18
7
Maintenance
Danger
• Disconnect the mains power supply to the unit is before performing any maintenance or electrical work!
• Carry out all electrical connections in accordance with local rules and regulation. Electrical connections
must be carried out by an authorized installer.
Warning
• Be aware of rotating parts even if the mains power supply is disconnected
• Beware of sharp edges during mounting and maintenance. Use protective clothing.
• Beware of hot surface on the heating coil during maintenance and service.
7.1
Maintenance intervals
Perform maintenance according to the operation and maintenance instructions to ensure a long operation lifetime for
the unit.
A thorough and recurrent maintenance is a must for a valid guarantee.
Type of maintenance
Once a year
When necessary
Cleaning the heat exchanger.
X
Cleaning the fans.
X
Cleaning extract louvres and supply
air diffusers.
X
Cleaning the outdoor air intake.
X
Cleaning the duct system.
X
1
1
Or in accordance with local rules and regulations
7.2
How to replace supply/extract air filter
The bag filter must be changed when necessary, they cannot be cleaned. We recommend ordering original filters from
Systemair. Operation time between filter changes depends on the air quality. A differential pressure transmitter indi-
cates when it is time to change the filters, which will trigger an alarm in NaviPad.
1. Pull out the old filters and replace with new ones.
2. In NaviPad, log in as operator; 1111 (min. level).
3. Press on the alarm symbol
on the control panel.
4. Choose
Filter alarm
and press acknowledge.
254051 | A001
