English
•
Inspect the condenser monthly on the external side to see if it is clean.
The fins of the condenser must not have any dust
deposits or residual products or sludges on their surface .
Picture 23 – Air filter Picture 24 – Condenser external surface
•
The condenser must be cleaned in monthly intervals, or, if required in shorter time intervals.
•
If the Chiller is equipped with a filter on the hydraulical side, the filter has to be checked/cleaned monthly, or if required, in a
shorter time interval
•
It’s recommended to change the water glycole mixture 20 % every year (every 2 years if it’s a 30 % or 50 % glycole mixture)
to allow the operation of the unit in the best conditions.
•
Longer standstill of the chiller requires draining of the tank and complete water circuit. Open the ball valve (or the plug) at
the end of the draining hose to drain the circuit. When the drain operation is finished close again.
•
For a new installation, it is recommended to empty the hydraulic circuit. Please, refer to chapter
4
for the lifting of the unit
and chapters
6
and
9
for connection and start up.
•
It is recommended to check safety discharge valve (in the refrigerant circuit, where installed) every 24/36 months. Leakages
and/or visible scale may suggest potential malfunction.
•
Please note: it is necessary to replace safety discharge valve after its intervention. Safety discharge pressure set is not
guaranteed after first intervention
•
Please, familiarize with components description table below prior to proceeding with Service and Maintenance requiring
refrigeration circuit sectioning.
•
No device with internal volume greater than 25 lt is installed on the refrigeration circuit, thus no further inspection from
notified bodies is required according to D.M. nr.309 – December the 1st 2004.
•
On special chiller which are designed to work in outside ambients (OD version), and also equipped with multipolar
connector, it’s necessary to change connector gasket every two years. The code of the gasket is indicated in the spare part
list of the unit. Use Loctite 407 or similar to fix the gasket.
The customer is intended to verify compliance with all additional local requirements in force
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