Installation and maintenance manual
H.I.B Hydac International Page 27 of 36
Version: G/DV
Date: 11.01.2023
11.3 Empty the tank (optional)
To drain the tank, open the ball valve and/or tank screw plug (3)
and drain the cooling medium via the hose. The coolant must be
disposed of properly.
12.0 Operation of the temperature controller (optional)
(Separate instruction: see annex)
General functional description:
The electronic regulator displays the temperature determined by the sensor in the buffer store
and compares it with the target value. Depending on the temperature, the output relay is activated
in accordance with the preset target value, the status of the circuit being displayed by the display
13.0 Service and maintenance
All maintenance and service work on the cooler must be performed only by specialist personnel,
cooling specialists or specialist electricians, depending on the activity.
13.1 Inspection
When the mechanical parts are running irregularly or when there are strange noises, switch off
the chiller / unit.
13.2 Maintenance schedule
What needs to
be checked?
How should checks be
performed?
Visual inspection, refill medium
Particle filter in
the water circuit
(optional)
Customer-specific (depending on filter
contamination)
(every three months recommended)
Visual inspection, replace
Customer-specific (depending on
contamination level and visual change)
Visual inspection, medium
exchange
Leakage test,
refrigerant
(optional)
Customer-specific (depending on air
contamination)
(every three months recommended)
Customer-specific (depending on air
contamination)
(every three months recommended)
Inspection (replace or clean as
required)
Dirt trap for
external water
(optional)
Customer-specific
(every three months and after
commissioning recommended)
See 13.5 Dirt trap cleaning /
replacing of the metal sleeve
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