
Serial connections
Analogue/Digital INPUTS
Terminal
Function
Analogue Input
Digital Input
1 - 2 - 3
Remote Controller
1=S1, 2=S2, 3=GND
Wire length is maximum 100m with
1mm
2
shielded cables.
15 - 16 - 32
RS485 Mod Bus
15=
+
, 16=
-
, 32=GND
Terminal
Function
Analogue Input
Digital Input
9 - 10
Outdoor air temperature probe
(additional probe than the probe positioned on the
HP unit)
NTC
Resistance R25=10kΩ +/-1%
B25/85=3970K +/-1%
7 - 8
DHW tank temperature probe
NTC
Resistance R25=10kΩ +/-1%
B25/85=3435K +/-1%
11 - 12
Buffer tank temperature probe
13 - 14
Mix Water temperature probe
17 - 18
Humidity Sensor
0-10V DC
19 - 18
DHW remote contact
Voltage free contact 12V10mA
20 - 21
C onfigurable input:
-ON/OFF remote contact
-EHS Alarm
22 - 23
Dual Set Point Control
24 - 25
Heating/Cooling mode remote contact
26 - 27
Flow switch
28 - 29
Night mode
30 - 31
Low tariff
Analogue/Digital OUTPUTS
Terminal
Function
Analogue Input
Digital Input
4 - 5 - 6
3way mixing valve
6=0-10V DC (control)
4-5 =24V AC
N
Neutral
1ph 230V, 1A Neutral
41 - 42
EHS (External heat source for space heating)
1ph 230V, 1A
(in case of coil relay 40mA)
43 - 44
Heating/Cooling mode output
45
Dehumidifier
46
Electric heater for DHW or Backup heater
47
A larm (Configurable output)
- Alarm
- Ambient temperature reached
48
Pump1 (1st Additional water pump)
49
Pump2 (2nd Additional water pump)
50 - 51 - 52
DHW 3way valve
1ph 230V, 1A
50=Neutral, 51=Phase, 52=Signal
6.2 PCB(Terminal) Input/Output
50
6. Electrical connections
Содержание AEYC-0639U-CH
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