Archgard 40-DVI40N - Manual (Page 9)

Optima 40 - SB
9
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 must 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 must 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” wc (1.1 kPa) and a maximum of 8”
wc (2 kPa). The orifice has a #31 DMS (305 mm dia.) drill size.
ELEVATION
INPUT RATING
0-4500 ft. (0-1372 M) 40,000 BTU/hr (11.7 kW)
4500 ft. (1372 M) and above 40,000 BTU/hr (11.7 kW) less 4% per 1000 ft. (300 M)
Please contact your local distributor for the appropriate orifice size.
Propane Pressure Settings:
The inlet supply or line pressure must be a minimum of 11” wc (2.8 kPa) and a maximum of 14”
wc (3.5 kPa). The orifice has a #49 DMS (1.85 mm dia.) drill size.
ELEVATION
INPUT RATING
0-4500 ft. (0-1372 M) 40,000 BTU/hr (11.7 kW)
4500 ft. (1372 M) and above 40,000 BTU/hr (11.7 kW) less 4% per 1000 ft. (300 M)
Please contact your local distributor for the appropriate orifice size.
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.