Carrier RHR - Manuals

8 Fig. 3 — 50RHS Dimensional Data NOTES:1. Condensate is 3 / 4 -in. FPT copper. 2. Horizontal unit shipped with filter bracket only. This bracket should be removed for return duct connection.3. Hanger kit is factory installed. Isolation grommets are provided.4. Right and left orientation is determin...

9 Fig. 4 — Typical Installation — 50RHC,RHR,RHS Units UNIT HANGER ISOLATION DETAIL

10 Fig. 5 — 50RVC Dimensional Data NOTES:1. Condensate is 3 / 4 -in. (19.1 mm) FPT. 2. Filter bracket extending from unit 2.5-in. (6.4 cm). This bracket should be removed when connecting return duct. 3. Discharge flange field installed. 50RVC UNITS OVERALL CABINET WATER CONNECTIONS ELECTRICAL KNOCKO...

11 Fig. 6 — 50RVR Dimensional Data NOTES:1. Condensate is 3 / 4 -in. FPT and is switchable from side to front. 2. Ver tical unit shipped with filter bracket only extending from unit 2.5 inches. This bracket should be removed when connecting return duct.3. Discharge flange field installed.4. Right an...

12 Fig. 7 — 50RVS Dimensional Data NOTES:1. Condensate is 3 / 4 -in. FPT and is switchable from side to front. 2. Ver tical unit shipped with filter bracket only extending from unit 2.5 inches. This bracket should be removed when connecting return duct.3. Discharge flange field installed.4. Right an...

13 Fig. 8 — 50RDS Dimensional Data LEGEND HWG — Hot Water Generator NOTES:1. Condensate is 3 / 4 -in. PVC FPT and is switchable from side to front. 2. Vertical unit shipped with filter bracket only extending from unit 2.5 inch. This bracket should be removed when connecting return duct. 50RDS UNITS ...

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

15 Step 4 — Mounting the Unit HORIZONTAL UNITS (50RHC,RHR,RHS) — Horizontal units 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...

16 Step 6 — Condensate Drain HORIZONTAL UNITS (50RHC,RHR,RHS) — Slope the 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 inte...

17 Water Supply and Quantity — Check water supply. Water supply should be plentiful and of good quality. See Table 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 Water Quality Guidelines ta...

18 Step 8 — Field Power Supply 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 ...

19 *Optional wiring. AL — Alarm Relay Contacts BM — Blower Motor BMC — Blower Motor Capacitor BR — Blower Relay CB — Circuit Breaker CC — Compressor Contactor CO — Sensor, Condensate Overflow COMPR — Compressor FP1 — Sensor, Water Coil Freeze Protection FP2 — Sensor, Air Coil Freeze Protection HP — ...

20 *Optional wiring. AL — Alarm Relay Contacts BM — Blower Motor BMC — Blower Motor Capacitor BR — Blower Relay CB — Circuit Breaker CC — Compressor Contactor CO — Sensor, Condensate Overflow COMPR — Compressor FP1 — Sensor, Water Coil Freeze Protection FP2 — Sensor, Air Coil Freeze Protection HP — ...

21 Wire Nut Relay Contacts - N.C. Relay Contacts - N.O. Low Pressure Switch High Pressure Switch Splice Cap Circuit Breaker Fig. 21 — Typical Aquazone™ Complete C and LON Controller Wiring NOTES: 1. Compressor and blower motor thermally protected internally.2. All wiring to the unit must comply with...

22 LEGEND Wire Nut Relay Contacts - N.C. Relay Contacts - N.O. Low Pressure Switch High Pressure Switch Splice Cap Circuit Breaker Fig. 22 — Typical Aquazone™ Deluxe D and LON Controller Wiring NOTES: 1. Compressor and blower motor thermally protected internally.2. All wiring to the unit must comply...

23 AQUAZONE CONTROL (C Control Shown) Fig. 25 — Typical Aquazone Control Board Jumper Locations a50-6268tf.tif NOTE: Low voltage connector may be removed for easy installation. Fig. 24 — Low Voltage Field Wiring a50-6267tf.tif Fig. 23 — 50RHC,RVC,RHR,RVR,RHS,RVS,RDS Typical Single-Phase Line Voltage...

24 Table 5 — 50RHC,RVC Electrical Data LEGEND *Size 006 available in 50RHC unit only. †Size 041 available in 50RVC unit only.NOTES: 1. HACR circuit breaker in U.S.A. only.2. All fuses Class RK-5. 50RHC,RVC UNITS VOLTS-PHASE 60 Hz VOLTAGE MIN/MAX COMPRESSOR FAN MOTOR FLA TOTAL UNIT FLA MIN CIRCUIT AM...

25 Table 6 — 50RHR,RVR Electrical Data LEGEND *Size 006 is available in 50RHR units only. 50RHR,RVR UNITS VOLTS-PHASE 60 Hz VOLTAGE MIN/MAX COMPRESSOR FAN MOTOR FLA TOTAL UNIT FLA MIN CIRCUIT AMP MAX FUSE/HACR 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....

26 Table 7 — 50RDS, RHS, RVS Electrical Data LEGEND PRE-START-UP System Checkout — When the installation is complete, follow the system checkout procedure outlined below before starting up the system. Be sure: 1. Voltage is within the utilization range specifications of the unit compressor and fan m...

28 Table 9 — 50RHC,RVC Blower Performance *Size 006 is available in 50RHC unit only. †Size 041 is available in 50RVC unit only. NOTES: 1. Gray areas denote ESP (external static pressure) where operation is not recommended. 2. Units factory shipped on medium speed. Other speeds require field selectio...

30 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. C Control Jumper Settings (See Fig. 19) WATER COIL FREEZE PROTECTION (FP1) LIMIT SETTING — Select jumper 3, (JW3-FP1 Low Temp) to c...

32 during the reheat mode of operation. The hydronic coil is uti- lized during the reheat mode of operation 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...

33 Operating Limits ENVIRONMENT — This equipment is designed for indoor installation ONLY. Extreme variations in temperature, hu- midity and corrosive water or air will adversely affect the unit performance, reliability and service life.POWER SUPPLY — A voltage variation of ± 10% of nameplate utiliz...

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. Turn thermostat to lowest setting and set thermostat switch to HEAT position. 2. Slowly turn the thermostat to a h...

35 Table 22 — 50RHR,RVR Coaxial Water Pressure Drop *Size 006 available in 50RHR unit only. Table 23 — 50RHS,RVS,RDS Coaxial Water Pressure Drop Table 24 — 50RHC,RVC Coaxial Water Pressure Drop *Size 006 available in 50RHC unit only. †Size 041 available in 50RVC unit only. Antifreeze — In areas wher...

36 Table 25 — Approximate Fluid Volume (gal.) per 100 Ft of Pipe LEGEND NOTE: Volume of heat exchanger is approximately 1.0 gallon. Table 26 — Antifreeze Percentages by Volume Cooling Tower/Boiler Systems — These systems typ- ically use a common loop temperature maintained at 60 to 90 F. Carrier rec...

37 compressor application, all compressor relays and related func- tions will track with their associated DIP switch 2 on S1.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 immedia...

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 Motors — All units have lubricated fan motors. Fan motors should never be lubricated unless obvious, dry opera- tion is suspected. Periodic maintenance oi...

40 Refrigerant Charging NOTE: Do not vent or depressurize unit refrigerant to atmosphere. Remove and reclaim refrigerant following accepted practices. Air Coil Fan Motor Removal Disconnect motor power wires from motor terminals before motor is removed from unit. 1. Shut off unit main power supply.2....

41 Table 30 — Troubleshooting LEGEND RV — Reversing Valve FAULT HEATING COOLING POSSIBLE CAUSE SOLUTION Main Power Problems X X Green Status LED Off Check line voltage circuit breaker and disconnect. Check for line voltage between L1 and L2 on the contactor. Check for 24 vac between R and C on contr...

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500007-01 Printed in U.S.A. Form 50R-5SI Pg CL-2 6-07 Replaces: 50R-4SI Book 1 4 Tab 5a 5a Copyright 2007 Carrier Corporation - - - - - ...