Pos. Part
Function
13
Pre-filter/coarse filter for
outdoor air
Filters outdoor air
14
Spigot 1.2
Exhaust air spigot
15
Spigot 2.1
Outdoor air spigot
16
Spigot 1.1
Extract air spigot
17
Spigot 2.2
Supply air spigot
1.4.2 Parts of the VEX unit
Cabinet
The inside and outside of the cabinet are made of Aluzinc® The cabinet has been
insulated with 50 mm mineral wool.
Fans
The VEX unit contains two centrifugal fans with backward curved blades for ex-
tract air and supply air.
Counterflow heat
exchanger
The VEX unit’s counterflow heat exchanger is made of aluminium and is highly ef-
ficient. The counterflow heat exchanger can be removed and cleaned. See section
"Servicing and cleaning".
Filters
The unit includes integral panel filters for both extract air and supply air.
Bypass damper
The VEX unit has an integral variably adjustable bypass, allowing for precise con-
trol of the supply air temperature.
*Integrated water
heating coil (HW)
The water heating coil is integrated in the VEX unit and is able to increase the
temperature of the supply air.
*Integrated cooling/
heating coil (CW)
The cooling/heating coil is integrated in the VEX unit and is able to cool or heat
the supply air.
*Integrated cooling/
heating coil (DX)
The DX coil is integrated in the VEX unit and is able to cool or heat the supply air.
*All VEX sizes can be supplied with one of the above coils as an option.
3005993-2021-03-09
Product information
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Summary of Contents for VEX300 Series
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