Maytag Built-in Refrigeration, Руководство пользователя

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when refrigerator usage is at maximum, the system is defrosting and cannot provide the
cooling needed to maintain optimum temperatures.
With a preemptive adaptive defrost, the system looks forward and anticipates usage
patterns to avoid defrosting at a time that may not be best. The control tracks information
about how the owners use the refrigerator. The refrigerator has learned that between four
and seven in the afternoon there are a large number of door openings. A large number of
door openings translates to a high use period. If the system identifies that a defrost is
scheduled to happen around five-thirty, it must make a decision. Either perform the
defrost at 3 PM, before the high use period, or wait until 8 PM after the high use period.
The decision is made by the controller and will be based on the time elapsed since the last
defrost, the measured temperatures and the usage since the last defrost. The end result is a
defrost cycle happening when it least likely to affect the life of the freezer contents.
Another way to prevent damaging temperature swings is to lower the temperature of the
freezer contents below normal before a defrost cycle is started. If the contents are cooler
than normal before the defrost cycle begins, there is less chance that the outer layers will
thaw during the defrost cycle.
The Jenn-Air
®
Luxury™ Series of refrigerators looks ahead and before starting defrost
provides maximum cooling to the freezer compartment. The result of the maximum
cooling period is lower freezer temperature. With a lower starting temperature, the
defrost can take place and overall freezer temperature may rise only one degree above
normal. This is in comparison to other refrigeration products that may raise ten or more
degrees during defrost.
By providing defrost only when needed and sub-cooling before defrost , the Jenn-Air
®
Luxury ™ refrigerator helps protect the owner’s investment in fine groceries and allows
them to make purchases at their convenience instead of on demand.
Cooling Performance that Matches the Needs
Most refrigeration products run at two speeds. One of the speeds is high and the other is
off. While this has been a suitable technology for many years, the need to conserve
energy has recently become more important.
0%
20%
40%
60%
80%
100%
120%
5
30 55 80 10
5
13
0
15
5
18
0
Time (Minutes)
Capacity
Conventional
Compressor
Variable Speed