KOJA 0603, Instruction For Operation And Maintenance

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AIR HANDLING UNIT FUTURE
INSTRUCTIONS FOR OPERATION AND MAINTENANCE
Fan section, FFTS and FFTK
42 V. 2.0 2017-02-13
13. FAN SECTION, FFTS AND FFTK
13.1. Operating conditions
• The maximum permissible air temperature upstream of the fan is +40 o C.
13.2. Fan section
CAUTION
Leave space for maintenance. The ventilation system and its maintenance routes must be
designed and constructed so that the ventilation unit can be serviced and repaired easily
and safely. The National Building Code of Finland D2, section 3.8.6.
CAUTION
The fan section must be equipped with a service switch that can be used to stop it from
running for the duration of the maintenance work.
CAUTION
The component manufacturer’s installation and operating instructions must be followed.
In case of a discrepancy between these instructions and the component manufacturer’s
instructions, follow the component manufacturer’s instructions. For the detailed
component manufacturer’s operating and maintenance instructions, please refer to our
website at
http://www.koja.fi/fi/rakennukset/tukimateriaalit/ilmankaesittelykoneet
CAUTION
The fan models are not designed to be disassembled. If the fan has to be disassembled, due
to, for example, narrow hauling routes, the fan-motor assembly must be balanced and the
certificate of balancing must be presented, in order to retain the warranty. If the motor has
to be removed or the fan disassembled due to maintenance or repair work, permission is
needed from Koja Ltd’s Warranty Handler. Otherwise, the fan warranty will be voided.
CAUTION
If the fan has to be replaced, the faulty fan is to be returned with a length of the wire
attached to the motor.