MyOT interface/actuator for OpenTherm Boilers
User manual and data sheet
5
Device Connections
To operate the device, you have to understand the utility of the green connector (see Tab. 1).
Figure 2: Aerial and green connector.
Tab. 1: green connector
Z-WAVE
AERIAL
1
OpenTherm
boiler
2
OpenTherm
boiler
3
OpenTherm
thermostat
4
OpenTherm
thermostat
5
GND
(-)
6
+5V
(+)
Here are some tips:
1.
The OpenTherm connection for both the boiler and the chronothermostat has no polarization.
2.
Pay close attention to the 5V power supply connection respecting the + and - as in table 1.
Warning LEDs
The IoB device has two signaling LEDs, one green and one red.
The green LED signals the status of the OpenTherm connection to the chronothermostat:
1 flashing every 3 seconds
The MyOT device is connected with the OpenTherm
Thermostat.
2 flashing every 3 seconds
MyOT works as if it were connected to a
chronothermostat with ON/OFF contact (traditional
system).
LED on and with 2 shutdowns every 3 seconds
MyOT in ON/OFF chronothermostat mode with heating
request in progress.
The flashing red LED indicates anomalies:
SIGFOX/ZWAV
E AERIAL
