eWhen the condensate box is heated to 140 degrees F at the B3 probe, 220 VAC is sent from terminal 5 of connector X12 to the condenser valve (Y1) until the temperature drops.
fWhen the timer counts to 0 or the core temp probe (B10) reaches the set amount the cycle ends.
4With the combi in the Hot Air 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 Hot Air 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
•NOTE: If the 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)
•If the combi fan is in the normal setting 220 VAC is sent from terminal 5 on connector X11 through the normally closed auxiliary contacts of contactor K57 to the coils of contactor K56 and contactors K55.1 for the upper motor and K55.2 for the lower motor
◊The K56 contactor closes sending 220 VAC through the Q56.1 overload to the motors.
◊The K55.1 contactor closes completing the high speed circuit to the upper motor and the upper motor turns at a high speed.
◊The K55.2 contactor closes completing the high speed circuit to the lower motor and the lower motor turns at a high speed
◊The normally closed auxiliary contacts of K55.1, K55.2 and K56 open preventing the K57 contactor from energizing.
•If the combi fan is in the reduced setting 220 VAC is sent from terminal 6 on connector X11 through the normally closed auxiliary contacts of contactors K55.1, K55.2 and K56 to the coil of contactor K57
◊The K57 contactor closes
(a)220 VAC is sent through the Q57.1 thermal overload to the motor and the upper motor turns at a reduced speed.
(b)220 VAC is sent through the Q57.2 thermal overload to the motor and the lower motor turns at a reduced speed.
◊The normally closed auxiliary contacts of K57 open preventing the K55 and K56 contactors from energizing.
•For the first 2 minutes 220 VAC is sent from terminal 4 on connector X11 through the normally closed auxiliary contacts of contactor K5 to the K50 contactor coil
◊K50 contactor closes and the motor turns CW
◊The normally closed auxiliary contacts on K50 open preventing the K5 contactor from energizing.
•For 15 seconds the motor is
