Fondital NIAS BTN 28, Инструкция по установке, эксплуатации и обслуживанию

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2 Technical characteristics
and dimensions
2.1 Technical characteristics
NIAS is a gas boiler with
atmospheric gas burner and water
storage tank; it is available in the
following versions:
24
24 kW heat output;
28 28 kW heat output;
TN
natural draught open
combustion chamber;
TFS
forced draught, sealed
combustion chamber;
All versions have electronic ignition.
Models in the NIAS series:
NIAS BTN 24 open combustion
chamber, natural draught,
electronic ignition;
NIAS BTFS 24 sealed combustion
chamber, forced draught, electronic
ignition;
NIAS BTN 28 open combustion
chamber, natural draught,
electronic ignition;
NIAS BTFS 28 sealed combustion
chamber, forced draught, electronic
ignition;
NIAS boilers comply with the
following EEC directives:
Gas directive 90/396/EEC dated 29
June1990;
Yield Directive 92/42 EEC dated 21
May 1992;
EMC Directive 89/336/EEC dated 3
May 1989 amended by Directive
92/31/EEC dated 28 April 1992;
European Community’s Low
Voltage Directive 73/23/EEC dated
19 February 1973 amended by
Directive 93/68/EEC dated 22 July
1993;
NIAS boilers are equipped with
safety features, according to
applicable laws.
The main technical features of
NIAS boilers are below
summarized.
* High performance copper heat
exchanger;
* Vertical enamelled water storage
tank, 60 l capacity with helicoidal
steel coil heat exchanger;
* Sacrificial magnesium anode;
* Electronic ignition;
* Electronic flame modulation;
* Adjustable heat output control
(CH only)
* Adjustable minimum heat output
control;
* Ignition train electronic
adjustment;
* Night temperature reduction
function;
* Anti-freeze function;
* Priority switch for DHW;
* Pump anti-locking function;
* Pump post-circulation function
both in CH and DHW systems;
* Safety limit thermostat (105 °C);
* Motorized three way valve;
* Three-speed circulating pump
with deareator;
* Manual air purging valve for
system filling;
* 7.5 liter expansion vessel;
* Water inlet tap;
* Low water pressure safety switch;
* IPX4D protection class control
panel;
* Thermometer;
* Pressure gauge;
* Power supply and emergency
shutdown lights;
* DHW temperature regulator
(40/60 °C);
* CH temperature regulator (35/85
°C).
* Reset button;
* Summer/OFF/Winter/Anti-freeze
boiler selector;
* Boiler installation template.