Table of Contents
Advertisement
Installation
9. Fit the new temperature sensor.
10. Carry out the electrical connection of the new tem-
perature sensor as described in section 5.5.
5.4
Replacement of the temperature
sensor for the potable water circuit
3
2
1
Illust. 3: Potable water circuit
(1)
Temperature sensor for potable water (hot)
(2)
Fill and drain ball valve for potable water (cold)
(3)
Isolating ball valve for potable water (hot)
(4)
Isolating ball valve for potable water (cold)
(5)
Temperature sensor for potable water (cold)/
circulation
(6)
Fill and drain ball valve for potable water (hot)
1. Close the isolating ball valve for potable water (cold)
(4).
2. Close the isolating ball valve for potable water (hot)
(3).
3. When using a circulation pipe, close the isolating
ball valve of the circulation pipe.
4. Unscrew the caps of the fill and drain ball valves for
potable water (cold) (2) and potable water (hot) (6).
5. Connect a draining hose to the fill and drain ball
valve for potable water (hot) (6).
6. Open the fill and drain ball valve for potable water
(hot) (6) first and then the fill and drain ball valve
for potable water (cold) (2) to drain off the potable
water circuit.
7. Loosen the collar nut of the temperature sensor for
potable water (cold)/circulation (5).
8. Carefully pull the temperature sensor for potable
water (cold)/circulation out of the fitting.
9. Let the defective sensor hang down in the electri-
cally connected state.
8
4
5
6
Temperature sensor PT1000
Replace the O-ring.
10. Fit the new temperature sensor.
11. Carry out the electrical connection of the new tem-
perature sensor as described in section 5.5.
5.5
Electrical connection of the
temperature sensor
NOTICE
Damage to the electrical lines and con-
nections caused by tensile forces
Electrical lines and/or connections can break
if excessive tensile forces are applied.
f Ensure that the cables connected to the
controller are not subjected to tensile
forces.
Illust. 4: Removal of the controller from the lower
shell
138116384-V01.04.2020
Advertisement
Table of Contents
