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Installation, user and maintenance manual
– AY Condensing line, AY series
11
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 flow (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 flame 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 differential pressure switch (PD1);
•
internal circuit water differential 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 configuration.
•
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
Efficiency
%
98.6
Operational heat
loss to jacket
%
0.44
Operational heat
loss to flue
%
2.54
Efficiency classes
****
NOx emission class
5
Hot water delivery temperature
maximum
°C
80
Minimum
°C
25
Nominal
°C
60
Содержание AY Series
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