Monessen Hearth KHLDV400 Install And Operation Instructions page 22

KHLDV 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 1/2" 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. Figure
25
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 25. 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
Figure 25 -
Gas Connection
22
CSA Design-Certified Equipment Shutoff Valve
1
with /8" NPT Tap*
Tee Joint
Pipe Nipple
Cap
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 24
use pipe joint sealant that is resistant to
liquid petroleum (Lp) gas.
(4.5" w.c. to 10.5" w.c. Pressure)
From External Regulator
(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
73D0024