Panasonic CS-KE30NKU Technical & Service Manual page 38

Maximum Current Value Change Function
The maximum current value is changed to 14A (for CU-KE30NKU) or 17A (for CU-KE36NKU) to prevent power
breaker tripping. (It is set to 24A (in cooling) or 22A (in heating) when the unit is delivered from the factory.)
1. When the high load is given (Outside temperature is high in the cooling operation, or
NOTE
outdoor temperature is low in the heating operation), the capacity is reduced.
When the maximum current value change function is to be enabled, make sure to receive
the approval of the client.
2. The maximum capacity for cooling or heating operation is about as much as the rated
capacity.
Description of function
Example of operation for heating
Target
frequency
Frequency
Stops operation
• Operates at the target frequency at Point A and below.
• Stops increases to the frequency between Points A and B.
• Reduces the frequency by 1 Hz per 0.5 seconds when Point B is exceeded.
• Stops operation, and restarts it appoximately 5 minutes later, if Point C is
exceeded.
(May operate when sudden voltage fluctuations occur.
<Maximum Current Value Change Procedure>
(1) Remove the inspection panel.
Refer to Fig. 2 in "
(2) When the switch No.2 of the dip switch (SW01) on the control P.C.Board is turned ON,
the maximum current value change. (Fig. 4)
Max. Current Value
Dip Switch (SW01)
Switch No.2
CU-KE30NKU CU-KE36NKU
ON 14.0A
OFF 22.0A
Power Point C
Approx.3 minutes
Noise Reducing Control" for details.
17.0A
24.0A
< CU-KE30NKU >
Point B
Point A
< CU-KE36NKU >
Indicates trouble.)
Power lamp
SW01
Fig.4 Control P.C.Board
38
In cooling
operation
Current Value on
(25.0)
the Point C
Current Value
22.0
on the Point B
Current Value
21.6
on the Point A
In cooling
operation
Current Value on
(25.0)
the Point C
Current Value
24.0
on the Point B
Current Value
23.6
on the Point A
ON
1 2
Dip switch (SW01)
In heating
operation
(25.0)
22.0
21.6
In heating
operation
(25.0)
23.5
23.1