Installation
900994-00K, 07/2021
Innovative Hearth Products
DRL2000 & DRL3500 Series Direct-Vent Gas Fireplaces
44
Access the Control Compartment
See
Page 57
for instructions on
Accessing the Control Compartment
.
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 35
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
(see
Figure 34
)
.
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
Pages 67-70
)
.
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 gas control knob (OFF/PILOT/ON) to the OFF position (millivolt units). 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.
13.
Connect the Gas Line
All codes require a shutoff valve mounted in the supply line.
Figure 35
illustrates two methods for connecting the gas
supply. The flex-line method is acceptable in the U.S., however, Canadian requirements vary depending on locality.
Installation must be in compliance with local codes.
NOTE:
A sediment trap is recommended in the gas piping
(see
Figure 34
)
within the home to prevent moisture and
debris in the line from damaging the valve.
NOTE:
Secure all joints tightly using appropriate tools and sealing compounds (ensure propane resistant compounds
are used in propane applications). 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.
These fireplaces are equipped with a gas flex line for use (where permitted) in connecting the unit to the gas line. A
gas flex line is provided to aid in attaching the direct-vent fireplace to the gas supply. The gas flex line can only be
used where local codes permit. The flex line is rated for both natural and propane gas. A manual shut off valve is also
provided with the flex line.
The gas control valve is located in the lower control compartment
(
Figure 1, Page 9
)
.
Figure 35 - Gas Line Connection
Figure 34 - Sediment Trap
(Optional) flexible gas line
connector
Gas valve
3/8” Nipple
3/8” Union
3/8” Close nipple
3/8” Shutoff valve
3/8 NPT x 3/8” Flare
fitting
1/2 x 3/8” Flare
shutoff valve
3/8” Flex tubing
Gas stub
1/2 x 3/8”
Reducer
To Equipment Inlet
Gas Supply Inlet
Tee Fitting
3”
Minimum
Nipple
Cap
f i r e - p a r t s . c o m
