7
3
Maintenance
3.1
Important
Danger
• Make sure that the mains power supply to the unit is disconnected before performing any maintenance
or electrical work!
• All electrical connections must be carried out by an authorized installer and in accordance with local rules
and regulations.
Warning
• Although the mains power supply to the unit has been disconnected there is still risk for injury due to
rotating parts that have not come to a complete standstill.
• Beware of sharp edges during mounting and maintenance. Use protective clothing.
• Beware of hot surface on the heating battery during maintenance and service.
3.2
Maintenance intervals
The table below shows recommended maintenance intervals for the unit and the installation. To ensure a long opera-
tion lifetime for the unit it is important to perform maintenance according to below recommendations and that they are
performed according to the operation and maintenance instructions. 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
154394 | A001
