MHSC CDVR33N/PV7 Installation And Operating Instructions Manual page 26

CDV7 Series Gas Fireplace
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/" 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.Z3.1, NFPA54. In Canada CSA-B149
(1 or ) Installation Code.
A listed manual shutoff valve must be installed upstream
of the appliance. Union tee and plugged 1/8" NPT pres-
sure tapping point should be installed upstream of the
appliance. Figure 40
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 valve.
We recommend that you install a sediment trap/drip leg in supply line as shown in Figure 40. 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
6
CSA Design-Certified Equipment Shutoff Valve
with 1/8" NPT Tap*
Tee Joint
Pipe Nipple
Cap
Figure 40 -
Gas Connection
FP1978
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.
Figure 38
Use pipe joint sealant that is resistant to liquid
petroleum (LP) gas.
(4.5" w.c. to 10.5" w.c. Pressure)
(11" w.c. to 13" w.c. Pressure)
3 "
M
i n i
m u
m
FIReplaCe InSTallaTIon
Natural Gas
From Gas Meter
Propane/LP
From External Regulator
69D3011