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Sub-Zero 315I - Water System Operation; Electrical System Overview

Sub-Zero 315I
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Model 315I (UC Ice Maker)
Theory of Operation
3-3
#3757320 - Revision B - August, 2005
Water System
The water system provides and recirculates the water
for ice production. It also provides a means of
drainage. After the ice is produced, the water system
flushes the impurities and minerals that were in the
water, down the drain. During routine cleaning, the
water system will circulate the ice machine cleaning
solution. (See Figure 3-2)
Electrical System
Power for the refrigeration system and the water sys-
tem is provided by the electrical system. The electrical
system also controls the operational cycles of the ice
maker. The electrical schematic in figure 3-3 below
illustrates the electrical system of a model 315I during
the ice making cycle.
Spra
y
Jet
s
Wa
t
e
r T
ube
Reservoi
r
Circulating
(Spray)
Pump
Wa
t
e
r Inl
et
C
ube Molds
Inlet Water
Valve
Dr
a
i
n
W
ee
p
Hol
e
Figure 3-2. Water System (During Ice Making Cycle)
Figure 3-3. Electrical Schematic of Model 315I (During Ice Making Cycle)
NEUTRAL
LINE
115 / 60 / 1
CIRCUIT
SCHEMATIC
BIN LEVEL
CONTROL
TIMER
SWITCH
CUBE SIZE
CONTROL
SPRAY
PUMP
MOTOR
FAN
MOTOR
WATER
SOLENOID
HOT GAS
SOLENOID
OVERLOAD
RELAY -
CURRENT
COMPRESSOR
TIMER
MOTOR
L03
L04
L05
L02 L02 L02 L02 L02
L03
L04
1
S
S
M
R
C
OFF ON
1
3
NC
COMM
NO
1
2
3
L05

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