2
IMPORTANT SAFETY INFORMATION .....................3
REQUIREMENTS & CODES .....................................4
GENERAL INFORMATION ........................................4
HEAT PUMP INSTALLATION ....................................5
Installing Return & Supply Air Collars .....................5
Locating & Installing the Return Air Assembly ........5
Unconditioned Spaces .........................................5
ELECTRICAL CONNECTIONS .................................7
Pre-Electrical Checklist:...........................................7
Line Voltage .............................................................7
Grounding................................................................7
Overcurrent Protection ............................................7
Blower Speed ..........................................................8
2-Speed Outdoor Fan Motor ...................................8
(Select Models) .......................................................8
Ambient Sensor Mounting .......................................8
Demand Defrost Control..........................................9
Thermostat Connections .........................................9
Electric Heat Package (optional) .............................10
STARTUP & ADJUSTMENTS ...................................11
Adjustment of Refrigerant Charge ...........................11
Charging the Unit in AC Mode .................................11
Charging the Unit in Heating Mode .........................12
Forced Defrost Mode (Field Test) ............................12
Anti Short Cycle Timer Test .....................................12
COMPONENT FUNCTIONS ......................................12
UNIT MAINTENANCE ................................................12
FIGURES & TABLES .................................................13
Refrigerant Charging Charts - Cooling Mode ..........14
Figure 9. Charging Chart for 2 Ton Units ..............14
Figure 10. Charging Chart for 3 Ton Units ............14
Figure 11. Charging Chart for 4 Ton Units ............15
Figure 12. Charging Chart for 5 Ton Units ............15
Wiring Diagrams ......................................................16
Figure 13. Wiring Diagram - 2 & 3 Ton Units ........16
Figure 14. Wiring Diagram - 4 & 5 Ton Units ........17