11
Illustr. 8 Presetting
Marking
Presetting value
x 10 [l/h] = 170 l/h
6.2.2 Presetting
Set presetting to the required value by use of the
presetting key (pos.4, illustr.7). Setting can only be
carried out with the help of the enclosed presetting
key which is fitted to the handwheel (pos. 2a, illustr.
7). This will prevent unauthorised tampering.
The required setting must be in line with the marking
(see illustr. 8). The presetting is infinitely adjustable
and can be modified whilst the system is in operation;
water will not escape.
6.3
Thermostat installation
The protection cap must not be used for
permanent shut-off of the thermostatic valve
against system pressure (for instance while
radiator is removed). The high restoring force of
the valve stem will cause damage to the
protection cap. Protect the outlet of the fitting
with a metal cap or install a bridging fitting.
Oventrop bridging fitting, e.g. item no. 1016452
NOTICE
Do not fit the thermostat until all building work
has been completed to avoid damage to the
thermostat.
NOTICE
1. Turn the handgrip of the thermostat anticlockwise
until figure “5” is in line with the indicator mark.
2. Align the thermostat so that the indicator mark
faces upwards or is well visible.
3. Screw the collar nut of the thermostat onto the
thread of the thermostatic valve and hand tighten
the collar nut.
4. Tighten the collar firmly by use of a spanner (size
32). Now set the thermostat to the required room
temperature.
6.4
Isolating, draining and filling
6.4.1 Isolating
1.
Remove thermostat.
2.
Close thermostatic valve with the help of the
protection cap.
Paragraph 6.2.1 “Advice regarding protection
cap” must be observed.
3.
Remove cap from the isolation.
4.
Close isolating stem by turning a 4 mm spanner
clockwise.
5.
Refit cap.
6.4.2 Draining the radiator
1.
Close the fitting as described under point 6.4.1.
2.
Loosen the valve insert by turning a 10 mm
spanner anticlockwise (max. ¼ thread).
3.
Fit the service tool (item no. 1090551) to the
connection of the fitting and connect a hose.
Tighten the 19 mm compression nut closely
(max. 10 Nm).
4.
Fit the 10 mm spanner to the service tool and
drain the radiator by turning anticlockwise.
Do not use excessive for during thermostat
installation to avoid damage to the thermostat
and the thread.
NOTICE
A max. permissible differential pressure of 4 bar
must not be exceeded during filling and draining.
NOTICE
6.4.3 Filling of the radiator
1.
If the radiator was just drained with the service
tool, no modifications are required (radiator now
has to be bled).
2.
With the filling operation completed, fit the
10 mm spanner to the service tool again and
close the insert by turning clockwise.
3.
Remove the service tool and tighten insert using
the 10 mm spanner (max. 10 Nm).
4.
Open the isolating stem by turning a 4 mm
spanner anticlockwise until stop. Bleed
radiator.
5.
Refit cap.
6.4.4 Filling of the radiator via the heating system
1.
Close the valve disc by turning a 10 mm spanner
clockwise (max. 10 Nm).
2.
Open the isolating stem by turning a 4 mm
spanner anticlockwise until stop. Bleed
radiator.
3.
Refit cap.
