Table of Contents
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INSTALLATION INSTRUCTIONS
(-)BHP
• MODELS FEATURING R-22 REFRIGERANT
• MODELS FEATURING EARTH-FRIENDLY R-410A REFRIGERANT
• MODELS FEATURING ELECTRIC HEAT WITHOUT INDOOR
COOLING COIL
WARNING
LWARNING
These instructions are intended as an aid to qualified licensed
service personnel for proper installation, adjustment and
operation of this unit. Read these instructions thoroughly before
attempting installation or operation. Failure to follow these
instructions may result in improper installation, adjustment,
service or maintenance possibly resulting in fire, electrical
shock, property damage, personal injury or death.
AIR HANDLERS
ISO 9001:2008
92-20521-44-06
SUPERSEDES 92-20521-44-05
r e f r i g e r a n t
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Table of Contents
Related Manuals for Rheem RBHP-17A00NH1
Summary of Contents for Rheem RBHP-17A00NH1
- Page 1 INSTALLATION INSTRUCTIONS AIR HANDLERS (-)BHP • MODELS FEATURING R-22 REFRIGERANT • MODELS FEATURING EARTH-FRIENDLY R-410A REFRIGERANT r e f r i g e r a n t • MODELS FEATURING ELECTRIC HEAT WITHOUT INDOOR COOLING COIL WARNING LWARNING These instructions are intended as an aid to qualified licensed service personnel for proper installation, adjustment and operation of this unit.
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Page 2: Table Of Contents
TABLE OF CONTENTS 1.0 SAFETY INFORMATION ..........3 2.0 GENERAL INFORMATION . -
Page 3: Safety Information
1.0 SAFETY INFORMATION Improper installation, or installation not made in accordance with the Underwriters Laboratory certification or these instructions, can result in unsatisfactory operation and/or dangerous conditions and are not covered by the unit warranty. WARNING Duct leaks can create an unbalanced system and draw pollutants such as dirt, dust, fumes and odors into the home causing property damage. - Page 4 WARNING (SEE WARNINGS IN REGARD TO DUCTWORK) DO NOT INSTALL THIS UNIT IN MANUFACTURED (MOBILE) HOMES. IMPROPER INSTALLATION IS MORE LIKELY IN MANUFACTURED HOUSING DUE TO DUCTWORK MATERIAL, SIZE, LOCATION, AND ARRANGEMENT. INSTALLATIONS IN MANUFACTURED HOUSING CAN CAUSE A FIRE RESULT- ING IN PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
- Page 5 WARNING THE UNIT MUST BE PERMANENTLY GROUNDED. FAILURE TO DO SO CAN RESULT IN ELECTRICAL SHOCK CAUSING PERSONAL INJURY OR DEATH. (SEE SPECIFIC AIRFLOW POSITION FOR ADDITIONAL WARNING WARNINGS) UNITS ARE FOR DUCTED APPLICATIONS ONLY. A MINIMUM OF 36 INCHES OF SUPPLY AIR PLENUM AND DUCTWORK IS REQUIRED.
- Page 6 CAUTION When used on cooling applications, excessive sweating may occur when unit is installed in an unconditioned space. This can result in property damage. • Some building codes require extra cabinet insulation and gasketing when unit is installed in attic applications. •...
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Page 7: General Information
2.0 GENERAL INFORMATION 2.1 IMPORTANT INFORMATION ABOUT EFFICIENCY AND INDOOR AIR QUALITY Central cooling and heating equipment is only as efficient as the duct system that car- ries the cooled or heated air. To maintain efficiency, comfort and good indoor air quality, it is important to have the proper balance between the air being supplied to each room and the air returning to the cooling and heating equipment. -
Page 8: Receiving
NOTICE In compliance with recognized codes, it is recommended that an auxiliary drain pan be installed under all evaporator coils or units containing evapo- rator coils that are located in any area of a structure where damage to the building or building contents may occur as a result of an overflow of the coil drain pan or a stoppage in the primary condensate drain piping. -
Page 9: Model Number Explanation
2.4 UNIT MODEL EXPLANATION FIGURE 2 MODEL NUMBER EXPLANATION (-) B H P — 17 J 00 N H D COIL CODE TRADEBRAND A = NO COIL Coil Refrigerant Cabinet Width CLASSIFICATION Code Type B = BLOWER UNIT R-410 RCHL-24 2GH17 R-410 RCHL-36 1GH21 R-410... -
Page 10: Dimensions And Weights
2.5 DIMENSIONS AND WEIGHTS FIGURE 3 DIMENSIONS AND WEIGHTS NOTE: 24” CLEARANCE REQUIRED IN FRONT OF UNIT FOR FILTER AND COIL MAINTENANCE. DIMENSIONAL DATA UNIT WEIGHT / SHIPPING WEIGHT (LBS.)* UNIT SUPPLY MODEL WIDTH DUCT CABINET SIZE UNIT WITH COIL UNIT WITHOUT COIL “W”... -
Page 11: Unit Configuration
WARNING (SEE WARNINGS IN REGARD TO DUCTWORK) DO NOT INSTALL THIS UNIT IN MANUFACTURED (MOBILE) HOMES. IMPROPER INSTALLATION IS MORE LIKELY IN MANUFACTURED HOUSING DUE TO DUCTWORK MATERIAL, SIZE, LOCATION, AND ARRANGEMENT. INSTALLATIONS IN MANUFACTURED HOUSING CAN CAUSE A FIRE RESULT- ING IN PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. -
Page 12: Vertical Upflow
TO REASSEMBLE: To attach coil casing to blower unit, make sure 3/4” flanges on back and sides of return air opening of blower casing are bent along perforated edge to inside of casing. Clearance holes in flange should match up with drive holes on inside of blower cas- ing. - Page 13 FIGURE 5 ROTATING CIRCUIT BREAKER IMPORTANT: To comply with certification agencies and the National Electric Code, units with circuit breaker(s) on vertical units must have circuit breakers installed so that the breaker switch “on” position and marking is up and, “off” position and marking is down.
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Page 14: Horizontal
WARNING THE FIRST 36 INCHES OF SUPPLY AIR PLENUM AND DUCTWORK MUST BE CONSTRUCTED OF SHEET METAL AS REQUIRED BY NFPA 90B. THE SUPPLY AIR PLENUM OR DUCT MUST HAVE A SOLID SHEET METAL BOTTOM DIRECTLY UNDER THE UNIT WITH NO OPENINGS, REGISTERS OR FLEXIBLE AIR DUCTS LOCATED IN IT. -
Page 15: Electrical Wiring
into horizontal pan as shown with coil endplates fitting into “V” shaped supports in the front and back of the horizontal pan. Mounting tabs on vertical drain pan fit over the air inlet side of the horizontal pan with vertical pan inside horizontal drain pan. Horizontal pan must be under indoor coil when in the installed position. -
Page 16: Control Wiring
• Jumper bar assemblies are connected to the line side lugs of the circuit breakers. Jumper bar is assembled for left (upflow) cabinet power wiring entrance. To convert to right (upflow) power entrance: Remove jumper cover, remove jumper bar from circuit breakers, remove screw on back holding left lug in upper hole to bar, reassemble lug in lower hole and retighten screw. -
Page 17: Blower Motor Electrical Data: "A" Voltage
3.4 BLOWER MOTOR ELECTRICAL DATA: “A” VOLTAGE (115V) MODEL MINIMUM MAXIMUM VOLTAGE CIRCUIT SIZE/ELEC. PHASE HERTZ SPEEDS CIRCUIT CIRCUIT AMPS. DESIGNATION AMPACITY PROTECTOR (-)BHP-17 00NH* 1/3 [249] 300-1100 (-)BHP-21 00NH* 1/2 [373] 300-1100 (-)BHP-24 00NH* 3/4 [559] 300-1100 (-)BHP-25 00NH* 3/4 [559] 300-1100 10.0... - Page 18 FIGURE 8 TYPICAL THERMOSTAT WIRING – STRAIGHT COOLING WITH ELECTRIC HEAT Single-Stage A/C Thermostat G Y C Control Board G/BK A/C Outdoor Unit FIGURE 9 HEAT PUMP WITH ELECTRIC HEAT Heat Pump Thermostat W2 E Air Handler Control Board W/BL Heat Pump G/BK Outdoor Unit...
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Page 19: Ductwork
4.0 DUCTWORK Field ductwork must comply with the National Fire Protection Association NFPA 90A, NFPA 90B and any applicable local ordinance. (SEE SPECIFIC AIRFLOW POSITION FOR ADDITIONAL WARNING WARNINGS) UNITS ARE FOR DUCTED APPLICATIONS ONLY. A MINIMUM OF 36 INCHES OF SUPPLY AIR PLENUM AND DUCTWORK IS REQUIRED. -
Page 20: Refrigerant Connections
5.0 REFRIGERANT CONNECTIONS Keep coil connections sealed until refrigerant connections are to be made. See outdoor unit manual for details on line sizing, tubing installation, evacuation and charging infor- mation. • To install the refrigerant connections, first install the refrigerant block-off plate (locat- ed in the Parts Bag, see Figure 10) around the refrigerant connections. -
Page 21: Condensate Drain Tubing
6.0 CONDENSATE DRAIN TUBING Consult local codes or ordinances for specific requirements that may apply. • The coil door is shipped from the factory with the condensate drain knockout attached. Knockout must be removed and the condensate block-off plate (included in parts bag, see Figure 11) must be installed to access the front drain. -
Page 22: Air Filter
• Make provisions for disconnecting and cleaning of the primary drain line should it become necessary. • Install a 2 in. trap in the primary drain line as close to the unit as possible. Make sure that the top of the trap is below connection to the drain pan to allow complete drainage of pan. -
Page 23: Airflow Operatng Limits
8.1 AIRFLOW OPERATING LIMITS Model/Cabinet Size Cooling BTU/H 18000 24000 30000 36000 42000 48000 60000 60000 Cooling Tons Nominal Heat Pump or Air Conditioning Maximum Heat/Cool CFM 1125 1350 1575 1800 2025 2250 (37.5 CFM/1,000 BTUH) (450 CFM/Ton Nominal) Heat Pump or Air Conditioning Nominal Heat/Cool CFM 1000 1200... - Page 24 8.2 AIRFLOW PERFORMANCE DATA – continued 1438 [678] 1409 [664] 1375 [648] 1341 [632] none 208/240 (205) (217) (229) (252) 1568 [740] 1538 [725] 1507 [711] 1471 [694] 1435 [677] 1403 [662] 1362 [642] 1318 [622] 1287 [607] 1250 [589] none 208/240 (279)
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Page 25: Sequence Of Operation
9.0 SEQUENCE OF OPERATION 9.1 Cooling (cooling only or heat pump) • When the thermostat “calls for cooling,” the circuit between R, G and Y is completed, causing the blower to energize. This circuit also closes the contactor (CC) in the out- door unit starting the compressor (COMP) and outdoor fan motor (OFM). -
Page 26: Emergency Heat (Heating Of Heat Pump)
• For most economical operation, if cold air is not of concern during defrost, the purple wire can be left disconnected. Supplemental heat will only be engergized by a call from second stage room thermostat. 9.6 EMERGENCY HEAT (Heating of Heat Pump) •... -
Page 27: Prestart Checklist
11.0 PRESTART CHECKLIST PRE-START CHECK Is unit properly located, level, secure and service- able? Has auxiliary pan been provided under the unit with separate drain? (Units installed above a finished ceiling). Is condensate line properly sized, run, trapped, pitched and tested? Have the supply duct flanges on the unit been turned up? Is ductwork correctly sized, run, taped and insulat-... -
Page 28: Indoor Coil-Drain Pan-Drain Line
• The filter in the unit is a cleanable type. Clean filter using cold water and allow filter to dry. no oiling or coating of the filter is required or recommended. • New filters to replace those supplied in unit are available from your local distributor. TO ACCESS AIR FILTER: 1. -
Page 29: Electric Heater Replacement
• Mark field power supply wiring (for replacement) attached to terminal block or circuit breaker(s) on blower assembly. Remove wiring from terminal block or circuit break- er(s). • Mark low voltage control wiring (for replacement) where attached to unit control termi- nals on left side of blower housing. -
Page 30: Replacement Parts
• Loosen the bolt holding the wire motor band around the motor shell and pull the motor from the motor mount. Note the motor position in the mount for re-assembly. • To re-assemble, insert the motor shaft through the hub in the blower wheel and orient the motor to original position. -
Page 31: Accessories-Kits-Parts
14.0 ACCESSORIES-KITS-PARTS • Combustible Floor Base RXBB-AA (for standard units) for downflow applications, see section of this manual covering combustible floor base. NOTE: not applicable to high-heat air handlers with open-wire elements. • Jumper Bar Kit 3 Ckt. to 1 Ckt. RXBJ-A31 is used to convert single phase multiple three circuit units to a single supply circuit. - Page 32 FIGURE 13 WIRING DIAGRAM CM 0316...