E-6
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3.2
3.2.3 Mounting the External Temperature Sensor
The temperature sensor must be mounted so that all weather
conditions are taken into consideration and the measured value
is not falsified.
Installation:
On the external wall of a heated room used as living space,
if possible on the north or north-west side of the building
Not in a “sheltered position” (e.g. niche in a wall or under a
balcony)
Not in the vicinity of windows, doors, exhaust air vents,
external lighting or heat pumps
Must not be exposed to direct sunlight at any time of year
Fig. 3.6: Dimensions of the external sensor in insulated casing
3.2.4 Mounting the Return Flow Temperature Sensor
It is only necessary to mount the return flow sensor if it is
included in the scope of supply of the heat pump, but has not yet
been installed.
The return flow sensor can be fitted as a pipe-mounted sensor or
installed in the immersion sleeve of the compact manifold.
Remove paint, rust and scale from heating pipe.
Coat cleaned surface with heat transfer compound (apply
sparingly).
Attach sensor with hose clip (tighten firmly as loose sensors
can cause malfunctions) and thermally insulate.
Fig. 3.7: Mounting a pipe-mounted sensor
Fig. 3.8: Dimensions of the standard NTC-2 return flow sensor in a metal
casing
Fig. 3.9: Dimensions of the NTC-10 return flow sensor standard in a plastic
casing
Compact manifold:
The return flow sensor should be installed in the immersion
sleeve if a compact manifold is used in combination with the wall-
mounted heat pump manager. Any empty space between the
sensor and the immersion sleeve should be filled completely with
heat transfer compound. Further information can be found in the
compact manifold installation instructions.
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