SiBE041525F
Control Specification
Functions and Control
30
3.3.3 Four Way Valve Operation Compensation
Outline
At the beginning of operation as the four way valve is switched, the pressure difference to
activate the four way valve is acquired when the output frequency is higher than a certain fixed
frequency, for a certain fixed time.
Detail
Starting Conditions
1. When the compressor starts and the four way valve switches from OFF to ON
2. When the four way valve switches from ON to OFF during operation
3. When the compressor starts after resetting
4. When the compressor starts after the fault of four way valve switching
The lower limit of frequency keeps
A
Hz for
B
seconds with any conditions 1 through 4 above.
When the outdoor temperature is above
C
°
C in heating, the frequency decreases depending on
the outdoor temperature.
3.3.4 3-Minute Standby
Turning on the compressor is prohibited for 3 minutes after turning it off.
(The function is not activated when defrosting.)
3.3.5 Compressor Protection Function
When turning the compressor from OFF to ON, the upper limit of frequency is set as follows.
(The function is not activated when defrosting.)
20/25/35 class
50/60/71 class
Cooling
Heating
Cooling
Heating
A
(Hz)
62
48
B
(seconds)
50
70
C
(°C)
50
15
20/25/35 class
50/60/71 class
A
(Hz)
40
52
B
(Hz)
54
68
C
(Hz)
72
80
D
(seconds)
180
300
E
(seconds)
420
200
F
(seconds)
180
460
(sec.)
Time
(R13528)
(Hz)
Frequency
C
B
D
E
F
A
Summary of Contents for FTX20K2V1B
Page 12: ...SiBE041525F 1 List of Functions Part 1 List of Functions 1 Functions 2...
Page 15: ...SiBE041525F Specifications 4 Part 2 Specifications 1 Specifications 5...
Page 16: ...Specifications SiBE041525F 5 Specifications 1 Specifications See corresponding databook...
Page 51: ...SiBE041525F Remote Controller 40 Part 5 Remote Controller 1 Remote Controller 41...
