Installation – Desa CGCFTP EN User Manual

Page 17

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111044-01J

17

INSTALLATION

Continued

CAUTION: Make sure exter-

nal regulator has been installed

between propane/LP supply and

fireplace. See guidelines under Con-

necting to Gas Supply, page 14.

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.

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 22).

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 23 and 24). Apply a noncorrosive

leak detection fluid to gas joints. Bubbles

forming show a leak.

4. Correct all leaks at once.

Figure 22 - Equipment Shutoff Valve

Open

Closed

Equipment
Shutoff
Valve

Figure 23 - Checking Gas Joints Shown

with Optional Mantel (Propane/LP Gas)

Equipment Shutoff Valve

Propane/LP
Supply
Tank

Figure 24 - Checking Gas Joints Shown

with Optional Mantel (Natural Gas)

Gas Meter

Equipment Shutoff Valve

PRESSURE TESTING FIREPLACE GAS
CONNECTIONS

1. Open equipment shutoff valve (see Figure 22).

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 23 and

24). 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

18). Check all other internal joints for leaks.

7. Turn off fireplace (see To Turn Off Gas to

Appliance, page 19).

8. Replace front panel.

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