Movincool Classic Plus 14, Service Manual

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ELECTRICAL SYSTEM
15
Relay Board
Control Box
DIP Switch
S1
CF
ST
OP
OPERA
TE
J9
Temperature Scale Display Switch
˚
C
˚
F
DIP Switch
Fan Mode Control Switch
STOP OPERATE
2. Control Box
A. Capacitors
The capacitors are used to temporarily
boost the power output available to the
fan motor and the compressor at start-up.
The specifications of each capacitor are
listed below:
CAPACITOR VOLTAGE CAPACITANCE
APPLICATION RATING ( µ f)
Fan Motor 370 7.5
Compressor 370 45
B. Relay Board
The Relay Board receives signals and
outputs from the control board that
contains a microprocessor. The relay
board contains the compressor, fan on
and fan mode (speed) relays. It also
contains a step-down transformer that
converts the line voltage (115 VAC) to 12
volts. This is then converted from AC to
DC and used for relay coil activation. The
12(DC) power is sent to the Control Panel
Assembly where it is further reduced to 5
volts for the system logic.
The relay board also contains the DIP-
Switch. The DIP-Switch is used to
change the Fan Mode operation from
Stop to Operate and change the Set Point
temperature display from ˚F to ˚C.
NOTE: The relay board must be serviced as a
complete assembly. It has only one serviceable
component, the fuse.
(a) Relay Board Fuse
NOTE: The relay board fuse is the only serviceable
component on the relay board assembly.
This fuse provides protection against
damage to the step-down transformer. It
must be replaced with the exact type of
fuse or an equivalent.
Fuse Specifications: 2/10A 250V

CAUTION: Failure to use the exact type of fuse
could result in damage to the unit and/or to com-
ponents. It will also void the warranty of the unit.
Compressor
Capacitor
Fan Motor
Capacitor
Terminal Block
Relay Board
Relay Board Fuse
DIP Switch
Relay Board Fuse