Nortek Q104SD Series, User Manual

Page: 2 / 20

2
INSTALLER INFORMATION
USER INFORMATION
IMPORTANT SAFETY INFORMATION ....................5
GENERAL INFORMATION .......................................6
Before you install this unit ......................................6
Locating the Heat Pump .........................................6
Field Connections for Electrical Power Supply .......6
Air Ducts .................................................................6
Unconditioned Spaces ........................................6
Acoustical Duct Work ..........................................6
Air Filter Requirements...........................................7
HEAT PUMP INSTALLATION ..................................7
Packaging Removal ................................................7
Rigging & Hoisting ..................................................7
Minimum Clearances ..............................................7
Ground Level ..........................................................7
Rooftop ...................................................................8
Horizontal to Downflow Conversion ........................8
Condensate Drain ..................................................8
ELECTRICAL WIRING .............................................8
Pre-Electrical Checklist:..........................................8
Line Voltage ............................................................8
Grounding...............................................................9
Blower Speed .........................................................9
Safety Protection ....................................................9
Thermostat Connections ........................................9
Ambient Sensor Mounting ......................................10
Defrost Board Operation ........................................10
Forced Defrost When the Following Conditions
are Met ...................................................................10
Optional Outdoor Thermostat .................................10
Optional Electric Heater Kits ..................................10
START UP & ADJUSTMENTS .................................11
Pre-Start Check List ...............................................11
Start-Up Procedure ................................................11
Air Circulation ......................................................11
Short Cycle Protection ........................................11
System Cooling ...................................................11
System Heating - Heat Pump Mode ...................11
System Heating - Electric Heat Mode .................11
REFRIGERANT CHARGING ....................................11
Charging an R-410A Unit in AC Mode ...................12
Charging an R-410A Unit in Heating Mode ............12
Verification of charge in Heat Mode ....................12
HEAT PUMP MAINTENANCE ..................................12
FIGURES & TABLES ................................................13
Figure 7. Q104SD Heat pump Dimensions .........13
Table 2. Center of Gravity & Unit Shipping
Weights ..................................................13
Electrical Information ..............................................14
Figure 8. Typical Heat Pump Thermostat
Connections 208V/230V ......................14
Figure 9. Wiring Diagram for 208/230V Units ......15
Charging Charts - Cooling ......................................16
Figure 10. Charging Chart for 2 Ton Units ...........16
Figure 11. Charging Chart for 2.5 Ton Units ........16
Figure 12. Charging Chart for 3 Ton Units ...........17
Figure 13. Charging Chart for 3.5 Ton Units ........17
Figure 14. Charging Chart for 4 Ton Units ...........18
Figure 15. Charging Chart for 5 Ton Units ...........18
Airflow Data ............................................................19
Table 3. Q104SD Airflow Data .............................19
Table 4. Control Board Status Indicators .............19
INSTALLATION CHECKLIST ...................................20
REPLACEMENT PARTS ..........................................20
IMPORTANT SAFETY INFORMATION ....................3
ABOUT THE HEAT PUMP .......................................3
OPERATING INSTRUCTIONS .................................3
Cooling Operation ..................................................3
Heating Operation ..................................................3
Emergency Heat.....................................................3
Defrost Operation ...................................................3
Operating the Heat Pump for Automatic Cooling
and Heating ............................................................4
Operating the Indoor Blower Continuously .............4
Shutting the Heat Pump Off ...................................4
HEAT PUMP MAINTENANCE ..................................4
Regular Cleaning....................................................4
TROUBLESHOOTING ..............................................4
WARRANTY INFORMATION ...................................4