Astria Polaris42ZEN Installation Instructions Manual - Page 11

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CONNECTING GAS LINE

Codes require a shut-off valve mounted in the

supply line. Figure 12 illustrates two methods

for connecting the gas supply. The flex-line

method is acceptable in the U.S., however,

Canadian requirements vary depending on

locality. Installation must be in compliance

with local codes.

These appliances are equipped with a gas flex

line for use (where permitted) in connecting the

unit to the gas line. A gas flex line is provided

to aid in attaching the direct vent appliance to

the gas supply. The gas flex line can only be

used where local codes permit. See Figure 12

for flex line description. The flex line is rated

for both natural and propane gas. A manual

shut off valve is also provided with the flex line.

The gas control valve is located under the

refractory cover in front of the burner.

To access the valve, lift out the center refractory

and remove the access cover (see Figure 13).

The control valves have a 3/8" (10 mm) NPT

thread inlet port.

Secure all joints tightly using appropriate

tools and sealing compounds (ensure propane

resistant compounds are used in propane

applications).

Turn on gas supply and test for gas leaks, us-

ing a gas leak test solution (also referred to as

bubble leak solution). NOTE: Using a soapy

water solution (50% dish soap, 50% water)

is an effective leak test solution but it is not

recommended, because the soap residue that

is left on the pies/fittings can result in corro-

sion over time. Never use an open flame to

check for leaks.

A. Light the appliance (refer to the lighting

instructions label in the control compartment

or in the Care and Operation Instructions).

B. Brush all joints and connections with the gas

leak test solution to check for leaks. If bubbles

are formed, or gas odor is detected, turn the

gas control knob to the "OFF" position. Either

tighten or refasten the leaking connection and

retest as described above.

C. When the gas lines are tested and leak free,

be sure to rinse off the leak testing solution.

Gas

Valve

3/8" Nipple

3/8" Union

3/8" Close Nipple

Figure 12 -

GAS CONNECTION

Figure 13 -

VALVE ACCESS

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Gas Flex Line Connector

3/8" NPT x 3/8"

1/2" x 3/8" Flare

Flare Fitting

Shut-Off Valve

3/8" Flex Tubing

1/2" x 3/8"

Reducer

3/8" Shut-Off Valve

Gas

Stub