Desa VMH10TPC - Manual (Page 20)

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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 24).
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 equipment
shutoff valve for natural gas or propane/LP
supply to equipment shutoff valve for
propane/LP (see Figures 25 or 26). Apply
noncorrosive leak detection fluid to all joints.
Bubbles forming show a leak.
4. Correct all leaks at once.
INSTALLATION
Continued
Figure 24 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff Valve
Figure 25 - Checking Gas Joints
(Propane/LP Only)
Propane/LP
Supply Tank
Equipment
Shutoff Valve
Gas Regulator or
Gas Control Valve
Equipment
Shutoff Valve
Gas
Meter
Figure 26 - Checking Gas Joints (Natural
Gas Only)
Gas Regulator or
Gas Control Valve
PRESSURE TESTING FIREPLACE GAS
CONNECTIONS
1. Open equipment shutoff valve (see Figure 24).
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 gas regulator (Thermostat-Controlled
Models) or to gas control valve (Remote-
Ready Models) (see Figures 25 or 26). Apply
noncorrosive leak detection fluid to all joints.
Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light fireplace (see Operating Fireplace, page
23). Check all other internal joints for leaks.
7. Turn off fireplace (see To Turn Off Gas to Appli-
ance, page 25 for Thermostat-Controlled Mod-
els or page 27 for Remote-Ready Models).