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 16.
Gas Regulator or Gas Control Valve
Equipment
Shutoff
Valve
Propane/LP
Supply
Tank
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 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 sup- ply 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.
Equipment | Open |
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Figure 24 - Equipment Shutoff Valve | |
Figure 25 - Checking Gas Joints
(Propane/LP Only)
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Gas Meter
Figure 26 - Checking Gas Joints (Natural
Gas Only)
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
5.Correct all leaks at once.
6.Light fireplace (see Operating Fireplace, page 22). Check all other internal joints for leaks.
7.Turn off fireplace (see To Turn Off Gas to Appli- ance, page 23 for
els or page 25 for Remote-Ready Models).
18 | www.desatech.com |