S&P CADB-HE ECOWATT Series Manual page 60

CADB/T-HE 04 to 21 models:
In these sizes the units have plug-fans with EC motors 230V supply voltage. The motors have
specifi c terminals for sending a regulation signal to control fan speed (0-10V).
The 0V signal corresponds to the fan stop, while the signal of 10V corresponds to fan maximum
speed.
To perform the speed regulation in COP mode, it is necessary to use the accessory CONTROL
AERO-REG and the external pressure sensor TDP-D. In the CONTROL AERO-REG instruction
booklet it is contained the necessary information to carry on the electrical connection of the
different components.
1º Connect the pressure transmitter TDP-D (accessory) to the duct system where the heat reco-
very unit is ducted. Ensure that pressure taps " + " and " - " are in the right position according
to the following images.
AERO-REG
CONTROL
(Accessory)
AERO-REG
CONTROL
(Accessory)
60
TDP-D
(Accessory)
DUCTS SYSTEM
DUCTS SYSTEM
TDP-D
(Accessory)
DUCTS SYSTEM
DUCTS SYSTEM
EXTRACTION
SUPPLY
EXTRACTION
SUPPLY