10
If the appliance is to be disposed of, contact Robur S.p.A. for its correct disposal.
If the appliance is to be sold or transferred to another owner, ensure that this “Installa-
tion, user and maintenance manual” is handed over to the new owner and installation
technician.
2�2
OVERVIEW OF OPERATION
The appliance powered by 230 V 1N 50 Hz electrical power - .
During operation, combustion products are exhausted via the discharge terminal, with
vertical outlet, at the top of the appliance. Combustion product condensate is dischar-
ged via the special pipe which passes through the service plate (see Figure 2.3 SERVICE
PANEL: Series AY - AY Condensing line
→
15).
The appliance is equipped with a plate exchanger which separates the following
hydraulic circuits:
the
•
internal circuit dedicated to the combustion unit and factory charged to
enable storage down to -30°C;
the
•
system circuit. The section of circuit running from the exchanger to the
hydraulic unions on the service plate is itself a part of the system circuit.
Control and management of operation of the appliance occurs via the on-board
electronics through the microprocessor control board (see Figure 3.1 On-board
electronics
→
19).
Control and management of operation of the appliance may also take place via the
Direct Digital Controller (see Figure 2.1
→
10) available as an accessory.
For instructions regarding the use, configuration and programming of the DDC, refer
to the two manuals supplied with the unit.
DDC configuration/programming operations must be carried out by an authorised Ro-
bur Technical Assistance Centre (TAC) during initial activation procedures and accor-
ding to the instructions supplied by the manufacturer.
Figure 2�1
Direct Digital Control (DDC)
LEGEND
DDC
Direct Digital Control
AY00-120: description and general characteristics
the appliance (see Figure 2.2 Dimensional drawing of model AY00-120
→
14) is a B53P
type high efficiency boiler ( star efficiency class as per Directive 92/42/CEE).
