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Siting the CRL
internal unit
Duct connections
(on site)
Air duct connections are identified
with the following labels:
Hydraulic connection
Heating coil: H ydraulic
connection
example
Cooling coil: H ydraulic
connection
example
Note:
Positioning valves close to the heat exchanger improves the control characteristics
3064361_201710
14. Positioning
The installation site must be level and sufficiently load-bearing (at least 450 kg).
Level the unit horizontally (align using the adjustable feet). The installation site
must be able to bear the load of the ventilation unit without vibrations on a long
term basis. Provide sufficient space at the front of the unit for maintenance work.
Site the unit in a room that is free from the risk of frost.
Type
Clearance for opening the
inspection doors
Clearance for air duct
connections above the unit
* Unit with rapid heat-up damper
The unit connectors are rectangular.
Round ducts can be connected directly to the connectors using an adaptor
insulating collar (from square to round).
Insulate the ducts in accordance with applicable regulations and industry
standards.
Adaptor insulating collar for round duct connection on internal unit with vertical
and horizontal duct connection (accessory)
Outdoor air:
AUL / ODA
6801059
Extract air:
ABL / ETA
6801061
ϑ1 =ϑ2
CRL 1300
2500
3500
700 /
mm
700
700
900*
mm
500
500
600
Exhaust air:
48/10
Supply air:
48/10
Admixing circuit
Benefits: good control
characteristics, low risk of
freezing
Diverting circuit
Benefits: constant flow
temperature in cooling coil,
good dehumidification even at
partial load
4800
6200
9000
700
800
900
700
800
900
FOL / EHA
6801062
48/10
ZUL / SUP
6801060
48/10
27
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