Repair manual

CTB and CTBR
3-3
INTELLIPLUS, INTELLIHOLD OR INTELLIRACK - 21448 REV E
Component Reference
NOTE: Refer to FIGURE 10 page 3-10 for compoĆ
nent locations.
1. MODEL SELECTOR SWITCH
2. DOOR SWITCH
3. CONTROLLER
4. AXIAL FAN
5. CONTACTOR
6. OVEN READY LIGHT
7. CONVECTION MOTOR
Operation
1. Power is delivered to terminals 1 & N of the
mode selector switch (1). If the mode selector
switch is made between L1 & terminal 1 N &
terminal 2, power goes to one terminal of the
door switch (2), terminal E1 of the controller (3)
and the axial fan (4).
2. When the door is closed, the door switch must
be closed sending power to the contacts of reĆ
lays E10 of K1, E11 of K2 and E6 of K3 in the
controller. If the controller is powered up and
set for hi or low speed then the contacts of E10
or E11 close sending power to the convection
fan (7).
3. If a temperature has been programmed into
the controller, the contacts within K1 close
sending power to the contactor (5) and the
oven ready light (6).
NOTE: The temperature probe has an ascendĆ
ing temperature coefficient.
NOTE: All components have one leg of power
as long as the appliance is turned on.
The only exception is the axial fan
which has both legs of potential power.