58MEC
!CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in damage to furnace.
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.
5.Remove wires from gas valve. Note location for reassembly.
6.Remove burner box pressure tube from gas valve regulator fitting.
7.Unplug igniter from harness.
8.Remove igniter leads from slot in manifold grommet.
9.Remove screws that secure manifold to burner box. (See Fig. 6.)
NOTE: Do not remove burner box from cell panel.
10.Remove manifold, orifices, and gas valve as 1 assembly.
11.Remove screws attaching burner assembly in burner box.
NOTE: Use care when removing and reinstalling burners not to strike the hot surface igniter.
12.Remove burner assembly from burner box. NOTE: All burners are attached to burner bracket and can be removed as 1 assembly.
13.Clean burners with soft brush and vacuum.
14.Reinstall burner assembly, manifold, orifice, and gas valve assembly in burner box. Ensure manifold seal grommet is installed properly and burners fit over orifices.
15.Reinsert the igniter wires in the slot in the manifold grom- met, dressing the wires to ensure there is no tension on the igniter itself. (See Fig. 7.)
CELL
PANEL
MANIFOLD
MOUNTING
SCREW
MANIFOLD
GAS VALVE
REGULATOR
FITTING
GAS VALVE
A96304
Fig. 6 - Burner Box Assembly
IGNITER WIRES MUST
BE PLACED IN THIS SLOT
A05074
Fig. 7 - Igniter Wire Placement
!CAUTION
UNIT COMPONENT ELECTRICAL SHORT HAZARD
Failure to follow this caution may result in unit component damage.
Igniter wires must be securely placed in slot in manifold grommet or else they could become pinched or severed and electrically shorted.
16.Reconnect wires to gas valve and igniter. Refer to furnace wiring diagram for proper wire location.
17.Reinstall burner box pressure tube to gas valve regulator fit- ting.
18.Reinstall gas supply pipe to furnace gas control valve using backup wrench on gas valve to prevent rotation and im- proper orientation.
NOTE: Use propane gas resistant pipe dope to prevent gas leaks. DO NOT use Teflon tape.
!WARNING
FIRE, EXPLOSION, UNIT DAMAGE HAZARD
Failure to follow this warning could result in property damage, personal injury, or death.
Gas valve switch MUST be facing forward or tilted upward.
19.Replace burner box cover.
20.Turn on gas and electrical supplies to furnace.
!WARNING
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal injury, death, or property damage.
Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections.
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