Honeywell Evohome

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.
If a system has been
set up and the relays
are moved to a new
function, the relay
binding must be cleared
or it will continue to
carry out its original
function.
!
Pump
9HKPH[VYZ
+/>*`SPUKLY
)603,9
Junction
Box
V4073
evohome
Central Controller
DHW Heating
BDR91
Wireless
Relay Box
BDR91
Wireless
Relay Box
CS92A
Wireless
Cylinder
Thermostat
Pump
9HKPH[VYZ
+/>*`SPUKLY
)603,9
Junction
Box
V4043
evohome
Central Controller
DHW
BDR91
Wireless
Relay Box
CS92A
Wireless
Cylinder
Thermostat
HR92
Radiator
Controller
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.
43evohome Installation Guide