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Ductable air-cooled scroll
chillers and heat pumps
10. O
PTIONS
Condensation pressure control
In units with the STD version that work in cooling with an outdoor
temperature lower than 12ºC, the condensation pressure control
allowing an "all seasons" operation (up to -15ºC) is mandatory.
In units with centrifugal fan a check is performed per motorized
damper in the fan supply. A servomotor opens or closes the damper
depending on the proportional signal 0-10V received from the
electronic control system (during the operation of the fan).
Damper
M00 assembly:
HORIZONTAL air supply
Frame
M01 assembly:
VERTICAL air supply
30PA/PH/PAC/PHC Assembly
90STD to 180STD
(*) The damper incorporates a frame (60 mm width) to fi t the damper
The motorized damper is mounted on the air supply panel of the
Servomotor
machine. This in order to allow the operation test in the factory, with
all the necesary presetting during the test of the unit at the end of the
production line.
However, in accordance with the code of practice as regards aeraulic
installation, we recommend a remote installation of the damper, at a
distance approximately equal to 3xDe (equivalent diamenter) of the
supply air duct diameter.
This stipulation is the only one allowing a best operation of the motorized
damper with a homogeneous fl ow of the air.
In order to remove the damper it is necessary to unscrew from the unit
and disconnect the electrical suply of the servomotor.
In case of asking together for fl exible connections and damper for
condensation pressure control (optional for version STD), supply fl exible
duct is attached to the above mentioned damper. If it is removed the
damper for installation on duct, it is necessary to maintain the frame
for reconnecting the fl exible connections. Without fl exible connections
this frame may be removed.
Air fi lter
These units can include a frame with gravimetric fi lters in the air return
to the unit. The frame is assembled on a profi le made of moveable steel
metal which can be removed.
The fi lters frame is removable, and upon request, it is possible to
supply the frame independently with the 30PA/PH/PAC/PHC unit, to
be joined on site.
Damper
The frame dimensions can be referred to in the technical brochure for
Servomotor
these units (No. 10056).
M00
M01
to the fan supply.
No. of
Servos per
Damper
dampers
damper
width
1
1
150
1
1
150 (*)
Frame width = 53 mm
Filters are moved by
lifting the tab and dragging
21
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