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SiUS041501E
Control Specification
Function and Control
40
3.5
Input Current Control
Outline
The microcomputer calculates the input current while the compressor is running, and sets the
frequency upper limit based on the input current.
In case of heat pump models, this control is the upper limit control of frequency and takes priority
over the lower limit control of four way valve operation compensation.
Detail
Frequency control in each zone
Stop zone
After 2.5 seconds in this zone, the compressor is stopped.
Dropping zone
The upper limit of the compressor frequency is defined as operation frequency – 2 Hz.
After this, the output frequency is pulled down by 2 Hz every second until it reaches the keep
zone.
Keep zone
The present maximum frequency goes on.
Reset zone
Limit of the frequency is canceled.
RK(X)N series
RK(X) series
Limitation of current dropping and stop value according to the outdoor temperature
The current drops when outdoor temperature becomes higher than a certain level (depending
on the model).
RK(X)N09NMVJU
RK(X)N12NMVJU
Cooling
Heating
Cooling
Heating
A
(A)
7.75
10
8.5
10
B
(A)
6.75
8.5
7.5
8.5
C
(A)
5.75
7.5
6.5
7.5
RKN18NMVJU
RXN18NMVJU
RK(X)N24NMVJU
Cooling
Heating
Cooling
Heating
Cooling
Heating
A
(A)
9.25
—
13
18
B
(A)
8.5
—
10
9
12
14.5
C
(A)
7.5
—
9
8
11
13.5
RK(X)09NMVJU
RK(X)12NMVJU
RK(X)18NMVJU
RK(X)24NMVJU
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
A
(A)
12
12
18
18
B
(A)
6.75
8.5
7.5
8.5
10
10.75
12
11.5
C
(A)
5.75
7.5
6.5
7.5
9
9.75
11
10.5
Compressor Stop
Input current
Dropping Zone
Stop Zone
Keep Zone
Reset Zone
(R14723)
A
(A)
B
C
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...