Outdoor Fan Control - Panasonic U-8MF2E8 Service Manual

5. Outdoor Fan Control

5-1. Fan mode
These outdoor units utilize a DC fan motor that can be controlled in a maximum of 15 steps (15 modes).
However, fan modes 14 and 15 can only be used if high static pressure mode has been set.
* For information concerning EEPROM settings, refer to the field application functions.
The following table shows the maximum and minimum fan mode and fan forced mode for each unit.
Standard
Maximum value
High static
pressure mode
setting
Minimum value *
Fan forced mode
Silent mode
* For the sake of protecting temperature of the electrical parts, the minimum values of the fan mode may sometimes
increase in accordance with the ambient temperature or the amount of secondary current.
5-1-1. High Static Pressure Mode
The outdoor unit allows a high static pressure changing the settings.
The maximum permissible static pressure is 80Pa.
EEPROM setting in each outdoor unit
CODE : 8F
Setting No
0
1
2
3
4
5
6
However, maximum fan mode is upper limit.
Status of
heat exchanger
Condenser
temperature
Evaporator
temperature
Condenser
temperature
Evaporator
temperature
Control for fan crack prevention
Snowfall sensor control
Silent mode 1 (-3dBA)
Silent mode 2 (-5dBA)
Invalid (factory preset mode)
High static pressure mode
Never use
Never use
Never use
Never use
Never use
1 - 19
8hp
13
Ambient
13
> 10°C
Ambient
< _ 10°C
13
15
Ambient
15
> 10°C
Ambient
< _ 10°C
15
1
9
11
9
7
3WAY SYSTEM
Control Functions
10hp 12hp 14hp 16hp
13 13 12 12
13 13
12 12
13 13 13 13
15 15 12 12
15 15 12 12
15 15 13 13
1 1 1 1
9 8 7 7
10 9 8 8
8 10 9 9
7 9 8 8
1