3
SAFETY IINFORMATION ............................................6
REQUIREMENTS & CODES .......................................7
GENERAL INFORMATION ..........................................8
Pre - Installation Check .............................................8
Locating the Heat Pump Unit ....................................8
Field Connections for Electrical Power
Supply .......................................................................8
Heating Load ............................................................8
Combustion Air Requirements .................................8
Venting Requirements ..............................................9
Circulating Air Supply .............................................11
Air Ducts .............................................................11
Air Filter Requirements ........................................ 11
Unconditioned Spaces .........................................11
Acoustical Duct Work ...........................................12
EQUIPMENT INSTALLATION ...................................12
Packaging Removal ................................................. 12
Rigging and Hoisting ...............................................12
Clearances to Combustibles....................................12
Ground Level ...........................................................12
Rooftop .................................................................... 12
Condensate Drain ..................................................12
Horizontal to Downflow Conversion .........................12
ELECTRICAL WIRING ............................................... 13
Pre - Electrical Checklist .........................................13
Line Voltage ............................................................. 13
Grounding................................................................14
Thermostat / Low Voltage Connections ................... 14
Heating Configurations ............................................ 15
Two - Stage Heating configuration .......................15
High Fire Configuration ........................................15
Timed Staging Configuration................................15
Two - Stage Cooling Configuration .......................15
Checking Heat Anticipator Settings ...................... 15
Configuring the Variable Speed Blower ..................15
Selecting Basic Cool/Heat Pump Airflow .............15
Selecting Gas Heating Airflow ..............................15
Delay Profile ......................................................... 16
Demand Defrost Control..........................................16
Ambient Sensor Mounting .......................................16
Optional Humidistat .................................................16
Optional Comfort Alert
TM
Diagnostics Module .........16
24VAC Power Wiring ............................................17
Thermostat Demand Wiring .................................17
L Terminal Wiring .................................................17
DC SOL Connection ............................................18
Interpreting the Diagnostic LED’s ......................... 18
LED Description ...................................................18
Installation Verification .........................................18
Troubleshooting the Installation ............................18
Optional Outdoor Thermostat .................................. 18
GAS SUPPLY & PIPING ............................................19
Leak Check .............................................................19
High Altitude Conversion .........................................19
Lp/Propane Gas Conversion ...................................20
STARTUP & ADJUSTMENTS ...................................20
Pre - Start Checklist ................................................20
Start-up Procedure .................................................. 20
Air Circulation ....................................................... 21
Short Cycle Protection .........................................21
System Cooling ....................................................21
Secondary Heating ..............................................21
Verifying & Adjusting Temperature Rise ..................21
Verifying & Adjusting Firing Rate ............................. 21
Manifold Pressure Adjustment ................................22
Verifying Burner Operation ......................................22
Verifying Over-Temperature Limit
Control Operation ....................................................22
Refrigerant Charging ...............................................22
Charging an R-410A Unit in AC Mode ....................23
Charging an R-410A Unit in Heating Mode .............23
REPLACEMENT PARTS ............................................23
OPERATING SEQUENCE .........................................23
2 - Stage Heating Mode ..........................................23
Gas Heating / Emergency Heat Mode.....................23
2 - Stage Cooling Mode...........................................24
Fan Mode ................................................................24
EQUIPMENT MAINTENANCE ................................... 24
Cleaning of Heat Exchanger ...................................25
Cleaning of Burners ................................................25
TROUBLESHOOTING ...............................................26
COMPONENT FUNCTIONS ......................................26
FIGURES & TABLES .................................................27
Figure 11. DF6SF Heat Pump Dimensions ..........27
Table 9. Center of Gravity & Shipping Weights .....27
Airflow Information ...................................................28
Table 10. Nominal Airflow Rates & Temp Rises ...28
Table 11. Airflow Settings for Cooling ................... 28
Table 12. Airflow Settings for Heating ...................28
Gas Information ....................................................... 29
Table 13. Gas Pipe Capacities .............................29
Table 14. Gas Flow Rates ....................................29
Figure 12. DF6SF Gas Valve Label ......................30
Electrical Information ............................................... 31
Figure 13. Wiring Diagram for 2 & 5 Ton Units .....31
Figure 14. Wiring Diagram for 2 & 5 Ton Units
w/ Optional Comfort Alert ....................32
Figure 15. Wiring Diagram for 3 & 4 Ton Units ..... 33
Figure 16. Wiring Diagram for 3 & 4 Ton Units
w/ Optional Comfort Alert ....................34
Cooling Charging Charts ......................................... 35
Figure 17. Charging Chart for 2 Ton Units ............ 35
Figure 18. Charging Chart for 3 Ton Units ............ 35
Figure 19. Charging Chart for 4 Ton Units ............ 36
Figure 20. Charging Chart for 5 Ton Units ............ 36
Comfort Alert Troubleshooting Charts .....................37
Table 15. LED Diagnostics ...................................37
Table 16. Module Wiring Troubleshooting .............39
FRENCH TRANSLATIONS ........................................40
INSTALLER INFORMATION