FIREPLACE MANUFACTURERS INC.
UNVENTED PROPANE/LP GAS LOG HEATER
INSTALLATION
Continued
CHECKING GAS
CONNECTIONS
WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. Cor- rect all leaks at once.
WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.
CAUTION: Make sure exter- nal regulator has been installed between propane/LP supply and heater. See guidelines under Con- necting to Gas Supply, page 11.
Test Pressures Equ al To or Less Than 1/2 PSIG (3.5 kPa)
1.Close equipment shutoff valve (see Fig- ure 15).
2.Pressurize supply piping system by ei- ther using compressed air or opening propane/LP supply tank valve.
3.Check all joints from propane/LP sup- ply tank to equipment shutoff valve (see Figure 16). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.
4.Correct all leaks at once.
Open
Equipment
Shutoff
Valve
O
ClosedPOS
Figure 15 - Equipment Shutoff Valve
Pressure Testing Heater Gas Connections
1.Open equipment shutoff valve (see Fig- ure 15).
2.Open propane/LP supply tank valve.
3.Make sure control knob of heater is in the OFF position.
4.Check all joints from equipment shutoff valve to gas control (see Figure 15). Apply mixture of liquid soap and wa- ter to gas joints. Bubbles forming show a leak.
5.Correct all leaks at once.
6.Light heater (see Operating Heater, pages 14 through 16). Check all other internal joints for leaks.
7.Turn off heater (see To Turn Off Gas to Appliance, page 15).
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 pip- |
| ing 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 con- |
| nected. |
3. | Pressurize supply piping system by ei- |
Propane/LP
Supply
Tank
Equipment |
Shutoff Valve |
Control Valve |
Location |
| ther using compressed air or opening |
| propane/LP supply tank valve. |
4. | Check all joints of gas supply piping |
| system. Apply mixture of liquid soap |
| and water to gas joints. Bubbles form- |
| ing show a leak. |
5. | Correct all leaks at once. |
6. | Reconnect heater and equipment |
| shutoff valve to gas supply. Check re- |
| connected fittings for leaks. |
Figure 16 - Checking Gas Joints
12 | 105073 |
