Carrier 30RBM 160 Installation, Operation And Maintenance Instructions page 58

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 refrigerating circuit and to the same coil
system – DO NOT MIX several refrigerating circuits or
coil systems in the same duct
IMPORTANT:
The duct connections on the units must not generate any
mechanical stress on the fan supporting structure.
The fan impellers and protection grilles must always remain
in their position inside the ducts.
Use bellows or flexible sleeves for the duct connection.
Install an access hatch of at least 700 x 700 mm at each duct
outlet to allow the ventilation components to be replaced.
12.2.7 - Power factor correction (Option 231)
The power factor correction is active for any operating condition of the unit.
The power factor performance is guaranteed at 0.95 when the unit is running in conditions which require a power supply that
exceeds the Eurovent standard condition.
A capacitor battery is controlled by a controller which reads the current draw by the unit and adjusts the power factor to a
setting of 0.95.
The capacitors are dry type: no risk of leakage or fire.
The capacitors are selected for each unit as per below table:
Unit size RBM/P
Capacitor capacity
Capacitor 1
Capacitor 2
Capacitor 3
WARNING: Operation of the unit without capacitors raises the current.
58
160
kVAR 30
Capacity kVAR 10
Ir A 14
Capacity kVAR 20
Ir A 29
Capacity kVAR -
Ir A -
Fan motor electrical protection
In case of a locked rotor or an overload, the motors of each
circuit are electrically protected by the circuit 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 stops working, the drive automatically detects the
malfunction.
Refer to the control manual for the list of alarms specific to
this option.
180 200 220 260
30 30 40 40
10 10 10 10
14 14 14 14
20 20 10 10
29 29 14 14
- - 20 20
- - 29 29
300 330 360 400
50 50 60 60
10 10 20 20
14 14 29 29
20 20 20 20
29 29 29 29
20 20 20 20
29 29 29 29
430 470 520
70 70 80
10 10 20
14 14 29
20 20 20
29 29 29
40 40 40
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