6
W
iring
102, 102E5, 102E7
Wiring
L
N
L
N
L
N
L
N
Motor
Brown
Call
Grey
Blue
HP2 spring return
zone valve
Cylinder Stat
L641A
Orange
To Boiler & Pump
Room
Stat
Com
N
Room
Stat
Com
Call
Boiler
Pump
Mains
Supply
Mains
Supply
Link
Link
L
L
N
N
1
2
3
5
6
1
2
3
5
6
N
1
2
102 Terminals
102 Terminals
C
1) Typical domestic gas or oil fired system
with gravity hot water and pumped heating
(if a room stat is not required, wire pump L
directly to terminal 2 on the 102).
2) Fully pumped system with cylinder stat in
HW circiut and room stat and 2 port spring
return zone valve in heating circuit.