SiUS042113E
Control Specification
Part 4 Functions and Control
67
3.6 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 the frequency and takes
priority over the lower limit control of four way valve operation compensation.
Details
Frequency control in each zone
Stop zone
After the input current remains in the stop zone for 2.5 seconds, 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 lowered 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.
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).
09/12 class
18 class
24 class
Cooling
Heating
Cooling
Heating
Cooling
Heating
A
(A)
13.0
13.0
20.0
20.0
20.0
20.0
B
(A)
11.5
12.0
16.25
18.25
18.0
19.25
C
(A)
10.5
11.0
15.25
17.25
17.0
18.25
Compressor Stop
Inp
u
t c
u
rrent
Dropping zone
Stop zone
Keep zone
Reset zone
(R23249)
A
(A)
B
C
Содержание FTXM-V Series
Страница 13: ...SiUS042113E Part 1 General Information 9 1 Applicable Models 10 2 Functions 11 Part 1 General Information...
Страница 16: ...SiUS042113E 12 Part 2 Specifications 1 Specifications 13 Part 2 Specifications...
Страница 96: ...Troubleshooting SiUS042113E 92 Part 6 Service Diagnosis Reference Check No 01 Refer to P 134...
Страница 147: ...SiUS042113E Check Part 6 Service Diagnosis 143 09 12 class 18 24 class 1 2 3 4 Multimeter R24538 1 2 3 4 Multimeter...
Страница 150: ...Check SiUS042113E 146 Part 6 Service Diagnosis 18 24 class R24539 DC DC W V U...
Страница 165: ...SiUS042113E Piping Diagrams Part 8 Appendix 161 1 2 Outdoor Unit RXM09 12VVJU RXM18VVJU 3D131979 3D132216...
Страница 166: ...Piping Diagrams SiUS042113E 162 Part 8 Appendix RXM24VVJU 3D132217...
Страница 171: ...SiUS042113E Operation Limit Part 8 Appendix 167 3 Operation Limit RXM09 12 18 24VVJU 3D133582A...
