Nortek R8GE Series, Руководство по установке

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TABLE OF CONTENTS
IMPORTANT SAFETY INFORMATION ............................... 3
REQUIREMENTS & CODES ............................................... 4
GENERAL INFORMATION .................................................. 5
Before you install this unit.................................................. 5
Locating the Equipment ..................................................... 5
Heating Load ..................................................................... 5
COMBUSTION AIR & VENTING REQUIREMENTS ........... 6
Venting Requirements ....................................................... 7
CIRCULATING AIR SUPPLY .............................................. 8
Air Ducts ............................................................................ 8
Air Filter Requirements ...................................................... 8
Unconditioned Spaces....................................................... 8
Acoustical Duct Work ..................................................... 8
UNIT INSTALLATION .......................................................... 9
Packaging Removal........................................................... 9
Rigging & Hoisting ............................................................. 9
Clearances to Combustible Materials ................................ 9
Ground Level ..................................................................... 9
Rooftop .............................................................................. 9
Condensate Drain.............................................................. 9
Horizontal to Downflow Conversion................................... 9
Removal of Internal Filter Rack ......................................... 9
Installing Filters in the Filter Rack (3 Phase Only) ............. 9
Removing Filters from Filter Rack ..................................... 10
ELECTRICAL WIRING ........................................................ 11
Pre-Electrical Checklist:..................................................... 11
Line Voltage....................................................................... 11
Unbalanced 3-Phase Supply Voltage ................................ 11
Grounding .......................................................................... 13
Thermostat / Low Voltage Connections............................. 13
Checking Heat Anticipator Settings ................................... 13
Blower Speed .................................................................... 13
Optional Humidistat ........................................................... 13
GAS SUPPLY & PIPING ...................................................... 14
Leak Check........................................................................ 14
High Altitude Conversion ................................................... 15
LP/Propane Gas Conversion ............................................. 15
START UP & ADJUSTMENTS ............................................ 16
Pre-Start Check List .......................................................... 16
Start-Up Procedure............................................................ 16
Air Circulation ................................................................ 16
System Cooling.............................................................. 16
System Heating ............................................................. 16
Verifying & Adjusting Temperature Rise............................ 16
Verifying & Adjusting Firing Rate ....................................... 17
Verify Over-Temperature Limit Control Operation ............. 17
Verifying Burner Operation ................................................ 17
Refrigerant Charging ......................................................... 17
Manifold Pressure Adjustment........................................... 17
OPERATING SEQUENCE ................................................... 18
Heating Mode .................................................................... 18
Cooling Mode .................................................................... 18
Fan Mode .......................................................................... 18
EQUIPMENT MAINTENANCE ............................................. 18
Cleaning of Heat Exchanger.............................................. 19
Cleaning of Burners ........................................................... 19
REPLACEMENT PARTS ..................................................... 20
COMPONENT FUNCTIONS ................................................ 20
TROUBLESHOOTING ......................................................... 20
FIGURES & TABLES ........................................................... 21
Figure 9. R8GE Dimensions .......................................... 21
Table 9. Center of Gravity & Unit Shipping
Weights ........................................................... 21
Airflow Information ............................................................. 22
Table 10. Nominal Airflow Rates and
Temperature Rises (° F) ................................ 22
Gas Information ................................................................. 23
Table 12. Gas Flow Rates ............................................. 23
Table 11. Gas Pipe Capacities ...................................... 23
Figure 10. R8GE Gas Valve Label ................................ 24
Wiring Diagrams ................................................................ 25
Figure 11. Wiring Diagram for 208/230V /
3 Phase / 60 Hz Unit .................................... 25
Figure 12. Wiring Diagram for 460V /
3 Phase / 60 Hz Unit .................................... 26
Charging Charts ................................................................ 27
Figure 13. Charging Chart for 3 Ton Units ..................... 27
Figure 14. Charging Chart for 4 Ton Units ..................... 27
INSTALLATION CHECKLIST .............................................. 28