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