Ariston E-Combi 30 - Page 26

26
installation
Room Thermostat / Remote Clock Connection
The boiler connections for external controls are 12V
DC and so only controls of 12V DC that have voltage
free contacts should be used.
The boiler connections for external controls are 12V
DC and so only controls of 12V DC that have voltage
free contacts should be used.
To connect a room thermostat, it is necessary to:
1. Open the control panel
2. Loosen the cable clamp using a screwdriver
and insert the wires leading from the room
thermostat
3. Connect the wires to the terminals as indicated in
the gure below, removing the link
4. If a remote time clock is to be tted, (using a volt
free switching time clock) connect the switching
wires from the time clock following points 1 - 3
above (Disconnect internal time clock)
5. If using an external time clock and room thermostat,
these must be connected in series as shown in
diagram C, (Disconnect internal time clock)
6. Ensure that they are well connected and not
subject to stress when the control panel is closed
Note: wheN coNNectiNg the boiler to exterNal coNtrols,
do Not ruN 240V cables for switchiNg circuits (which
are low Voltage) together use seperate cables to
preVeNt iNduced Voltage oN the low Voltage circuits.
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SCHEDA CALDAIA
SETA1
Connector TA on Terminal block
(low voltage switching)
Connector TA on Terminal block
(low voltage switching)
Connector TA on Terminal block
(low voltage switching)
P.C.B