Installation
11
Utility Connections
PRESSURE REGULATION AND TESTING
The gas pressure to the appliance must be rated
for 7” W.C. for natural gas and 12---14” W.C. for
propane gas for each unit while the burners are
on. A sufficient gas pressure must be present at
the inlet to satisfy these conditions.
Each unit has been adjusted at the factory to oper-
ate with the type of gas specified on the rating
plate attached to the right side of the unit.
Each oven is supplied with a regulator to maintain
the proper gas pressure.
The regulator is essen-
tial to the proper operation of the oven and
should not be removed.
It is preset to provide the
oven with 3.5” W.C. (0.87 kPa) for natural gas and
10.0” W.C. (2.50 kPa) for Propane while the flame
is on.
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)
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 unit, gas lines should be
thoroughly purged of all metal filings, shavings,
pipe dope, and other debris. After connection, the
unit should be checked for correct 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/CGA-
B149.1
or the
Propane Installation Code, CAN/
CGA-B149.2
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 unit, please contact your local
distributor. If you do not have a local distributor,
please call Blodgett Combi at 0011-802-860-3700.