Pfannenberg Rack Serie Libro De Instrucciones página 24

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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 .
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The condenser must be cleaned in monthly intervals, or, if required in shorter time intervals.
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If the Chiller is equipped with a filter on the hydraulical side (filter to be installed in the inlet of the chiller), the filter has to be
checked/cleaned monthly, or if required, in a shorter time interval
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It's recommended to change the water glycole mixture 20% every year (every 2 years if it's a 30 % glycole mixture) to allow
the operation of the unit in the best conditions.
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Longer standstill of the chiller requires draining of the tank and complete water circuit. Open the ball valve at the end of the
draining hose to drain the circuit. When the drain operation is finished close again the ball valve, otherwise when you refill
again the circuit water will automatically darined again from the hose.
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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 7 and 11 for connection and start up.
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It is recommended to check safety discharge valve every 24/36 months. Leakages and/or visible scale may suggest potential
malfunction.
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Please note: it is necessary to replace safety discharge valve after its intervention. Safety discharge pressure set is not
guaranteed after first intervention
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Refrigeration circuit is subjected to high stationary and operating pressures.
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Please, familiarize with components description table below prior to proceeding with Service and Maintenance requiring
refrigeration circuit sectioning.
English
Picture 24 – Air filter
placement
Picture 25 – Condenser external surface
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Air filter