What To Expect From The Model 315I; Ice; Storage; Run Time - Sub-Zero 315I Technical Service And Parts Manual

Theory of Operation
Model 315I (UC Ice Maker)

WHAT TO EXPECT FROM THE MODEL 315I

The model 315I will release a batch of eight ice cubes approximately every thirty minutes. At the same time the
cubes fall into the bin, water will be filling the reservoir and carrying the mineral impurities down the drain.

Ice

1"
The ice cubes are tapered cylinders approximately 1-
1/4" in diameter at the widest end; tapered down to 1"
at the other end; and are 1-1/8" high. (See Figure 3-6)
When the machine is adjusted properly, there should be
a 1/4" indentation in the base of the cube. The cubes
1/4"
will appear wet when fresh, which is normal. The cubes
1-1/8"
may also develop frost on the outside and look cloudy,
this is also normal. (The frost will disappear when liq-
uid is poured over the cubes.)

Storage

1-1/4"
The ice storage bin is not refrigerated. Instead, it is
heavily insulated, much like an ice chest or picnic cool-
Figure 3-6. Proper Cube Dimensions
er. If the ice bin were refrigerated, the ice would freeze
together into one large cluster of ice and would begin to
evaporate. This would yield ice that is of very poor
quality and would be very difficult to remove from the
machine.
The model 315I will continue to operate until the ice
builds up high enough to contact the bin thermostat
sensor tube, then it will shut off. (See Figure 3-7)
NOTE: The model 315IP will continue to pump the
water from the melted cubes even when the unit is off.
The pump will only be on for a few seconds.

Run Time

The amount of time that the model 315I will run to
replace melted ice (without the door being opened) is
approximately two hours per day. The amount of time
that the ice machine will run to replace ice removed
during use will depend upon how much ice is removed,
how often ice is removed, how clean the ice machine is
and how hot the ambient air and water supplied to the
ice machine are. An empty ice bin will usually take
Figure 3-7. Ice Bin Storage Level
twenty-four to thirty-six hours to refill.
3-6
#3757320 - Revision B - August, 2005