Installation
Compress Hybrid 7000i AW – 6721833053 (2020/09)
14
5.6 Fitting the outside temperature sensor
If the length of the temperature sensor cable outdoors is more than 15 m:
▶ Use screened cable.
A temperature sensor cable that runs outdoors must satisfy the following
requirements:
• Cable diameter: 0.5 mm
2
• Resistance: max. 50 ohm / km
•Number of conductors:2
• Maximum length: 50 m
▶ Mount the sensor on the coldest side of the house
(normally facing north).
– Protect the sensor from direct sunlight, draughts, etc.
– In addition, the sensor must not be installed directly under
the ceiling.
Fig. 22 Positioning the outside temperature sensor
5.7 Accessories
5.7.1 Mounting the flow temperature sensor
The installation of the flow temperature sensor T0 depends on the
design of the heating system.
No additional measures are required when the heating system is not
equipped with a buffer cylinder as the flow temperature sensor is already
integrated into the indoor unit.
If the heating system is equipped with a buffer cylinder:
▶ Install the flow temperature sensor T0 at the buffer cylinder.
▶ Electrical connection (Chapter 6.7.2).
Assembly downstream of the 3-way valve or at the buffer cylinder
If the flow temperature sensor is installed outside the indoor unit on the
buffer cylinder or downstream of the 3-way valve (e.g. when using a
heating circuit set), it must be removed from the indoor unit and
extended using a suitable extension cable of corresponding length
(H03VV-F 2x0.5 mm
2
) (Chapter 6.7.2).
5.7.2 Installing the heating circuit module
In the delivery scope a heating circuit without mixer can be controlled via
the controller.
If other heating circuits are to be installed, a heating circuit module is
required for each heating circuit.
▶ Install the heating circuit module, mixer, heating pump and other
components according to the selected system solution.
▶ Observe the relevant separate installation and operating instructions
when installing and adjusting the components.
▶ Electrical connection (Chapter 6.7.3).
5.7.3 Room temperature-dependent controller
In the default setting, the controller automatically regulates the flow
temperature depending on the outside temperature. A room
temperature-dependent controller can be installed for greater comfort.
▶ Electrical connection (Chapter 6.7.4).
5.7.4 Installing the accessories for the cooling mode
NOTICE
Damage to the indoor unit due to condensation
The indoor unit with mixer is not designed to be used in cooling mode
below the dew point.
▶ Only use the indoor unit in cooling mode above the dew point.
A prerequisite for using the heating system in cooling mode is that a room
sensor is installed in the heating system to prevent condensate formation.
There are two installation options:
• Room sensor with integrated humidity sensor
(CR10H or ModuLine 1010H).
• Room sensor (CR10 or ModuLine 1010) in combination with
humidity sensor in the heating system.
Use of a CR10H or ModuLine 1010H room sensor is recommended for
non-condensing cooling mode.
Installing a room sensor with integrated humidity sensor increases the
reliability of cooling mode since the flow temperature in this case is
automatically controlled via the control unit with reference to the current
dew point.
▶ Installing the room sensor with integrated humidity sensor
( instructions of the room thermostat).
▶ Electrical connection (Chapter 6.7.4).
If a room sensor is used without an integrated humidity sensor, an
additional humidity sensor must be installed in the heating system.
▶ Fit the room sensor in order to adjust the cooling mode of the heating
system ( observe instructions for the room thermostat).
▶ Fit the humidity sensor on the pipes of the heating system
( observe instructions of the humidity sensor).
▶ Electrical connection (Chapter 6.7.4).
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