18
| Condensation and heat insulation
Top view
Important
It should be ensured that the base frame is insulated. Without insulation it can occur condensat.
10
Condensation and heat insulation
Outdoor air duct and exhaust ducts must always be well insulated against condensation. Correct insulation installation
on ducts connected to the unit is especially important. All ducts installed in cold rooms/areas must be well insulated.
Use insulating covering (minimum 100 mm mineral wool) with plastic diffusion barrier. In areas with extremely low out-
door temperatures during the winter, additional insulation must be installed. Total insulation thickness must be at least
150 mm.
Caution
• If the unit is installed in a cold place make sure that all joints are covered with insulation, and tape well
• Duct connections/duct ends should be covered during storage and installation
• Do not connect tumble dryers to the ventilation system
11
Maintenance
11.1 Warnings
Danger
• Make sure that the Mains 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 supply to the unit has been disconnected there is still risk for injury due to rotating
part 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
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