Lamborghini Caloreclima BANOX 24 PLUS MB W TOP U/IT, Installation And Maintenance Manual

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When the unit is switched on (or when it is reset), and where no heat has been requested, the system runs
through the following procedure:
5 second safety pause;
15 seconds 3-way valve activation;
60 seconds circulator activation;
circulator and 3-way valve switched off.
This cycle is run every 24 hours and 24 hours after the last heat request. The above operations ensure that the
components are put in motion at least once a day.
HEATING
The heating start-up cycle, after a period of inactivity, is as follows:
15 seconds 3-way valve activation;
pump activated;
air pressure switch contacts checked (they must be closed);
fan switched on;
when heat is requested pre-ventilation begins;
ignition transformer switched on and gas valve opened;
if flame detection reveals normal operation the fan runs for a few seconds at maximum power and then
modulation begins.
When heat is no longer requested the burner is switched off while the pump continues to run for 3 minutes
(post-circulation time). The 3-way valve is then disactivated.
If the flame is not detected the pre-ventilation/ignition cycle is repeated after a set safety period has elapsed
(repeated up to 2 times, after which the unit is shut down).
HOT WATER PRODUCTION
When hot water is requested the 3-way valve switches immediately to the hot water circuit.
When the burner is switched off the pump continues running for another two minutes after which it shuts down.
A hot water request is detected by a temperature sensor on the hot water circuit heat exchanger; this trips the
hot water production system when the sensor-detected temperature is lower than the parameter n
°
1 setting.
Modulation takes place immediately and proceeds as a function of boiler water return temperature.
When producing hot water, the burner goes out when the sensor-detected temperature exceeds set temperatu-
re.
DUAL FUNCTION (HOT WATER + HEATING)
If there is a request for hot water when heating is in progress, the 3-way valve diverts the water flow towards
the hot water heat exchanger (hot water has precedence over heating). When hot water is no longer required
the burner goes out and the pump continues running for another two minutes, then stops. The three-way valve
then diverts the water flow back to the heating circuit. The pump is then restarted and the heating function put
back into operation.
OPERATION
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ESQUEMA DE PRINCIPIO
DESCRIPCIÓN
CiR Circulador instalación
PSG Presostato de seguridad gas
PA Presostato aire
PH2O Presostato agua
E.A. Electrodo de encendido
E.R. Electrodo de detección
TRA Transformador
IG Interruptor general
VG1 Válvula gas 1
VG2 Válvula gas 2
VD Válvula de 3 vías
E/I Selector verano/invierno
TA Termostato ambiente
TB Termostato acumulador
SE Sonda exterior
SR Sonda retorno
SM Sonda ida
VN Ventilador
X2 Conector amp. 13 vías
X3 Conector amp. 6 vías
X4 Conector amp. 2 vías
X7-X8 Conector conexión ordenador
3AT Fusible 3A (electroventilador)
2AF Fusible 2A (circuitos 24 V)
2AF(F1) Fusible alimentación 230 V (2A)
L Línea 230 V 50 Hz
N Neutro
C Conector Wieland
FA Filtro antiparasitario