Convotherm Mini Combi with Easy Touch, Service And Parts Manual

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• The alarm sounds until the operator opens the door.
• The Retherm cycle begins and the process starts at 6-b again until the Cook
timer counts to 0.
7 With the combi in clean mode
a
220 VAC is sent from terminal 4 on connector X12 to the injector solenoid (Y4)
for 40 seconds closing injection pressure switch (S3) to prove water supply is
open.
b 220 VAC is sent from terminal 3 connector X13 to the rinse solenoid (Y21) for 15
seconds and terminal 6 connector X13 to clean pump (Y23) for 9 seconds to
prime the cleaning pumps.
c For 10 minutes
• The fan circuit is energized
◊ Voltage is sent from terminals 7 and 9 on connector X14 on the Control
Board to the terminals S and R respectively on the AC drive board for 2
minutes.
(a)
The AC drive board ramps up the oven fan motor (M1) Clock wise for
2 minutes.
◊ Voltage is removed from the AC Drive for 15 Seconds
◊ Voltage is sent from terminals 7 and 8 on connector X14 on the Control
Board to terminals S and F respectively on the AC drive board for 2
minutes.
(a) The AC drive board ramps up the oven fan motor (M1) Counter-clock
wise for 2 minutes.
◊ If Voltage is sent from terminal 10 on Connector X14 on the control board
to terminal M on the AC drive board the fan will turn in reduced speed.
• The hot air heat circuit is energized
◊ 220 VAC is sent from terminal 3 of connector X12 on the Control Board
(A10) to the coil of Contactor K4 until the cabinet reaches the set
temperature (97 C) as sensed at probe B6.
(a)
The contactor K4 closes and 220 VAC is sent to the element (E4)
• The steam circuit is energized
◊ 220 VAC is sent from terminal 4 of connector X12 on the Control Board
(A10) to the coil of the Y4 solenoid allowing water to be thrown against
the element for 25 seconds every 40 seconds.
d 220 VAC is sent from terminal 6 connector X13 to clean pump (Y23) for 7
seconds (3 times)
e For 10 minutes
• The fan circuit is energized
◊ Voltage is sent from terminals 7 and 9 on connector X14 on the Control
Board to the terminals S and R respectively on the AC drive board for 2
minutes.
(a) The AC drive board ramps up the oven fan motor (M1) Clock wise for
2 minutes.
◊ Voltage is removed from the AC Drive for 15 Seconds
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