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TABLE OF CONTENTS
Safety information ............................................................................................................................................................... 3
Functional description ........................................................................................................................................................ 4
Installation
............................................................................................................................................................................. 5
Wall mounting (vertical) ...................................................................................................................................................... 5
Dimensional sketch .................................................................................................................................................. 6
Duct connection ......................................................................................................................................................... 7
Condensate drain ...................................................................................................................................................... 7
Duct system ................................................................................................................................................................ 8
Insulation of ducts in cold attics ......................................................................................................................... 8
Insulation of ducts in warm rooms ...................................................................................................................... 9
Post-heating of supply air ...................................................................................................................................... 9
Electrical installation............................................................................................................................................... 10
Control and calibration of the system ............................................................................................................... 10
Optimal initial calibration of the system .......................................................................................................... 11
System maintenance................................................................................................................................................ 11
Recommended maintenance intervals .............................................................................................................. 14
Spare parts .............................................................................................................................................................................. 15
Troubleshooting
.................................................................................................................................................................... 16
Safety thermostat in electric heating surface (accessory) ....................................................................... 16
System not running ................................................ ................................................................................................. 16
Alarms ........................................................................ ................................................................................................. 16
Electrical diagram – OPT270
............................................................................................................................................ 17
Declaration of conformity
.............................................. ................................................................................................. 18
De-installation instructions
.............................................................................................................................................. 19
