Convotherm Mini Combi with Easy Touch, Руководство по обслуживанию и запасным частям

Страница: 63 / 75

.CLEVELAND RANGE Mini Combi
For
TIM HORTENS
SEQUENCE OF OPERATIONS
When using these instructions refer to the
included
wiring schematic.
1
When incoming power (220 VAC) is connected to the combi, 220 VAC is sent
a
To the normally open contacts of the Safety Contactor (K0)
b Through the 3A fuse (F1.1) to
• The 12 vdc power supply (G1)
◊ 12vdc is sent to terminals 1 and 2 of the Easy Touch Power Switch
◊ 12vdc is sent to Terminal 10 of connector X13 on the Control Board
(A10)
• Through the oven high limit (B7) and another 3 amp fuse (F10), to terminal 1
of the connector X12 on the control Board (A10).
c With 12 VDC to the Control Board (A10), the Operation Board (A11) is
energized
2 When the ON/OFF is depressed 12VDC is sent from terminal 3 and 4 of the on/Off
switch to to terminals 3 and 4 of Connector X10
a
The display will show Easy Touch and the Tim Hortons.
b 12 VDC is sent from terminals 1 and 2 of connector X10 on the control Board
(A10) to the cooling fans (M3.1 and M3.2)
c 12VDC is sent from terminal 9 of connector X13 on the Control Board (A10) to
energize the Humidity Valve Motor (M2)
• As the Humidity Valve Motor rotates 360 degrees the cam switch (S2) opens
and closes to set the position of the cam on the motor.
d 220 VAC is sent from terminal 5 of connector X12 of the control Board to the
Condenser Valve (Y1) for 30 seconds.
e 220 VAC is sent from terminal 2 of X13 on the Control Board to the coil of the
Safety Contactor (K0).
• 220 VAC is sent to the normally open contacts of the element contactor (K4).
• 220 VAC is sent to the AC Drive terminals L1 and L2
3 With the combi in the steam mode with time on the timer the door closed and the start
icon is depressed
a
The front display will include a Thermometer while the unit preheats.
b 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.
◊ 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.
62