Hoval DGV-6/30, Руководство по конструкции

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5 Design example
Notice
Use the 'HK-Select' program to design Hoval Indoor Climate Systems. You
can download it free of charge on the Internet.
Notice
As a general principle, Hoval recommends vertical air flow, that is, that the
units be ceiling-mounted. Use horizontal air flow if ceiling-mounting is not
possible due to the particular conditions (added constructions, mounting
height).
5.1 Vertical air flow
Design data Example
■ Geometry of the room
■ Fabric heat losses
■ Room temperature
■ Extract air temperature
(Because of the low height, room temperature = extract air temperature is used in this example.)
■ Distance from ceiling
Geometry ..................................15 × 20 × 4 m
Fabric heat losses .....................38 kW
Room temperature ....................20 °C
Extract air temperature..............20 °C
Distance from ceiling .................0.6 m
Mounting height
■
Calculate the actual mounting height (= distance between the floor and the bottom edge of
the units).
H = Hall height – distance from ceiling – unit height
■
Compare the actual mounting height with the minimum and maximum mounting height
(see Table D9 and HK-Select).
GV-3/30
→
OK
GV-5/50
→
OK
Minimum number of units
■ Determine the minimum number of units for each unit type. Take into account the following criteria:
– Floor area covered
– Heat output
– Unit clearances
Type
Required number
Minimum number
of units
Floor area covered Heat output Unit clearances
GV-3/30 5 2 6 6
GV-5/50 3 1 4 4
■ Choose the final solution from the remaining possibilities, depending on the geometry of the hall and the costs.
40
TopVent ® GV
Design example