Operator`s manual

• Ignition module sends 24 VAC to the main (low) coil of the gas valve and gas
(2.2” W.C. natural gas, 4.0” W.C. L.P) is sent to the infrared burner.
• The spark ignites the gas.
• At least .5 micro amps D.C. is received at the module in 4 seconds or the ignition
module locks out and the alarm buzzer sounds.
• The K4 relay on the Relay and Motor Board closes and 24 VAC is sent from pin T11
on J2 (12-pin quick-connect) on the Relay and Motor Board to the high coil of the gas
valve and the gas pressure is increased (3.2” W.C. natural and 10.0” W.C. LP) to the
infrared burner.
• The K1 relay on the Relay and Motor Board closes after 5 second delay (allowing for
pilot ignition) sending 120 VAC from pin T6 on J2 (12-pin quick-connect) on the
Relay and Motor Board to the convection blowers.
• The unit continues to heat until 10 degrees of the PREHEAT set point is reached.
• If the measured temperature does not increase by 6 degrees every 2 minutes the
display will show “SHORTED PROBE” or “FAULTY HEATER” and an alarm
will sound.
3. Computer displays “READY” and sounds a series of beeps after reaching 10 degrees of the
set point. Oven may now be loaded with product and appropriate cooking program initiated.
• When the door is open, breaking contact between pins 4 and 5 on the programmable
controller, the display will show “DOOR OPEN” and the burner, convection blower
motors, lights and rotisserie drive motor will not operate.
• The drive can be advanced only when the door is open by depressing the jog button
located on the front of the rotisserie, making contact between pins 6 and 7 on J1 (15-
pin quick-connect) on the programmable controller. The rotisserie will advance at 3
RPM.
4. With the door closed, the computer begins the cooking mode
• The cook program tells the Relay and Motor Board to close the K5 relay and 120VAC
is sent to the primary of the light transformer.
• The secondary of the transformer sends 22.8VAC to the light energizing it. The lights
do not energize in the preheat mode.
• The cook program tells the Relay and Motor Board to close the K2 relay and 24 VAC
is sent from pin T9 on J2 (12-pin quick-connect) on the Relay and Motor Board to the
vent solenoid closing it. The vent will stay closed until the programmed temperature
set point is reached. Then it will open and close within 2 degrees of set point. NOTE:
THE VENT IS THE PRIMARY TEMPERATURE CONTROL DEVICE IN THE
COOK CYCLE-NOT THE BURNER.
• The Relay and Motor Board sends the appropriate voltage to the motor as programmed
(1RPM = 30 VDC, 2RPM = 57 VDC, 3RPM= 85 VDC).
• The motor turns the drive system at the proper RPM.
• The K3 relay closes sending 24 VAC through pin T12 on J2 (12-pin quick-connect) on
the Relay and Motor Board to the ignition module.
• Ignition module sends spark to the igniter.