Wolf Sub-Zero ICB400 Series Service Manual page 32

International W ine Storage Series
International W ine Storage Series
Electronic Control System
(ICB400)
(ICB400)
Temperature Log Recall Mode
The electronic control system is equipped with a temperature history data storage system. This system logs/stores
the average temperature of each individual thermistor every four hours, along with any event indicators (explained
later in this section), that may have occurred. These four-hour periods are referred to as "indexes". Up to 64 index-
es can be stored for each compartment, making it possible to observe the preceding ten days, sixteen hours of the
unit's temperature history (each index equals 4 hour temperature average; 4 hours X 64 indexes = 10 days, 16
hours). After 64 indexes are stored, each new index will bump the oldest index. Index number "1" being the most
recent four-hour temperature average and index number "64" being the oldest. Accessing this temperature history
data so it can be viewed on the display is accomplished by initiating Temperature Log Recall Mode.
To initiate the Temperature Log Recall Mode, the unit must be ON. Now, press and hold the desired compartment
WARMER key, then press the POWER key, then release both keys (See Figure 3-36). The left display window will
show average compartment thermistor temperature and in the right display window will be the index number. The
first index number will be "1", indicating the most recent four-hour temperature average.
Figure 3-36. Initiating Temperature Recall Mode: Press WARMER Key and POWER Key
(First Reading is Latest Average Temperature with Index #1 Displayed)
To toggle up through the indexes (from 1 to 64), press the same WARMER key in multiple key strokes (See Figure
3-37). To toggle down through the indexes (from 64 to 1), press the corresponding COLDER key in multiple key
strokes (See Figure 3-38).
Figure 3-37. Toggle UP Through Indexes, Press WARMER Key in Multiple Key Strokes
Figure 3-38. Toggle DOWN Through Indexes, Press COLDER Key in Multiple Key Strokes
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7011544 - Revision A - November, 2008