Safety
Safety Devices
Fröling Heizkessel- und Behälterbau Ges.m.b.H, Industriestraße 12, A-4710 Grieskirchen Page 9
Tel. +43 (0) 7248 606-0 Fax +43 (0) 7248 606-600 info@froeling.com www.froeling.com Edition: 23.03.2005
2.3 Safety devices
9
Main switch For shutting down the entire system
´ All components are switched off and powered down
10
Safety Temperature Limiter
À Devices for Preventing the Boiler from Over-heating.
11
Fusing Properly fuse the control system and any electronic
components
When changing fuses, ensure the fuses are rated for
the rated current (10AT).
Devices for Preventing the Boiler from Over-heating
1. Thermal Discharge Safety Device
When 100 °C is reached, this device opens a valve and sends
cold water to the safety heat-exchanger in order to decrease
the temperature.
2. Safety Temperature Limiter
Switches off the blower fan at the maximum boiler temperature
of 105 °C. The pumps continue to run.
Once the temperature has fallen to under approx. 95 °C,
the safety temperature limiter 10 can be unlocked
mechanically.
3. Safety valve
Protection against over-heating:
When the boiler pressure reaches approximately 3 bar, the
safety valve opens and the heated water is blown off in the
form of hot water or steam.
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