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The correct positioning of the outdoor sensor is of fundamental importance for proper climate control operation.
The sensor must be installed outside the building to be heated, at approx. 2/3 the height of the NORTH or NORTH WEST
façade and far from flues, doors, windows and sunny areas.
Fastening the outdoor sensor to the wall
- Unscrew the sensor protection box cover, turning it
anticlockwise to access the terminal board and fasten-
ing holes
- Trace the fastening points using the box as a template
- Remove the box and drill the holes for the 5x25 expan-
sion plugs
- Fix the box to the wall, using the two dowels supplied
- Insert a two core cable (with cross section between
0.5 and 1mm
, not supplied) to connect the sensor to
2
terminals 20 and 21 (see the diagram on the previous
page)
- Connect the two cable wires to the terminal board with-
out having to identify the polarities
- Fully tighten the cable gland nut and close the protec-
tion box cover.
b
The sensor must be positioned on a smooth section of wall; in the case of exposed brickwork or an uneven wall,
the smoothest possible area must be used
b
The connection cable between the outdoor temperature sensor and the control panel must not have joints; if nec-
essary, they should be plated and adequately protected. It is recommended a shielded cable be used.
b
Any channelisation of the connection cable must be separated from live cables (230Vac).
Correspondence table
Temperature measured (°C) - Resistance value of the outdoor temperature sensor (Ω).
T (°C)
R (Ω)
-50
43907
-45
31840
-40
23374
-35
17359
-30
13034
-25
9889
-20
7578
CONNECTING THE OUTDOOR TEMPERATURE SENSOR
T (°C)
R (Ω)
-15
5861
-10
4574
-5
3600
0
2857
5
2284
10
1840
15
1492
T (°C)
R (Ω)
20
1,218
25
1000
30
826.8
35
687.5
40
574.7
45
482.8
50
407.4
T (°C)
R (Ω)
55
345.3
60
293.8
65
250.8
70
214.9
75
184.8
INSTALLER
45
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