Replacing The Temperature Sensor (B2) Of The Water Chiller - Bosch EPS 708 Repair Instructions

6.13 Replacing the temperature sensor
(B2) of the water chiller
6.13.1 Disconnecting the temperature sensor elec-
trically
1. Switch off the EPS 708 at the main switch.
2. Secure the main switch so that it cannot be swit-
ched back on.
3. Unplug the mains plug or disconnect from mains
electricity.
4. Check that there is no power.
5. Remove the front cover of the test oil area.
6. Remove the side cover of the test oil area.
Fig. 65: Water chiller electrical cabinet
7. Remove the 4 fastening screws of the cover
(see Fig. 65, item 1).
8. Remove cover and place it to the side.
i
For an overview of the electrical cabinet compo-
nents, see section 4.8.
9. In the electrical cabinet, remove all covers from all
cable ducts.
10. On terminal block X1 (see Fig. 18, item 6), loosen
terminal COM and terminal B2, and remove the two
wires of the temperature sensor connection cable.
11. Remove all cable ties.
12. Open the cable gland (see Fig. 15, item 5).
13. Pull the temperature sensor connection cable out of
the electrical cabinet.
Robert Bosch GmbH
6.13.2
1
Fig. 66:
1. Carefully remove the insulating material from around
2. Carefully pull the temperature sensor out of the
6.13.3
1. Generously fill the thermowell into which the tempe-
2. Apply a generous amount of heat conducting paste
i
3. Insert the temperature sensor into the thermowell
4. Carefully reattach the insulating material around
Repair | EPS 708 | 41
Removing the temperature sensor
Temperature sensor installation location
the thermowell into which the temperature sensor is
inserted so that the thermowell is clearly visible. Do
not discard the insulating material. It will be reused
later.
thermowell.
Installing the temperature sensor
rature sensor will be inserted with heat conducting
paste (e.g. Rothenberger Rofrost Turbo heat conduc-
ting paste).
to the sensor bulb.
The temperature sensor must be inserted into the
thermowell to a depth of approx. 480 mm. The tem-
perature sensor is then in contact with the bottom
of the thermowell.
and push it to the bottom of the well
(approx. 480 mm).
the thermowell and secure/insulate it with adhesive
tape/insulating tape.
en
|
1 689 975 233 2018-05-08