J962V Installation Manual

ManualsBrandsOxbox ManualsFurnacesJ962V - 100k BTU - Two-Stage Gas Furnace - 96% AFUE

TABLE OF CONTENTS

IMPORTANT SAFETY INFORMATION .............................. 3

REQUIREMENTS & CODES ..............................................4

Combustion Air Quality ....................................................5

Heating Load ....................................................................5

Installation in a Garage ....................................................5

Clearances to Combustible Materials ..............................6

Operation of Furnace During Construction ......................6

COMBUSTION AIR & VENTING REQUIREMENTS ..........7

Direct Vent Systems ........................................................8

Conventional Vent Systems - Conﬁned Spaces ..............8

Air From Inside .............................................................. 8

Outdoor Air from a Crawl Space or Vented Attic ........... 8

Outdoor Air Using Vertical Ducts ..................................8

Outdoor Air Using Horizontal Ducts ..............................9

Air Directly Through an Exterior Wall ............................9

Alternate Method of Providing Air from Outside: ...........10

Conventional Vent Systems - Unconﬁned Spaces ..........10

Category IV Venting ......................................................... 10

Vent Pipe Material ......................................................... 10

Vent Pipe Length & Diameter ........................................10

Vent Pipe Installation ....................................................11

Outdoor Terminations - Horizontal Venting ...................11

Outdoor Terminations - Vertical Venting .......................12

Vent Freezing Protection ...............................................13

Existing Installations ......................................................13

Condensate Disposal ....................................................... 13

CIRCULATING AIR REQUIREMENTS ............................... 13

Plenums & Air Ducts ........................................................13

Return Air Connections .................................................... 14

Supply Air Connections ....................................................14

Acoustical Treatments .....................................................14

FURNACE INSTALLATION ................................................ 14

General Requirements ..................................................... 14

Installation on a concrete slab .......................................15

Inducer & Venting Options ...............................................15

Inducer Assembly Rotation ...........................................15

Pressure Switch Tubing ................................................16

Accessories ......................................................................16

Finish Flange .................................................................16

Rubber Grommets .........................................................16

PVC Components .........................................................16

Typical Orientation .................................................17

Alternate Orientation ..............................................17

Condensate Drain Lines ................................................17

GAS SUPPLY & PIPING .....................................................17

Leak Check ......................................................................18

High Altitude Application (Natural Gas Only) ...................19

Converting from Natural Gas to LP / Propane .................19

ELECTRICAL WIRING .......................................................20

Line Voltage Wiring .......................................................... 20

Grounding ........................................................................21

Thermostat / Low Voltage Connections ...........................21

Single Stage AC & Single Stage Thermostat ................21

Single Stage AC & Two Stage Thermostat ...................21

Two-Stage AC & Two-Stage Thermostat ......................21

Autostaging for Single Stage Thermostats ......................21

Autostaging for Two-Stage Thermostats .........................22

Blower Speed Conﬁguration ............................................22

Fixed Speed Blower Applications ..................................22

Dehumidiﬁcation Options .................................................22

Heat Anticipator ...............................................................22

START-UP & ADJUSTMENTS ...........................................22

Pre-Start Check List ......................................................... 22

Start-up Procedures ......................................................... 23

Verifying & Adjusting Input Rate ......................................23

Verifying & Adjusting Temperature Rise ..........................24

Verifying Burner Operation ..............................................24

OPERATING SEQUENCE ..................................................24

Heating Cycle ...................................................................24

Cooling Cycle ................................................................... 24

Fan Mode ......................................................................... 25

MAINTENANCE ..................................................................25

FIGURES & TABLES ..........................................................26

Figure 23. J962V*D Cabinet Dimensions ...................... 26

Gas Information ...............................................................27

Table 6. Gas Flow Rates ...............................................27

Table 7. Gas Pipe Capacities ........................................27

Table 8. High Altitude Deration - Propane Gas .............28

Table 9. Natural Gas Heating Values ............................28

Table 10. High Altitude Deration - Natural Gas with

HIGH Heating Value ...................................... 29

Table 11. High Altitude Deration - Natural Gas with

LOW Heating Value ......................................29

Electrical Information .......................................................30

Figure 24. Two-Stage Fixed Speed Motor Control

Board ...........................................................30

Figure 25. Two-Stage Furnace Control Board ..............30

Figure 26. Wiring Diagram for Two-Stage, Fixed

Speed Downﬂow Furnaces ..........................31

Venting Information .......................................................... 32

Table 12. Vent Termination Clearances ........................ 32

Figure 27. J962V*D Inducer & Venting Options ............33

Figure 28. Horizontal & Vertical Venting .......................34

Figure 29. J962V*D Component Locations ...................34

TROUBLESHOOTING ........................................................35

Table 13. Furnace Control Board Fault Conditions .......35

Table 14. Motor Control Board Fault Conditions ...........35

FURNACE COMPONENTS ................................................35

INSTALLATION CHECKLIST ............................................. 36