Principle of the installation of the ducts
Solution 1
each fan has its own duct
Solution 2
2 fans can used the same duct
B
Fan motor access hatches (provide a 700 x 700 mm hatch) for each single and dual duct
Rules for a correct ductwork
-
Each duct must serve a maximum of 2 fans – DO NOT
EXCEED this limit
-
In case of multiple fans in the same duct, they must belong
to the same refrigerant circuit and to the same V-shape
system – DO NOT MIX refrigerant circuit or V-shape system
in the same duct
IMPORTANT: The unit duct connection must not create any
mechanical constraint on the fan support deck.
The fan housings and the fan protection grilles must always
remain in their position inside the ducts.
Use bellows or flexible sleeves for the duct connection.
At the outlet of each duct, provide an access hatch with a
minimum size of 700 x 700 mm to allow motor replacement
and disassembly of the fan impeller.
Fan motor electrical protection
In case of a locked rotor or an overload, the motors of each circuit
are electrically protected by the circuit variable frequency drive.
Each drive follows a variable current characteristic, based on the
frequency from 10 to 60 Hz and the number of controlled fans.
If a fan is not operating correctly, the drive automatically detects
the problem and sends an alert to the Smart View display.
Please refer to the 30RQM/RQP Smart View Control manual for
the list of specific alarms for this option.
10 - OPTIONS
47
Summary of Contents for Carrier 30RQM 160
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