◊In the full mode (3 drops in the display) the Y2 valve will be energized continuously.
h When the timer counts to 0 or the core temp probe (B10) reaches the set amount the cycle ends and the steam generator reverts to the standby temperature of 190- degree F.
6With the combi in the Rethermalization mode with time on the timer, the door closed and the start switch is depressed
a The front display will include a lighted bar under the Retherm symbol
•When the heat circuit is energized the heat symbol will be energized
•The cooking mode symbol will be energized.
•The time display will invert and begin to count down.
bThe fan circuit is energized by the Control Board (A10) transmitting and receiving a signal from terminals 5,6,7 and 8 on connector X10 to terminals 3,4,5 and 6 of connector X28 on the Gas Board (A20)
cThe Gas board (A20) Transmits a signal from terminal 4 of connector X26 to the Motor Drive.
•The motor Drive Board sends a signal through the thermal switch in the motor from Terminal 5 and receives on terminal 6
•If the thermal switch is not open the Motor Drive Board (U10) sends 220 VAC 3 phase to the motor.
•The motor reverses direction every 120 seconds with a 15 second coast.
•NOTE: If the set temperature is less than 212 degrees F than fan will be pulsed on for 2 seconds every 60 seconds after the cabinet set temp (B6).
dThe steam generator heat circuit is energized. Steam production takes precedence in the Combi mode
•A signal is sent from terminal 8 of connector X24 on the Gas Board (A20) to terminal 4 of connector X2 on the Steam Power Burner and Fan Control (U21) selecting the set speed of the combustion blower.
◊When this speed is attained the signal is sent from terminal 2 of connector X2 on the Steam Power Burner and Fan Control (U21) to terminal 9 of connector X24 on the Gas Board (A20)
•A request for heat is sent from terminal 3 of connector X21 on the Gas Board (A20) to terminal 10 on connector X1 on the Steam Burner Control Module (N21)
◊24 VAC is sent from terminal 2 of connector X2 on the Steam Burner Control Module (N21) to the hot surface igniter (R20).
◊The gas valve is energized allowing gas and air into the burner chamber to be ignited by the hot surface igniter.
◊The Steam Burner Control Module (N21) senses at least 1.5 micro amps DC from the flame sensor (P1) at terminal 3 of connector X2 and sends a signal from terminal 2 of connector X1 to terminal 11 of connector X25 on the Gas Board (A20)
eAfter the bypass probe (B5) is satisfied then the hot air heat circuit is energized to increase the cabinet temperature to the setting.
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