Wolf CRL-A-1300, Installation And Maintenance Instructions Manual

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27 3064361_201710
14. Positioning
Siting the CRL
internal unit
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 CRL 1300 2500 3500 4800 6200 9000
Clearance for opening the
inspection doors
mm 700 700
700 /
900*
700 800 900
Clearance for air duct
connections above the unit
mm 500 500 600 700 800 900
* Unit with rapid heat-up damper
AUL / ODA
6801059 48/10
AUL/ ODA
FOL / EHA
6801062 48/10
FOL /EHA
ABL / ETA
ABL/ ET A
6801061 48/10
ZUL / SUP
6801060 48/10
ZUL /SUP
Duct connections
(on site)
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: Exhaust air:
Extract air: Supply air:
Air duct connections are identified
with the following labels:
Hydraulic connection
Heating coil: Hydraulic
connection
example
Cooling coil: Hydraulic
connection
example
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
Note: Positioning valves close to the heat exchanger improves the control characteristics
ϑ 1 = ϑ 2