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Verfügbare Sprachen
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ture of the room if the air is not ducted outside.
• A suitable protection grille must be fitted during installation
near the external air exhaust pipe, to prevent foreign bodies
from getting inside the device. To ensure maximum product
performance, the grille must be selected from those with low
pressure loss.
• To prevent the formation of condensate: isolate the air ex-
haust pipes and the ducted air cover attachments with a va-
pour proof thermal coating of a suitable thickness.
• If necessary, install mufflers to prevent noise due to the air
flow. Fit the pipes, wall entries and connectors to the heat
pump systems with vibration damping.
Operating
hearth (e.g. open fireplace) and
the heat pump at the same time
ATTENTION
will cause a dangerous drop in
pressure in the room.
The negative pressure can cause the return of
exhaust gases into the room.
•
Do not operate the heat pump together with
an open fireplace.
•
Only operate fireplaces with airtight cham-
bers (approved) with separate combustion
air ducting.
•
Keep the doors of boiler rooms sealed and
closed so that the combustion air is not
drawn from living areas.
8.6.2 Cascade system aeraulic connections
The simultaneous operation of
an open chamber fireplace (e.g.
open fireplace) and of the heat
ATTENZIONE
pump causes a dangerous nega-
tive pressure in the environment.
Compulsory
air inlet
D
Ø
1
EN
178
EGEA TECH
an
open-chamber
Scomparto
INTERNAL
interno
>1%
1
1
cod. 3540000410 - Rev. 03 - 09/2023
200 LT - 260 LT -200 LT-S - 260 LT-S
fig. 54 - Example of air discharge connection
D
Ø
D
Ø
1
fig. 55– Example of air outlet connection
n° units
2
D [mm]
200
Nota:
Over 4 units (max 8), consider two separate ducts referring to
the diameters in the table relating to the number of units con-
nected in parallel.
Example with 7 units:
• No. of units connected in parallel on the first duct:
4 → ØD = 300 mm
• No. of units connected in parallel on the second duct:
3 → ØD = 250 mm
To avoid air recirculation it is mandatory to install a non-return
valve (part.1 fig. 54 and fig. 55) on the air expulsion duct of each
unit.
8.6.3 Special installation
One of the peculiarities of the heat pump heating systems is that these units
considerably lower the air temperature, generally expelled to the outside of
the house. As well as being colder than the ambient air, the expelled air is
also completely dehumidified, therefore the air flow can be returned inside
for the summer cooling of specific rooms or areas.
Installation provides for splitting of the extraction pipe, which is fitted with two
dampers ("A" and "B") for directing the air flow to the outside (fig. 57) or the
inside of the house (fig. 56).
>1%
INTERNAL
Scomparto interno
1
1
3
4
250
300
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