Carrier 50RHC 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 . 04-5350000 7-01 Printed in U. S.A. Fo rm 50R-5SI Pg 1 6-07 Replaces: 50R-4SI Book 1 4 Ta b 5 a 5 a Installation, Star t-Up , and Ser vice Instr uctions CONTENTS Page SAFETY CONSIDERA TION[...]

2 Follow all safety codes. W e ar 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 the Na tional Electrical Code (NEC) for special installation requirements. Under[...]

3 STO R AG E — If the equipment is not needed immediately at the jobsite, it should be left in its shipping carton and stored in a clean, dry area of the building or in a warehouse. Units must be stored in an upright position at all times. If carton stacking is necessary , stack units a maximu m of 3 high. Do not remove any equipment from its shi[...]

4 Table 1 — Physical Data — Aquazone™ 50RHC,RVC00 6-060 Units LEGEND *Size 006 av ailable in 50R HC unit only . †Size 0 41 av ailable in 50R VC unit only . NO TES: 1. All units have grommet compressor mo untings, and 1 / 2 and 3 / 4 -i n. electr ical knockouts. 2. All sizes available as high-static uni ts. UNIT 50RHC,R VC 006* 009 012 018 0[...]

5 Table 2 — Physical Data — Aquazone™ 50RHR,RVR006 -060 Units LEGEND *Size 006 av ailable in 50R HR unit only . NO TES: 1. All units hav e spring compress or mountings , TXV (thermostatic expansion valv e) expansion devices, and 1 / 2 and 3 / 4 -in. electr ical knockouts. 2. Size 048 availab le as high-s tatic unit. Table 3 — Physical Data [...]

6 Fig. 1 — 50RHC Dimensional Data NO TES: 1. Condensate is 3 / 4 -in. FPT copper. 2. Horiz ontal unit shi pped with filte r brac ket o nly . This brack et should be remov ed for return duct conne ction. 3. Hanger kit is factory installed. 50RHC UNITS O VERALL CABINET W A T ER CONNECTIONS ELECTRICAL KNOCKOUTS (in.) DISCHARGE CONNECTION Duct Flange[...]

7 Fig. 2 — 50 RHR Dimensional Data Fr on t K M Blower O u tlet M L Right Ret u rn Fro n t Left Di s ch a rge 3 C S P B a ck Di s ch a rge Conden sa te 3 /4 “ FTP 3 .25 F F ront-View B S P Air Coil C S R B A S P Q P Fr on t K M Blower O u tlet J L Fr on t B S P LEFT RETURN RIGHT RETURN Air Coil C S P Fr on t 1.1 C S Q P R B Unit H a nger Det a i[...]

8 Fig. 3 — 50RHS Dimensional Data NO TES: 1. Condensate is 3 / 4 -in. FPT copper. 2. Horiz ontal unit shi pped with filte r brac ket o nly . This brack et should be remov ed for return duct conne ction. 3. Hanger kit is factor y installe d. Isolation grom mets are provided. 4. Right and le ft orientation is determined b y looking at w ater connec[...]

9 Fig. 4 — T ypic al Installation — 50RHC,RHR,RH S Units UNIT HANGER ISOLA TION DET AIL[...]

10 Fig. 5 — 50R VC Dimensional Data NOTES: 1. Condens ate is 3 / 4 -in. (19.1 mm) FPT . 2. Filter bra ck et e xtending fr om unit 2.5-i n. (6.4 cm). Th is brac ket sh ould be rem ov ed when con necting retu rn duct. 3. Discharge flang e field instal led. 50RVC UNITS O VERALL CABINET W A TER CONNECTIONS ELECTRICAL KNOCKOUTS (in.) DISCHARGE CONNECT[...]

11 Fig. 6 — 50R VR Dimensional Data NOTES: 1. Condensate is 3 / 4 -in. FPT and is s witchable from side to front. 2. V er tical unit ship ped with fil ter brac ket only e xtending f rom unit 2.5 inches. Th is brac ket sh ould be rem ov ed when con necting return duct. 3. Discharge fl ange field ins talled. 4. Right and left or ientati on is deter[...]

12 Fig. 7 — 50R VS Dimensional Data NOTES: 1. Condensate is 3 / 4 -in. FPT and is s witchable from side to front. 2. V er tical unit ship ped with fil ter brac ket only e xtending f rom unit 2.5 inches. Th is brac ket sh ould be rem ov ed when con necting return duct. 3. Discharge fl ange field ins talled. 4. Right and left or ientati on is deter[...]

13 Fig. 8 — 50RDS Dimensional Data LEGEND HWG — Hot W ater Generator NOTES: 1. Condensate is 3 / 4 -in. PVC FPT and is swit chable from side to fr ont. 2. V ertical unit shipped with filter brac ket only e xtending from unit 2.5 inch. This brack et should be removed when connecting r etu rn duct. 50RDS UNITS OVERALL CABINET W A TER CONNECTIONS [...]

14 Step 3 — Unit Location — The following guidelines should be considered when choosing a location for a WSHP: • Units are for indoor use onl y . • Locate in areas where ambient temperatures are between 40 F and 100 F and relative humidity is no greater than 75%. • Provide suff icient space for water , electrical and duct connections. •[...]

15 Step 4 — Mounting the Unit HORIZONT AL UNITS (50RHC,RHR ,RHS) — H or i z on t a l u ni t s should be mounted using the factory-installed hangers. Proper attachment of hanging rods to building structure is critical for safety . See Fig. 4 and 13. Rod attachments must be able to sup- port the weight of the unit. See T ables 1-3 for unit operat[...]

16 Step 6 — Condensate Drain HORIZONT AL UNITS (50RHC,RHR,RHS) — S l op e t he unit toward the drain at a 1 / 4 in. drop at drain end. See Fig. 15. If it is not possible to meet the required pitch, install a conden- sate pump at the unit to pump condensate to building drain. Horizontal units are not internally trapped, therefore an ex- ternal t[...]

17 W ater Supply and Quantity — Check water supply . W ater supply should be plentiful and of good quality . See T able 4 for water quality guidelines. In all applications, the quality of the water circulated through the heat exchanger must fall within the ranges listed in the W ater Quality Guidelines table. Consult a local water tr eat- ment fi[...]

18 Step 8 — Field P ower Suppl y Wiring All field installed wiring, including the electrical ground, MUST comply with the National Electrical Code (NEC) as well as applicable local codes. In addition, all field wiring must conform to the Class II temperature limitations described in the NEC. Refer to unit wiring diagrams Fig. 19-22 for a schemati[...]

19 *Optional wiring. AL — Alarm Relay Contacts BM — Blower Motor BMC — Blower Motor Capacitor BR — Blower Rela y CB — Circuit Breaker CC — Compressor Contactor CO — Sensor , Cond ensate Overflow COMPR — Compressor FP1 — Sensor , Water Coil F reeze Protection FP2 — Sensor , Air Coil Freeze Protection HP — High-Pressu re Switch [...]

20 *Optional wiring. AL — Alarm Relay Contacts BM — Blower Motor BMC — Blower Motor Capacitor BR — Blo wer Relay CB — Circuit Break er CC — Compressor Contactor CO — Sensor , Condensate Overflow COMPR — Compressor FP1 — Sensor , Water Coil F reeze Protection FP2 — Sensor , Air Coil Freez e Protection HP — High-Pressure Switch [...]

21 Wire Nut Relay Contacts - N.C . Relay Contacts - N.O . Low Pressure Switch High Pressure Switch Splice Cap Circuit Breaker Fig. 21 — T ypical Aquazone™ Complete C and LON Controller Wiring NO TES: 1. Compressor and blo wer motor thermally prote cted internally . 2. All wiring to the unit must comply with NEC and local codes. 3. T ransf ormer[...]

22 LEGEND Wire Nut Relay Contacts - N.C . Relay Contacts - N.O . Low Pressure Switch High Pressure Switch Splice Cap Circuit Breaker Fig. 22 — T ypical Aquazone™ Deluxe D and LON Contr oller Wiring NO T ES: 1. Compressor and blow er motor thermally protected inter nally . 2. All wiring to the unit must comply with NEC and local codes. 3. T rans[...]

23 AQ U AZONE CONTROL (C Control Shown) Fig. 25 — T ypical Aquazone Contro l Board Jumpe r Locations a50-6268tf.tif NO TE: Low voltage connector ma y be remov ed for easy installation. Fig. 24 — Low V oltage Field Wiring a50-6267tf.tif Fig. 23 — 50RHC,RVC,RHR,RVR, RHS,RVS,R DS Typical Single-Phase Line Voltage Power Connection a50-8162 T YPIC[...]

24 Table 5 — 50RHC,RVC Electrical Data LEGEND *Size 006 av ailable in 50RHC unit only . †Size 041 a vailab le in 50R VC unit only . NO TES: 1. HA CR circuit breaker in U .S.A. only . 2. All fuses Class RK- 5. 50RHC,R VC UNITS V OL TS-PHASE 60 Hz VO LT AG E MIN/MAX COMPRESSOR F AN MO T OR FLA TOT A L UNIT FLA MIN CIRCUIT AMP MAX FUSE/HA CR RLA L[...]

25 Table 6 — 50RHR,RVR Electrical Data LEGEND *Size 006 is av ailable in 50RHR units only . 50RHR,R VR UNITS V OL TS-PHASE 60 Hz VO L T AG E MIN/MAX COMPRESSOR F AN MO TOR FLA TOT A L UNIT FLA MIN CIRCUIT AMP MAX FUSE/HA CR RLA LRA 006* 208/230-1 197/254 2.9 17.7 0.40 3.3 4.0 15 265-1 239/292 2.5 15.0 0 .35 2.8 3.5 15 009 208/230-1 197/254 3.9 22[...]

26 Table 7 — 50RDS, RHS, R VS Electrical Data LEGEND PRE-ST ART -UP System Chec kout — When the installation is complete, follow the system checkout procedure outlined below before starting up the system. Be sure: 1. V oltage is within the utilizati on range specifications of the unit compressor and fan moto r and voltage is balanced for 3 phas[...]

27 AI R CO IL — T o obtain maximum performance, clean the air coil before starting the unit. A ten percent solution of dish- washer detergent and water is recommended for both sides of the coil. Rinse thoroughly with water . PSC (P ermanent Split Capacitor) Blo w er Speed Selection — All water source heat pumps are factory set to deliver rated [...]

28 Table 9 — 50RHC,RVC Bl ower Performance *Size 006 is a vaila ble in 50RHC unit only . †Size 041 is a vailab le in 50RVC unit only . NO TES: 1. Gra y areas denote ESP (e xternal static pressure) where operation is not recommended. 2. Units f actor y shipped on medium speed. Ot her speeds require field selection. 3. All airflo w is rated at lo[...]

29 Table 11 — 5 0R VC Blower P erf ormance with W et Coil Table 12 — 50RHS,RVS,RDS Blower Performance LEGEND — — Not Recommended NO TES: 1. Includes allowance f o r wet coil and clean f actory-installed filter. 2. Units factory shipped on medium speed (015 on Low). Other speeds require fie ld selection. 3. All airflow is rated on 208 v oper[...]

30 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. C Contr ol Jumper Settin gs (See Fig. 19) W A TER COIL FREEZE PROTECTION (FP1) LIMIT SETTING — Se le ct jum pe r 3, (J W3- FP 1 Lo w T em p) to choose FP1 limit of 10 F or 30 F .[...]

31 boilerless operation mode, only the compressor is used for heating when FP1 is above th e boilerless changeover tempera- ture set by switch 8 below . Select ON for normal operation or select OFF for boilerless operation. Boilerless Changeover T emperature — Switch 8 on S1 pro- vides selection of boilerless ch angeover temperature set point. Se[...]

32 during the reheat mode of operation. The hydronic coil is uti- lized during the reheat mode of ope ration to reheat the air to the set point of the proportional controller . Condenser water is di- verted by the motorized valve and pumped through the hydron- ic coil by the loop pump in proportion to the control set point. The amount of reheating [...]

33 Operating Limits ENVIRONMENT — This equipment is design ed for indoor installation ONL Y . Extreme va ri ations in temperature, hu- midity and corrosive water or air will adversely affect the unit performance, reliability and service life. POWER SUPPL Y — A voltage variation of ± 10% of nameplate utilization voltage is acceptable. UNIT ST A[...]

34 Unit Start-Up Heating Mode NOTE: Operate the unit in heating cycle after checking the cooling cycle. Allow 5 minutes between tests for the pressure or reversing valve to equalize. 1. T urn thermostat to lowest setting and set thermostat switch to HEA T position. 2. Slowly turn the thermostat to a higher temperature until the compressor activates[...]

35 Table 22 — 50RHR,RVR Coaxial Water Press ure Drop *Size 006 a va ilable in 50RHR unit only . Table 23 — 50RHS,RVS,RDS Coaxial Water Press ure Drop Table 24 — 5 0RHC,RVC Coaxial Water Pressure Drop *Size 006 av ailable in 50RHC unit on ly . †Size 041 a v ailable in 50R VC unit only . Antifreeze — In areas where entering loop temperature[...]

36 Table 25 — Approximate Fluid Volume (gal.) per 100 Ft of Pipe LEGEND NO TE: V olume of heat exchanger is approxima tely 1.0 gallon. Table 26 — Antifr eeze Percentages by Volume Cooling T ower/Boiler Systems — These systems typ- ically use a common loop temperature maintained at 60 to 90 F . Carrier recommends using a clos ed circuit evapor[...]

37 compressor application, all comp ressor relays and related func- tions will track with their associated DIP switch 2 on S1. NIGHT LOW LIMIT (NLL) ST AGED HEA TING — I n 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 St age 1 mode. W ith[...]

38 Aquazone™ Deluxe D Contr ol LED Indica- tors — There are 3 LED indicators on the Deluxe D Control: ST A T U S L ED — Status LED indicates the current status or mode of the Deluxe D control. The Status LED light is green. TE S T LE D — T est LED will be activated any time the De- luxe D control is in test mode. The T est LED light is yell[...]

39 Compressor — Conduct annual amperage checks to in- sure that amp draw is no more than 10% greater than indicated on the serial plate data. Fan M ot o rs — All units have lubricated fan motors. Fan motors should never be lubric ated unless obvious, dry opera- tion is suspected. Periodic maintenance oili ng is NOT recom- mended as it will resu[...]

40 Refrigeran t Charging NOTE: Do not vent or depressurize unit refrigerant to atmosphere. Remove and reclaim refrigerant following accepted practices. Air Coil Fan Motor Remo val Disconnect motor power wires from motor terminals before motor is removed from unit. 1. Shut off unit main power supp ly . 2. Loosen bolts on mounting bracket so that fan[...]

41 Table 30 — Troubleshooting LEGEND RV — R ever s in g V a l ve F AUL T HEA TING COOLING POSSIBLE CA USE SOLUTION Main Power Problems X X Green Stat us LED Off Check line voltage circ uit breaker and discon nect. Check for line v oltage bet ween L1 and L2 on the co ntactor. Chec k f or 24 v ac between R and C on controller . Check primar y/se [...]

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 . 04-53500007-01 Pr inted in U .S.A. Form 50R-5SI Pg 42 6-07 Replaces: 50R-4SI Book 1 4 Ta b 5 a 5 a Copy right 2007 Carrier Cor poration Table 30 — Troubleshooting ( cont) LEGEND RV — [...]

CL-1 50RHC,R VC,RHR,RHS,R VR,R VS,RDS ST ART -UP CHECKLIST CUSTOMER: ___________________________ JOB NAME: _______________________________________ MODEL NO.:___________________________ SERIAL 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[...]

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 . 04-53500007-01 Pr inted in U .S.A. Form 50R-5SI Pg CL-2 6-07 Replaces: 50R-4SI Book 1 4 Ta b 5 a 5 a Copy right 2007 Carrier Cor poration - - - - - - - - - - - - - - - - - - - - - - - - -[...]