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DMAN802000066-SY250 Idro 4/8 Buttons Manual
Pin
Function
1-2
Line 230Vac 10%
3-4
Combustion Fan
5-6
Configurable Output V2: Heating Fan, Safety Pellet Valve or Auger 2, External
Loading Pellet Engine, Combustion Fan 2, Cleaning Engine, Output Under
Thermostat
7-8
Pump
9-10
Ignition Resistance
11-12
High Voltage 1 Input: Safety Thermostat
Short-circuit if not used
13-14
High Voltage 2 Input: Pressure Switch
Short-circuit if not used
15-16
Auger Motor
17÷21
Configurable Auxiliary Output: Safety Pellet Valve or Auger 2, External
Loading Pellet Engine, Cleaning Engine, Output Under Thermostat
22-23-24
Valve
25-26
Thermocouple
25: Red (+)
26: Green (-)
27-28
Room Probe or Thermostat
29-30-43
Pellet Sensor
29: GND
30: signal
43: +12V
31-32
Boiler Probe
33-34-35
Buffer Probe / Flow Switch
36
Non used
37-38-39
Pressure Sensor
40-41-42
Encoder
Combustion Fan (if available)
40: +5V
41: GND
42: signal
43-44-45
Primary Air Flow Sensor
43: +12V
44: signal
45: GND
CN1
Connection to the Control Panel
RS232
Serial Connection
RS485*
Serial Connection
Connect to the Earth
CONNECT ALWAYS
* if present
