Gas Pressure Requirements; Installation Check Off List - Mendota SEABROOK D-40 Installation & Operating Instructions Manual

Direct vent gas fireplace

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A MAJOR CAUSE OF OPERATING PROBLEMS WITH GAS APPLIANCES CAN BE IMPROPER GAS

PRESSURE!

Such problems as changes in flame color or configuration, gas pilot or burner outages, intermittent operation,

changes in heat output, excessive burner noise, etc. are nearly always the result of changes in gas pressure or

improper gas pressure at the time of the installation. The most important item to check during the installation and

the first thing to check when problems occur is gas pressure!

Gas supplies normally enter a residence at 1/2 PSI (13" - 15" W.C.) (3. KPA). A regulator is then placed inside

the residence, which drops this pressure to 7" W.C. (1.8 KPA) (Nat. Gas). This "inches to inches" regulator is of

adequate capacity to service the gas appliances (such as dryer, furnace, etc.). If this regulator's capacity is not

sufficient to add the Gas Fireplace, an additional "inches to inches" regulator must be installed for the Fireplace.

EXCEPTION: Some codes allow 2-PSI (1.4KPA) supplies to enter the residence, in which case "pounds to

inches" regulators are used.

The following table provides information on correct gas pressure requirements. Be sure your gas supplier or

plumber carefully follows this table.

NATURAL GAS

f i r e - p a r t s . c o m

L.P. GAS

TURN GAS VALVE KNOB TO "HIGH" POSITION. GAS PRESSURES MAY VARY PLUS OR MINUS 5%.

*NOTE: FOR HIGH ALTITUDE (ABOVE 5.000 FEET) SOME VARIATIONS IN AIR SHUTTER SETTINGS MAY BE REQUIRED.

Manifold pressure must be taken at the MANIFOLD" tap and inlet pressure at the "SUPPLY" tap with the burner operating

by a qualified installer (see Figure 10: Pressure Test Port).

GAS LEAK TEST REQUIREMENT: It is the responsibility of the installer/service person to assure

that each and every gas connection and supply tubing that are a part of this fireplace are leak proof. The

qualified/ certified individual connecting the gas supply line, performing pressure tests or performing

any service to this fireplace is required to perform a THOROUGH LEAK TEST on ALL gas fittings that

are a part of this appliance or the gas supply line connection using soap-water solution or a calibrated

combustible gas detector. Failure to perform this leak test may lead to a house fire and/or an explosion.

Mendota is not responsible for any damages due to an Installer's failure to conduct a leak test and verify

that all connections and supply lines are leak proof.