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6.8.2
Connect the flow temperature sensor
The connection of the flow temperature sensor depends on the design of
the heating system.
If the heating system is equipped with a buffer cylinder:
▶ Disconnect the flow temperature sensor in the indoor unit from
connection T0 ( Chapter 12.4).
▶ Connect flow temperature sensor of the buffer cylinder to connection
T0 ( Chapter 12.4).
No additional measures are required when the heating system is not
equipped with a buffer cylinder as the flow temperature sensor has
already been connected in the indoor unit.
3.
1
Fig. 37 Remove the flow temperature sensor with cable
[1]
Flow temperature sensor with cable
[2]
Plug on the T0 connection
[3]
Clip on the flow pipe
Compress Hybrid 3400i AW – 6721861825 (2023/08)
Assembly downstream of the bypass or at the buffer cylinder
If the flow temperature sensor is installed outside the indoor unit on the
buffer cylinder or downstream of the bypass, it must be completely
removed from the indoor unit (Fig. 37) and if necessary extended
using a suitable extension cable (H03VV-F 2x0.5 mm
corresponding length, as described below (Fig. 38).
▶ Removing the front panel
▶ Unplug the plug on the T0 connection
▶ Remove the clip on the flow pipe
▶ Take the flow temperature sensor with cable out of the wiring harness
in the enclosure.
▶ Remove the plug from the cable (Fig. 38).
▶ Install the plug on the extension cable (Fig. 38) and plug into the
T0 connection.
▶ Route the extension cable through the cable feeds in the enclosure
and through an available cable feed in the base of the enclosure to the
outside (Chapter 12.4).
▶ Connect the extension cable to the cable of the temperature sensor
using a connection terminal (Fig. 38).
2.
Electrical connection
2
) of
1.
2
3
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