Ariston microSYSTEM 21 RFFI - Oom Thermostat Connection

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To connect a room thermostat and/or time clock, it is necessary to:

1. - Open the control panel as indicated in section 4.3;

2.- Remove screws “A” and remove the inspection cover from the reverse of the control

panel;

3. - For the room-thermostat connect the thermostat switching wires to the position 5 and

6 and remove the wire link (for three-wire thermostats connect the neutral to terminal

N);

4. - For the time clock connect the clock switching wires to the positions 3 and 4 and

connect the clock motor electrical supply to the terminals marked L and N.

Note: A frost thermostat is built-in to the appliance.

For connection to control systems with zone valves for hot water cylinders

see section 3.

2.11 ROOM THERMOSTAT

CONNECTION

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