COTES C30
OPERATING AND SERVICE HANDBOOK
page 30/48
SECTION 6 / SERVICE AND REPAIR
HOW TO SERVICE AND REPAIR THIS DEHUMIDIFIER
Service and maintenance work on this
dehumidifier
Cotes designs its dehumidifier units so that they are as robust as possible, and only need a
minimum of service and maintenance.
None of the components require lubrication or adjustment.
The only maintenance work you need to do is listed below.
Once a month
•
Check or replace the filters for incoming air and regeneration air.
•
Check that the fans are operating (by listening to check whether they are turning).
Once a year
We also recommend the following annual checks.
•
Check the working hours of any component inside. See time-to-change limits below:
o
Process air filter. Depends on the working environment.
Specified for 8,700 hours under normal conditions.
o
Regeneration air filter. Depends on the working environment.
Specified for 8,700 hours under normal conditions.
o
Air filter for electrical box. Depends on the working environment.
Specified for 8,700 hours under normal conditions.
o
Process air fan: 30,000 hours
o
Regeneration air fan: 25,000 hours
o
Motor and gear for rotor: 25,000 hours
o
Heaters: 40,000 hours
o
Rotor: 50,000 hours
o
Electrical board: 50,000 hours
•
External humidity sensor should be calibrated or replaced (with recycled instruments)
•
Check the inside of the cabinet for any signs of dirt or corrosion. Check that the drive belt for
the rotor is still tight and that no parts of it are too worn or close to the breaking point.
•
Check that the insulation on all electrical cables is intact, with no mechanical or heat damage.
•
Check that the insulation on the electric heater(s) is intact.
•
Check that all cables inside the electrical box are properly attached, all miniature circuit
breakers (MCBs) are switched on and all components are intact.
•
Test that all electric components are working as intended
– for example by following the
instructions in the “Commissioning” section of this handbook.
