Worcester GR1000W 24 C NG

Table of contents
3
Greenstar 1000 – 6721835944 (2023/08)
Table of contents 1 Explanation of symbols and safety instructions
1.1 Explanation of symbols
Warnings
In warnings, signal words at the beginning of a warning are used to
indicate the type and seriousness of the ensuing risk if measures for
minimising danger are not taken.
The following signal words are defined and can be used in this document:
DANGER
DANGER indicates that severe or life-threatening personal injury will
occur.
WARNING
WARNING indicates that severe to life-threatening personal injury may
occur.
CAUTION
CAUTION indicates that minor to medium personal injury may occur.
NOTICE
NOTICE indicates that material damage may occur.
Important information
The info symbol indicates important information where there is no risk to
people or property.
Additional symbols
Table 1
1 Explanation of symbols and safety instructions . . . . . . . . . . . 3
1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 4
2 Product Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Appliance identification and serial number . . . . . . . . . . 5
2.2 Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Maintaining your appliance . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 Benchmark standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Prepare for operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Sealed heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1.1 Checking the system pressure. . . . . . . . . . . . . . . . . . . . . 6
3.1.2 Low pressure indication . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1.3 Constantly re-pressurising the system . . . . . . . . . . . . . . 6
3.2 System Gassing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Switching on/off the appliance . . . . . . . . . . . . . . . . . . . . 9
4.2 Control panel overview . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 Screen display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
4.4 Displayed Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . .10
4.5 Setting the flow temperature. . . . . . . . . . . . . . . . . . . . .10
4.6 Setting the DHW heating . . . . . . . . . . . . . . . . . . . . . . . .10
4.6.1 Set DHW temperature . . . . . . . . . . . . . . . . . . . . . . . . . .10
4.6.2 Setting comfort mode or ECO mode . . . . . . . . . . . . . . .11
4.7 Setting summer mode . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.8 Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5 Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.1 Setting frost protection . . . . . . . . . . . . . . . . . . . . . . . . .11
6 Clearances and ventilation information . . . . . . . . . . . . . . . . .11
6.1 Appliance clearances . . . . . . . . . . . . . . . . . . . . . . . . . . .11
6.2 Ventilation information. . . . . . . . . . . . . . . . . . . . . . . . . .13
7 Malfunction or failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
7.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
7.2 Extreme cold weather . . . . . . . . . . . . . . . . . . . . . . . . . .14
7.3 Fault 2980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
8 Environmental protection and disposal . . . . . . . . . . . . . . . . .15
9 Tips on energy saving. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
10 Your guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
11 Energy consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
11.1 Product data on energy consumption . . . . . . . . . . . . . .17
12 Data Protection Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Symbol Meaning
▶ a step in an action sequence
 a reference to a related part in the document
• a list entry
– a list entry (second level)