VANGUARD FLAME-MAX®
UNVENTED PROPANE/LP GAS LOG HEATER
INSTALLATION
Continued
A.G.A.
Manual Shutoff Valve
With 1/8" NPT Tap*
Approved Flexible Gas Hose (if allowed by local codes)
Gas Control
From External Regulator (11" W.C.** to 14" W.C. Pressure)
Pressure Testing Heater Gas Connections
1. | Open manual shutoff valve (see Fig- |
| ure 15). |
2. | Open propane supply tank valve. |
3. | Make sure control knob of heater is in |
| the OFF position. |
4. | Check all joints from manual shutoff |
| valve to control valve (see Figure 16). |
| Apply mixture of liquid soap and wa- |
| ter to gas joints. Bubbles forming show |
| Tee |
|
| Joint |
|
3" Minimum | Pipe | Sediment |
| Trap | |
| Nipple | |
| Cap |
|
Figure 14 - Gas Connection
*Purchase the optional A.G.A.
**Minimum inlet pressure for purpose of input adjustment.
| 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). |
Manual
Shutoff
Open
Valve
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 supply and heater. See guidelines under Con- necting to Gas Supply, page 11.
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG
1.Disconnect heater and its individual manual 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 manual shutoff valve was connected.
3.Pressurize supply piping system by ei- ther using compressed air or
opening propane 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 manual shutoff valve to gas supply. Check reconnected fittings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG
1.Close manual shutoff valve (see Fig- ure 15).
2.Pressurize supply piping system by ei- ther using compressed air or opening propane supply tank valve.
3.Check all joints from propane supply tank to manual shutoff valve (see Fig- ure 15). Apply mixture of liquid soap and water to gas joints. Bubbles form- ing show a leak.
4.Correct all leaks at once.
Closed
Figure 15 - Manual Shutoff Valve
Propane | Manual Shutoff Valve |
| |
Supply Tank |
|
Control Valve Location
Figure 16 - Checking Gas Joints
12 | 104675 |
