Table of contents
3
Greenstar 4000 – 6 720 891 162 (2020/09)
Replacing the PRV . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Replacing the pressure sensor. . . . . . . . . . . . . . . . . . . .68
Pressure gauge removal . . . . . . . . . . . . . . . . . . . . . . . . .69
Replacing the control unit . . . . . . . . . . . . . . . . . . . . . . .69
10 Fault finding and diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
Operating and fault displays . . . . . . . . . . . . . . . . . . . . .70
10.1.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
10.1.2 Operating/Fault code table . . . . . . . . . . . . . . . . . . . . . .71
10.1.3 Faults that are not displayed . . . . . . . . . . . . . . . . . . . . .78
11 Environmental protection and disposal . . . . . . . . . . . . . . . . .81
12 Data Protection Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
13 Technical Specifications/Logs . . . . . . . . . . . . . . . . . . . . . . . . .82
Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
Energy consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . .84
13.2.1 Product data on energy consumption . . . . . . . . . . . . . .84
Component resistance characteristics . . . . . . . . . . . . .88
13.3.1 Sensor values - Flow temperature sensor . . . . . . . . . . .88
13.3.2 Sensor values - Cylinder temperature sensor . . . . . . . .88
13.3.3 Sensor values - Flue overheat thermostat. . . . . . . . . . .88
13.3.4 Sensor values - Heat exchanger assembly
temperate limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
13.3.5 Sensor values - Outside temperature sensor . . . . . . . .88
Code plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
Pump characteristic map of the heating pump . . . . . . .89
Internal wiring of the appliance . . . . . . . . . . . . . . . . . . .90
Gas Boiler System Commissioning Checklist and
Warranty Validation Record . . . . . . . . . . . . . . . . . . . . . .92
Inspection and maintenance checklist . . . . . . . . . . . . .93
Service and Interim Boiler Work Record . . . . . . . . . . . .94