17
8. CONTROL SCHEMES
M
6
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6
6
6
+(
)
0
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)&'
^^KZz
KEdZK>>Z
57
DŽĚĞKW
KŶůLJǀŝĂ
DŽĚďƵƐ
dW
^KϮ
SF
Supply fan
HE
High-efficiency heat exchanger
EF
Extract fan
RT
Remote control panel
S1
Supply temperature probe
F7
Supply filter
S2
Outdoor temperature probe
M5
Extract filter
S3
Extract temperature probe
M
Bypass actuator
S4
Exhaust temperature probe
SCO2 CO2 sensor (accessory)
FCD
Polluted filters detector (pressure switch)
TDP
Pressure sensor TDP-S (accessory. Exclusively for use in
case of Modbus integration)
FFD
Fan Failure Detector (fan relay)
9. CONTROL BASIC OPERATION
9.1. DESCRIPTION
The control BASIC is a Plug & Play control factory mounted and wired that allows the management and
supervision of heat recovery units of the series CADB/T-HE-D without heating/cooling coils.
9.2. MAIN FUNCTIONS
The BASIC controller allows the management of the following functions:
9.2.1. Via the remote terminal supplied with the unit
FUNCTIONALITY
Manual fans speed adjustment
Automatic fans speed adjustment in VAV mode. Fans adjust their speed from the signal measured by an external
sensor (CO
2
, Relative humidity or Temperature)
Remote stop / start of the unit via external contact (Free of voltage)
BOOST function: Forced preset speed via external contact free of voltage. Only available for models 04 to 27
Bypass damper management
Heat exchanger anti-freezing protection
Alarm display in remote control
Control of polluted fi lters via pressure switches (included)
Control of fans status / failure
Modbus RTU communication
