Archgard 72-DVT30N - Manual (Page 7)

72-DVT30N
7
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.
GAS CONNECTIONS
Have your gas supplier or a qualified gas fitter run a gas supply line into the fireplace.
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” (3mm) NPT plugged tapping accessible for connection to a test gauge. When
connecting the supply line to the gas valve, the installer should brace the gas valve to ensure
that it 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
14 W.C. (3.5 kPa). The orifice is a #37 DMS (2.65 mm) drill size.
ELEVATION INPUT RATING
0-4500 ft (0-1372 M)
30,000 BTU/hr (8.8 kW)
4500 ft (1372 M) and above 30,000 BTU/hr (8.8 kW) less 4% per 1000 ft. (305 M)
Please contact your local 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 (1.62 mm) drill size.
ELEVATION INPUT RATING
0-4500 ft. (0-1372 M)
30,000 BTU/hr (8.8 kW)
4500 ft. (1372 M) and above 30,000 BTU/hr (8.8 kW) less 4% per 1000 ft. (305 M)
Please contact your local 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.