Ariston 41-116-05 installation instructions Rffi, Room Thermostat Connection

	Exhaust	Restrictor	Maximum	Risk of Condensation Forming
15 RFFI	Type	ø 41 mm	Extension	Piping not insulated		Piping insulated
			Exhaust/Air	ø 41 restrictor	NO restrictor	ø 41 restrictor	NO restrictor
Coaxial	C12 (xx)	L min = 0.5 m	L = 5 m
Systems	C32 (xx)			NONE	NONE	NONE	NONE
		L max = 1 m
ø 60/100	C42 (xx)
	Exhaust	Restrictor	Maximum	Risk of Condensation Forming
15 RFFI	Type	ø 41 mm	Extension	Piping not insulated		Piping insulated
			Exhaust/Air	ø 41 restrictor	NO restrictor	ø 41 restrictor	NO restrictor
Twin Pipe	C12 (xy)
Systems	C32 (xy)	L max = 30 m	78 m	1.2 m	2.5 m	8 m	11.0 m
ø 80/80	C42 (xy)

L = Sum of the total length of exhaust + air intake piping.

TABLE 2.1

		In calculating the lengths of the pipes, the
TWIN PIPE		FIG. 2.10 maximum length “L” must also take into
	SYSTEMS	consideration the values for the exhaust/air
		intake end terminals, as well as 90° elbows for
		coaxial systems.
2.10	ROOM THERMOSTAT
	CONNECTION

To connect a room thermostat and/or time clock, it is necessary	A
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.

10