Desa VMH10TPC - Manual (Page 19)

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CONNECTING FIREPLACE TO GAS
SUPPLY
Installation Items Needed
• Phillips screwdriver
• sealant (resistant to propane/LP gas, not pro-
vided)
NOTICE: Most building codes
do not permit concealed gas
connections. A flexible gas
line is provided to allow acces-
sibility from the fireplace (see
Figure 1, page 5). The flexible
gas supply line connection to the
equipment shutoff valve should
be accessible.
1. Route flexible gas line, included, from fire-
place control to equipment shutoff valve
through side or rear access holes in outer
casing (see Figure 1, page 5).
2. Apply pipe joint sealant lightly to male threads
of gas connector attached to flexible gas line/
equipment shutoff valve (see Figure 23).
CAUTION: Avoid damage to
regulator. Hold gas regulator
with wrench when connecting
it to gas piping and/or fittings
(Thermostat-Controlled Models
Only).
CAUTION: Avoid damage to
gas control. Hold gas control
with wrench when connecting
it to gas piping and/or fittings
(Remote-Ready Models Only).
3. Check all gas connections for leaks. See
Checking Gas Connections.
4. Feed flexible gas line into fireplace base area
while replacing branch support. Make sure the
entire flexible gas line is in fireplace base area.
INSTALLATION
Continued
Figure 23 - Attaching Flexible Gas Line
to Equipment Shutoff Valve
Flexible Gas Line
from Fireplace Gas
Regulator Provided
With Fireplace
To Gas Regulator
(Thermostat-Controlled
Models) or Control Valve
(Remote-Ready Models)
Equipment
Shutoff Valve
PROPANE/LP
To External
Regulator
NATURAL
To Gas Supply
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping
and connections, internal and
external to unit, for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an open
flame to check for a leak. Apply
a noncorrosive leak detection
fluid to all joints. Bubbles form-
ing show a leak. Correct all leaks
at once.
CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply
and fireplace. See guidelines
under Connecting to Gas Sup-
ply, page 17.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect appliance with its appliance main gas
valve (control valve) and equipment shutoff valve
from gas supply piping system. Pressures in excess
of 1/2 psig will damage heater regulator.
2. Cap off open end of gas pipe where equipment
shutoff valve was connected.