Optima 45 - 3

7

GAS CONNECTIONS

Before connecting the appliance to the gas supply line, double check that the appliance you have purchased is designed for the gas type you are using. The gas type markings are located on the certification label and also on the appliance’s gas valve.

Adequate clearance for proper installation and checking of the gas connections must be provided. All gas connections must be checked for gas leaks.

Have your gas supplier or a qualified gas fitter run a gas supply line into the heater.

The line must be properly sized and fitted according to the installation codes. Immediately upstream of the supply connection, the fitter shall provide an accessible manual shut-off valve and a ⅛” (3 mm) NPT plugged tapping accessible for connection to a test gauge. When connecting the supply line to the gas valve, the installer shall brace the gas valve to ensure that gas valve is not moved from its bracket. If the valve is not braced when the supply line is connected, the valve may be moved and cause a “break” in the main burner supply line. Such damage is not covered by the manufacturer’s warranty.

CAUTION: The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure-testing of that system at test pressures in excess of ½ psig (3.5 kPa). The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure-testing of the gas supply piping system at test pressures equal to or less than ½ psig (3.5 kPa). Failure to do so will damage the appliance’s gas valve. Such damage is not covered by the manufacturer’s warranty.

Natural Gas Pressure Settings:

The inlet supply or line pressure must be a minimum of 4.5” w.c. (1.1 kPa) and a maximum of 8” w.c. (2 kPa). The orifice is a #37 DMS (2.66 mm) drill size.

ELEVATION

INPUT RATING

0-4500 ft (0-1372 M)

28,000

BTU/hr

(8.2 kW)

4500 ft (1372 M) and above

28,000

BTU/hr (8.2 kW) less 4% per 1000 ft. (305 M)

Please contact your local utility company or distributor for the appropriate orifice size you require.

Propane Pressure Settings:

The inlet supply or line pressure must be a minimum of 11” w.c. (2.8 kPa) and a maximum of 14” w.c. (3.5 kPa). The orifice is a #52 DMS (1.60 mm) drill size.

ELEVATION

INPUT RATING

0-4500 ft. (0-1372 M)

28,000 BTU/hr

(8.8 kW)

4500 ft. (1372 M) and above.

28,000 BTU/hr (8.8 kW) less 4% per 1000 ft. (305 M)

Please contact your local utility company or distributor for the appropriate orifice size you require

NOTE: THE INPUT RATING SHOULD ALWAYS BE CHECKED WHEN FIRST RUNNING THIS APPLIANCE. To do this, reduce the background flow rate, time the meter, light the fireplace and take another reading after 15 minutes of operation. Check with your gas supplier for the gas BTU content at your elevation. Input is the rate of flow multiplied by the heating value of the gas (cubic feet/hour x BTU per cubic feet). Adjust the manifold pressure so that the unit does not operate above the rated input.

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Optima Company 45 - 3 manual GAS Connections, Natural Gas Pressure Settings, Propane Pressure Settings

45 - 3 specifications

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