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5.12.1 LED
Cooling mode LED
Heating mode LED
Pump LED
Alarm LED
Defrost LED
Compressor LED
Domestic hot water LED
Antifreeze heater LED
5.13 TERMINAL BLOCK
The following is the list of I/O (inputs and outputs) that can be set to activate the functions of the controller.
Parameter Terminal block
Resource
ST 6
ST 7
ST 11
ID 2
ID 3
ID 9
DO 3
DO 6
DO 7
Modbus RTU/RS4825
communication
12
Default
X
value
H17
17.1 / 17.2
H18
19.1 / 19.2
22.1 (gnd)
H22
22.2 (un-
der-voltage)
H46
16.1 / 16.2
H47
15.1 / 15.2
H53
20.1 / 20.2
6.1 (phase)
H81
6.2 (neutral)
11.1 (phase)
H84
11.2 (neutral)
14.1 (phase)
H85
14.2 (neutral)
4.1 (gnd)
--
5.1 (R-)
5.2 (R+)
Picco R32
• LED ON if unit is in cooling mode.
• LED ON if unit is in heating mode.
• LED ON if pump running.
• LED ON if an alarm is triggered.
• ON if defrosting enabled
• OFF if defrosting disabled or finished
• FLASHING if defrosting time interval count in progress
• ON if the compressor is running
• OFF if the compressor is off
• FLASHING if pending the timed compressor start
• ON if sanitary mode enabled
• OFF if sanitary mode disabled
• FLASHING if DHW production in progress (sanitary valve on)
• LED ON if antifreeze heater on.
Factory configuration
Function
0
Not set
0
Not set
0
Not set
Remote summer/winter mode
0
change
(see paragraph 10.3.2)
Remote on/off,
2
(see paragraph 10.3.1)
0
Not set
Plant integration heater
22
control
DHW valve control
6
(see paragraph 10.2)
Double setpoint valve control
25
(see paragraph 10.14)
--
--
Heat pumps inverter air/water with axial fans
Description
Analogue input configurable with an NTC-
10kΏ probe at 25°C β 3435
Analogue input configurable with an NTC-
10kΏ probe at 25°C β 3435
0-10Vdc under-voltage input
Voltage-free digital input.
To activate the function par. 10.3.2
Digital input, voltage-free contact. Default
function active.
Voltage-free digital input
230Vac, 50Hz, 2A (AC1) live output
(see paragraph 10.5.1)
230Vac, 50Hz, 2A (AC1) single-phase live
output
230Vac, 50Hz, 2A (AC1) live output
Factory enabled with CM accessory
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