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This is a wall-mounted condensing boiler, with a
heat output, with a closed circuit hot-water heating
boiler, type B
23
, C
13
, C
33
, with a linear power mod-
ulation, and a premixed burner with an air-gas ser-
vo-control system, meeting the PREN 483 (12.97)
and EN 487 (02.94), and PREN 677 (03.96):
- EC type approval N° CE-0085AR0323.
- Gas certification DVGW - VP 112 (01.95)
N° Q 022/003.
- Blue Angel Label.
The power output is controlled by an integrated
electronic regulator according to the heating sys-
tem’s requirements. The gas/air ratio is controlled
by a servo-valve system which maintains the correct
mixture across the full operating range.
A cover with a calm, restrained styling contains the
following components:
- A high performance condensing heat exchanger
made from tubular fins.
- A variable-speed fan (230 V AC - 50 Hz - 39 V
DC) controlled by the regulator.
- A premixed burner with a heat resistant stainless
steel grate.
- A 24 Volt gas valve unit with dual air pressure
valve control.
- A heating circuit safety valve (3 bar).
- A condensate siphon trap.
- “Overheat” safety cut-out with manual reset
(100 °C).
- Water pressure sensor.
- “Flue gas overheat” safety cut-out with manual
reset (85 °C).
- A circulating pump.
- A microprocessor-based control panel for provid-
ing boiler regulation and ensuring smooth run-
ning:
• Flame ionization monitoring.
• Radiator temperature adjustment.
• Pressure display.
• Operating sequence display.
• Fault display.
• On/off switch.
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