Unical HP OWER ONE 120, User'S And Installer'S Manual

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WARNING: The remote control panel cannot be installed in areas with strong vibrations, corrosive gases, and excess
of dirtiness or high humidity levels. Leave free the area near the cooling openings.
5.8.1 Wiring terminal block
Electrical wiring have to be done only by qualified personnel.
The electrical connections have to be realized by qualified personnel. The terminal block is located under the cover of the unit
close to the side where the controller is positioned. To get access to the terminal block, please see the indications reported in the
paragraph 5.8.2. The wiring to the terminal block has to be realized in accordance to the below notes (the drawing is for
illustration).
The connections indicated below are standard. Other connections are shown in the User interface instruction manual , depending
on the configurations adopted.
Terminal Connection Type
X-1
Connect to the grounding wire of the power supply
Power supply input 1-Ph/N/PE,230Vac, 50Hz
N
Connect to the neutral wire of the power supply
L
Connect to the phase wire of the power supply
PE
Connect to the grounding wire of the power supply
Power supply input for 3-Ph/N/PE, 400 Vac,
50Hz.
(only for HP_OWER ONE 160)
N
Connect to the neutral wire of the power supply
L1
Connect this therminal to L1 of the three-power supply
L2
Connect this therminal to L2 of the three-power supply
L3
Connect this therminal to L3 of the three-power supply
X-5.2
Modbus RTU+ signal connection for remote control panel (R+)
Modbus communication
X-5.1
Modbus RTU- signal connection for remote control panel (R-)
X-4.1
Modbus RTU ground reference connection for remote control panel (GNDR)
X-12.1
Remote control panel power supply (12V, 50Hz, 500mA)
Output for power supply 12Vac, 50Hz
X-12.2
Remote control panel power supply (12V, 50Hz, 500mA)
X-17.1/X-17.2
Domestic hot water temperature sensor / thermostat digital input
Analog (
10KΩ NTC sensor at 25 ° C β 34 -
35)
or digital input
X-19.1/19.2
Plant’s remote temperature sensor / thermostat digital input
Analog input (
10KΩ NTC sensor at 25 ° C β
34-35)
or digital input
X-20.1/X-20.2
Double set point / domestic hot water digital input Digital input
X-22.2
0-10V (+) signal input for set point adjustment
Analog input (ST10)
X-22.1
0-10V (-) signal input for set point adjustment
X-6.1/X-6.2
Plant’s electric heater
Under-voltage output single phase 230Vac,
50Hz, 2A resistive,
X-9.1/X-9.2
Available resaurce
Under-voltage output single phase 230Vac,
50Hz, 2A resistive
X-10.1/X-10.2
Available resaurce
Under-voltage output single phase 230Vac,
50Hz, 2A resistive.
X-11.1/X-11.2
Domestic hot water valve output Output 1- phase 230Vac, 50Hz, 2A resistives.
X-14.1/X-14.2
Double setpoint valve output Output 1- phase 230Vac, 50Hz, 2A resistives.
X-16.1/X16.2
Summer / winter mode remote commutation input (to activate the function,
see the relative paragraph in the User interface instruction manual)
Voltage-free digital input
X-15.1/X15.2
on/off remote input
(closed = unit is ON / open =unit is OFF)
Voltage-free digital input
5.8.2 Terminal block and the electric box
The following illustration shows the the removal procedure of the coping plate for the 140/160 models, but the same procedure is
applicable for the other models