Monessen Hearth 624DV(ST - Manual (Page 26)

26 42D0200
Designer Series Gas Fireplaces
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 pres-
sure tapping point should be installed upstream of the appliance. Figure 36
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 seal-
ant 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 36. 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 traps moisture and contaminants. This 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.
Natural Gas
From Gas Meter
(4.5" w.c. to 10.5" w.c. Pressure)
Propane/LP
From External Regulator
(11" w.c. to 13" w.c. Pressure)
3" Minimum
FP1978
gas connection
FIREPLaCE INSTaLLaTIoN
Figure 36 -
Gas Connection
Approved Flexible Gas Line
CSA Design-Certified Equipment
Shutoff Valve with 1/8" NPT Tap*
w
a
RNING
only persons licensed to work with gas
piping may make the necessary gas
connections to this appliance.
C
au
TI
o
N
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 35
C
au
TI
o
N
use pipe joint sealant that is resistant to liquid
petroleum (LP) gas.
Pipe Nipple
Cap
Tee Joint
Sediment Trap/Drip Leg