5. MAINTENANCE
30
5.1 Introduction
For optimum operation conditions and a long product life it is necessary to perform
preventive maintenance on various parts within the stipulated intervals (see 5.2).
When servicing 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 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 be 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
* Or when filter alarm is shown
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.
•
Clean all drip trays, either dry or wet and check if condense water can run out freely.
•
Check for paint damage and rust. Clean the damaged/rusting part and protect it with
new paint.
•
Check all gaskets on the service doors for leaks and damage. Replace damaged
gaskets where necessary.
•
Lubricate door locks and hinges.
Component
Ref
Every 3 month
Every 6 month
Every 12 month
Cabinet 5.3
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
Crossflow heat exchanger
5.7
X
Dampers 5.8
X
X
Cooling circuit XWPS
5.9
X
Drop catcher
5.10
X
Summary of Contents for DanX 2/4 XKS
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