Installation Comet Executive Gas
2-22
• More than 12” (3.0 kPa): This is a high
pressure gas supply. Installation of an
additional regulator is necessary:
1) The additional regulator must be
mounted according to the manu-
facturer’s specications.
2) Open the left endframe door and
measure the incoming gas pressure
to gas valve (Figure 2-20) to make
sure it is now in the proper range
(connect the manometer to the “in”
port on the gas valve, A).
3) When replacing the plug, use pipe
thread compound to avoid leaks.
Teon tape is not recommended.
For Manufactured Gas:
Contact the Factory Service Department.
Inspect Gas Piping
Required Tools
Leak detection equipment or
soap & water solution
Pipe wrench
Perform only when the unit is OFF
with power disconnected and COOL.
WARNING
Only qualied personnel
should adjust or service gas
controls or components.
It is essential to check all
internal and external gas
connections for leakage
before proceeding.
1. Make sure the external manual gas supply
valve is turned o and the power is turned
OFF at the main disconnect switch.
2. Prepare to inspect the piping using com-
bustible gas leak detection equipment or
a soap and water solution.
CAUTION
Be sure to check all unions
which may have loosened
during shipment.
3. Check and tighten all connections that may
have loosened during shipment or were
not properly secured during installation.
4. Turn on the gas supply. Check all internal
and external connections with combustible
gas leak detector, or apply a soap and water
solution to all joints to make sure there
are no leaks.
5. If a leak is found, turn o the gas supply.
Tighten the leaky connection.
6. Repeat Steps 4 and 5 until all joints are
tight and veried leak free.
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