Natural Gas to Propane Conversion Instructions

ManualsBrandsAirQuest ManualsCooling & Air Quality110,000 BTU 80% AFUE Single Stage Multi-Positional Gas Furnace

6 AG- KN018SNP- 01

Specifications subject to change without notice.

Figure 8 Mixer Screw Location

A06432

REINSTALL BURNER ASSEMBLY

To reinstall burner assembly:

1. Attach flame sensor to burner assembly.

2. Install HSI and bracket to burner assembly.

3. Insert one-piece burner in slot on sides of burner box and

slide burner back in place.

4. Reattach HSI wires to HSI.

5. Verify igniter to burner alignment.

6. For Silicon Nitride igniters, see Figure 9.

7. Re-attach Flame sensor wire to Flame Sensor.

Figure 9

Igniter Position - Side View

9/32”

7.1mm

5/16”

7.9mm

A05025

CONVERT GAS VALVE

! CAUTION

UNIT DAMAGE HAZARD

Failure to follow this caution may result in unit damage

The gas valve must be converted and pre- adjusted before

operating on propane gas. If not converted and pre- adjusted,

sooting and corrosion will occur leading to early heat

exchanger failure.

! WARNING

FIRE, EXPLOSION, ELECTRICAL SHOCK

HAZARD

Failure to follow this warning could result in personal injury,

death or property damage.

Gas supply MUST be shut off before disconnecting electrical

power and proceeding with conversion.

! WARNING

ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personal injury,

death or property damage.

Before installing, modifying, or servicing system, main

electrical disconnect switch must be in the OFF position and

install a lockout tag. There may be more than one disconnect

switch. Lock out and tag switch with a suitable warning label.

Verify proper operation after servicing.

Single Stage Gas Valve

1. Refer to Figure 10.

2. Be sure gas and electrical supplies to furnace are off.

3. Remove caps that conceal adjustment screws for the gas

valve regulators. (See Figure 10)

4. Remove the regulator adjustment screw.

5. Remove the regulator springs (silver).

6. Install the propane gas regulator springs (white).

7. Install the regulator adjustment screws.

8. Turn the adjusting screw clockwise (in) 8.5 full turns. This

will increase the manifold pressure closer to the propane

set point. (See Figure 10)

9. Do not install regulator seal caps at this time.

Figure 10 Gas Valve (Single Stage)

A190068

Remove the natural gas regulator spring (silver)

Install the propane regulator spring (white)

Redundant Auto Gas Valve

A05071