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Section 3 - Service and Repair
CLRCO2175
GENERAL
The
1.Ice Making and Refrigeration (Figure 2).
2.Ice Making and No Refrigeration (Figure 3).
3.Refrigeration and No Ice Making (Figure 4).
4.Ice Harvest/Water fill (No Refrigeration Possible) (Figure 5).
In addition, there are three sub modes of operation:
5.Off (Figure 6).
6.Water Fill - No Refrigeration (Figure 7).
7.Cleaning (No Refrigeration Possible) (Figure 8).
Review the following notes for general information before reading the schematics.
These are some additional general notes and exceptions:
•The controller has a
•When making ice, the controller reads liquid line temperature four minutes into the
•Once an
•There is a
•In order to maintain adequate refrigerator temperature, the unit will sometimes run in the refrigeration only mode, as shown in Mode 3, even if the ice bin sensor is calling for ice. At the end of each ice harvest, the controller checks the refrigerator sensor and if it is warmer than the higher of 42°F, or the
or below the sensor. However, after the first slab of cubes is harvested, the controller will follow the logic defined in 5 above and realizing the refrigerator is too warm, will continue in refrigeration only mode (3) until the requirement is satisfied. Thus, upon
•There will also be a water fill cycle after the ice bin has been “full” and then calls to make ice again. This can occur when the refrigerator side is off as shown in Mode 6, or when it is on, which is shown in Mode 8. If the refrigerator side is on, when the fill cycle initiates, it will remain on until the fill cycle is completed, even if the refrigerator sensor is satisfied.
•The controller has a
•There is no high limit
•Different from the earlier CLRCO2075, this unit uses two relays to control the refrigeration valves. This means that the valves will only be energized when needed.
•There is now a thermistor on the refrigerator evaporator that will sense the evaporator plate temperature. This will allow the unit to fully defrost based on temperature of the evaporator plate during the defrost modes.
Setpoint | Temperature |
|
38° | 42° or lower | ice |
38° | 45° | no ice |
55° | 55° | ice |
55° | 58° | no ice |
There is no fill cycle when
•When the initial