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Bosch Uni 3000 F Manual

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Mounting | 21
6 720 812 900 (2014/10)Uni 3000 F
Secure all cables with cable clips (scope of delivery of the control unit).
Carry out the following steps ( Fig. 23):
▶ Insert the cable clip, with inserted electrical cable in place, from the
top into the slot of the clip frame (step 1).
▶ Push cable clip down (step 2).
▶ Push against the clip (step 3).
▶ Flip the toggle up (step 4).
▶ Refit the cover ( Fig. 20 and Fig. 21, page 20) to the control unit.
▶ Tighten screws (Fig. 20 and Fig. 21, page 20) to secure the control
unit cover hood.
Fig. 23 Securing the electrical cable with cable clips
4.8 Installing temperature sensors
The boiler test point is located at the top of the boiler shell (location of
the test point Fig. 14, page 16 and Fig. 15, page 17).
▶ Insert sensor set ( Fig. 24, page 21, [3]) into the measuring
point [1] until it bottoms.
▶ Secure sensor set [3] with sensor retainer [4] in the test point.
▶ Roll up excess lengths of cables, capillaries (never kink) and sensor
leads and position them on the thermal insulation of the boiler body.
Fig. 24 Installing the temperature sensor set on the Uni 3000 F
(up to 1200 kW)
[1B] Test point (sensor well 3/4") for 420 kW to 1200 kW
[2] Sensor well in the test point
[3] Sensor set
[4] Sensor retainer
[5] Control unit
[6] Compensating spring
NOTICE: Risk of system damage from damaged
capillaries or incorrectly fitted temperature sensor!
▶ Ensure that the capillaries are neither kinked nor
squashed when uncoiling and routing them.
▶ Always push the temperature sensor right to the
bottom of the sensor pocket - ensuring an accurate
reading.
NOTICE: Risk of system damage from incorrect sensor
position!
The sensors of the high limit safety cut-out (STB) and of
the temperature controller (TR) must be fitted at the
installation location on the top of the boiler ( Fig. 24,
page 21 and Fig. 25, page 22).
▶ In the case of third party control units, match the
sensor immersion sleeve to the diameter of the
sensors used.
▶ Do not change the length of the immersion sleeve.
The temperature sensor of a temperature controller is
marked “TR”.
Note that installation of the temperature sensor set is
different when the CFB 810 control unit with the CME
930 auxiliary module is used.
6 720 615 362-20.1SL
Insert compensating spring [6] between the
temperature sensors to ensure a good contact between
sensor well [2] and sensor surfaces, and thereby a
reliable temperature transfer.
1A
1B
6 720 812 900-16.1TL
5
2
3
4
6
… 21 …


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