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Fig. 1
Basic cooling circuit
3
6
1.4
Installation warnings
General rules
• When installing or servicing the unit, you must strictly follow the rules provided in this manual, comply with
the directions on the units themselves and take all such precautions as are necessary.
• The fluids under pressure in the cooling circuit and the presence of electrical components may cause
hazardous situations during installation and maintenance work.
All work on the unit must be carried out by qualified personnel only, trained to do
their job in accordance with current laws and regulations
• Failure to comply with the rules provided in this manual or any modification made to the unit without prior
authorisation will result in the immediate invalidation of the warranty.
Warning: Before performing any kind of work on the unit, make sure it has been
disconnected from the power supply.
@DNOVA THN_R410A-IOM-1506-E
4
M
5
M
2
1
Compressor
2
Condenser
3
Thermostatic valve
4
Evaporator
5
Filter dryer
6
Sight glass
7
Low pressure switch
8
High pressure switch
9
Condensing pressure
probe
P
7
1
P
8
9
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