F r eeze Prot ection FSS — F an Speed Switch HP — High-Pressure Switch JW1 — [...]

21 *Optional wiring. AL — Alarm Relay Contacts BM — Blower Motor BR — Blower Rela y CAP — Capacitor CB — Circuit Breaker CO — Sensor , Condensate Ov erflo w CR — Compressor Relay DM — Damper Motor FP1 — Sensor , W ater Coil F reeze Protection FP2 — Sensor , Ai r Coil F reez e Protection HP — High-Pressure Switch JW1 — Jumper[...]

22 COMPLETE C CONTROL BR CR CAP PB GROUND TRANSFORMER BRN Y EL Y W O G R C AL1 AL2 A P1 ALARM RELA Y SEE NOTE 6 JW1 WV COMPRESSOR COOLING FA N 24 V AC COMMON ALARM CLASS 1 WIRING REQUIRED INSIDE CONTROL BOX Y O G R C L CLASS 1 OR 2 WIRING ACCEPT ABLE OUTSIDE CONTROL BOX TYPICAL HEA T PUMP T -ST A T SEE NOTE 5 BRN YEL BLU R Y JW3 FP1 JW2 FP2 SEE NOT[...]

23 AL — Alar m Relay Contacts BM — Blo wer Motor BR — Blower Rela y CAP — Capacitor CB — Circuit Breaker CO — Sensor , Condensate Overflo w CR — Compres sor Relay DM — Damper Motor FP1 — Sensor , W ater Coil F reez e Protection FP2 — Sensor , Air Coil F reez e Protection FSS — F an Speed Swit ch HP — High-Pressure Switch JW1[...]

24 Y W O G R C AL1 AL2 A CR CMP1 FA N PWR HS1/EXH/RVS PREMIER LINK CR COMPLETE C CONTROL J4 J6 J5 J8 J1 PWR S P S A L W CMPSAFE T T T Y1 G R C AL1 CMP1 FA N PWR PREMIER LINK DELUXE D CONTROL J4 J8 J1 PWR CMPSAFE HS2 HS1 CMP2 Y2 W1 O/W2 J6 J5 S P T S A T L W T LEGEND NO TE: Rev ersing v alv e is on in Cooling mode. CR — Control Relay LW T — Lea [...]

25 Fig. 25 — Units wi th Complete C and WSHP Open Multiple Protocol Controls WH S P-OPEN A50-8355 LEGEND BM — Blo wer Motor BR — Blow er Rela y CO — Condensate Overflo w LW T — Lea ving W ater T emperature N.C. — Normally Clo sed OA D — Outside Air Damper OCC — Occupancy Input Contact RH — Relative Humidity SA T — Supply Air T e[...]

26 W S HP-OPEN Fig. 26 — Units with Deluxe D and WSHP Open Mul tiple Protocol Controls A50-8354 LEGEND BM — Blo wer Motor CO — Condensate Overflo w LW T — Leaving W ater T emperature N.C. — Normally Clo sed OA D — Outside Air Damper OCC — Occupancy Input Contact RH — Relative Humidity SA T — Supply Air T emperature SPT — Space T[...]

27 W S HP-OPEN Fig. 27 — Units wi th Complete C, ECM a nd WSHP Open Mu ltiple Protocol Controls A50-8356 LEGEND CO — Condensate Overflo w LW T — Leaving W ater T emperature N.C. — Normally Clo sed OA D — Outside Air Damper OCC — Occupancy Input Contact RH — Relative Humidity SA T — Supply Air T emperature SPT — Space T emperature[...]

28 W S HP-OPEN Fig. 28 — Units with Deluxe D, ECM and W SHP Open Multiple Protoc ol Controls A50-8353 LEGEND CO — Condensate Overflo w LW T — Leaving W ater T emperature N.C. — Normally Clo sed OA D — Outside Air Damper OCC — Occupancy Input Contact RH — Relative Humidity SA T — Supply Air T emperature SPT — Space T emperature[...]

29 012207-1BT4 8 5BT LED1 DB In s t a ll BT4 8 5 where device i s loc a ted a t the end of network s egment only. + 24v a c (If not in s t a lled, it m us t b e connected to DO-5) DEHUMIDIFY OUTPUT CONTACT (DO-6) (FACTORY OPTION) FAN S PEED (DO-7) (MED OR LOW) OA DAMPER (AO-2) FAN S PEED (DO- 8 ) (HIGH OR FAN ON ) LWT (Inp u t 6) S AT (LAT) (Inp u [...]

30 Table 2 — Electrical Data — 50PEC Uni ts LEGEND Step 5 — Wire Low V oltage Connections W A TER FREEZE PROTECTION — T h e Aq ua z o n e ™ co n - trol allows the field selection of source fluid freeze protection points through jumpers. The fact ory setting of jumper JW3 (FP1) is set for water at 30 F . In earth loop applications, jumper [...]

31 OP TIONAL W ALL-MOUNTED THERMOST A T — T h e 50PEC water source heat pump units are built with standard in- ternal thermostats in either manual changeover (MCO) or auto- matic changeover (ACO) configur ation. 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 acc[...]

32 Table 6 — Rnet Wiri ng Specificatio ns LEGEND T o wire the SP T sensor to the controller : 1. Partially cut , then bend and pull of f the outer jacket of the Rnet cable(s), being careful not to nick the inner insulation. 2. Strip ab out 1 / 4 in. of the inner insulation from each wire. See Fig. 34. 3. W ire each terminal on the sensor to the s[...]

33 2. Install shut-off/bal ancing valves and unions at each unit to allow unit removal for servicing. NOTE: If flex hoses are used, unions are not necessary . 3. Install strainers at the inlet of each system circulating pump. 4. Before making the final water connections, flush the sys- tem as described in the Pre-Start-Up section of this manual. Af[...]

34 8. Refill the system with clea n, chemically treated water . Since water varies for each lo cality , 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 . . Circulate the solution for a minimum of 8 to 24 hours. At the end of this perio[...]

35 Table 9 — Water Quality Guideline s LEGEND *Heat exchanger mate rials considered ar e copper, cupronickel, 304 SS (stainless ste el), 316 SS , titanium. †Closed reci rculating sy stem is iden tified by a closed p ressur ized piping system. **Recircul ating open wells shoul d obser ve the open recirculat ing design consideratio ns. ††If t[...]

36 FIELD SELECT ABLE 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. Complete C Control J umper Settings (See Fig. 17, 18, and 21) W A TER COIL FREEZE PROTECTION (FP1) LIMI T SETTING — Se l e c t j u mp e r 3 , ( JW 3 - F P 1 Lo w T em p ) t o cho[...]

37 Table 11 — DIP Switch Bloc k S2 — Accessory 2 Re lay Options LEGEND NO TE: All other switch combinations are in v alid. Auto Dehumidification Mode or High Fan Mode — Switch 7 provides selection of auto dehumidification fan m ode or high fan mode. In auto dehumidification fan mode, the fan speed relay will remain off during Cooling S tage 2[...]

38 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[...]

39 b. Select W eekly , then pres s 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 appl y and save to a particular day of the week. g. Continue to add the same or dif ferent sched ule spe- cific days of th[...]

40 Table 13 — Approximate Fluid Volume (gal) per 100 f t of Pipe LEGEND NO TE: V olume of heat ex changer is appro ximately 1.0 gallon. Table 14 — Antifr eeze Percentages by Volume Cooling T ower/Boi ler Systems — Th ese systems typically use a common loop maintained at 60 to 90 F . Carrier recommends using a closed circuit evaporative coolin[...]

41 application, all compressor relays and related functions will track with their associated DIP switch 2 on S1. NIGHT LOW LIMIT (NLL) ST AGED HEA TING — 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[...]

42 maximum speed. If the SA T continues to fall 5 F below the minimum SA T 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. Th[...]

43 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 2 level in- creases. The control will begin to proportionally increase venti- lation when the CO 2 level rises above the start ventilation set point and will reach the full [...]

44 label. For example, flashing c ode 1 will have an alarm relay cycling code 1. Code 1 indica tes the control has not faulted since the last power-off to power -on sequence. WSHP Open T est Mode — T o enter WSHP Open test mode, navigate from the BAC view 6 home screen to the config- uration screen. Choose the servic e screen and enable unit test[...]

45 Table 17 — Aquazone™ Deluxe D Control Current LED Status an d Alarm Relay Operations LEGEND NO TES: 1. If there is no f ault in memory , the F ault LED will flash code 1. 2. Codes will be displa yed with a 10- second F ault LED pause. 3. Slow flash is 1 flash e v ery 2 seconds. 4. F ast flash is 2 flashes e v ery 1 second. 5. EXAMPLE: “Fla[...]

46 produce water (or debris) velocitie s 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. [...]

47 Checkin g System Char ge — Units are shipped with full operating charge. If rechar ging 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 di schar ge line [...]

48 Table 18 — Troubleshooting LEGEND F AUL T HEA TING COOLING POSSIBLE CAUSE SOLUTION Main Power Problems X X Gree n Status LED Off Check line voltage circuit breaker and disconnect . Check for line v oltage bet ween L1 and L2 on the co ntactor. Check f or 24-vac between R and C on con troller . Check primar y/ secondar y voltage on t ransformer [...]

49 Table 18 — Troubleshooting ( cont) LEGEND F AUL T HEA TING COOLING POSSIBLE CAUSE SOLUTION Only Compressor Runs X X Ther mostat wir ing Check G wiring at heat pump. Jumper G and R for fan operation. Check Y and W wiring at hea t pump . Jumper Y and R for compressor operatio n in T es t mode. X X Fan motor relay Jumper G and R for f an operatio[...]

50 APPENDIX A — WSHP OPEN SCREEN CONFIGURA TION LEGEND SCREEN NAME POINT NAME PAS SWO RD LEVEL EDITABLE RANGE DEFAULT NOTES Equipment Status Operati ng Mode No P assword Re q uired Off, F an Only , Economize , Cooling, Heating, Cont F an, T est, Start Dela y , Dehumidify Display s unit operat ing mode SPT F Displa ys SPT SA T F Displa ys SA T Con[...]

51 APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont) LEGEND SCREEN NAME POINT NAME PA SS WO RD LEVEL EDITABLE RANGE DEFAULT NOTES Unit Maintenance Operating Mode No P assw ord re q uired Off, F an Only ,Econom ize, Cooling, Heating, Cont F an, T est, Start Delay , Dehumidify Display s unit operating mode F an Oper ating Mode Auto /Continuou s/Al[...]

52 APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont) LEGEND SCREEN NAME P OINT NAME PA S SWO RD LEVEL EDITABLE RANG E DEFAULT NOTES Configuration Set Points Occupied Heating User/Admin P assw ord le vel access X 40 - 90 F 72 F Defi nes the Occupied Heating Set P oint Occupied Cooling X 55 - 99 F 76 F Def ines the Occupied Cooling Set P oint Unoc[...]

53 APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont) LEGEND SCREEN NAME POINT NAME PAS SW OR D LEVE L EDITABLE RANGE DEFAULT NOTES Configuration Unit Configuration F an Mode Admin P ass word lev el access only X Aut o/Continuous/ Always On Continuous Aut o= Intermittant operation during both occupied and unoccupied periods/ Continuou s = Intermi[...]

54 APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont) LEGEND SCREEN NAME POINT NAME PAS SW OR D LEVEL EDITABLE RANGE DEFAULT NOTES Configuration Service Configuration # of F an Speeds Admin P ass word lev el access only X 1,2 ,3 3 Used to set n umber of fan mot or speeds G Output T ype X F an On/F an Low Fan On When set to F an On, G out put is e[...]

55 APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont) LEGEND SCREEN NAME P OINT NAME PA S SWO RD LEVEL EDITABLE RANGE DEFAUL T NOTES Configuration Alarm Configuration SPT Occupied Alarm Hysteresis Admin P assw ord lev el access only X2 - 2 0 F 5 F Defines the h ysteresis applied abo ve the cooling and belo w the heating set points bef ore an alar[...]

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Manufacturer reserves the right to disco ntinue, or change at any time, specificatio ns or designs without notice and without inc urring obligations. Catalog No . 04-53 500052-01 Printed in U .S .A. Form 50PEC-2SI Pg 58 7-09 Replaces: 50PEC-1SI Copy right 2009 Carrier Cor poration[...]

CL-1 50PEC UNIT ST ART -UP CHECKLIST CUSTOMER: ___________________________ JOB NAME: _ _____________________________________ _ MODEL NO.:___________________________ S ERIAL NO.: ____________________ DA TE: _________ I. PRE-ST ART -UP DOES THE UNIT VOL T AGE CORRESPOND WI TH THE SUPPL Y VOL T AGE A V AILABLE ? (Y/N) HA VE THE POWER AND CONTROL WIRIN[...]

Manufacturer reserves the right to disco ntinue, or change at any time, specificatio ns or designs without notice and without inc urring obligations. Catalog No . 04-53 500052-01 Printed in U .S. A. Form 50PEC-2SI CL-2 7-09 Replaces: 50PE C-1SI Copy right 2009 Carrier Cor poration - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [...]