Lodge Manufacturing GMD1-80N manual VIII. Dealer Maintenance, Electrical, Burners

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All installations and services must be performed by qualified service personnel.

VIII. DEALER MAINTENANCE

A qualified heating contractor should perform the following maintenance procedures at the beginning of each heating season. Correct any deficiencies at once.

?WARNING: Personal injury or property damage could result from repair or service of this furnace by anyone other than a qualified heating contractor. Only the homeowner/user routine maintenance described in the Users Information Manual may be performed by the user.

?WARNING: To avoid injury from moving parts, shut off the power to the furnace before removing blower compartment door.

?CAUTION: Label wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

A.ELECTRICAL:

1.Check all wiring for loose connections and any signs of damage or unusual wear.

2.Check for correct voltage at the furnace when operating.

3.Check amp-draw on blower motor and inducer motor to assure they are not exceeding nameplate amp rating.

4.Check for correct operation and proper settings (if manually adjustable) of all controls.

Shut off gas and disconnect power before continuing.

B.BURNERS

If it appears that material is accumulating in the burner box, the burner box cover can be removed and the box and burners can be vacuumed. If necessary, the burners assembly can be removed by taking out the two screws/one on each bracket on top of burner box and removing the burner manifold assembly. Assembly must be pulled & tilted down in order to remove from box. If necessary, the individual tubes can be cleaned out using compressed air to blow out the individual tubes. Care must be taken not to damage the igniter.

C. INDUCER BLOWER ASSEMBLY

Inspect the pressure switch and tubing connections and inspect the blower/assembly for warpage, deterioration and carbon or other build-up. If necessary, clean the accessible portions of the housing and blower with a damp cloth. Vacuum to remove any lint or dust from the motor assembly.

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Contents GAS-FIRED Furnace Safety Section Page Page Page Table of Contents Section Beginning Page Models GMD1-80N GMD1-80 III. Furnace Specifications ModelBlower Data IV. Installation Roof Jack Standard ChimneyFurnace Location Page Base Installation Page Alcove Installation Closet Installation ? Warning Hazard Combustion AIR Page GAS Piping Electrical Wiring AWG Propane Conversion Contents Quantity NAT. toManifold Removal and Orifice Change Page Adjustment of Heat Input Rate Initial Start UPOperating Instructions GAS Pressure Chart for ALL GMD1-80 Model Furnaces Burner Adjustment Furnace Checkout Procedure Setting Temperature RisePage Installers Instructions to User VI. Starting the Unit Refer to the Troubleshooting Section of this Manual Page Power must be disconnected before servicing Diagnostic FeaturesTurn Tstat Setting Above Room Temp Yes After GAS Valve OPENS, do the Burners IGNITE? Check ALL Burners VIII. Dealer MaintenanceInducer Blower Assembly ElectricalHouse AIR Blower Inspecting the Venting SystemGASKETS/SEALING Materials Heat ExchangerOn START-UP IX. User Information Section Inspection Areas Component LocationsFilter Location and Cleaning Appendix A. Replacement Parts List Page Appendix B Wiring Diagram