Control Functions - S&P CADB/T-HE PRO-REG Series Instruction Manual

7. CONTROL FUNCTIONS

MAIN ELEMENTS
Control panel includes:
General switch
Electric box including control and wiring components, with access from side panel.
FUNCTIONS
Airfl ow adjustments
Manual airfl ow adjustment, adjustable at any point of the fan curve.
Automatic airfl ow adjustment, according to time band (Through a timer, included in the controller))
Automatic airfl ow adjustment in VAV mode, according to external signal 0-10V (CO accessory)
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Automatic speed adjustment of the fans in Constant Arfl ow mode (Increase of fan speed on the basis of pollution
of fi lters)
Automatic speed adjustment of the fans in Constant Pressure mode (Increase of fan speed when pressure in the
duct system decreases)
BOOST function (Forced speed preset via external power free contact)
ON/OFF function (Remote ON/OFF via external power free contact)
Temperature regulation
Temperature probes integrated within the unit (supply, extract, inlet and outlet)
Anti-frost probe water coil (DC-Versions)
Thermal power regulation of hot water coil
Modulating 3 points control of water valve (accessory)
Regulation of water coil thermal power. 0-10V control of the water valve (accessory).
Regulation of electric heater battery thermal power in DI versions. Proportional control via SSR.
Bypass adjustments
Manual actuation of bypass
Automatic actuation of bypass function free-cooling/ free-heating and heat exchanger anti-freezing protection
Night free-cooling mode (Cooling of the building at night)
SECURITY FUNCTIONS
Control of polluted fi lters via pressure switches (included)
Alarm display in remote control
Detailed information of alarms
Failure in temperature probes
Failure in fan via pressure switches (included)
Fire alarm indication, via activation by external contact coming from fi re switchboard.
Anti-frost protection of heat exchanger via bypass activation.
COMMUNICATION
Remote wiring control
ON/OFF remote digital input via external power free contact.
Alarm digital output via power free contact.
Modbus RTU (RS-485)
Bacnet TCP/IP
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