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www.stiebel-eltron.CoM
dIStrIbUtIon SyStEm for coolIng opEratIon
Distribution systems
subject to the type of installed coolant
distribution system, the cooling water
temperatures can be b8 °C
and +16 °C. to prevent condensation,
the cooling water temperature in
underfloor heating systems lies
above the dew point. the dew point
temperature is subject to the air
temperature and the relative humidity.
For that reason, any global statement
of the possible average cooling load of
these systems can only be viewed as a
rough estimate.
For fan convectors, the cooling water
temperatures can be reduced below
the dew point, and sensible as well
as latent heat can be extracted from
the room air through the condensate
removal. in addition, cooling ceilings
or wall heating systems are suitable
for passive cooling with ground source
heat pumps.
Underfloor cooling
with only little additional control
effort and equipment, the underfloor
heating system can also be used for
cooling during the warmer season.
the application is limited by Din 1946
t2; consequently an average cooling
load of approx. 20 to 25 w/m² results.
the manufacturer must approve the
suitability of the floor structure for
cooling, particular that of the installed
screed. Passive cooling requires
changeover zone valves with 230 V
control voltage.
Fan convectors/cassettes
the cooling load of a fan convector/
cassette is subject to the size, the
air flow rate and the cooling water
temperature. where sizing takes
the requirements of Din 1946 into
account, specific cooling loads of 30
to 60 w/m² heat exchanger surface
are achieved. the common equipment
sizing for average fan stages offers
users the option of regulating quickly,
even when heat loads fluctuate
severely (high fan stage).
Fan convectors
sour
ce:
reh
au
26
_0
3_
01
_0
38
9
26
_0
3_
01
_0
39
0
Содержание Heat pumps
Страница 97: ...97 www stiebel eltron COM Notes ...
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Страница 182: ...182 www stiebel eltron COM Notes ...
Страница 183: ...183 www stiebel eltron COM Accessories for heating heat pumps ...
Страница 234: ...234 www stiebel eltron COM WPF E mono mode without buffer cylinder WPF E mono mode with DHW heating ...
Страница 235: ...235 www stiebel eltron COM WPF E mono mode with low loss header WPF E mono mode with DHW heating and low loss header ...
Страница 247: ...247 www stiebel eltron COM DHW heat pumps ...