Technical data

Installation, user and maintenance manual – AY Condensing line, AY series
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The appliance is a Range Rated boiler: the power delivery of the appliance can be
adapted to the real system requirements by regulating the nominal gas ow (nominal
thermal input).
The appliance, which can produce hot water up to 80°C, is suited to installation in all
hot water production systems for heating, sanitary use (ACS), process needs, air han-
dlers, etc. Since the appliance is of the 2 pipe variety (water inlet and outlet), it can be
adapted to a variety of purposes (e.g.: both heating and ACS) by bleeding the system.
2.3 TECHNICAL MANUFACTURING CHARACTERISTICS
The appliance is supplied with the following technical manufacturing characteristics,
control and safety components:
premixed multigas burner with low NOX and CO emissions;•
stainless steel plate exchanger, acting as a hydraulic separator;•
AY10 microprocessor controller with LCD display and control knob (Figure 3.1 •
On-board electronics → 19);
S70 controller (Figure 3.1 On-board electronics • → 19);
ionisation-based ame controller;•
gas solenoid valve with double shutter;•
system water antifreeze function;•
internal circuit antifreeze function;•
automatically resettable water temperature limiting thermostat;•
single-use fumes limiting thermostat (thermal cutout);•
system circuit water dierential pressure switch (PD1);•
internal circuit water dierential pressure switch (PD2) with anti-sticking •
function;
overpressure valve on internal circuit, set to trip at 3 bar;•
internal circuit expansion tank;•
automatic and manual air bleeds on the internal circuit;•
fumes pipe with terminal, for type B53P conguration.•
condensate discharge siphon (with antifreeze function).•
2.4 TECHNICAL DATA
Table 2.1 – TECHNICAL CHARACTERISTICS
AY00-120
OPERATION WHEN HEATING
Thermal capacity
Nominal (1013
mbar - 15°C)
kW 34,9
MEAN kW 21.5
MIN kW 8.0
OPERATING POINT: Tm80/Tr60 and nominal thermal capacity
Available power kW 34.4
Eciency % 98.6
Operational heat
loss to jacket
% 0.44
Operational heat
loss to ue
% 2.54
Eciency classes ****
NOx emission class 5
Hot water delivery temperature
maximum °C 80
Minimum °C 25
Nominal °C 60