10
6.6. ELECTRICAL CONNECTION
The CAD-COMPACT ECOWATT range are supplied without a complete operating control integrated in the unit. The elec-
trical components included in the unit (fans, by-pass servomotor, filter pressure switches and temperature probes)
are supplied wired in an electrical cabinet located in one side of the unit. To access the electrical terminal block and
conveniently make the electrical connection of the accessories it is advisable to remove the connection board, follow the
following sequence:
1. Loosen the 5 screws that are distributed by the cover of the electrical cabinet (Fig. 1)
2. Open the cover and pull the metal plate on which the electrical terminals are located until it is outside the cabinet
(Fig. 2).
3. The electrical cabinet has a PG connector for the electrical power cable. Further of this, in a bag that is supplied
inside the unit, there are 3 more connectors that can be used to route the control wiring to the control accessories or
the control panel of the building. Pass the necessary wiring through the connectors.
4. Make the electrical connection to the control board and put it back inside the electrical cabinet, making it slide throu-
gh the existing guides (Fig. 3).
Fig.1
Fig.2
Fig.3
It is recommended to reduce the wiring lengths of the control maneuvers in order to reduce possible effects of the en-
vironment on the control signals.
To avoid interference that may affect the operation of the unit, it is recommended that the wiring be routed away from
other electrical power lines, motors, refrigeration compressors, frequency inverters or the like.
This equipment complies with the Electromagnetic Compatibility Regulations that are applicable to them.
The use of shielded cables is recommended, although in environments with a high level of electromagnetic disturban-
ces, it may become necessary to shield the wiring using a metal tube.
6.6.1. Wiring diagram
CAD-COMPACT models 500 to 3200 have plug-fans with EC motors 230V supply voltage, while the CAD-COMPACT
4500 model have fans with a three-phase motor.
The electrical wiring consists of two phases: the power supply of the fans and the control wire.
Fans power wiring
The two fans are wired to the switch located on the lid of the electrical cabinet. To power the fans, wire the power
line to the terminals of the switch.
T1
N
N
L1
SUPPLY
FAN
EXTRACT
FAN
ELECTRICAL
POWER SUPPLY
230/I/50‐60Hz
GND
BLUE
BROWN
BLUE
GND
BROWN
GND
L1
L3
L2
ELECTRICAL
POWER SUPPLY
400/3/50‐60Hz
BROWN
BLACK
GREY
SUPPLY
FAN
EXTRACT
FAN
GND
BROWN
GREY
BLACK
GND
CAD COMPACT 500 TO 3200 MODELS
CAD COMPACT 4500 MODEL
Summary of Contents for CAD-COMPACT 500
Page 1: ...EN CAD COMPACT ECOWATT...
