Desa VMH26TPC Indoor Fireplace User Manual


 
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113111-01C
18
Figure 25 - Attaching Flexible Gas Line
to Equipment Shutoff Valve
Flexible Gas Line
from Fireplace Gas
Regulator Provided
with Fireplace
To Fireplace Gas
Regulator
Equipment Shutoff
Valve Provided by
Installer
PROPANE/LP
To External Regulator
NATURA
L
To Gas Supply
INSTALLATION
Continued
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 detec
-
tion fluid to all joints. Bubbles
forming 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 Con
-
necting to Gas Supply, page 16.
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 shut-
off valve from gas supply piping. Pressures
in excess of 1/2 psig will damage fireplace
regulator.
2. Cap off open end of gas pipe where equipment
shutoff valve was connected.
3. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve
located on or near gas meter for natural gas,
or using compressed air.
4. Check all joints of gas supply piping system.
Apply a noncorrosive leak detection fluid to
gas joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment shutoff valve
to gas supply. Check reconnected fittings for
leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 26).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve
located on or near gas meter for natural gas,
or using compressed air.
3. Check all joints from gas meter for natural
or propane/LP supply to equipment shutoff
valve (see Figures 27 and 28, page 19). Ap
-
ply a noncorrosive leak detection fluid to gas
joints. Bubbles forming show a leak.
4. Correct all leaks at once.
PRESSURE TESTING FIREPLACE GAS
CONNECTIONS
1. Open equipment shutoff valve (see Figure 26).
2. Open main gas valve located on or near gas
meter for natural gas or open propane/LP
supply tank valve.
3. Make sure control knob of fireplace is in the
OFF position.
4. Check all joints from equipment shutoff valve
to thermostat gas valve (see Figures 27 and 28,
page 19). Apply a noncorrosive leak detection
fluid to gas joints. Bubbles forming show a
leak.
5. Correct all leaks at once.
6. Light fireplace (see Operating Fireplace, page
19). Check all other internal joints for leaks.
7. Turn off fireplace (see To Turn Off Gas to
Appliance, page 20).
Figure 26 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff
Valve