Page 2 - DO NOT USE ANY PORTION OF; IMPORTANT SAFETY INFORMATION; WARNING
2 WARNING: ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARDFailure to follow safety warnings exactly could result in serious injury or property damage.Improper servicing could result in dangerous operation, serious injury, death or property damage. • Before servicing, disconnect all electrical power to th...
Page 3 - Before You Install the Heat Pump; Figure 1. Clearance Requirements
3 HEAT PUMP INSTALLATION General Information Split system heat pumps are designed only for outdoor rooftop or ground level installations. This unit has been tested for capacity and efficiency in accordance with AHRI Standards and will provide many years of safe and dependable comfort, providing it i...
Page 4 - An electrical disconnect must be located within
4 Connecting Refrigerant Tubing Between the Indoor & Outdoor Unit CAUTION: When servicing, cover or seal openings to minimize the exposure of the refrigerant system to air to prevent accumulation of moisture and other contaminants. After outdoor and indoor unit placement has been deter mined, ro...
Page 5 - Grounding; The unit cabinet must have an uninterrupted or; Thermostat / Low Voltage Connections; Table 2. Thermostat Wire Gauge; Table 1. Copper Wire Size; Thermostat; Air Handler
5 the line-voltage leads to the terminals on the contactor inside the control compartment. • Use only copper wire for the line voltage power supply to this unit as listed in Table 1. Use proper code agency listed conduit and a conduit connector for connecting the supply wires to the unit. Use of rai...
Page 6 - START UP & ADJUSTMENTS; Air Circulation - Indoor Blower; DO NOT alter unit wiring.; Optional Equipment; Transformer Upgrade Kit; HEAT PUMP MAINTENANCE
6 • Do not add additional oil to motors unequipped with oil tubes. The compressor is hermetically sealed at the factory and does not require lubrication. START UP & ADJUSTMENTS Pre-Start Check List √ Verify the unit is level and has sufficient clearances for unobstructed airflow. √ Verify the ou...
Page 7 - Table 3. Control Diagnostic
7 thermostat. NOTE: The blower should also stop unless fan switch is set to the ON position. System Heating (Optional) 1. If heating equipment (furnace, air handler) is provided with the system, lower the ther mostat setpoint temperature to the lowest temperature setting and change the thermostat’s ...
Page 8 - Anti Short Cycle Timer Test; Heating Mode
8 • A high-pressure switch is factory installed and located internally on the compressor discharge line of the outdoor unit. If the discharge pressure rises above 650 psig, the switch will open and de-energize the outdoor unit. The switch will close again after the discharge pressure decreases to 46...
Page 9 - Remove refrigerant when above curve
9 2. Measure the liquid refr igerant temperature (in Fahrenheit) at the service valve. 3. Determine the required liquid refrigerant pressure. Refer to Tables 3-9 (pages 11-13) and Figures 5-11 (pages 13-16). • If the pressure measured in Step 1 is greater than the required liquid refrigerant pressur...
Page 12 - Tw; WIRING DIA; WIRING DIAGRAMS; Figure 8. Wiring Diagram for 2 Ton Standard Models
12 HPS W2 OU T LP S Y OU T Y2 OU T Y2 W2 IN L COI L C Y O R AMB DF 1D F2 RV OUTDOOR FA N MO TO R T1 T2 L1 L2 RIGHT COMPRESSOR HPS LPS RV COIL C R S CCH BLA CK YELLO W RED C H C TO THERMOST AT AMB SENSOR OD SENSOR CAP A CIT OR CONT AC TO R LEFT DEFR OST BO ARD C GRN DL 1L 2 SINGLE PHASE FIELD SUPPL Y...
Page 13 - Figure 9. Wiring Diagram for 3 Ton Standard Models
13 AMB HP S W2 OU T LP S Y OU T Y2 OU T Y2 W2 IN L COIL C Y O R DF1 DF2 RV BLA CK RED OUTDOOR FAN MO TO R T1 T2 L1 L2 COMPRESSOR HPS LPS RV COIL CCH BLA CK RED BLUE ORANGE H F C R S TO THERMOST AT AMB SENSOR OD SENSOR CONT AC TO R DEFR OST BO ARD LFT RT S L H C NC NO COM GRND GR OUNDING SCREW FA N R...
Page 16 - INSTALLATION / PERFORMANCE CHECK LIST; REFRIGERATION SYSTEM; ELECTRICAL SYSTEM; REPLACEMENT PARTS
INSTALLATION / PERFORMANCE CHECK LIST REFRIGERATION SYSTEM Was unit given 24 hr warm up period for crankcase heaters? YES NO Stage-1 Liquid Pressure (high side) ________________________ Stage-1 Suction Pressure (low side) ________________________ ELECTRICAL SYSTEM Electrical connections tight? YES N...