Button Lock; Setting The Control Panel; General - Worcester GREENSTAR 24 Installation, Commissioning And Servicing Instructions

▶ Leave appliance switched on, set CH flow temperature control
position 1 at least.
3
5
2
1 6
max
Fig. 55 Frost protection
▶ Add a suitable inhibitor with anti-freeze to the central heating system
water ( page 8) and drain the DHW system.
Additional instructions are contained in the operating instructions for
the heating controller.
Frost protection for hot water cylinder:
▶ Turn the temperature control for hot water
as the stop.
3 4
5
2
1 6
max
Fig. 56
6.14

BUTTON LOCK

The button lock affects the CH flow temperature control, the hot water
temperature control and all buttons except the main switch and the reset
button, chimney sweep button.
To activate the button lock:
▶ Press key until and the heating flow temperature are shown
alternately on the display.
3 4
2 5
1 6
max
Fig. 57 Button lock
To deactivate the button lock:
▶ Hold down the key until the display shows only the CH flow
temperature.
7

SETTING THE CONTROL PANEL

7.1

GENERAL

The Control unit provides the capability to adjust and check of many
appliance functions.
For an overview of the service functions see chapter 7.2
6 720 811 922 (2014/07)
eco
3 4
e
2
6
1
min max
6 720 615 065-14.1O
anti-clockwise as far
reset
eco
3
e
2
1
6
min max
6 720 612 660-16.1R
reset
eco
4
3
e
2
6
1
max
min
6 720 615 065-17.1O
to
2
1
3 4
2
1
Fig. 58 Overview of the controls
[1] Central Heating boost button
[2] Service key
[3] Display
[4] eco key, service functions "up"
[5] Key lock, service functions "down"
SELECTING A SERVICE FUNCTION
The service functions are subdivided into two levels ( tables 21
and 22 on page 34).
▶ Hold down the service key
The display shows a code such as 1.A (service level 1).
▶ Press eco key and key lock simultaneously until a code such as 8.A
appears (service level 2).
▶ Press key lock or eco key until the required service function is
displayed.
▶ Press and release the Central Heating boost button
The Central Heating boost button
shows the parameter for the selected service function.
ADJUSTING A VALUE
▶ Press key lock or eco key until the required service function value is
displayed.
▶ Enter the value on the "Control unit settings" label supplied and affix
the label in a clearly visible position on the appliance.
SAVING A VALUE
▶ Hold down the Central Heating boost button
shows .
The unit automatically exits the service level if no key is
pressed for 15 minutes.
EXITING THE SERVICE FUNCTION WITHOUT SAVING VALUES
▶ Briefly press the Central Heating boost button
The light in the Central Heating boost button
RESETTING THE APPLIANCE
▶ Press reset for 3 seconds and release. When the key is released, the
appliance restarts without resetting parameters (parameter
reset).
RESTORING VALUES TO STANDARD SETTING
To restore all values on service levels 1 and 2 to their standard settings:
▶ On service level 2, select service function 8.E and save value 00. The
appliance starts with the standard setting.
Setting the control panel
reset
eco
3 4
e
5 2
1
6
6
max
max min
6 720 615 065-19.1O
until it illuminates.
.
illuminates and the display
until the display
.
will extinguish.
3
4
5
33