MUND CLIMA MUCH-20-H4, Руководство по эксплуатации, Страница: 31 / 43

Ducted Split Type Air-Conditioning
27
10) Information for fuse
Fuse Model code
MUCH-20-H4
MUCH-25-H4
MUCH-30-H4
Indoor T5AL 250V 46010013
Outdoor T3.15AL 250V 46010014
MUCH-40-H4
Indoor T3.15AL 250V 46010014
Outdoor T3.15AL 250V 46010014
11) Adjust the tightness of the belt of the fan unit (Be Suit For 25KW~40KW)
The rotation of the fan is achieved by the transmission of the belt. The velocity and stability of the fan is
associated with the tightness of the belt and the tightness should be adjusted after a period of time. For a new
belt, the tightness should be adjusted for at least twice within 24 hours.
After one week running, the tightness of the belt should be adjusted again, we should routinely check it
every 1-2 months; also ensure the test results complying with Table 2.
The adjustment of the tightness of the belt is shown in Fig. 25. Loosen screws fixing motor on the base,
move motor along the direction of arrow as shown in the picture, then fix the screw again.
The tightness level of belt is tested by tensiometer as shown in Fig. 26, when reaches the deviation
length(Deviation=The total length beit/64) ,read the value on the meter, the value should be in the category
specified in Table 2.
Table.2 Tension range of the belt
Belt Section Diameter of the small wheel (mm)
Tension (N)
Min Max
SPA 80~132 25 35
SPZ
56~95 13 20
100~140 20 25
0RXQWLQJSODWH
IRUPRWRU
1XW
1XW
6HWWLQJOHYHU
%HOWWHQVLRPHWHU
Fig. 25 Adjust the tightness of the belt Fig. 26 Utilization of the belt tensiometer