Desa VSGF36NRA Owner's Operation And Installation Manual page 16

Desa owner's operation and installation manual unvented (vent-free) gas fireplace system vsgf36nta, vsgf36pta, vsgf36nra, vsgf36pra
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INSTALLATION
Continued
CHECKING GAS CONNECTIONS
WARNING: Test all gas pip-
ing and connections, internal
and external to unit, for leaks
after installing or servicing. Cor-
rect 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 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
Connecting Fireplace to Gas
Supply, page 15.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect fireplace with its main gas valve
(control valve) and equipment shutoff valve
from gas supply piping system. 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 noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect fireplace 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 18).
16
Equipment
Shutoff Valve
Figure 18 - Equipment Shutoff Valve
Gas Control Valve
Figure 19 - Checking Gas Joints for
Figure 20 - Checking Gas Joints for
www.desatech.com
Closed
Gas Meter
Natural Gas
Propane/LP
Supply Tank
Propane/LP Gas
Open
Equipment
Shutoff
Valve
116746-01A

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