14. Reinstall manifold with 4 screws removed in Procedure 8. Burners should be checked for proper alignment of the burner crossover slot.
Verify green ground wire is attached to burner manifold
NOTE:
Failure to attach ground wire to gas manifold on burner box will result in loss of flame signal resulting in a no heat condition.
15. Reconnect wires to flame sensor and flame rollout safety switch(es). See the furnace wiring label to ensure proper location of wires.
16. Reconnect igniter wire connector. Verify Igniter to Burner alignment. (See Fig. 30.)
17. Reconnect wires to gas valve. See wiring label on furnace to ensure proper location of wires.
18. Reconnect gas supply pipe to gas valve using backup wrench on gas valve to prevent rotation and improper orientation.
NOTE:
Use propane-gas resistant pipe dope to prevent gas leaks. DO NOT use Teflon tape.
PROCEDURE 2—CONVERT OR PRE-ADJUST GAS VALVE
A.
Convert Single-Stage Gas Valve
The following furnaces must have the regulator spring replaced in the gas valve:
1. Be sure main gas and electrical supplies are off.
2. Remove regulator seal cap. (See Fig. 16A.)
CLEARANCE
LABEL
GAS CONTROL
CONVERSION
LABEL
CONVERSION
RESPONSIBILITY
LABEL
BURNERS
MANIFOLD
BURNER
HOLD–DOWN
BRACKET
GAS VALVE
BLOWER
COMPARTMENT
DOOR
CONVERSION
RATING
PLATE
FURNACE
RATING
PLATE
A95459
Fig. 12A—Downflow and Downflow/Horizontal,
Standing Pilot, Fixed Speed, Non-Condensing
Furnace Component and Conversion Label
GAS CONTROL
CONVERSION
LABEL
CONVERSION
RESPONSIBILITY
LABEL
BURNERS
MANIFOLD
CLEARANCE
LABEL
BURNER
HOLD–DOWN
BRACKET
GAS VALVE
BLOWER
COMPARTMENT
DOOR
CONVERSION
RATING
PLATE
FURNACE
RATING
PLATE
A95460
Fig. 12B—Upflow and Upflow/Horizontal,
Standing Pilot, Fixed Speed, Non-Condensing
Furnace Component and Conversion Label
Fig. 13—Removal of Low NO
x
A95171
AS SHIPPED
COIL REMOVAL
58PAV
383KAV
PG8UAA
58WAV
395CAV
PG8DAA
58RAV
373LAV
393AAV
58ZAV
376CAV
58YAV
—14—