Only one fresh air and one
adjoining room connection are
permitted to be used!
CAUTION
8
Remove the cut-out
9
Remove the insulation
10
Break through the opening
11
Install the nozzles
Connections to adjoining room
and fresh air intake
KWD 70 EC-100 EC
Fresh air connection
Adjoining room connection
Installation instructions
Proceed as follows to make
the connections to a second room
and the fresh air intake:
1. Note that the exchanger fins
are located directly behind the
opening being removed. These
should not be damaged under
any circumstances
(Fig. 8)
.
2. Carefully remove the insulation
behind the opening
(Fig. 9)
.
3. Break through the appropriate
opening
(Fig. 10)
.
4. Keep the ventilation pipes
as short as possible and lay
them in such as way
as to minimise the number
of bends.
5. The collars, screws, flexible /
folded spiral seam pipes
and insulation materials must
be provided by the customer.
These items can be obtained
from specialist suppliers
(Fig 11)
.
Adjoining room connection
The unit can also be used to cool
an adjoining room through a duct
system, e.g. hidden behind
a suspended ceiling. The following
prerequisites must be met for this:
■
Observe the regional
regulations concerning
air treatment.
■
Fit a collar with a nominal
diameter of 100 mm to the
adjoining room connection.
■
The cooling capacity of the
indoor unit must be sufficient
for both rooms.
■
An opening must be made
between both rooms to allow
the air to circulate.
Fresh air connection
The unit can also be employed
to suck in and regulate the
temperature of fresh air (outdoor
air), in addition to room air.
This is the preferred option
for rooms with a high rate
of air consumption.
■
Observe the regional
regulations concerning
air treatment.
■
Fit a collar with a nominal
diameter of 100 mm to the
fresh air connection
(page 22, Fig. 13)
.
■
The fresh air content should
not exceed 10% of the nominal
air flow rate for the unit.
The fresh air supply should
be controlled by an additional
speed-regulated fan.
■
The air at the outdoor air intake
should be sucked in through
a dust filter at a maximum
rate of 2.5 m/s to prevent
the ingress of rain water.
■
The fan should be connected
to a separately protected
electrical supply that is to be
provided by the customer.
■
The maximum pipe length
of 7 m must not be exceeded
(page 22, Fig. 12)
.
■
In order to ensure that the air
is transported to the adjoining
room, close off 1 or 2 of the 4
outlets on the cover.
Stick a black single-sided
adhesive fabric strip over the
outlet openings being covered.
This strip must be able
to withstand the effects
of a continual air flow.
REMKO KWD EC series
24
