Operating Instruction
Healthcare chiller of the KSC Series
Version „Revision 09“
Type KSC 215-L-U/S
page 11von138
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3
Brief operating instructions
See also chapter 5 – 10 in this operating instruction
3.1
Installing, maintenance and repair
Only qualified operatives with the requisite knowledge, equipment and facilities should maintenance and
repair the KKT chiller.
If its necessary to change the filling weight of the refrigerant circuit, please note:
Fill only with the refrigerants listed on the manufacturer name plate, and only up to the indicated filling
weight.
See also the enclosed Installing instruction
3.2
Linking to power supply
The size of the connection cable had to be conform to the local regulations. For current values and power
input see wiring diagram page 2.
The industrial coolers of the KSC series are generally designed for a main supply of 480V 3Ph 60 Hz.
The connection L1, L2, L3, PE is performed via the terminal block X1 (power supply) in the switch cabinet.
The cooling block is switched on via the main switch 5Q1.
3.3 EMC Compatibility and Grounding
This comments are compiled to help the field electrician to install the grounding of the power supply and to
get a EMC Compatibility.
All electrical equipment produces radio and line-borne interference at various frequencies. The cables pass
this on to the environment like an aerial.
The basic countermeasures are isolation of the wiring of control and power components, proper grounding
and shielding of cables.
A large contact area is necessary for low-impedance grounding of HF interference. The use of grounding
straps instead of cables is therefore definitely advisable.
Moreover, cable shields must be
connected with purpose-made ground
clips.
The grounding surface must be highly
conductive bare metal. Remove any
coats of varnish and paint.
