INSTALLATION
WARNING: THESE PROCEDURES MUST BE FOLLOWED BY QUALIFIED PERSONNEL OR
WARRANTY WILL BE VOIDED.
GENERAL:
The installation must conform with local codes, or in the absence of local codes, with the National Fuel Gas
Code, ANSI Z223.1 - Latest Edition. Canadian installation must comply with CAN/CGA-B 149.1 Natural Gas
Installation Code, Code CAN/CGA-B 149.2 Propane Installation Code.
These models are design certified for operation on Natural or Propane gases.
The appliance should be connected ONLY to the type of gas for which it is equipped. All Southbend equipment
is adjusted at the factory.
NOTE: Check type of gas on serial plate.
Models: SCB-Series - serial plate located left front comer on bottom inside lower compartment.
Models: SCBC-Series - remove front control panel. Serial plate attached in the center on the compartment
front shield to unit.
NOTE: Each SCB-Series Broiler is a complete unit with an individual
W
NPT manifold across its entire width.
Units can be batteried by joining the unions at the ends of the manifolds. This manifold is not equipped
directly with a pressure regulator. However, the manifold must be connected with an adequately sized gas
appliance pressure regulator adjusted to supply a pressure to this manifold as marked on the serial plate; 6"
W.C. for natural gas and 10" W.C. for propane gas. In addition, the pressure regulator must meet the
following requirements:
1. The pressure regulator installed should be certified by a nationally recognized testing agency.
2. The regulator must have a maximum regulation capacity for the total connected load.
3. The regulator must have a pressure adjustment range to allow adjustment to the manifold pressure on the
appliance rating plate.
4. Unless the manifold pressure of all connected appliances is the same, a separate regulator must be supplied
for each unit(s) to indicate unit or units having differing manifold pressures.
5. If applicable, the vent line from the gas appliance pressure regulator shall be installed to the outdoors in
accordance with local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI Z23.1 -
Latest Edition. Canadian installation must comply with CAN/CGA-B 149.1 Natural Gas Installation Code,
Code CAN/CGA-B149.2 Propane Installation Code.
An adequate gas supply is imperative. Undersized or low pressure lines will restrict the volume of gas required for
satisfactory performance. A steady supply pressure, between 7" W.C. and 8" W.C. for natural gas and 11" W.C.
and 12" W.C. for propane gas is recommended. With all units operating simultaneously, the manifold pressure on
all units should not show any appreciable drop. Fluctuations of more than 25% on natural and 10% on propane
gas will create pilot problems and affect burner operating characteristics. Contact your gas company for correct
supply line sizes.
As an option, the unit may be supplied with a rear gas connection. The pipe size of this connection is one inch.
Unless otherwise specified, this connection is welded to the right side of the manifold.
NOTE: Each SCBC-Series Counter Broiler is a complete unit with an individual ¾” NPT supply connection at
the rear. An adequate gas supply is imperative. Undersized or low pressure lines will restrict the volume of gas
required for satisfactory performance. A pressure regulator, which is provided with each unit, is set to maintain
a 4" W.C. manifold pressure for natural gas and a 10" W.C. manifold pressure for propane gas. However, to
maintain these conditions the pressure on the supply line, when all units are operating simultaneously, should
not drop below 7" W.C. for natural gas or 11” W.C. for propane gas.
A 1/8” pressure tap is located on the manifold of each unit.
All pipe joints should be tested for leaks with a soap and water solution before operating the unit. The test
pressure should not exceed 14" W.C.
CAUTION:
THIS APPLIANCE 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 112 PSIG (3.45 kPa).
THIS APPLIANCE MUST BE ISOLATED FROM THE GAS SUPPLY PIPING SYSTEM BY CLOSING
ITS INDIVIDUAL MANUAL SHUTOFF VALVE DURING ANY PRESSURE TESTING OF THE GAS
SUPPLY PIPING SYSTEM AT TEST PRESSURES EQUAL TO OR LESS THAN 112 PSIG (3.45
kPa).
CHAR BROILERS
SECTION ONE — INSTALLATION
PAGE 2
Litho in U.S.A.
11-92
