CONTROL
18
During heating and DHW operations, the four-way valve is on; during cooling and defrosting operations, the four-way
valve is o.
4.6.6 Electronic expansion valve control
The position of the electronic expansion valve (EXV) is controlled in steps from 0 (fully closed) to 480 (fully open).
• At switch-on
The EEV first closes fully, then moves to the standby position.
After a few seconds, the EEV moves to an initial operating position, which is determined according to
outdoor ambient temperature.
After a few minutes, the EEV is controlled according to suction and discharge overheating temperature.
After a few minutes, the EEV is controlled according to overheating and discharge temperature and
compressor speed.
• When the outdoor unit is in standby:
The EEV is in standby
• When the outdoor unit stops:
The EEV first closes fully and then moves to standby.
4.6.7 Outdoor fan control
The outdoor fan speed is controlled as shown in Table
Fan speed index
Fan speed (rpm)
2,1-3.1-4.1-5.1 6.1 - 7.1 8.1 9.1-10.1-12.1-14.1
W1
200 200 200 200 180
W2
250 250 250 280 260
W3
300 300 300 340 320
W4
350 350 350 400 380
W5
400 400 400 460 440
W6
450 450 450 520 500
W7
500 500 500 580 560
W8
530 550 550 640 620
W9
550 580 600 700 680
W10
580 610 650 760 740
W11
600 630 700 820 800
W12
600 650 730 880 860
W13
- - - 900 900
9.1-10.1-12.1-14.1 :
left column
=
Upper fan; right column = lower fan
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