Thermo Products MHA1-75N General Inspection, Shut off gas and disconnect power before continuing

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

V. Dealer Maintenance

SAFETY DURING SERVICING AND INSPECTION

:

ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD

•Failure to follow safety warnings exactly could result in dangerous operation, serious injury, death or property damage.

•Improper servicing could result in dangerous operation, serious injury, death or property damage.

•Before servicing, disconnect all electrical power to furnace.

•When servicing controls, label all wires prior to disconnecting. Reconnect wires correctly.

•Verify proper operation after servicing.

Notice: Homeowner/user routine maintenance

Complete instructions for the homeowner including maintenance procedures, which must be performed by the homeowner/user, can be found in the "Users Information Manual."

The following maintenance procedures should be performed at the beginning of each heating season by a qualified heating contractor. Correct any deficiencies at once.

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. General Inspection

1.Inspect the heat exchanger for evidence of corrosion, pitting, warpage, deterioration, and carbon build-up. Also, look for loose gaskets in the flue pipe, burner box and accessible areas of the heat exchanger.

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