Sinclair SDV4-140HB3P User Manual page 7

Operation icon
is on and does not display when the unit is off;
Mode area: Indicate the main unit operating mode;
Setting temperature: 2 status can be displayed:
Timing ON/OFF indication
Page 8;
Function icon
1) : Displays when water heater system connects to Modbus network;
2) : Displays when other heat source is provided to the system.
3) : Displays when water heater maintenance is needed. Press and hold
"MODE" key for 3 seconds to cancel the icon and timing will restart until
next maintenance;
4) : Displays when electric auxiliary heating function is on;
5) : Displays when check function is on; details refer to Page 14;
6) : Displays when ambient temperature is below 3°C which means the main
unit need anti-freezing action;
: Indicate unit ON and OFF status; the icon displays when the unit
: Indicate the timing information; details refer to
;