ELECTRICAL
6 720 645 222a (2012/05)
13
5.2
INTERNAL DIVERTER VALVE WITH AN UNVENTED CYLINDER
OPTIONAL EXTERNAL FROST STAT CONNECTION ST6
Fig. 18 Frost Thermostat
B
Connect frost thermostat cables to terminals F
S
& F
R
.
B
These are not polarity sensitive.
CONNECTOR LOCATIONS
Fig. 19 Electrical connector information
6720645222-20.1Wo
L
N
S
N
L
S
L
R
N
blue
brown
green/yellow
live
switched live
neutral
E
230V
MAINS
SUPPLY
L
Cylinder
temperature
sensor
Twin Channel
Programmer
Room Thermostat
HIGH LIMIT
THERMAL CUT-OUT
HOT WATER CONTROL
THERMOSTAT
DUAL THERMOSTAT
*
Frost Thermostat
FS
FR
NP LP
ST6
6720643895-43.1Wo
6720645222-09.1W
o
ST15
ST17
ST10
ST8
ST6
ST18