Connecting To Gas Supply - Desa VDCFTNB Owner's Operation And Installation Manual

iNsTallaTioN
Continued
CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply and
fireplace. See guidelines under

Connecting to Gas Supply,

page 13.
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 equip-
ment 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 equip-
ment 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 sys-
tem. 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 recon-
nected fittings for leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Fig-
ure 17).
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 to equip-
ment shutoff valve for natural gas or pro-
Equipment
Shutoff
Valve
Figure 17 - Equipment Shutoff Valve
123502-01C
4. Correct all leaks at once.
PRESSURE TESTING FIREPLACE GAS
CONNECTIONS
1. Open equipment shutoff valve (see Fig-
2. Open main gas valve located on or near
3. Make sure control knob of fireplace is in
4. Check all joints from equipment shutoff valve
5. Correct all leaks at once.
6. Light fireplace (see Operation, page 19).
7. Turn off fireplace (see To Turn Off Gas
Open
Closed
www.desatech.com
pane/LP supply to equipment shutoff valve
for propane/LP (see Figures 18 or 19).
Apply noncorrosive leak detection fluid to
all joints. Bubbles forming show a leak.
ure 17).
gas meter for natural gas or open pro-
pane/LP supply tank valve.
the OFF position.
to gas regulator (Thermostat-Controlled
Models) or to gas control valve (Remote-
Ready Models) (see Figures 18 or 19). Apply
noncorrosive leak detection fluid to all joints.
Bubbles forming show a leak.
Check all other internal joints for leaks.
to Appliance, page 20 for Thermostat-
Controlled Models or page 22 for Remote-
Ready Models).
Gas Regulator or
Gas Control Valve
Figure 18 - Checking Gas Joints
(Propane/LP Only)
Gas Regulator or
Gas Control Valve
Figure 19 - Checking Gas Joints
(Natural Gas Only)
Equipment
Shutoff
Valve
Propane/LP
Supply
Tank
Equipment
Shutoff Valve
Gas Meter
15