8
W
iring
Typical Heating and Hot Water control system using
3-port mid-position valve
The above control system is available as the Danfoss
Randall 102E5 HEATSHARE pack, which also includes
the TW room thermostat, AT cylinder thermostat, HS3 mid-
position valve and a WB12 wiring box.
1
2
3
5
6
L N
L
N
MAINS
SUPPLY
FUSED
3 AMP
ROOM
'STAT
LINK
COM
CALL
N
BOILER &
PUMP
TERMINALS
102E5
TERMINALS
MID-POSITION VALVE
BLUE
GREY
SAT
WHITE
OR
BROWN
CALL
COM
CYL.
'STAT
RED OR
ORANGE
