Southbend P32D-171 - Manual (Page 7)

OWNER’S MANUAL 1199790 REV 0 (6/14) PAGE 7 OF 46
I NFRARED B ROILER
G AS S UPPLY
Southbend cooking equipment is design-certified for operation on natural or propane gases. Southbend cooking
equipment is shipped configured and adjusted for the type of gas specified by the purchaser, which is indicated on the
serial plate (see Figure 1. Connect the Southbend cooking equipment ONLY to the type of gas for which it is configured
and adjusted.
Free-standing broilers (170, 171, and 270) have a 3/4” NPT rear male gas connection.
The broiler sections are design-certified for operation on natural or propane gases. For natural gas, the regulator is set to
9.963 mbar (4” W.C.). For propane gas, it is set to 24.909 mbar (10” W.C.).
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 Z223.1, Natural Gas Installation
Code, CAN/CGA-B149.1, or the Propane Installation Code CAN/CGA-B149.2, as applicable.
If using a flexible-hose gas connection, the I.D. of the hose must not be smaller than the connector on the unit and
must comply with ANSI Z21.69. An adequate means of restraint to prevent undue strain on the gas connection must be
provided as outlined in the installation section of this manual.
An adequate gas supply is imperative. Undersized or low pressure lines will restrict the volume of gas required for
satisfactory performance. Fluctuations of more than 25% on natural gas or 10% on propane gas will create problems
and affect burner operating characteristics. A 1/8” NPT pressure tap is located on the manifold to measure the manifold
pressure (See Figure 3). The supply line to the unit should be no smaller than the inside diameter of the pipe on the unit to
which it is connected.
To ensure optimum unit operation the pressure in the main supply line, when all units are operating simultaneously, should
not drop below 17.436 mbar (7” W.C.) for natural gas and 27.4 mbar (11” W.C.) for propane gas.
S PECIFICATIONS
E
LECTRICAL
S
UPPLY
Free-standing models (170, 171, and 270) units are wired standard 120V (60Hz single-phase AC). 120V models have
a 7-foot (2134 mm) power cord with a grouded plug. Optional units wired for 208/240V power and have a junction-box
located behind the blower switch for connecting wires to a single-phase 208/240V source. Blower motor requires 1 amp.
An electrical diagram is located behind the air-intake filter on free-standing models (see Figure 1).
An electrical diagram for oven base broilers is located on the rear of the oven.
The appliance, when installed, must be electrically grounded in accordance with local codes, or in the absence of local
codes, with the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.2, as applicable. An
electrical diagram is located on the rear of the oven, near the motor.
F REE S TANDING B ROILERS