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Control Specification
SiBE041102_A
28
Function and Control
3.6
Freeze-up Protection Control
Outline
During cooling operation, the signal sent from the indoor unit controls the operating frequency
limitation and prevents freezing of the indoor heat exchanger. (The signal from the indoor unit is
divided into zones.)
Detail
The operating frequency limitation is judged with the indoor heat exchanger temperature.
3.7
Heating Peak-cut Control
Outline
During heating operation, the indoor heat exchanger temperature determines the frequency
upper limit to prevent abnormal high pressure.
Detail
(R14841)
Reset zone
Indoor heat exchanger
thermistor temperature
Up zone
Keep zone
Dropping zone
Stop zone
0˚C
7˚C
9˚C
11˚C
13˚C
Zone
Control
Stop zone
When the temperature reaches the stop zone, the compressor stops.
Dropping zone
The upper limit of frequency decreases.
Keep zone
The upper limit of frequency is kept.
Up zone
The upper limit of frequency increases.
Reset zone
The upper limit of frequency is canceled.
A
(°C)
61
B
(°C)
55
C
(°C)
52
D
(°C)
50
E
(°C)
45
Indoor heat exchanger
thermistor temperature
Stop zone
Dropping zone
Keep zone
Up zone
Reset zone
(R14842)
D
˚C
C
˚C
B
˚C
A
˚C
E
˚C
Содержание FTXN25KEV1B
Страница 11: ...SiBE041102_A List of Functions 1 Part 1 List of Functions 1 Functions 2...
Страница 13: ...SiBE041102_A Specifications 3 Part 2 Specifications 1 Specifications 4...
Страница 109: ...SiBE041102_A Indoor Unit Removal Procedure 99 5 Remove the horizontal blade Step Procedure Points R11626...
Страница 157: ...Revision History Month Year Version Revised contents 03 2011 SiBE041102 06 2011 SiBE041102_A Review of contents...