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VR 250 ECH/B
Operation and maintenance instructions
206610 (16-11-2010)
2
Systemair
AB
GB
Introduction
Installation, operation and maintenance manual concerns air handling unit type VR 250 ECH/B
manufactured by Systemair AB. It consists of basic instructions and recommendations concerning the
design, installation, start-up and operation, which shall be obeyed to ensure proper and fail-free operation
of the unit. For proper and safe operation, read this manual thoroughly. Use the unit according to
guidelines given and follow all safety requirements.
Table of contents
Introduction ..................................................................................................................................... 2
Table of contents ............................................................................................................................. 2
Safety information ........................................................................................................................... 2
Warning! ...................................................................................................................................... 2
General ........................................................................................................................................... 3
Operation ........................................................................................................................................ 4
Airflow (Fan speed) ...................................................................................................................... 4
Supply air temperature ................................................................................................................ 5
Filter ............................................................................................................................................. 5
Summer operation ....................................................................................................................... 5
Manual summer operation ........................................................................................................... 5
Kitchen extraction ........................................................................................................................ 6
Maintenance .................................................................................................................................... 7
Changing extract/inlet filter .......................................................................................................... 7
Changing operation time between filter changes ......................................................................... 7
Checking the heat exchanger ...................................................................................................... 8
Checking the fans ........................................................................................................................ 8
Cleaning extract louvers and inlet diffusers ................................................................................. 8
Checking the fresh air intake ....................................................................................................... 8
Checking the duct system ............................................................................................................ 8
Troubleshooting .............................................................................................................................. 9
Service .......................................................................................................................................... 10
Safety information
In order to avoid electrical shock, fire or other damage which might occur in connection with faulty use and
operation of the unit, it is important to consider the following:
Warning!
The system should operate continuously, and only be stopped for maintenance and
service
Beware of sharp edges when mounting and during maintenance. Use protective gloves!
Tumble dryer must not be connected directly to the ventilation system
Make sure that filters are mounted in their place before running the system
Before performing any maintenance or electrical work make sure that the mains supply is
disconnected
Maintenance must be performed according to below instructions.
