4 operating the appliance, 1 control panel, 1 control panel b3 – DE DIETRICH DTG 330 User Manual
Page 6: Operating the appliance, Control panel b3
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DTG 330
15/12/08 - 300011852-001-C
4. Operating the appliance
4 Operating the appliance
4.1 Control panel
4.1.1
Control panel B3
1. General ON (1) / OFF (0) switch
2. Burner alarm indicator + Reset button
This light comes on when the safety control box is in safety
lockout (out of order).
3. Switch TEST-STB/
.
/
%
.
: Heating and domestic hot water are in operation
%
: Only domestic hot water is in operation
Position TEST-STB: Temporary action to test the safety
thermostat
4. Safety thermostat with manual reset
Set at 110° C
5. Timed circuit breaker (4 A)
6. Pump shutdown switch
7. Electronic thermostat (30 to 90 °C)
8. "Heating" on light
9. Location for flue gas thermometer (optional)
10. Switch for selecting the number of burner stages
(2-stage boilers)
11. Digital display
- Light 8 lit: Boiler temperature display
- Light 13 lit: Domestic hot water display
When preparing domestic hot water
12. Electronic thermostat (10 to 80 °C)
13. "Domestic hot water" on light
14. Location for hour run meter (Option)