34
•
MN-35947
•
Rev 22
•
10/22
•
Combitherm® CT PROformance™ and CT Classic Series Installation Manual
Installation
GAS LEAK TESTING
If a pressure leak test above 1/2 psi (34.5 mbar) 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 (34.5 mbar), 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).
The 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 aft er 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, aft er this time there is
no heat, 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.
Oven operators should be instructed with regard to the
hazards of placing any material on top of the oven that
would obstruct the fl ow of fl ue products out the opening
of the fl ue diverter. Operators should also be instructed
with regard to the hazards of hot fl ue gases and that any
material or items placed on top of, or in front of the fl ue
defector could be damaged or cause a fi re hazard.
W A R N I N G
Never use an open flame or other ignition
sources to check for gas leakage. Failure to
do so may cause a fire or explosion and result
in serious injury or death.
DANGER
Explosion hazard. Before starting the
appliance, make certain you do not detect
the odor of gas.
If you smell gas:
• Shut off the gas supply immediately.
• Do not attempt to light any appliance.
• Do not touch any electrical elements.
• Extinguish any open flame.
• Evacuate the area.
• Use a telephone outside the property and
immediately contact your gas supplier.
• If unable to contact your gas supplier,
contact the fire department.
WARNING
DO NOT
obstruct or block exhaust flues
or attach any flue extension that may
impede proper burner operation, restrict
the exhaust fumes and cause negative
backdraft or the appliance to shut down.
Failure to do so may result in serious injury
or death.
GAS SUPPLY AND INSTALLATION
