Operation Manual

8
GTU C 330 16/09/2015 - 300017846-02
3. Technical description
3.3 Description of the S3 control panel
1. General ON (1) / OFF (0) switch
2. Switch Test-STB
Temporary action to test the safety thermostat
3. Boiler thermostats (30 to 90 °C)
The boiler thermostat regulates the boiler operating temperature.
4. Boiler thermometer
5. Location for flue gas thermometer (optional)
6. Timed circuit breaker (10 A) with delayed action and manual
reset
7. Safety thermostat with manual reset
(set to 110 °C)
The safety thermostat with manual reset ensures that the boiler
operates safely.

In the event that there is an abnormal rise in the
temperature in the boiler 110° C. Advise your installation
engineer.
76 1234
l
0
30
10A
M000484
5
TEST
STB