Room Thermostat Connection - Ariston UNO Installation Instructions Manual

Wall-hung combination boiler
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T
P
WIN
IPE
S
YSTEMS
F
. 2.12
IG
2.10 R
T
OOM
HERMOSTAT
C
ONNECTION
1
2
To connect a room thermostat, it is necessary to:
1. - Remove the front panel as indicated in section 3.3.
2.- Rotate the control panel (see fig. 1).
3. - Rotate the two plastic screws (see fig. 2).
4. - Pull foward the P.C.B. (see fig. 3).
3. - Insert the thermostat cable through the cable grommet and fasten it by means of the
cable-clamp provided.
4. - Then connect the thermostat wires to the terminal block.
5.- If a remote time clock is to be fitted, disconnect the integral time clock from the P.C.B.
6. - Using a volt-free switching time clock, connect the switching wires from the time clock
following points 1-4 above.
7. - If using an external time clock and room thermostat, these must be connected in
series as points 1-6 above.
Note: Only a two-wire type room thermostat can be used.
An anti-frost device is built-in to the appliances electronic regulation
system.
In calculating the lengths of the pipes, the
maximum length "L" must also take into
consideration
the
exhaust/air intake end terminals, as well
as 90° elbows for coaxial systems.
The C52 types must comply with the
following requirements:
1 - The exhaust/ air intake pipes must
have the same diameter of
2 - If elbows are to be inserted into the
air intake and/or exhaust system, the
calculation of the overall length must
take into consideration the values for
each elbow, see the F
A
M
CCESSORIES
ANUAL
3 - The exhaust pipe must protrude by at
least 0.5 m above the top of the roof
in the event that it is located on the
opposite side of the building to the air
intake (this condition is not obligatory
when the air intake and exhaust are
located on the same side of the
building).
4 - It is not possible to install the C52 type
flues on opposite sides of the building
3
values
for
the
80 mm.
ø
P
L U E
I P E
.
12

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