Pfannenberg PWT 6402 230V Manuel D'utilisation page 59

GB
6 Troubleshooting
Fault Possible causes
• Temperature setting too high.
Unit does not cool,
Fan running
• Solenoid valve closed triggered by
• Application limits exceeded.
Unit does not cool
sufficiently
• Heat exchanger contaminated.
• Fan defective.
• Air circulation in switch cabinet
• Blow-out temperature too low.
Condensate
formation in the
• Switch cabinet is not sufficiently
switch cabinet
• Condensate drain is blocked.
Condensate does not
drain
7 Ordering spare parts / accessories
No. Designation
18811100066 Fan
18710200023 Unit cover RAL
18712500000 Float switch
 Always state the Pfannenberg part number when ordering spare parts and accessories.
8 Terms of warranty
The warranty does not apply or shall expire in the following cases:
• Improper use of the unit.
• Non-compliance with the operating conditions or non-observance of the operating manual.
• Irregular maintenance of air/water heat exchangers.
• Damage due to failure to observe the maintenance recommendations.
• Damage due to unauthorized opening.
• Modifications made to the unit or any change in the serial number.
• Transport damage or other accidents.
• Replacement of parts by unauthorized personnel.
 Only original parts from Pfannenberg GmbH may be used. Any infringements will result in the loss of warranty.
The following must be observed to assert warranty claims and to return the unit:
▪
Attach a precise description of the defect and the SRO (RMA) number assigned by Pfannenberg to the
air/water heat exchanger.
▪
Enclose proof of purchase (copy of delivery note or invoice).
▪
Send air/water heat exchanger with all supplied accessories, in original box or equivalent packaging, free
of transport charges and insured.
 Observe transport instructions, see
Operating Manual PWT 6402 230V / 400V 086100107b © Pfannenberg GmbH
float switch.
disrupted.
sealed.
transport.
Remedial measures
▪ Check temperature setting.
▪ Check condensate drain.
▪ Call authorized specialist personnel; check
float switch position/ function.
▪ Check ambient air temperature and internal
load.
▪ Call authorized specialist personnel, check the
unit for leaks.
▪ Clean heat exchanger.
▪ Call authorized specialist personnel; change
fan.
▪ Check installations and circulation channels in
the switch cabinet.
▪ Check the air inflow and outflow from the
air/water heat exchanger into the inlet and
outlet openings of the switch cabinet.
▪ Close switch cabinet door.
▪ Rectify any leaky areas or seals on the switch
cabinet.
▪ Check temperature setting.
▪ Clean the condensate drain.
▪ Check whether the condensate drain hose is
free of kinks and installed on a gradient.
No. Designation
Solenoid valve G3/8" 230V
18715000000
18713000003 Thermostat
18314000100 Condensate collection bottle
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