Frequently Asked Questions
evohome, Voice & Single Zone Thermostat
Product
Issue
evohome
Heating will
activate when
there is a hot
water demand.
evohome
Loss of
communication,
sluggish
response.
Fault log
communication
loss and restore.
evohome
S Plan Plus –
how do I control
more than one
heating zone
valve?
evohome
Why can't I
adjust the
cycle rate and
minimum run
time?
Cause
Resolution
Boiler relay
If a system has been set up and the
'double bound' as
Wireless Relay Boxes are moved to a
heating relay.
new function, the relay binding must be
cleared or it will continue to carry out its
original function. You may need to refer to
the wiring diagram in the Appendix of the
Installer Guide.
Relays positioned
If you're fitting a Wireless Relay Box
too close together
(BDR91) to your boiler, zone valve or
or next to metal
Sundial valve Mount the Wireless Relay
items.
Box on a non-metal surface at least 30cm
from your boiler, other wireless devices or
metal objects.
Ideally you
CAUTION ADVANCED APPLICATION*
should simplify
Either wire both/all heating zone valves
the installation
into the Heating relay
however in
(n.b. they will all open on a heat demand
certain cases it is
from any zone)
possible to control
Or
an S Plan plus
system
Bind multiple relays in at Heating valve in
the Guided Config.
All relays need to be in listening mode
when the binding signal is sent from the
evohome controller.
(n.b. they will all open on a heat demand
from any zone).
System configured
Configure system as follows
as S Plan or Y
Stored hot water and zoned heating
Plan (no boiler
system. This system needs HR92s or other
relay to control
zoning solutions for the radiators.
heat demand).
NOTE!!
If a system has been set up and the Wireless Relay Boxes are
moved to a new function, the relay binding must be cleared or it
will continue to carry out its original function.