INSTALLation
Continued
CAUTION: Make sure exter- nal regulator has been installed between propane/LP supply and fireplace.SeeguidelinesunderCon- 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.
Equipment | Open |
| |
Shutoff |
|
Valve |
|
| Closed |
Figure 22 - Equipment Shutoff Valve
Equipment Shutoff Valve
Propane/LP |
Supply |
Tank |
Figure 23 - Checking Gas Joints Shown with Optional Mantel (Propane/LP Gas)
Equipment Shutoff Valve
Gas Meter
Figure 24 - Checking Gas Joints Shown
with Optional Mantel (Natural Gas)
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.
www.desatech.com | 17 |