Alto-Shaam Vector Series User Manual

The Chamber(s) do not Heat—Heater Element
Line Voltage (SSR is Energized)
How the heating
element line voltage
works
The heating elements require two phases of line voltage to operate. One phase
originates at the main disconnect switch and is connected through a terminal
board and then directly to the heating element. The second phase originates at
the main disconnect switch and is connected through a terminal board, circuit
breaker, chamber high limit switch and then to a solid state relay (SSR). The SSR
controls the on time of the second phase of line voltage to the heating element.
Before you begin
▪ Read and follow the steps described in the topic The Chamber(s) do not Heat—
Solid State Relay (SSR) Control Voltage.
▪ At the main disconnect switch, determine which phase connects directly to the
heating element, and which phase connects to the L1 terminal of the SSR.
▪ Remove the service panel.
WARNING: Electric shock and arc flash hazard.
Use caution when measuring line voltage.
Wear Personal Protective Equipment (PPE).

NOTE: The chamber blower fans must operate if the blower fans do
not operate. See topic Chamber Blower Fans do not Operate.
NOTICE
Do not operate the oven in a cooking mode for an extended
period of time with the top panel removed. Damage to the
electronics may occur without adequate cooling airflow.
An auxiliary fan must be used if the oven will be operated in a
cooking mode for an extended period of time with the top
panel removed.
At the main disconnect switch, measure the AC voltage across
the two phases for the heating element that is not working
Does the voltage correspond to the voltage printed on the
serial number tag?
No
Determine the cause of the
incorrect line voltage. Repair or
replace as required.
Yes
Insert one meter lead into the wire connector at the heating
element. At the main disconnect switch, place the second
meter lead on the phase that connects to the SSR. Measure the
AC voltage across the two phases.
Does the voltage correspond to the voltage printed on the
serial number tag?
No
Repair or replace the wiring for
the phase that connects directly to
the heating element.
Yes

Alto-Shaam Vector Series Specifications

General

Brand	Alto-Shaam
Model	Vector Series
Category	Oven
Language	English