nvent Raychem HWAT-ECO V4, Manual

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Resistance of standard boiler sensor KTY81-210
Temperature
Resistance
10°C 1772 Ω
20°C 1922 Ω
30°C 2080 Ω
40°C 2245 Ω
50°C 2417 Ω
60°C 2597 Ω
5. APPENDIX
5.1 Country code
The country code must be entered in order to refer to a standard
insulation thickness used in a particular country. The lower the insulation
thickness, the greater the heat loss and, as a result, the higher the power
consumption.
Two groups of countries depending on insulation thickness:
Fig. 8 Typical insulation thickness (mm) depending on pipe diameter
and country, Insulation = 0.035W/mK
Pipe diameter
Country
15 mm
1/2’’
20 mm
3/4’’
25 mm
1’’
32 mm
1 1/4’’
40 mm
11/2’’
50 mm
2’’
Austria, Czech
Republic, Denmark,
Finland, Germany,
Hungary, Ireland,
Netherlands,
Norway,
Poland, Russia,
Sweden,
Switzerland, United
Kingdom 20 20 30 30 40 50
Belgium, France,
Italy, Spain 9 9 13 19 19 32
If insulation thickness or pipe diameter deviate from the above, complete
quick setup and go to 5.2.
5.2 Pipe Size, Insulation and Temperature
Pipe size and insulation characteristics have a considerable influence
on the temperatures achieved by the HWAT-ECO and the self-regulating