Natural Gas to Propane Conversion Instructions

ManualsBrandsAirQuest ManualsCentral Air & Heating3.5 Ton 13 SEER 80% AFUE 132,000 BTU Gas Furnace and Air Conditioner System - Multi-Positional

Figure 17 Burner Flame

Burner Flame

Burner

Manifold

A11461

CHECK LOW GAS PRESSURE

SWITCH

The newly installed low gas pressure switch is a safety device

used to guard against adverse burner operating characteristics

that can result from low gas supply pressure. Switch opens at

not less than 6.5 in. w.c. and closes at not greater than 10.2 in.

w.c.

This switch also prevents operation when the propane tank level

is low which can result in gas with a high concentration of

impurities, additives, and residues that have settled to the

bottom of the tank. Operation under these conditions can cause

harm to the heat exchanger system. This normally open switch

closes when gas is supplied to gas valve under normal

operating pressure. The closed switch completes control circuit.

Should an interruption or reduction in gas supply occur, the gas

pressure at switch drops below low gas pressure switch setting,

and switch opens. Any interruption in control circuit (in which low

gas pressure switch is wired) quickly closes gas valve and stops

gas flow to burners. When normal gas pressure is restored, the

system must be electrically reset to re- establish normal heating

operation.

Before leaving installation, observe unit operation through two

complete heating cycles. During this time, turn gas supply to gas

valve off just long enough to completely extinguish burner flame,

then instantly restore full gas supply. To ensure proper low gas

pressure switch operation, observe that there is no gas supply

to burners until after hot surface igniter begins glowing.

LABEL APPLICATION

1. Fill in Conversion Responsibility Label 344674- 204 and

apply to Blower Access Door of furnace. Date, name, and

address of organization making this conversion are

required. (See Figure 18)

2. Attach Conversion Rating Plate Label 344674- 201 to

outer door of furnace. (See Figure 6)

3. Apply Gas Control Conversion Label: Use Gas Control

Conversion Label 344674- 202 (See Figure 19) Do not

use 344674- 203 which is similar.

4. Replace control access door, blower access door and

outer door of furnace.

CHECKOUT

1. Observe unit operation through two complete heating

cycles.

2. See Sequence of Operation in furnace Installation, Start-

Up, and Operating Instructions.

3. Set room thermostat to desired temperature.

Figure 18

Gas Conversion Responsibility Label

A190074

Figure 19 Gas Control Conversion Label

A190075

Manufacturer reserves the right to c hange, at any time, specifications and designs without notice and without obligations.

Catalog No: AG- KN018SNP- 01 REV C

Replaces: AG- KN018SNP- 01

Edition Da te: 06/19