Panasonic U-4LE2E5 Service Manual & Test Run Service Manual page 24

4. Outdoor Unit Fan Control
5. Outdoor Unit Fan Control
The system entirely becomes to the silent mode by setting in the main outdoor unit.
EEPROM setting in main outdoor unit
CODE : 05
Setting No.
0
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
(*) Rated capacity is maintained under rated condition.
NOTE
When the setting is "external input necessary", this function works in either of the following way
short circuiting "SILENT" plug on the PCB.
1
-1 Change setting the outdoor unit EEPROM CODE: 78 to "01".
2
CODE: 78
Setting No.
0
1
-2 When setting in Quiet operation by the indoor unit address 1 remote controller (CZ-RTC5A / CZ-RTC5B):
2
*Regarding the method of setting Quiet operation, see the Operating Instructions provided with the
remote controller.
When the setting is "external input to PCB unnecessary", this function always works.
When the setting is "Capacity is given priority", this function is interrupted in the following conditions.
Cooling operation: Ambient temperature ≥ 38°C
Heating operation: Ambient temperature < 2°C
In case of selecting silent priority mode (more than "9" setting) in high load situation, the system has
possibility to stop to prevent high pressure cut.
Mode
Invalidity (Factory preset mode)
Capacity is given priority (*)
Capacity is given priority
Capacity is given priority
Capacity is given priority
Capacity is given priority (*)
Capacity is given priority
Capacity is given priority
Capacity is given priority
Silent is given priority (*)
Silent is given priority
Silent is given priority
Silent is given priority
Silent is given priority (*)
Silent is given priority
Silent is given priority
Silent is given priority
Input by indoor unit remote controller
Invalid (Factory preset mode)
Valid
Control Functions - Outdoor unit
External input to PCB
Necessary
Necessary
Necessary
Necessary
Unnecessary
Unnecessary
Unnecessary
Unnecessary
Necessary
Necessary
Necessary
Necessary
Unnecessary
Unnecessary
Unnecessary
Unnecessary
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2WAY VRF SYSTEM
Mini VRF SYSTEM
Control Functions
Silent effect
-1.5dB
-3dB
-5dB
-7dB
-1.5dB
-3dB
-5dB
-7dB
-1.5dB
-3dB
-5dB
-7dB
-1.5dB
-3dB
-5dB
-7dB