Hoval RoofVent CON-9, Design Handbook

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165
B
E
E
F
G
H
I
J
K
L
M
N
Checking the heat output
Compare the required output for coverage of the fabric
heat losses per unit with the data in Table G6. Increase the
number of units if the heat output is insufficient.
Actual output Q
TG
= 40 kW
Required output = 37 kW
→ OK
Checking the ancillary conditions
■ Maximum mounting height
If the actual mounting height (= distance between floor
and lower edge of the unit) is greater than the maximum
mounting height H
max
(see Table G6), the RoofVent
®
condens is not suitable for this application.
■ Maximum floor area reached
Calculate the floor area reached per unit using the
selected number of units. If it exceeds the maximum
value listed in Table G4, increase the number of units.
■ Compliance with minimum and maximum distances
Check the resulting distances based on the hall geometry
and arrangement of the units, using the information in
Table G7.
Actual mounting height = 7.2 m
Max. mounting height H
max
= 14.1 m
→ OK
Floor area per unit = 72 · 50 / 6 = 600 m²
Max. floor area reached = 797 m²
→ OK
Minimum and maximum distances can be complied with
when units are arranged symmetrically.
→ OK
Definitive number of units
With a larger number of units, there is more flexibility of
operation. However, the costs are also higher. For an
optimal solution, compare both the costs and ventilation
quality of the system.
Select 6 CON-9s. They guarantee cost-effective and
energy-saving operation.
RoofVent
®
condens
Design example