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Installation
16
Gas Connections
PRESSURE REGULATION AND TESTING
The gas pressure to the appliance must be rated
for each appliance while the burners are on. A sufĆ
ficient gas pressure must be present at the inlet to
satisfy these conditions. Refer to the table below
for correct gas pressure.
Each appliance has been adjusted at the factory
to operate with the type of gas specified on the ratĆ
ing plate.
Each oven is supplied with a regulator to maintain
the proper gas pressure. The regulator is essenĆ
tial to the proper operation of the oven and
should not be removed.
DO NOT INSTALL AN ADDITIONAL REGULATOR
WHERE THE UNIT CONNECTS TO THE GAS
SUPPLY UNLESS THE INLET PRESSURE IS
GREATER THAN 14" W.C. (1/2 PSI) (37mbar).
The oven and its individual shutoff valve must be
disconnected from the gas supply piping system
during any pressure testing of that system at test
pressures in excess of 1/2 psig (3.45kPa).
The oven must be isolated from the gas supply
piping system by closing its individual manual
shutoff valve during any pressure testing of the
gas piping system at test pressures equal or less
than 1/2 psig (3.45kPa).
Prior to connecting the appliance, gas lines
should be thoroughly purged of all metal filings,
shavings, pipe dope, and other debris. After conĆ
nection, the appliance must be checked for corĆ
rect gas pressure.
U.S. and Canadian Installations
Installation must conform with local codes, or in
the absence of local codes, with the National Fuel
Gas Code, NFPA54/ANSI Z223.1-Latest Edition,
the Natural Gas Installation Code CAN/CGAĆ
B149.1 or the Propane Installation Code, CAN/
CGAĆB149.2 as applicable.
General Export Installations
Installation must conform with Local and National
installation standards. Local installation codes and/
or requirements may vary. If you have any questions
regarding the proper installation and/or operation of
your appliance, please contact your local distributor.
If you do not have a local distributor, please call
Blodgett Combi at 0011Ć802Ć860Ć3700.
GAS PRESSURE
Gas
T
Inlet
P
Orifice Size at Sea Level Manifold Pressure
Type Pressure
Hot Air Steam Hot Air Steam
BCXĆ14G
Natural 7-14" W.C. .0531" dia .042" dia 3.5" W.C. 3.5" W.C.
Propane 12-14" W.C. .032" dia .026" dia 10.0" W.C. 10.0" W.C.
BXĆ14G and CNVXĆ14G
Natural 7-14" W.C. .0531" dia - 3.5" W.C. -
Propane 12-14" W.C. .032" dia - 10.0" W.C. -