General Information
900077-00, 01/2018
Innovative Hearth Products
DRL6500 Linear Direct-Vent Gas Fireplaces
10
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 1 - Electronic Gas Valve
Orange Wire
(from DFC Wire
Harness)
Pressure Regulator
Tower
Main Gas Inlet
3/8" NPT
Green Wire
(from DFC Wire Harness)
Inlet (IN) Test Port
Manifold (OUT)
Test Port
Connect GTMS
wire harness
Yellow Ground Wire
(from DFC Wire Harness)
Test gauge connections are provided on the front of the electronic gas control valve (identified IN for the inlet and
OUT for the manifold side). To access the pressure taps on the valve, remove the four (4) screws in the access plate
below the burner. A set of external 1/8” NPT test ports is also provided just below the glass door, to the right of center
(
Figure 2
).
If installed, remove the optional bezel and surround to access the ports.
Figure 2 - Electronic Gas Valve Test Ports
Inlet (IN)
Manifold (OUT)
Air shutter
adjustment lever
Lower right corner
of fireplace
NOTE:
Before accessing the test ports, the fireplace must be OFF and COLD. Turn OFF the main gas supply before
connecting to the pressure taps.
Propane tanks are at pressures that will cause damage to valve components. Verify that the tanks have step down
regulators to reduce the pressure to safe levels.
Using a propane tank smaller than 100 lbs may create pressure loss and insufficient fuel delivery, which can cause
sooting, severe delayed ignition, or other malfunctions (see NPFA 58).
Any damage as a result of insufficient tank size or other improper installation is NOT covered under the limited war-
ranty.
The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during
any pressure testing of that system at test pressures
in excess of
1/2 psi (3.5 kPa).
The appliance must be isolated from the gas supply piping system by closing its equipment shutoff valve during
any pressure testing of the gas supply piping system at test pressures
equal to or less than
1/2 psi (3.5 kPa).
