Mark MDV Blue 225, Техническое руководство, Страница: 4 / 32

1.2 Key to table [1]
A Type
B Supply voltage (50Hz)
C Nominal airflow
D Nominal power consumption
E SFP nominal
G Air velocity nominal
H Pressure nominal
I Stat. efficiency fan
J Noise level (5m)
K Max. airflow
L
Current I max
N Weight
O Fan protection class
1.3 General warnings
Incorrect installation, adjustment, alteration, maintenance or repair may lead to material or
environmental damage and/or injuries. The appliance should therefore be installed, adapted
or converted by a skilled and qualified installer, taking into account national and international
regulations. Faulty installation, adjustment, alteration, maintenance activity or repair shall render
the warranty void.
2.0 Placement
2.1 Roof curb [5] [6] [8] [9]
Roof curbs [5] Types 1 and 5 must be screwed to the roof structure with the integrated
mounting brackets [8] , which can be rotated 90º.
When roof curbs [5] Types 2, 3, 4 and 6, 7, 8 are equipped with a self-closing valve and/or round
connection, mounting brackets [6] are supplied. These have to be hooked into the therefor
intended slot and must then be screwed to the roof construction.
When the roof curb is fixed and inserted correctly, the MDV Blue roof fan can be mounted on the
roof curb. Make sure that a rubber seal is fitted between the mounting bolt and the roof fan
[9] .
This ensures a watertight seal.
Check if the fan can rotate freely.
2.2 Electrical installation
Electrical connection is made through a terminal box, which is stated on the casing. The fan must
be connected to the mains by a qualified electrician only.
- Check if the voltage and frequency corresponds with the specifications put on the fan‘s ID
plate.
- All electrical wiring and connections must be carried out in compliance with national safety
regulations.
- Important! The fan must be grounded.
- Use the cable entries that already exist, don’t drill extra holes.
- Check the direction of rotation.
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