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PCUS Thermostat - User Manual - 0821EN
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2.3 CONTROL UNIT OF PCUS
2.4 TECHNICAL DATA
Power Supply
230V +/-10%
Power
<5W
Load current
10A (resistive load)
Display Dimensions
130x90x25 mm
Display Installation
Wall mounted on box size 503
Power unit dimensions
185x120x255 mm
Max distance Power Unit Display
15 m max (variable value in relation to the installation conditions)
Control board display connection
cable (not supplied)
AWG22 4 conductors shielded
2.5 FUNCTION OF THE KEYS
The On / Off button (1) allows the unit to be switched on / off. The Mode / Menu key (2) allows you to switch
between heating / cooling operating mode if this switch is envisaged, together with the + key (5) it allows you to
access the user parameters.
The ventilation key (3) allows you to select between the min / med / max speeds of the fans with the unit on, if
pressed for a long time it allows you to activate the operation at time bands. The - key (4) and the + key (5)
allow you to modify the temperature set point.
2.6 ELECTRICAL CONNECTION
Refer to the attached connection diagram.
2.7 PCUS DESCRIPTION
The PCUS control system is a thermostat capable of controlling three-speed ventilation units, or with EC fans, 230V
on / off solenoid valves or modulating valves with 0-10Vdc signal and 230V on / off dampers..
It is also equipped with an internal clock with the possibility of programming four switching on / off time bands,
setting the set point and fan speed for three different types of time bands: weekly Monday-Friday (days 1 to 5)
called Week 1 , Saturday (day 6) called Week 6 and Sunday (day 7) called Week 7.
The PCUS control unit can connect up to four temperature probes NTC 10k type external temperature probes to
manage the various functions.
There is also the possibility of an additional 0-10V analog probe (CO2 or RH) to modulate the ventilation according
to an adjustable set point for the measured quantity.
The operation of the ventilation is adjusted manually with the appropriate ventilation key (3) or automatically if
the operation mode with external probe is selected.
