Input Current Control - Daikin FTXL20G2V1B Service Manual

Control Specification
3.5

Input Current Control

Outline The microcomputer calculates the input current during the compressor is running, and sets the
frequency upper limit from the input current.
In case of heat pump model, this control which is the upper limit control of the frequency takes
priority to the lower limit of control of four way valve operation compensation.
Detail
Frequency control in each zone
Stop zone
Š After 2.5 seconds in this zone, the compressor is stopped.
Drooping zone
Š The upper limit of the compressor frequency is defined as operation frequency – 2 Hz.
Š After this, the output frequency is pulled down by 2 Hz every second until it reaches the keep
Keep zone
Š The present maximum frequency goes on.
Reset zone
Š Limit of the frequency is canceled.
„ RXL20-35G2V1B
„ RXL20G2V1B9
Limitation of current drooping and stop value according to the outdoor temperature
Š The current droops when outdoor temperature becomes higher than a certain level
40
zone.
Cooling
(A)
(A) Normal mode
ECONO mode
(A) Normal mode
ECONO mode
Cooling
(A)
(A) Normal mode
ECONO mode
(A) Normal mode
ECONO mode
(depending on the model).
Compressor Stop
20 class
Heating Cooling
9.25
7.25 8.25 10.0
3.25
6.5 7.5 9.0
2.5
Heating
9.25
8.25
3.25
7.5
2.5
SiENBE04-925_A
Stop Zone
Drooping Zone
Keep Zone
Reset Zone
(R4304)
25 class 35 class
Heating Cooling
14.25 20.0
10.5 10.0
4.5 7.0
9.5 9.0
3.5 6.0
Function and Control
Heating
15.0
10.5
14.0
9.5