Monessen Hearth CDV7 Installation And Operating Instructions Manual page 28

CDVSC7 & 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 pressure
tapping point should be installed upstream of the appliance.
Figure 41
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 41. 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
with 1/8" NPT Tap*
Tee Joint
Pipe Nipple
Cap
Figure 41 -
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 41
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