“Combi 4” / “Combi 3” / “Combi C”
1 Presetting:
1.1 Remove protection cap.
1.2 Close the valve disc by turning a 4 mm spanner (1)
clockwise (drawing 1).
1.3 The preset the valve disc by turning the 4 mm spanner (1)
anticlockwise according to the number of turns selected
from the flow chart (drawing 2).
1.4 Finally, using a screwdriver, turn the lock nut clockwise until
stop (drawing 3, only “Combi 4 and C”).
Important: In case of subsequent modification of the preset-
ting, the lock nut should first be unscrewed by turning a screw-
driver (drawing 3) slightly anticlockwise. Afterwards the preset-
ting can be changed with the help of the 4 mm spanner (1).
Note: The chosen presetting will not be changed by draining or
isolating the radiator.
2 Isolating:
2.1 Remove protection cap.
2.2 Close the valve disc by turning a 4 mm spanner (1)
clockwise (drawing 4).
Attention: Do not twist the lock nut as otherwise the chosen
presetting is no longer given when opening the valve (only
“Combi 4 and C”).
3 Draining:
3.1 First close the thermostatic radiator valve in the flow pipe.
3.2 Isolate the “Combi 4/3/C” as described above (point 2).
3.3 Loosen the valve insert by turning a 10 mm spanner (1)
anticlockwise (max.
1
⁄
4
thread)) (drawing 5).
Attention: The lock nut has to be screwed in sufficiently so
that the 10 mm spanner can be inserted up to 4 mm at least.
3.4 Fit the service tool (2) to the “Combi 4/3/C” and connect a
hose (drawing 6).
Note: Tighten the 19 mm compression nut closely (max. 10 Nm).
3.5 Open the vent screw at the radiator. Fit the 10 mm spanner
(1) to the service tool (2) and drain the radiator by turning
anticlockwise (drawing 6).
Attention: The max. differential pressure during filling and
draining is 4 bar.
4 Filling:
by using the service tool
4.1 If the radiator was just drained with the service tool (2), no
modifications to the tool or the valve are required. The radia-
tor can now be filled through the hose (radiator now has to
be bled).
Attention: The max. differential pressure during filling and
draining is 4 bar.
4.2 With the filling operation completed, fit a 10 mm spanner (1)
to the service tool (2) again and close the insert by turning
clockwise (drawing 7).
4.3 Remove the service tool (2) and tighten insert using the 10
mm spanner (1) (max. 10 Nm) (drawing 8).
via the heating system
4.4 Close the valve disc by turning a 10 mm spanner (1) clockwi-
se and tighten it (max. 10 Nm) (drawing 8).
4.5 Open the valve disc by turning a 4 mm spanner (1) anticlock-
wise until stop (drawing 2). Bleed radiator.
4.6 Replace protection cap.
“Combi 2”
1 Presetting:
For presetting the “Combi 2” proceed as described above but
using a 6 mm spanner (“Combi 4 and C”, point 1).
2 Isolating:
For isolating the “Combi 2” proceed as described above but
using a 6 mm spanner (“Combi 4 and C”, point 2).
Bild 1
Bild 2
Bild 4
Bild 6
Entleeren
Bild 8
Bild 3
Bild 5
Bild 7
Drawing 1
Drawing 2
Drawing 3
Drawing 4
Draining
Drawing 5
Drawing 6
Drawing 7
* SW = Spanner size
Drawing 8
presetting
closing
closing
opening
opening
SW* 19
closing
closing
