72
<5> Using Power Save
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Function description
Power Save is a function that regulates the compressor rotation count either daily or according to a specified period and
according to a preset time interval or regulated capacity. Use this function when you want to inhibit electric power use.
A typical scenario where Power Save can be used to inhibit the power consumption for water heating would be periods of
particularly heavy operating loads for air conditioning and other equipment, such as periods when large numbers of people
check in at a hotel or similar accommodation facility.
Approach to power save intervals and time periods
Specify intervals by using the Day Start Time as the delimiter. Note that this may not match the actual date. Refer to section
on "Unit Setting" (Installation Manual) for details.
You cannot set a time period that spans the Day Start Time.
Example 1) When the Day Start Time is 22:00 on August 1 and 2 and the time period is 22:00 to 08:00
The shaded (
Ŷ
) periods in the figure below indicate when Power Save is used.
Actual date
July 31
Actual date
August 1
Actual date
August 2
Actual date
August 3
0
4
8
12
16
20
0
4
8
12
16
20
0
4
8
12
16
20
0
4
8
12
Delimiter based
on the Day Start
Time
July 31
August 1
August 2
August 3
Example 2) When the Day Start Time is 12:00 on August 1 and 2 and the time period is 22:00 to 08:00
The shaded (
Ŷ
) periods in the figure below indicate when Power Save is used.
Actual date
July 31
Actual date
August 1
Actual date
August 2
Actual date
August 3
0
4
8
12
16
20
0
4
8
12
16
20
0
4
8
12
16
20
0
4
8
12
Delimiter
based on the
Day Start
Time
July 31
August 1
August 2
Power Save will not be implemented in the following situations:
If a system controller is connected
While Power Save is disabled
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