Ariston ST 50 ProTech Instructions For Installation, Servicing & Operation page 21

INTEGRAL I
CLOCK '
INTEGRAL BOILER CONNECTIONS
1
2 ZONE ,
CLIP-IN I
Valve Valve I
1 2 I
REMOVE
^ LINK ^
Note: Enable Parameter 223
and change from 0 to 1
GENUS Range program time
zones 1 & 2 on digital display
CLAS HE both zones timed
from integral timer
240 V
E N L 3 4 5 6 7 8 9 10 11 12 13
TERMINAL
BLOCK
/ 4 CALLING
' ROOM
THERMOSTAT
2« SATISFIED
CALLING
E GR OR BR BL E GR OR BR BL
WN MOTORISED C/H MOTORISED
VALVE (ZONE 1) VALVE (ZONE 2)
Note: Orange & Grey wires not used
HIGH LIMIT
STAT
CYLINDER
THERMOSTAT*
* Terminals shown are for the Ariston
Unvented Hot Water Cylinder Thermostats