Rev. B 06-2019
17
2
NO
1
3
4
5
6
7
8
2
NO
1
3
4
5
6
7
8
OK
NO
2
NO
1
3
4
5
6
7
8
2
NO
1
3
4
5
6
7
8
2
NO
1
3
4
5
6
7
8
2
NO
1
3
4
5
6
7
8
2
NO
1
3
4
5
6
7
8
2
NO
1
3
4
5
6
7
8
2
NO
1
3
4
5
6
7
8
2
NO
1
3
4
5
6
7
8
2
NO
1
R1
3V
4V
5V
6V
7V
8V
9V
10V
R10 R2 R3 R4 R5 R6 R7 R8 R9
3
4
5
6
7
8
9
9
9
9
9
9
9
9
MTEC.6710.GB-B-1 Operation and maintenance manual HMA/Z series English
HMA/Z
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with temperature control
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The use of the minimum speed ( 1 and 2 ) must be carefully evaluated by skilled personnel because the operation at
very low fan speed could result in malfunction or even damage to the unit.
It is recommended to move a single micro switch for each operating speed . The displacement of two or more micro
switches may generate incorrect power supply voltages with malfunction or damage to the unit .
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3.3.3 Supply fan Microswitches (Only with VECE - indoor unit)
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that the displacement of the micro switch from one number to the next or previous leads to an increase/decrease of the available static
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