Note: Disconnect any Opentherm thermostat from the
boiler and reconnect to “OT Thermostat” connections on
the BCM.
Installation
5. Terminate the necessary cables from the boiler,
supply and external devices into the backplate.
If using the backbox, do not use the cable clamps.
Installation
6. Remove cable knockouts on the bottom of the
BCM as required.
7. Connect the BCM to the wall mount.
LED Fault Finding Table
Installation
3. Unclip the wall mount from the BCM.
4. Fix the wall mount in a suitable position or use the
backbox mounting holes as shown below.
Wall xings
Backbox xings
Connect a 230V AC supply from the boiler to the “230V
AC Supply” connections on the left-hand side of the wall
mount.
Connect the EBus, EMSBus or OpenTherm connection
from the boiler to “Boiler +” and “Boiler –“.
Connect any external devices as required.
8. Turn the boiler power on and ensure RED LED is lit
* Optional external device.
9. Complete the commissioning process within the
online portal.
Red LED (Upper LED)
RED LED Status Description
On Device working on mains power.
Flashing Device working on battery power.
The device will power o after one
minute.
O No power.
Green LED (Lower LED)
GREEN LED Status Description
On Device connected to the cloud
and boiler.
Flashing (Once per
second)
Device connected to boiler.
Attempting to connect to
cloud.
Flashing (Three
times per second)
Device connected to cloud.
Attempting to connect to
O Boiler and cloud connection
not available.
