Diagram 5; Mounting On Drink Dispensers; Electrical Circuit; Diagram 6 - Cornelius 500 SERIES Service Manual

2 .
3.
WATER
' 4
DISTRIBUTOR
HOLES
ILL025
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Diagram 5
Check the refrigerant circuit by mak-
ing sure that the condenser fan is
running. (This will be evident by air
noise.) Is the compressor running?
(Feel the casing for vibration.) Is the
evaporator getting cold.
Check bin-harvest switch operation.
(See procedure in manual).
ELECTRICAL CIRCUIT SEQUENCE OF
DPERATION
An L.E.D. digit display mounted on the solid
state control board will show a status
number 0, 1,
2, 4,
& 6 and a decimal point
to indicate what is happening in the
operation of the unit.
The electrical sequence of operation you will
see on the digit display for
a
normal ice
making cycle will be as follows:
The status number 0 will be shown telling
you the unit is making ice. The solid state
control DELAYS the start of the water pump
until the evaporator temperatures reaches
20° F. Approximately six minutes after the
start up in the freeze cycle a decimal point
will appear to the lower right of the "0" to
tell you that the evaporator sensor has been
switched on. After the evaporator
temperature has pulled down low enough for
the correct amount of ice to be on the
evaporator, the decimal point will begin t o
flash and stay flashing for approximately 20
seconds. If evaporator stays below the set
number "1
"
on the digit display will indicate
that the machine is in its harvest cycle with
the hot gas valve open. The water pump
continues to operate and the water dump
solenoid valve is now open. The water
pump shuts off approximately 15 seconds
later after the water reservoir is pumped out.
point, the harvest cycle will start. A
PLEASE NOTE;
During the freeze cycle in
low ambient condition the condenser fan
motor will be cycled on and off throygh the
condenser sensor and solid state control
board. The fan cycling pressures in relation
to the temperatures sensed will be
approximately 180# for cut out and 230#
for cut in of the fan motor.
I
Diagram 6
6