thermital 20105840, Руководство по установке и обслуживанию

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7
ENGLISH
GENERAL
The boiler is fitted with the following safety devices :
- autodiagnostics with display of error codes
- microprocessor control and display of NTC sensor
continuity
- 3-way valve anti-block function, activated automatically
after 24 hours from last movement
- pump anti-block function, activated automatically for 30
seconds, 24 hours after last pump cycle
- ionisation flame control device for shutting off gas sup-
ply in case of flame failure
- pressure transducer to prevent ignition in case of low
water pressure (with error display)
- maximum temperature thermostat to detect overheating
and ensure the safety of the entire system (with error
display requiring reset by OFF-RESET button)
- flue gas temperature sensor to shut down the burner if
flue gas temperature exceeds the safety threshold
- condensate drain siphon with float system to prevent
the escape of fumes
- condensate level sensor to shut down the burner if the
condensate level in the heat exchanger exceeds the
safety threshold
- flue gas venting safety system incorporated in the
pneumatic functioning system of the gas valve
- overtemperature diagnosis with double sensor on
central heating flow and return (temperature threshold
85°C)
- fan control with Hall effect speed sensor: fan speed is
continuously monitored
- first level of frost protection (for indoor systems) func-
tional even with the boiler in standby, activated when
water temperature drops below 7°C
- 3 bar central heating circuit safety valve.
- 8 bar domestic hot water circuit safety valve
- 6 bar solar circuit safety valve
- diagnosis of primary heat exchanger with cleaning
needed display
- circulation diagnosis by comparison of readings of cen-
tral heating flow and return temperature sensors
- solar collector/storage cylinder cooling protection
- solar circuit pump anti-block function.
b
The intervention of a safety device indicates a
potentially dangerous malfunction in the sys-
tem, and means that you must contact Technical
Assistance Service immediately.
a
Never start the boiler up even for a short period if
the safety devices are not functioning correctly or
have been tampered with.
b
Safety devices must only be replaced by Technical
Assistance Service using original spare parts.
Always check that the boiler is functioning correctly after
any repairs.
SAFETY DEVICES