Reznor R6GF Unit Installation Manual - Manual (Page 2)

2
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
General Information ..................................................7
Vent Termination .......................................................7
CIRCULATING AIR SUPPLY ......................................8
Air Ducts ...................................................................8
Air Filter Requirements .............................................8
Unconditioned Spaces ..............................................9
Acoustical Duct Work ................................................9
UNIT INSTALLATION ..................................................9
Packaging Removal ...................................................9
Rigging & Hoisting .....................................................9
Clearances to Combustible Materials ........................9
Ground Level .............................................................9
Rooftop ......................................................................9
Horizontal to Downflow Conversion .........................10
Condensate Drain ..................................................10
ELECTRICAL WIRING ...............................................10
Pre - Electrical Checklist .........................................10
Line Voltage .............................................................11
Thermostat / Low Voltage Connections ...................11
Heat / Cool Thermostat ........................................11
Checking Heat Anticipator Settings ......................12
Heating Configurations ............................................12
Configuring the Variable Speed Blower ..................12
Selecting Cooling Airflow .....................................12
Selecting Gas Heating Airflow ..............................13
Optional Humidistat .................................................13
Optional Comfort Alert
TM Diagnostics Module .........13
24VAC Power Wiring ............................................13
Thermostat Demand Wiring .................................13
L Terminal Wiring .................................................13
DC SOL Connection ............................................13
Interpreting the Diagnostic LED’s .........................14
LED Description ...................................................14
Installation Verification .........................................14
Troubleshooting the Installation ............................14
Resetting Alert Codes ..........................................14
Grounding................................................................14
GAS SUPPLY & PIPING ............................................15
Leak Check .............................................................16
High Altitude Conversion .........................................16
LP/Propane Gas Conversion ...................................16
STARTUP & ADJUSTMENTS ...................................17
Pre - Start Checklist ................................................17
Start-up Procedure ..................................................17
Air Circulation .......................................................17
System Cooling ....................................................17
System Heating ....................................................17
Verifying & Adjusting Temperature Rise ..................17
Verifying & Adjusting Firing Rate .............................18
Verifying Over-Temperature Limit
Control Operation ....................................................18
Verifying Burner Operation ......................................18
Manifold Pressure Adjustment ................................19
Refrigerant Charging ...............................................19
Charging R-410A Unit in AC Mode ......................19
OPERATING SEQUENCE .........................................19
Heating Mode ..........................................................19
Cooling Mode ..........................................................20
Fan Mode ................................................................20
EQUIPMENT MAINTENANCE ...................................21
Cleaning of Heat Exchanger ...................................21
Cleaning of Burners ................................................22
REPLACEMENT PARTS ............................................22
COMPONENT FUNCTIONS ......................................23
TROUbLESHOOTING ...............................................23
FIGURES & TAbLES .................................................24
Figure 9. Unit Dimensions ....................................24
Table 8. Center of Gravity & Shipping Weights .....24
Airflow Information ...................................................25
Table 9. Nominal Airflow Rates & Temp Rises .....25
Table 10. Airflow Settings for Cooling ...................25
Table 11. Airflow Settings for Heating ...................25
Gas Information .......................................................26
Table 12. Gas Pipe Capacities .............................26
Table 13. Gas Flow Rates ....................................26
Figure 10. Gas Valve Label ..................................27
Electrical Information ...............................................28
Figure 11A. T-Stat Connection for Two-Stage
Heating / Two-Stage Cooling ...........28
Figure 11B. Two-Stage, Hot Surface Ignition &
Blower Control Board .......................28
Figure 12. Wiring Diagram for Two-Stage
Heating / Two-Stage Cooling ..............29
Figure 13. Wiring Diagram for Two-Stage Units
w/ Optional Comfort Alert ....................30
Comfort Alert Troubleshooting Charts .....................31
Table 14. LED Diagnostics ...................................31
Table 15. Module Wiring Troubleshooting .............33
Refrigerant Charging Charts ...................................33
Figure 14. Charging Chart for 2 Ton Units ............34
Figure 15. Charging Chart for 3 Ton Units ............34
Figure 16. Charging Chart for 4 Ton Units ............35
Figure 17. Charging Chart for 5 Ton Units ............35
INSTALLATION / PERFORMANCE CHECKLIST .....36
TAbLE OF CONTENTS