Euroclima ZHK, Руководство пользователя

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Instruction Manual ZHK
V07-21.0 107/140
RST 156 126 12 150
RST 164 134 12 158
RST 177 149 11 171
RST 187 159 11 181
SPB
RST 156 117 19 149
RST 164 125 19 157
RST 178 139 19 171
RST 187 148 19 180
RST 200 161 19 193
RST 250 211 19 243
Table 16:
Data of pulley types
Changing the working diameter of a variable pulley:
1. Decrease the belt tension.
2. Open the disk circumference distributed screws (position see
Figure 207
)
3. Twist the outer ring (the outer rings for pulleys with 2 slots) to the desired diameter, observe
the limits as per
Figure 204
and
Figure 205
.
4. Fix the Allen screws.
5. Tighten the belts (refer to
chapter 9.2.5 (Re-tensioning of belts)
.
Figure 206:
Schematic structures of a
variable pulley
Figure 207:
Position of the Allen
screws on variable pulleys
After a change of the transmission ratio, the current consumption of the motor must be controlled in
each case. If the consumption is too high, the effective diameter has to be adjusted again. The
nominal current shown on the nameplate must not be exceeded.
Determination of frequency converter caused problems:
It can be determined whether or not problems are caused by the frequency converter by connect-
ing the fan motor directly to mains power supply. Most commercially available frequency convert-
ers have a feature to address these problems.
If the airflow is incorrect and support is required on this matter, please contact EUROCLIMA.
8.3.2 Vibration verification
Check on the quiet running of the fan. There should be no unusual rocking or vibration. Check for
unusual bearing noises. To prevent damage, operation above the permissible vibration values is
forbidden. The maximum permissible vibration speed according to the specifications of the fan-mo-
tor-unit manufacturer must be strictly observed and followed.
On commissioning of the AHU, vibration measurement and / or resonance frequency search in the
entire speed control range must be carried out and recorded in the acceptance report.