Burners; Before Leaving An Installation; Repair And Replacement Parts - Goodman GMH8 Installation Instructions Manual

BURNERS
_bWARNING
To
PREVENT PERSONAL INJURY OR DEATH, DO NOT REMOVE ANY INTERNAL
COMPARTMENT COVERS OR ATTEMPT ANY ADJUSTMENT. ELECTRICAL
COMPONENTS ARE CONTAINED IN BOTH COMPARTMENTS. CONTACT A
QUALIFIED SERVICE AGENT AT ONCE IF AN ABNORMAL FLAME APPEARANCE
SHOULD DEVELOP.
Periodically during the heating season, make a visual check of
the burner flames. Turn the furnace on at the thermostat. Wait a
few minutes, since any dislodged dust will alter the normal flame
appearance. Flames should be stable, quiet, soft and blue with
slightly orange tips. They should not be yellow. They should
extend directly outward from the burner ports without curling
downward, floating or lifting off the ports.
CLEANING (OUALIFIED SERVICER ONL Y)
1. Shut off electric power and gas supply to the furnace.
2. Disconnect the rollout limit wires, flame sensor wire, and
disconnect the igniter plug.
,_ CAUTION
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS.
WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION.
VERIFY PROPER OPERATION AFTER SERVICING.
3. Remove four (4) screws securing the burner box top.
CAUTION
THE IGNITERIS FRAGILE AND CAN BE EASILYDAMAGED.USE EXTREME
CAUTIONWHENREMOVING THE BURNERBOX TOP.
4. Remove the screws securing the burners to the burner
bracket. Remove the burners.
5. Use bottle brush to clean burner insert and inside of burner.
6. Replace burner (opposite of removal). Ensure burners
are fully seated on burner bracket and are properly aligned.
Replace burner box top. Re-connect wiring.
_ CAUTION
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS.
WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION.
VERIFY PROPER OPERATION AFTER SERVICING.
7. Turn on electric power and gas supply to the furnace.
8. Check furnace for proper operation. Refer to "Operational
Checks" section to verify burner flame characteristics.
XVll. BEFORE LEAVING AN INSTALLATION
• Cycle the furnace with the thermostat at least three times.
Verify cooling and fan only operation.
• Review the Owner's Manual with the homeowner and
discuss proper furnace operation and maintenance.
• Leave literature packet near furnace.
XVlll. REPAIR AND REPLACEMENT PARTS
• When ordering any of the listed functional parts, be sure to
provide the furnace model, manufacturing, and serial
numbers with the order.
• Although only functional parts are shown in the parts list,
all sheet metal parts, doors, etc. may be ordered by
description.
• Parts are available from your distributor.
Functional Parts List-
Two-Stage Gas Valve
Natural Gas Orifice
Propane Gas Orifice
Burner
Hot Surface igniter
Flame Sensor
Gas Manifold
Ignition Control
Blower Mounting Bracket
Pressure Switch
Pressure Switch Hose
Induced Draft Blower
Collector Box
Blower/Collector Box Gasket
Primary Limit Switch
Rollout Limit Switch
Auxiliary Limit Switch
Heat Exchanger
Door Switch
Transformer
Blower Wheel
Blower Housing
Blower Cutoff
Blower Motor
Motor Mount Bracket
Capacitor
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