Service manual

Overview of the cooling mode functions ESIE03–01
2–34 Part 2 – Functional Description
3
1
2
4
5
Different fan
speeds
The table below explains the meaning of L, H and HH fan speed.
L-tap starting
compensation
When the outdoor fan is operated from OFF to L-tap, the fan motor does not turn, because of lack of
starting torque. To avoid this, the fan motor operates at H-tap for the first 5 s after start-up, before
changing to L-tap.
Used input The fan starting control in cooling or dry keep mode uses the following inputs:
Fan operation
71 and 100 125
1 fan Upper fan (MF1) Lower fan (MF2)
OFF OFF OFF OFF
LLLL
HHHH
HH HH HH HH
5 s
H
L
OFF
Input
Connection on
indoor PCB
Connection on
outdoor PCB
Outdoor air temperature R1T — X4A