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(RHA**B*D/VHA**B*A)
Heating & Air Conditioning
®
Remote Heat Pump
Comfort. Quality. Trust.
Installation Instructions
Affix this manual, Specification Sheet and Users
Information Manual adjacent to the unit.
Table of Contents
Safety Instructions .............................................................2
General ................................................................................3
SHIPPING AND HANDLING ............................................................. 3
LOCATION AND CLE
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Safety Instructions RECOGNIZE SAFETY SYMBOLS, WORDS, AND LABELS The following symbols and labels are used throughout this manual to indicate immediate or potential safety hazards. It is the owners and installers responsibility to read and comply with all safety information and instructions accompanying these symbols. Failure to heed safety information increases the risk of personal injury, property damage, and/or product damage. WARNING WARNING - Hazards or unsafe practices which COULD resu
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DO NOT locate the unit: General Directly under a vent termination for a gas appliance. This manual covers only the installation of the remote heat Within 3 feet of a clothes drier vent. pump. See the unit specification sheet for information Where the refreezing of defrost water would create regarding accessories. a hazard. Where water may rise into the unit. SHIPPING AND HANDLING Where the noise would prove to be a nuisance to the Units are securely packed in shipping containers ap- c
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sizes used. If mix-matching to a restrictor orifice indoor Safe Refrigerant Handling coil, check the Specification Sheet for the proper orifice size to be used with this outdoor unit. Piston orifices are supplied with the outdoor unit. WARNING To avoid possible explosion, death, or REFRIGERANT VAPOR AND LIQUID LINE ROUTING injury; practice safe handling of All of the vapor line must be insulated. The insulation must refrigerants. include a vapor barrier. The unit liquid line must be outside
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WARNING 6. Close the valve on the nitrogen cylinder and discon- nect it from the gauge manifold. To avoid possible explosion, use only 7. Check for leaks. Apply a soap solution on all connec- returnable (not disposable) service tions and joints. If you see bubbles, you have a leak. cylinders when removing refrigerant from Mark these locations. a system. NOTE: If you use an electronic leak detector to test for leaks, add a trace of R-22 to the system (if permitted by Ensure the cylinder is
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Step 2. Evacuate Lines And Indoor Coil. a. Open the high and low side valves (B & A) on the gauge manifold. NOTE: Only open the valve (E) on the gauge manifold leading to the cylinder, not the valve on the charging cylinder (F). b. Evacuate the system to about 29 inches Hg as mea- sured by the low side (compound) gauge. c. Open the valve (D) to the vacuum gauge. Evacuate until the gauge reads 250 microns or less. d. Close the valve to the vacuum pump (C). Wait five minutes, then check the p
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Electrical Connections MAXIMUM ALLOWABLE WIRE LENGTH IN FEET TO LIMIT VOLTAGE DROP TO 2% MINIMUM CIRCUIT AMPACITY OF OUTDOOR UNIT (MCA) WIRE SIZE 10 12.5 15 17.5 20 22.5 25 27.5 30 32.5 35 37.5 40 (AWG) 14 75 60 50 43 37 N/R N/R N/R N/R N/R N/R N/R N/R 12 118 957968 5953 47 N/R N/R N/R N/R N/R N/R 10 188 150 125 107 9583 756863 5854 N/R N/R 8 301 241 201 172 150 134 120 109 100 93 86 80 75 6 471 376 314 269 235 209 188 171 157 145 134 125 118 N/R = NOT RECOMMENDED Wire ampacity and voltage drop
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IMPORTANT: Hard start components are required when IMPORTANT: If adding refrigerant to a system, add only single-phase reciprocating compressors are used with refrigerant vapor (not liquid) through the suction valve (low indoor coils which have thermal expansion valves. Some side) on the outdoor unit. Any other practice may cause compressor damage. units have hard start components factory installed. See the Specification Sheet for hard start component require- FINAL CHARGE ADJUSTMENT ments.
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9 9 70° F Indoor 75° F Indoor 80° F Indoor 85° F Indoor 90° F Indoor DESIRED SUPERHEAT vs OUTDOOR TEMPERATURE 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 50 60 70 80 90 100 110 120 OUTDOOR TEMPERATURE SUPERHEAT @ O.D. UNIT
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ID COIL WITH EXPANSION VALVE FAN At stabilized cooling conditions and with an outdoor tem- perature of 60°F or higher, the subcooling at the outdoor unit liquid line service valve should be as specified in the specification sheet. Add or remove charge as required. CC ID COIL WITH ORIFICE HI-P For a proper superheat reading, measure the refrigerant pressure and temperature at the outdoor unit vapor line LO-P service valve. The superheat should be within 3°F of that 30 shown on the Desired Superh
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THERMOSTAT* CONNECTIONS TO RH/VH HEAT PUMPS WITH INDOOR BBA/BBC BLOWER COIL Room Thermostat R C/X Y O W2 E G Blower Coil (1)R C (1)Y O W2 E G Remote Unit R C Y O W Approved Thermostats: 1213403, 1213404, 1213410, 1213406 NOTE: 1. When installing accessories, wiring may have to be modified. Follow the instructions in the accessory kits installation instructions. WARNING To avoid personal injury, shock or death, disconnect the electrical power before electrically connecting any equipment or cha
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System Checklist 1 Does the condenser fan blade rotate freely, and is it tight on the shaft? Does the refrigerant tubing flex freely and not touch another tube to cause rub 2 through? 3 Are both indoor and outdoor sections level? 4 Are the units properly supported? 5 Is outdoor section properly located on concrete base or equivalent? Are the refrigerant lines correctly installed according to the relative position of the 6 outdoor and indoor sections? 7 Is the refrigerant tubing properly suppor
