Monessen Hearth Direct Vent Gas Fireplace BDV400 Installation And Operating Instructions Manual page 27

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
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 CAN/CGA-B149 (1 or
2) Installation Code.
A listed manual shutoff valve must be installed upstream of the appliance. Union tee and plugged
point should be installed upstream of the appliance. See Figure 34.
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 fi replace.
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 34. 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
54D0700
1
/ " rigid tubing or an approved fl ex connector. Since
2
CSA Design-Certifi ed Equipment
Shutoff Valve with
Tee Joint
Pipe Nipple
Cap
Figure 34 - Gas Connection
FIREPLACE INSTALLATION
A manual shutoff valve must be installed
upstream of the appliance. Union tee
1
and plugged / " NPT pressure tapping
8
point should be installed upstream of
the appliance. See Figure 35.
Use pipe joint sealant that is resistant
to liquid petroleum (LP) gas.
1
/ " NPT Tap*
8
Natural Gas
From Gas Meter
(4.5" W.C. to 10.5" W.C. Pressure)
Propane/LP
From External Regulator
3 "
M i
(11" W.C. to 13" W.C. Pressure)
n i m
u m
1
/ " NPT pressure tapping
8
27