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Using Power Save
▌
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 (■) periods in the figure below indicate when Power Save is used.
Actual date
July 31
0
4
8
12
16
Delimiter based
on the Day Start
July 31
Time
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 (■) periods in the figure below indicate when Power Save is used.
Actual date
July 31
0
4
8
12
16
Delimiter
based on the
Day Start
Time
Power Save will not be implemented in the following situations:
• If a system controller is connected
• While Power Save is disabled
Actual date
August 1
20
0
4
8
12
August 1
Actual date
August 1
20
0
4
8
12
July 31
Actual date
August 2
16
20
0
4
8
August 2
Actual date
August 2
16
20
0
4
8
August 1
Actual date
August 3
12
16
20
0
4
August 3
Actual date
August 3
12
16
20
0
4
August 2
Main
8
12
8
12
29
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