Majestic 400DVBL Installation And Operating Instructions Manual page 28

Dvbl series direct vent gas fireplace
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FIREPLACE INSTALLATION
Only persons licensed to work with
gas piping may make the necessary
gas connections to this appliance.
NOTE : The gas line connection may be made using 1/2" rigid tubing or an approved flex connector.
Since some municipalities have additional local codes it is always best to consult your local authorities
and the current edition of the National Fuel Gas Code ANSI.Z223.1, NFPA54. In Canada CSA-B149 (1 or
2) Installation Code.
A listed manual shutoff valve must be installed upstream of the appliance. Union tee and plugged 1/8" NPT pressure tapping
point should be installed upstream of the appliance. See Figure 35.
IMPORTANT: Install main gas valve (equipment shutoff valve) in an accessible location. The main gas valve is
for turning on or shutting off the gas to the fireplace.
Check your building codes for any special requirements for
locating equipment shutoff valve to fireplaces.
Apply pipe joint sealant lightly to male threads. This will
prevent excess sealant from going into pipe. Excess sealant in
pipe could result in clogged burner system valves.
We recommend that you install a sediment trap/drip leg in supply line as shown in Figure 35. Locate sediment trap/drip
leg where it is within reach for cleaning. Install in piping system between fuel supply and burner system. Locate sediment
trap/drip leg where trapped matter is not likely to freeze. A sediment trap collects moisture and contaminants and keeps
them from going into the burner system gas controls. If sediment trap/drip leg is not installed or is installed wrong, burner
system may not run properly.
Approved Flexible Gas
Line
Sediment Trap/Drip Leg
8
CSA Design-Certified Equipment Shutoff Valve
Tee Joint
Pipe Nipple
Cap
Figure 35 - Gas Connection
A manual shutoff valve must be
installed upstream of the appliance.
Union tee and plugged 1/8" NPT
pressure tapping point should be
installed upstream of the appliance.
See Figure 36.
Use pipe joint sealant that is resistant
to liquid petroleum (LP) gas.
with 1/8" NPT Tap*
(4.5" W.C. to 10.5" W.C. Pressure)
3 "
M i
(11" W.C. to 13" W.C. Pressure)
n i m
u m
Natural Gas
From Gas Meter
Propane/LP
From External Regulator
74D0010

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