Installation
900077-00, 01/2018
Innovative Hearth Products
DRL6500 Linear Direct-Vent Gas Fireplaces
39
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
2.
Connect the flare fitting on the flex-line to the shutoff valve. Tighten by hand, and then use a pipe wrench to
tighten completely, 1/4-turn at a time.
Figure 32 - Control Compartment
Figure 33 - Gas Line Connection
ON
OFF
Main gas shutoff valve
Gas
Stub
1/2" x 3/8" Flare
Shut-Off Valve
3/8" Flex Tubing
3/8" NPT x 3/8
"
Flare Fitting
Gas
Valve
Flex Line Connector
Gas
valve
3/8 NPT x 3/8”
Flare fitting
1/2 x 3/8” Flare
shutoff valve
3/8” Flex tubing
Gas
stub
Access the Control Compartment
See
Page 55
for instructions on
Accessing the Control Compartment
.
The control valve has a 3/8” (10 mm) NPT thread inlet port.
Secure all joints tightly using appropriate tools and sealing compounds (ensure propane resistant compounds are
used in propane applications). Optionally, seal around the gas line to prevent cold air leakage. Gas line holes and
other openings can be caulked or stuffed with unfaced fiberglass insulation.
All codes require a shutoff valve mounted in the supply line. The orientation of the shutoff valve should face the
front.
Figure 33
illustrates two methods for connecting the gas supply. A sediment trap is recommended to prevent
moisture and debris in the gas line from damaging the valve.
Test Factory and Field Connections for Gas Leaks
WARNING
Never use an open flame to check for leaks.
Turn on gas supply and test for gas leaks, using a gas leak test solution—also known as bubble leak solution.
NOTE:
Using a soapy water solution is an effective leak test solution but it is not recommended, because the soap
residue that is left on the pipes/fittings can result in corrosion over time.
1.
Light the fireplace (refer to the lighting instructions label in the control compartment or
Page 67
).
2.
Brush all joints and connections with the gas leak test solution to check for leaks. If bubbles are formed, or gas
odor is detected, turn the receiver or remote control to the OFF position. Either tighten or refasten the leaking
connection, and then retest as described above.
3.
When the gas lines are tested and leak free, rinse off the leak testing solution.
12.
Install the Wall Switch Receiver
The wall switch receiver for the Total Comfort Control™ remote control system connects directly to the gas valve,
stepper motor, and fan control module with an umbilical cord wiring harness.
1.
When wall finish is complete, install the wall switch receiver in the previously installed junction box, and connect
the terminal to the connector on the back of the receiver.
2.
Install the receiver cover plate. Ensure the receiver switch is properly aligned with the switch cover
13.
Initialize the Remote Control System
(see Page 45)
14.
Verify Proper Fireplace Operation
1.
With the gas line installed, inspect the system before closing the front of the unit.
2.
Follow the pilot lighting instructions (
Page 67
).
NOTE:
When lighting the fireplace for the first time, it will take a few minutes for the gas line to purge itself of air.
When purged, the pilot and burner will light and operate as indicated. Subsequent lighting of the fireplace will not
require purging.
