Junkers 7 736 503 876 Mode D'emploi page 8

Installation
Boiler temperature connector NTC
▶ Remove the temperature sensor NTC [1] from the boiler's
cylinder.
▶ Connect the two wires of the additional cable [2] to the
cylinder connection NTC.
▶ Connect a free wire end of the additional cable to the
terminal "BOIL OUT" of the terminal box.
▶ Connect the other free wire end of the additional cable to
the terminal "BOIL IN" of the terminal box.
Fig. 10
8
1
2
6720805338-25.1V
Install the temperature sensor in the middle of the cylinder
Ensure the temperature sensor and cylinder make
good contact.
▶ Make sure that the temperature sensor is
positioned correctly in the sensor pocket so that
the temperature will be measured accurately.
▶ Install the installation set [1], the temperature sensor NTC
of the accessory [2] and position them as shown in Fig. 11.
▶ Push the temperature sensor into the sensor pocket as far
as it will go.
▶ Fasten it using the cable tie supplied.
▶ Secure fastening clip [3].
▶ Connect the terminals of the temperature sensor NTC in
the terminal box to the "NTC TANK" terminals.
Fig. 11
Connecting coil temperature sensors
Ensure the temperature sensor and coil make good
contact.
▶ Thermally insulate the temperature sensor so
that the temperature at the coil inlet can be
measured accurately.
▶ Position the temperature sensor NTC of the accessories
[1] as shown in Fig. 12.
▶ Fasten the temperature sensor NTC to the water pipe using
the plastic spiral [2] supplied.
▶ Wrap the temperature sensor in insulation [3].
▶ Secure the insulation using the 2 cable ties [4] supplied.
2.
1.
6 720 821 590 (2019/10)