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GAS COMBITHERM — INSTALLATION MANUAL #MN-28676
PG. 19
GAS SUPPLY & INSTALLATION REQUIREMENTS
®
COMBITHERM
LEAK TESTING
If a pressure leak test above 1/2 psi is to be
performed on the building supply gas piping, the
shut-off gas valve and oven inlet gas supply line
must be disconnected from the building supply
piping before conducting the pressure test. Failure
to do so may result in damage to the manual gas
valve, gas components in the oven, or both.
If any gas leak tests are to be conducted at pressures
equal to or below 1/2 psi, the manual gas shut-off
valve upstream of the oven must be turned off
before conducting the tests.
Leak testing of the internal oven piping system was
conducted before shipping the oven from the
factory. If additional testing is needed, it should
only be conducted at normal gas supply pressures.
If the testing is performed using combustible gas in
the piping, the leak checking should be done with a
soap solution (bubble checking).
T
he use of an electronic combustible gas leak detector
is helpful, however, this type of detector can
be oversensitive. Electronic detectors may indicate
false leaks from other sources which would not be
detected when checking with a liquid solution to
verify a no-hazard gas connection.
When starting the oven after initial installation, the
gas lines must be free of air. It may take up to 30
minutes to eliminate all air from the lines. If, after
this time there is no pilot, call for factory assistance.
GAS EXHAUST
The oven is not designed for direct connection to
a chimney vent system or for direct connection
to a horizontal exhaust system.
The oven must be installed under a ventilation
hood listed to ANSI/UL 705 (latest edition),
and the installation must be completed in
accordance with the ANSI/NFPA 96-1987,
Standard for Ventilation Control and Fire
Protection of Commercial Cooking Operations.
Oven operators should be instructed with regard
to the hazards of placing any material on top of
the oven that would obstruct the flow of flue
products out the opening of
the flue diverter. Operators
should also be instructed
with regard to the hazards of
hot flue gases and that any
material or items placed on
top of, or in front of the flue
defector could be damaged or
cause a fire hazard.
D A N G E R
NEVER USE AN OPEN
FLAME TO LEAK TEST.
D A N G E R
BEFORE STARTING THE
APPLIANCE, MAKE CERTAIN
YOU DO NOT DETECT THE
ODOR OF GAS.
IF THE ODOR OF GAS IS DETECTED:
• DO NOT attempt to light any appliance.
• DO NOT touch any electrical switches.
• Extinguish any open flame.
• Use a telephone OUTSIDE THE
PROPERTY & IMMEDIATELY
contact your gas supplier.
• If unable to contact your gas supplier,
contact the fire department.