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SiUS041501E
Control Specification
Function and Control
38
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.)
09/12 class
RKN18NMVJU
RXN18NMVJU
RK(X)18NMVJU
24 class
Cooling
Heating
Cooling
Heating
A
(Hz)
40
54
48
B
(seconds)
60
70
C
(°C)
10
15
(°F)
50
59
(sec.)
Time
(R13528)
(Hz)
Frequency
C
B
D
E
F
A
09/12 class
RKN18NMVJU
RXN18NMVJU
RK(X)18NMVJU
24 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
Summary of Contents for FTKN09NMVJU
Page 12: ...SiUS041501E 1 List of Functions Part 1 List of Functions 1 Functions 2...
Page 59: ...SiUS041501E Remote Controller 48 Part 5 Remote Controller 1 Cooling Only 49 2 Heat Pump 51...
Page 65: ...SiUS041501E Service Diagnosis 54 5 13 Power Module Check 100...
Page 132: ...Revision History Month Year Version Revised contents 03 2015 SiUS041501E First edition...