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Carrier 50RHE006-060 - page 1
Manufa cturer res erves the right to discon tinue, or chang e at any time , specificat ions or designs witho ut notic e and wit hout inc urring obligati ons. Catalo g No. 005-0004 2 Printe d in U.S.A. Form 50 RHE-C1 SI Pg 1 2-04 Repla ces: N ew Book 1 4 Ta b 5 a 5 a Installation, Star t-Up , and Ser vice Instr uctions CONTENTS Page SAFETY CONSIDERA ...
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Carrier 50RHE006-060 - page 2
2 Follow all safety codes. W ear safety glasses and w ork gloves. Use quenching cloth for brazing operations. Have fir e extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and electrical codes for speci al installation requirements. Understand the signal ...
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Carrier 50RHE006-060 - page 3
3 IN S PE C T UN IT — T o prepare the unit for i nstallation, com- plete the procedures l isted below: 1. Compare the electrical data on the unit nameplate with ordering and shi pping information to verify that the correct unit has been shipped. 2. V erify th at the unit is the correct model for the entering water temperat ure of the job. 3. Do n ...
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Carrier 50RHE006-060 - page 4
4 Right Return Left Discharge F ront N P Blower Outlet M O Legend CAP=Control Access P anel CSP=Compressor Service Panel BSP=Blower Service Panel ASP=Alternate Ser vice Panel Right Return Front Left Discharge 3 CSP Back Discharge Condensate 3/4 ” F P T F Front-Vie w K L 2 1 E A CAP BSP Right Return Right View - Air Coil Opening Air Coil C V U B A ...
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Carrier 50RHE006-060 - page 5
5 Field-Supplied Electric Heat (if applicable) Filter Access ReturnLoop Supply Loop W ater Out W ater In Integral hanger support- pre-attached in factory Field-supplied transition to minimize pressure loss 3/8” threaded rods (by others) Return Air (Ductwork not shown) Thermostat Wiring Power Wiring Balancing V alve (Field installed and calibrated ...
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Carrier 50RHE006-060 - page 6
6 Step 3 — Unit Location — T he following guidelines should be considered when choosing a location for a WSHP unit: • Units are for indo or use only • Locate in areas where ambient temperatures are between 4.4 C and 37.8 C and relative hum idity is no greater than 75% • Provide sufficient sp ace for water , electrical and duct connections ...
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Carrier 50RHE006-060 - page 7
7 Step 4 — Mounting the Unit — Horizontal units should be mounted using the factory-installed hangers. Proper attachment of hanging rods t o building structure is critical for safety . See Fig. 2 and 5. Rod attac hments must be able to sup- port the weight of t he unit. See T able 1 for unit operating weights. Step 5 — Duct System — Size th ...
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Carrier 50RHE006-060 - page 8
8 Step 7 — Piping Connections — De pending on the application, there are 3 types of WSHP piping s ystems to choose from: water loop, ground-water and ground loop. Refer to Piping Section of Carrier System Design Manual for addi- tional information. All WSHP units use low tempera ture soldered female pi pe thread fittings for water connections t ...
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Carrier 50RHE006-060 - page 9
9 W ater S upply and Quantity — C heck water supply . W ater supply should be plenti ful and of good quality . See T able 2 for water quality guidelines. In all applications, the quality of the w ater circulat ed through the h eat exchanger m ust fall within the range s listed in the W ater Qu ality Guide lines ta ble. C onsult a loca l water t r ...
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Carrier 50RHE006-060 - page 10
10 RED BLU L ( 3 ) M ( 2 ) H ( 1 ) POWER SUPPL Y REFER TO DA T A PLA TE USE COPPER CONDUCTORS ONL Y EARTH (GRD) N (NEUTRAL) L RED 220V ORG 240V BLK YEL BLU 24V SEE NOTE 3 TRANS CB* 1 2 3 4 5 6 BLK YEL BLU BLK RED YEL CAP ACITOR BRN YEL OR WHT BR 68 24 PSC FA N MTR G/Y G/Y 68 24 CR BLK COMPRESSOR RED* BLU* ST ART ASSIST (WHEN NEEDED) 3 AIR FLOW SETT ...
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Carrier 50RHE006-060 - page 11
11 (CAP-TUBE UNITS) OR LUG T3 T2 T1 CC PB BR1 BR2 TRANS COMPONENT LOCA TION CXM SEE NO TE 5 TY PI CA L T- S TAT Y O G R C L COMPR. COOLING FA N 24V AC LOW TEMP ALARM SEE NO TE 6 FOR DR Y ALARM CONT ACT Y O G R C AL1 W AL2 A P1 Y R C ALARM RELA Y SEE NO TE 6 JW1 JW3 FP1 JW2 FP2 COMMON LOW TEMP SEE NO TE 4 ST A TUS LED G CXM MICROPR OCESSOR CONTROL L ...
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Carrier 50RHE006-060 - page 12
12 FA N ENABLE RELA Y POWER SUPPL Y REFER TO DA T A PLA TE USE COPPER CONDUCTORS ONL Y SEE NOTE 8 EARTH (GRD) N (NEUTRAL) L 1 2 3 4 5 6 G/Y G/Y YEL ST ART ASSIST ( WHEN NEEDED ) RED BLK BLK YEL RED BLU 68 24 CR COMPRESSOR RED* BLU* RED CAP S C R BLK 24 BR1 68 YEL BLK YEL OR WHT BLK BLU RED BMC BRN BR2 NO COM NC SEE NOTE 3 TRANS BLK RED ( 220V ) ORG ...
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Carrier 50RHE006-060 - page 13
13 POWER SUPPL Y REFER TO DA T A PLA TE USE COPPER CONDUCTORS ONL Y EARTH (GND) N (NEUTRAL) L3 L2 L1 CB YEL 24V RED (220V) BLK BLK G/Y BLK BLK BLK BLK ORG (240V) YEL O R WHT BRN YEL BLK BLK BLK BLK L3 L2 L1 T3 T2 T1 CC CC G/Y G/Y GROUND LUG BLK BLU RED BM H M L 6 7 8 BR2 COMPR. T3 T2 T1 SEE NOTE 8 6 5 4 3 2 1 BMC LUG T3 T2 T1 CC PB BR1 BR2 TRANS CO ...
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Carrier 50RHE006-060 - page 14
14 Table 3 — E lectrical Data LEGEND POWER CONNECTION — Mak e line voltage connection by connecting the incoming line vo ltage wires to the L side of the CC ter minal as shown i n Fig. 13. See T able 3 for correct wire an d maximum overcurr ent protect ion sizing. SU P P L Y VO L T A G E — Operating voltage to unit must be within voltage rang ...
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Carrier 50RHE006-060 - page 15
15 PSC (PERM ANENT S PLIT CAP ACIT OR) BLO WER SPEE D SELEC TION — All W at er Source Heat Pumps are fac tory set to deliver rated ai rflow at nominal stat ic (37 Pa) on medium speed. Where higher static i s needed, high spee d can be utilized (100 to 125 Pa). Low speed will deliver a pproximately 85% of rated airflow (25 Pa). The PSC blower fan ...
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Carrier 50RHE006-060 - page 16
16 Step 9 — Low V olta ge Wiring (See Fig. 15) TH E RM O S T A T C ON N EC T I O NS — The thermostat should be wired directly to the Aquazone™ cont rol board. See Fig. 9-12. W A TER FREEZE PROTECTION — The Aquazone control allows the field selection of source fluid freeze protection points through jumpers. The factory setting of jumper JW3 ...
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Carrier 50RHE006-060 - page 17
17 AI R C O IL — T o obtain maximum perfor mance, clean the air coil before starting the unit. A ten percent sol ution of dish- washing detergent and w ater is recommende d for both sides of the coil. Rinse t horoughly with water . FIELD SELECT ABLE INPUTS Jumpers and DIP (dual in-line pac kage) switches on th e control board are used to customiz ...
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Carrier 50RHE006-060 - page 18
18 Table 5 — DIP Switch Block S2 — Acces sory 1 Relay Option s LEGEND NO TE: All other DIP s witch combinations are invalid. Table 6 — DIP Switch Block S2 — Accessory 2 Relay O ptions LEGEND NO TE: All other s witch combinations are i nvali d. Auto Dehumidif ication Mode or High Fan M ode —S w i t c h7 provides selection of auto dehumidif ...
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Carrier 50RHE006-060 - page 19
19 Scro ll Compressor Rotation — It is important to be cer tain com presso r is rotati ng in the pr oper di recti on. T o determine whether or not compre ssor is rotating in the pr oper direction: 1. Connect service gages to suction and discharge pressure fitt ings . 2. Energize the compressor . 3. The suction pressure should drop and the dis cha ...
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Carrier 50RHE006-060 - page 20
20 Table 9 — Typi cal Uni t Operatin g Pres sures and T emperat ures LEGEND NO TES: 1. Based o n nomin al 54 L /s per kW air flow and 21 ° C EA T heati ng and 2 6.7/ 194° C EA T cool ing. 2. Cooling ai r and wa ter n umber s can v ary great ly with c hang es in hum idit y . 3. Subcool ing is b ased u pon the he ad pr essure at co mpres sor ser ...
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Carrier 50RHE006-060 - page 21
21 Anti free ze — In areas where ent ering loop temperatures drop below 4.4 C or where piping will be routed through areas subject to free zing, antifreeze is needed. Alcohols and glyc ols are commonly used as anti freeze agents. Fr eeze prot ection shoul d be mainta ined to 8.3 K belo w the lowes t expec ted ent erin g loop temp erature . For ex ...
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Carrier 50RHE006-060 - page 22
22 Output EH2 will be off if FP1 is greater than 7.2 C and FP2 (when shorted) is great er than 43.3 C during Heating Stage 3 mode. This condition will have a 30-second recognition time. Also, during Heating Stage 3 mode, EH1, EH 2, Fan Enable, and Fan Speed will be ON i f G input is not active. EM E R GE N C Y HE A T — In Emergency Heat mode, t h ...
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Carrier 50RHE006-060 - page 23
23 Retry Mode — In Re try 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 s tage off the outputs and try to again satisfy the thermostat used to terminal Y . Once the ther- mostat input calls are satisfied, the control will continue normal operation. NOTE: If 3 ...
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Carrier 50RHE006-060 - page 24
24 Condensate Drain P ans — Chec k condensate drain pans for algae growth t wice a year . If algae growth is apparent , consult a water treatment speci alist for proper chemic al treat- ment. Applying an algaecide every three months will typically eliminate algae problems in most locations. Refrigerant System — V erify air a nd water flo w rate ...
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Carrier 50RHE006-060 - page 25
25 5. Read liquid line temperature on thermometer; then subtract from bubble point temperature. The di fference equals subcooling temperatu re. 6. Compare the subcooling temperature with the normal temper ature li sted in T able 9. If th e measu red liqui d line temperature does not agree w ith the required liquid line temperature, AD D refrigerant ...
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Carrier 50RHE006-060 - page 26
26 Table 16 — Troubleshooting LEGEND RV — Re versing V alve F A UL T HEA TING COOLING POSSIBLE CA USE SO LUTION Main P ower Prob lems X X Green Stat us LED Off Check line v olta ge circuit b reak er and discon nect. Chec k f or line v oltage bet ween L1 and L2 on t he contacto r . Chec k f or 24 v ac betwee n R and C on controller . Chec k prim ...
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Carrier 50RHE006-060 - page 27
27 Table 16 — Troubleshooting (cont) LEGEND RV — Re versing V alve F A UL T HEA TING COOLING POSSIBLE CA USE SOLUTION Only Compressor Runs X X Thermostat wiring Check G wi ring at heat pump . Jumper G an d R f or f an oper ation. X X Fa n motor rela y Jumper G and R f or fan ope ration. Ch eck f or line volt age across BR contacts. Chec k fan p ...
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Carrier 50RHE006-060 - page 28
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Carrier 50RHE006-060 - page 29
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Carrier 50RHE006-060 - page 30
Manufa cturer reser ves the right to discon tinue, or change at any time, specificat ions or designs w ithout not ice and without incurrin g obligations. Catalog No. 005-00042 Pr inted in U.S .A. Form 50RHE-C1SI Pg 30 2-04 Replaces: New Book 1 4 Ta b 5 a 5 a Copyright 2 004 Car rier Cor poration ...
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Carrier 50RHE006-060 - page 31
CL-1 50RHE R-407C UNIT ST AR T -UP CHECKLIST CUSTOMER: ___________________________ JOB NAME: _______________________________________ MODEL NO.:___________________________ SERIAL NO .:_____________ _______ DA TE: _________ I. PRE-ST ART -UP DOES THE UNIT V OL T AGE CORRESPO ND WITH THE SUPPL Y VOL T AGE A V AILABLE? (Y/N) HA VE THE POWER AND CONTROL ...
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Carrier 50RHE006-060 - page 32
Manufa cturer reser ves the right to discon tinue, or change at any time, specificat ions or designs w ithout not ice and without incurrin g obligations. Catalo g No. 005-0004 2 Printe d in U.S.A. Form 50RH E-C1SI Pg CL-2 2-04 Re places: New Book 1 4 Ta b 5 a 5 a Copyright 2 004 Car rier Cor poration - ------------- ----------- ----------- -------- ...
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