Honeywell Evohome

Power up and bind a Wireless Relay Box
(BDR91) or OpenTherm Bridge (R8810) to
control a boiler
Make sure the Wireless Relay Box (BDR91) or
OpenTherm Bridge (R8810) is wired to the boiler and
powered up.
To bind the Relay Box or OpenTherm Bridge
1
Press and hold the button for 15 seconds (until the red
LED blinks rapidly) to clear any previous binding data
2
Press and hold the button again for 5 seconds
(until the red LED blinks slowly)
3
On the evohome Controller press
the green bind button
4
You should receive a SUCCESS message on the
evohome Controller (if not go back and re-bind)
If you are NOT
following GUIDED
CONFIGURATION
follow these steps
on your evohome
Controller display first:
1. Press and hold
‘Settings’
for 3
seconds
2. Press the green tick
3. Press SYSTEM
DEVICES
4. Press the button next
to ‘Boiler Demand’
5. Press BOILER RELAY
or OPENTHERM
BRIDGE
evohome
Controller
1 2
HOLD
15 SEC
HOLD
5 SEC
Wireless Relay Box (BDR91)
19evohome Installation Guide