Reznor R6GI Unit Installation Manual - Manual (Page 2)

2
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
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 ...........................................11
Grounding................................................................11
Line Voltage .............................................................11
Thermostat / Low Voltage Connections ...................11
Heat / Cool Thermostat ........................................12
Checking Heat Anticipator Settings ......................12
Cooling Configurations ............................................12
Heating Configurations ............................................12
Configuring the Variable Speed Blower ...................13
Selecting Cooling Airflow .........................................13
Selecting Heating Airflow ........................................13
Operation .............................................................13
GAS SUPPLY & PIPING ............................................14
Leak Check .............................................................14
High Altitude Conversion .........................................15
LP/Propane Gas Conversion ...................................15
START UP & ADJUSTMENTS ..................................17
Pre-Start Check List ................................................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 ................................18
OPERATING SEQUENCE .........................................19
Heating Mode ..........................................................19
Cooling Mode ..........................................................20
De-Humidification Control ....................................20
Delay Override ........................................................20
Fan Only Mode ........................................................20
EQUIPMENT MAINTENANCE ...................................20
Cleaning of Heat Exchanger ...................................21
Cleaning of Burners ................................................22
TROUBLESHOOTING - COOLING MODE ...............24
Diagnostic Display ...................................................24
Instrumentation .......................................................24
Low Ambient Cooling ..............................................24
TROUBLESHOOTING - HEATING MODE ................24
REPLACEMENT PARTS ............................................25
HEATING COMPONENT FUNCTIONS .....................25
O P T I O N A L F U R N AC E C O N T R O L B OA R D
CONNECTIONS .........................................................25
FIGURES & TABLES .................................................26
Figure 10. Unit Dimensions ..................................26
Table 11. Center of Gravity & Shipping Weights ...26
Airflow Data ...........................................................27
Table 12. Nominal Heating Airflow Rates &
Temperature Rises (° F) .......................27
Table 13. Airflow Settings for Cooling Mode .........27
Table 14. Airflow Settings (CFM) & Rise (° F)
for Heating Mode ..................................27
Gas Information
.....................................................28
Table 15. Gas Pipe Capaacities ...........................28
Table 16. Gas Flow Rates ....................................28
Figure 11. Gas Valve Label ..................................29
Electrical Information
............................................30
Figure 12. Two-Stage, Hot Surface Ignition &
Blower Control Board ..........................30
Figure 13. VSHE Blower Control Board ...............30
Figure 14. Interface Board in Control Panel .........31
Table 17. Interface Board Operating Codes .........31
Figure 15. R6GI Inverter Assembly ......................32
Figure 16. R6GI Typical Heat Exchanger Assy ....33
Figure 17. Wiring Diagram (2, 3, & 4 Ton) ............34
Figure 18. Wiring Diagram (5 Ton) .......................35
REFRIGERANT CHARGING .....................................36
Alternate Procedure for Charging Air Conditioner
in Cooling Mode ......................................................36
Application Notes on the Use of Charging Charts ...36
Figure 19. Charging Chart for 2 Ton Units ............37
Figure 20. Charging Chart for 3 Ton Units ............37
Figure 21. Charging Chart for 4 Ton Units ............38
Figure 22. Charging Chart for 5 Ton Units ............38
Figure 23. Temperature Sensor Resistance
Charts .................................................39
INSTALLATION / PERFORMANCE CHECK LIST ....40