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104675
UNVENTED PROPANE/LP GAS LOG HEATER
VANGUARD FLAME-MAX
®
WARNING: Test all gas pip-
ing and connections for leaks
after installing or servicing. Cor-
rect all leaks at once.
CHECKING GAS
CONNECTIONS
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.
INSTALLATION
Continued
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
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).
* Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See
Accessories, page 24.
** Minimum inlet pressure for purpose of input adjustment.
Figure 14 - Gas Connection
Gas Control
3" Minimum
A.G.A. Design-Certified
Manual Shutoff Valve
With 1/8" NPT Tap*
Approved Flexible
Gas Hose (if
allowed by local
codes)
Tee
Joint
Pipe
Nipple
Cap
Sediment
Trap
From External
Regulator (11" W.C.**
to 14" W.C. Pressure)
ON
POSITION
OFF
POSITION
Figure 15 - Manual Shutoff Valve
Open
Closed
Manual
Shutoff
Valve
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.
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.
Figure 16 - Checking Gas Joints
Control Valve Location
Propane
Supply Tank
Manual Shutoff Valve