Dantherm DanX AF Series, User Manual

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5. MAINTENANCE
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5. M aintenanc e
5.1 Introduction
For optimum operation conditions and a long life it is necessary to perform preventive
maintenance on the various unit parts within the stipulated intervals (see 5.2). When working
on air-handling unit always turn off the electricity on the main switch and repair switch
(complete shut down) and secure for reconnection from unauthorized persons. Only open
the inspection doors when the unit is totally stopped and the fans have come to a stand still.
After switching off the unit the fan impeller will run for about 1 to 3 minutes before stopping
totally. The fan wheel must never be stopped by hand or with an object.
Commissioning, maintenance and repair work should only being carried out by trained
specialists
or by people supervised by authorized staff. It is the responsibility of the fitter to
read and understand this guide and other given information.
5.2 Maintenance plan
5.3 Cabinet
The following steps should be taken to maintain the cabinet of the unit:
•
Check the inside of the cabinet for dust or dirt. If necessary, clean either dry or wet
(every 3 months).
•
Clean all drip trays, either dry or wet, and check if condense water can run out freely
(every 3 months).
•
Check for paint damage and rust. Clean the damaged/rusting part and protect it with
new paint (every 3 months).
•
Check all gaskets on the service doors for leaks and damage. Replace damaged
gaskets where necessary (every 12 months).
•
Lubricate door locks and hinges (every 12 months).
Do not under any circumstances use strong solvents or solutions containing, chlorinated
Hydrocarbons, esters, ketones or abrasive cleaner or polish.
Component Ref Every 3 month Every 6 month Every 12 month
Cabinet 5.3 X X
Centrifugal fan 5.4 X X X
Plug fan 5.4 X X X
Filter 5.5 X X
Heating coil 5.6 X
Fresh air damper 5.7 X X
Cooling circuit 5.8 X