Mark COLDSTREAM Technisches Handbuch Seite 12

4. If the fan should rotate in the wrong direction, it's necessary change the main switch power supply
connections by exchanging L1 and L2 connections
5. Look again... rotation has the same direction of the arrow.
6. Replace and fix the machine top.
If at point 3, the fan should rotate in the right direction, go to point 6 avoiding point 4 and 5.
Check the tightness of the belt
!
As the latter, after the first few hours of operation, tend to loosen due to the elasticity of the
rubber, correct tension must be restored, thus avoiding annoying noises and ensuring long life. To
check the belt, proceed as follows:
Excessive tightness of the belt as well as reducing the life of the belt, may also cause deformations
!
to the fan shaft and overload the bearings
Check, when checking the tightness of the belt, that the fan bearings do not leak liquefied grease:
this, together with the excessive temperature of the bearings (>60°C), detectable by touch, is a
symptom of defects.
Check that the power input value of the electric motor fall within the operating limits shown on the
rating plate. If the value is higher, this is normally the result of overestimating the pressure drop in
the system, and must be corrected by adjusting the equalizing dampers and/or the transmission ratio
by changing one of the two pulleys.
6.2 Comfort line
6.2.1 Remote Control Unit (display)
The cooling units are equipped with a remote control panel,
which enables the user to manage all the functions.
This panel contains a logical unit which enables several functions
necessary for good operation of the cooling unit.
At the first installation, it's possible that the display shows Etc
!
blinking. It's necessary to set the current time (see Settings
paragraph)
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Place a perfectly straight extruded bar on the two pulleys, by using a
finger apply a light force on the middle of the belt and measure the
distance between the flexed belt point and the bar. The distance should
be between 1cm and 1,5cm.
If the measured distance is higher or lower, it's necessary to tight or to
re-lease the belt by using the apposite screw.