Installation Instructions

43evohome Installation Guide
Honeywell Y plan 1 three-port
mid-position valve
The operation is identical to the S plan but it uses
a single three-port or mid position valve.
Stored hot water and zoned heating
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.
!
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.
!
Figure 3 Honeywell Y plan
Figure 4 Stored hot
water and zoned heating
system. This system needs
HR92s or other zoning
solutions for the radiators.
Pump
Radiators
DHW Cylinder
BOILER
Junction
Box
V4073
evohome
Central Controller
DHW Heating
BDR91
Wireless
Relay Box
BDR91
Wireless
Relay Box
CS92A
Wireless
Cylinder
Thermostat
Pump
Radiators
DHW Cylinder
BOILER
Junction
Box
V4043
evohome
Central Controller
DHW
BDR91
Wireless
Relay Box
CS92A
Wireless
Cylinder
Thermostat
HR92
Radiator
Controller
BDR91
Wireless
Relay Box