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. in a wall recess or under a
balcony)
Not in the vicinity of windows, doors, exhaust air vents,
external lighting or heat pumps
Not to be exposed to direct sunlight at any time of year
3.2.4
Installing the strap-on sensor
It is only necessary to mount the strap-on sensors if they are
included in the scope of supply of the heat pump, but have not
yet been installed.
The strap-on sensors can be fitted as pipe-mounted sensors 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. 3.6:
Mounting a pipe-mounted sensor
3.2.5
Hot water distribution system
The compact manifold and the dual differential pressureless
manifold function like an interface between the heat pump, the
heating distribution system, the buffer tank and, in some cases,
even the hot water cylinder. A compact system is used to simplify
the installation process so that a lot of different components do
not have to be installed individually. Further information can be
found in the relevant installation instructions.
Compact manifold
The return flow sensor can remain in the heat pump, or should be
installed in the immersion sleeve. The remaining empty space
between the sensor and the immersion sleeve should be filled
completely with heat transfer compound.
EN-4
Sensor lead: Max. length 40 m; min. core cross section
0.75 mm²; outer diameter of the cable 4-8 mm.
Fig. 3.7:
Dimensions of the strap-on sensor standard NTC-2 in a metal
casing
Fig. 3.8:
Dimensions of the strap-on sensor NTC-10 in a plastic casing
Fig. 3.9:
Dimension of the strap-on sensor NTC-10 in a metal casing
Dual differential pressureless manifold
In order for the heating circuit pumps of the generator and
consumer circuits to supply the flow to the return flow sensor, this
must be installed in the immersion sleeve of the dual differential
pressureless manifold.