15
Position of the pressure taps of the TDP-D transmitter in COP systems with control of the supply pressure
EXTRACTION
DUCT OF
BUILDING
DUCT OF NEW
AIR INPUT
CONTROL
AERO-REG
(
Accessory
)
TDP-D
(
Accessory
)
+
6.6.3.5. Pressure switch connection
All CAD-COMPACT range of heat recovery units have differencial pressure switches to perform the control of
polluted filters. The pressure switches are located inside the equipment and wired to the electrical cabinet. If you
want to obtain specific information on the status of the filters through (light or sound indication), it is possible to
carry out an electrical operation by passing the power line through the filter contact.
Filter (
Δ
P)
Extract
Supply
Filter (
Δ
P)
3 2
1
3 2
1
WHITE / BLANCO
GREEN / VERDE
GREEN / VERDE
WHITE / BLANCO
Control pressure
switch filter EXTRACTION
Filter OK: 1-2 Continuity
Dirty filter: 1-3 Continuity
Control pressure
switch filter SUPPLY
Potential-free contact
available to perform
external wiring
TERMINALS INDICATION
FILTER STATUS
ELECTRIC CABINET
INSIDE THE UNIT
In any case, it is recommended to use a CONTROL CAD-REG or CONTROL AERO-REG control accessory that, in
addition to the filter supervision functions, integrates other functionalities such as speed regulation, fan fault
control, modbus communication, etc.
Detail of the connection to the CONTROL CAD-REG to enable the control of clogged filters:
1
2
3
18
GN
D
14
15 16 17
PD
19 20
WHITE / BLANCO
GREEN / VERDE
Filter (
ΔP
)
Extract
Supply
Filter (
ΔP
)
GREEN / VERDE
WHITE / BLANCO
3 2
1
CONTROL CAD-REG
(Accessory)
CAD-COMPACT -ECOWATT
Filter OK: 1-2 Continuous
Dirty filter: 1-3 Continuous
Summary of Contents for CAD-COMPACT 500
Page 1: ...EN CAD COMPACT ECOWATT...
