Thermo Pride GMD1-60N Installation And Service Manual page 3

All installations and services must be performed by qualified service personnel.
after turning off the gas supply. A final test for gas leakage must be made after
purging the gas line.
DO NOT wet electronic components during the leak test. Wetting
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electronic components may damage circuitry and cause a hazardous situation.
Dry moisture from all leads and terminals if wetting occurs. Wait at least 24
hours for the circuit to fully dry before energizing the system.
The furnace and its gas valve must be disconnected from the gas
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supply during pressure testing of the gas supply system at pressures in excess
of 1/2 PSIG or 14.0 inches W.G. The furnace can be isolated from the gas supply
by closing its manual shut off valve at test pressures equal to or less than 1/2
PSIG or 14.0 inches W.G.
Copper and brass tubing and fittings (except tin lined) shall not be
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used if the gas contains more than a trace (0.3 grains per 100 cubic ft.) of
hydrogen sulfide gas. Check with your gas supplier.
If you suspect there is a problem with the furnace, the venting system
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or any other related problem, immediately contact a qualified service agency. If a
service agency is not available, contact your fuel supplier.
Personal injury, or property damage, could result from major repair or
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service of this furnace by anyone other than a qualified contractor. Only the
routine maintenance described in the user section of this manual should be
performed by the user.
Do not block or obstruct air openings on the furnace or air openings
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communicating with the area in which the furnace is installed.
Do not allow the outside air intake to be blocked or obstructed by
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vegetation, ice, snow or any other materials.
Do not use this furnace if any part has been underwater. Immediately
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call a qualified service agency to inspect the furnace and to replace any part of
the electrical or control system, which has been underwater.
Should overheating occur or the gas supply fail to shut off, shut off the
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manual gas supply valve to the furnace before shutting off the electrical supply.
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