36
ROTEX GCU compact -
6
x
Control unit
6.3.1 Changing the flow temperature sensor / return
temperature sensor and pressure sensor
1. Remove the sound insulation hood (see chapter 4.4.3).
2. Remove the upper burner trim (see chapter 4.9.3).
3. Remove the connector from the sensor(s) to be removed
(fig. 6-3, item 2).
4. Unscrew the sensor(s) to be replaced with an open-ended
spanner SW 15.
5. Screw in the new sensor(s) and attach the cable(s) with
connector.
–
The connectors are shape-coded. Do not force the con-
nector!
–
Pay attention to the stipulated tightening torque (see
chapter 12.3 "Tightening torque").
6.3.2 Changing the internal mixer sensor for heating
support
The internal mixer sensor t
V2
for the heating support function
"ISM" is mounted underneath the heat insulation of the hydraulic
line components. The fig. 6-4 shows which components need to
be removed to reach the internal mixer sensor.
1. Remove the sound insulation hood (see chapter 4.4.3).
2. Remove the heat insulations and valve drive 3UV DHW
(fig. 6-5 to fig. 6-7).
WARNING!
There is a danger of scalding from heating water.
The sensor(s) are directly connected to the pres-
surised heating water.
Ɣ
Before removing the sensor(s), close the ball
cocks at the boiler flow and boiler return line and
depressurise the machine via the KFE cock.
WARNING!
Using an unauthorised temperature sensor causes the
safety and control functions to function incorrectly.
Ɣ
Replacement parts must at least satisfy the
technical requirements defined by the manufac-
turer. This is the case, for example, with original
spare parts.
WARNING!
There is a danger of scalding from heating water.
The sensor(s) are directly connected to the pres-
surised heating water.
Ɣ
Before removing the sensor(s), close the ball
cocks at the boiler flow and boiler return line and
depressurise the machine via the KFE cock.
1.A
Heat-insulating jacket
1.B
Heat-insulating jacket
2
Heat-insulating jacket
3
Valve drive 3UV DHW
4
Heat-insulating jacket
5
Heat-insulating jacket
6
Heat-insulating jacket
Fig. 6-4
Components to be removed to disassemble the internal mixer
sensor
*&8FRPSDFW[[
Fig. 6-5
Remove the heat insulations - 1.+ 2.
Fig. 6-6
Remove the valve drive and heat insulation - 3.+ 4.
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Содержание GCU compact
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