J801X Installation Manual

2
TABLE OF CONTENTS
IMPORTANT SAFETY INFORMATION .........................3
REQUIREMENTS & CODES .........................................3
Combustion Air Quality .............................................. 4
Clearances to Combustible Materials ........................ 4
Heating Load .............................................................4
Installation in a Garage ..............................................5
Operation of Furnace During Construction ................ 5
COMBUSTION AIR & VENTING REQUIREMENTS .....5
Installation In A Confined Space ...............................6
Air From Inside ........................................................6
Outdoor Air from a Crawl Space or Vented Attic .....6
Outdoor Air Using Vertical Ducts .............................6
Outdoor Air Using Horizontal Ducts ......................... 6
Air Directly Through An Exterior Wall ......................7
Alternate Method of Providing Air from Outside: .....8
Installation In An Unconfined Space ..........................8
Category I Venting ..................................................... 8
Horizontal Venting .....................................................9
Flexible Vent Systems ...............................................9
CIRCULATING AIR REQUIREMENTS ..........................9
Plenums & Air Ducts ..................................................9
Return Air Connections .............................................10
Upflow & Horizontal Furnaces .................................10
Downflow Furnaces .................................................10
Supply Air Connections .............................................10
Acoustical Treatments ...............................................10
FURNACE INSTALLATION ...........................................11
About The Furnace .................................................... 11
Before You Install the Furnace ..................................11
Locating the Furnace ................................................. 11
Upflow Furnaces ........................................................11
Horizontal Furnaces ..................................................11
Downflow Installation ................................................. 12
Installation on a Concrete Slab ................................ 12
Pressure Switch Tubing .............................................13
Bottom Panel Removal .............................................. 13
Alternate Bottom Panel Removal .............................13
GAS SUPPLY & PIPING ................................................14
Leak Check ................................................................14
High Altitude Application ............................................14
Conversion to LP / Propane ......................................16
ELECTRICAL WIRING ..................................................17
Line Voltage Wiring ...................................................17
Grounding .................................................................. 17
Thermostat / Low Voltage Connections .....................17
Heat Anticipator .........................................................17
Twinning ....................................................................17
One stage heating .....................................................19
Two stage heating .....................................................19
START-UP & ADJUSTMENTS ...................................... 19
Pre-Start Check List ..................................................19
Start-up Procedures ..................................................19
Verifying & Adjusting Input Rate ................................ 19
Verifying & Adjusting Temperature Rise ....................20
Verifying Burner Operation ........................................20
Verify Operation of the Supply Air Limit Switch .........20
OPERATING SEQUENCE .............................................21
Heating Cycle ............................................................21
Cooling Cycle ............................................................21
Fan Mode ..................................................................21
MAINTENANCE .............................................................21
FIGURES & TABLES .....................................................23
Figure 18. Furnace Dimensions ...............................23
Electrical Information .................................................24
Figure 19. Wiring Diagram ....................................... 24
Figure 20. Ladder Diagram ...................................... 25
Gas Information .........................................................26
Table 3. Gas Flow Rates .........................................26
Table 4. Gas Pipe Capacities ..................................26
Table 5. High Altitude Deration Chart for Propane
Gas ............................................................27
Table 6. Natural Gas Heating Values ......................27
Table 7. High Altitude Deration Chart for Natural
Gas - High Heating Value ..........................28
Table 8. High Altitude Deration Chart for Natural
Gas - Low Heating Value ........................... 28
TROUBLESHOOTING ...................................................29
Table 9. Control Board Fault Conditions ..................29
FURNACE COMPONENTS ...........................................29
Figure 21. Component Locations .............................30
INSTALLATION CHECKLIST ........................................32