Diehl 775 Instrucciones De Montaje página 26

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For medium temperatures from 90°C or for T
meter application or heat meter with cooling tariff application) the cal-
culator must be removed and fitted at a sufficient distance from any
heat sources. A wall holder (supplied with meter) or a spacer holder
(optional) is available for this purpose.
Spacer holder
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It is recommended that shut-off valves are fitted before and after the
energy meter to simplify removing the meter.
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The meter should be installed in a conveniently accessible position for
service and operating personnel.
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Initial operation is to be carried out and recorded after installation.
4. Temperature sensor
Disconnectable temperature sensors or temperature sensors not
secured with their own calibration sticker must have their own
EU approval and CE label.
Handle the temperature sensor carefully!
The sensor cables are provided with coloured type plates:
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Red: Sensor in the hot line
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Blue: Sensor in the cold line
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The maximum cable length of the temperature sensors is 6 m for the
PT100 and 10 m for the PT500.
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The connecting cables must not be shortened or extended.
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Wall mounting
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Water Ambient