Ariston 47-116-17 Display Messages Shown During Normal Operation, Operating Parameters

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-the gas cock is closed;

-the electrical connection has been carried out in the correct manner. To allow the air to escape from the system, proceed as follows:

-turn on the On/off knob “D” and position the selector knob “A” in the “winter” position. The boiler pump will start up and three consecutive attempts will be made to ignite the burner. After the third attempt, the electronic system will shutdown the boiler, because the supply of gas has been cut off. The message “A01” will appear on the display;

-let the pump operate until all the air has escaped from the system;

-repeat the procedure for bleeding the radiators of air;

-draw hot water for a short while;

-check the system pressure and, if it has gone down, fill it with

water until it returns to 1 bar.

2.Check the flue system for products of combustion.

3.Check that any required local ventilation inlets are open.

4.Fill the boiler condensate trap with water.

N.B. In the event of prolonged period of system shutdown, the condensate trap should be filled before any renewed use. A shortage of water in the trap is dangerous because it could possibly lead to a leakage of fumes into the air.

5.Turn on the gas cock and check the seals on the connections, including the one for the burner, making sure that the meter does not signal the passage of gas. Check the connections with a soap solution and eliminate any leaks.

6.Press the reset button “H” for the lighting system; the spark will light the main burner. If the burner does not light the first time, repeat the procedure.

The boiler is configured in the factory for the gas type in question. It is not necessary to regulate the gas type on installation.

NOTE: the reference values of the CO2 are contained in the

TECHNICAL INFORMATION section on page 4.

3.5.DISPLAY: MESSAGES SHOWN DURING NORMAL OPERATION

LEFT RIGHT

3.6.OPERATING PARAMETERS

The boiler has been designed to allow easy intervention with regard to the operating parameters.

3.6.1.CONTROL MODES

The generation of the set-point and the request for heat are clarified in the following diagram, with regard to the heating mode.

* See section 3.6.2.

The remote control and the timer are available as an accessory Kit: in the preceding diagram, it is clear that in the event that a device of this type is not installed, the calculation of the set-point depends on an outdoor sensor (if installed) and is carried out by the P.C.B.

NOT E : a configuration is also possible which allows for the simultaneous presence of a remote control and an outdoor sensor. In this case, the flow temperature is calculated as a function of the external temperature and the room temperature. In this manner, it is possible to carry out a particularly efficient modulation, which allows considerable comfort to be obtained, combined with savings in fuel.

The influence of the roomstat and the timer are shown in the following diagram, taking into consideration the fact that:

-ON/OFF Room thermostat installed: contact open or closed, controlled by the room thermostat temperature sensor.

-ON/OFF Room thermostat not installed: contact closed (jumper).

-Timer installed: contact open or closed, controlled by the timer settings entered by the user.

-Timer not installed: contact open.

Schematic representation of the influence exerted by the roomstat and by the timer on the request for heat and on the calculation of the set-point (flow temperature of the primary circuit) by means of the external temperature values:

During operation of the boiler, while it is carrying out its normal operations, the left-hand display shows a series of characters that refer to the operations indicated below:

-Diagnostics phase (precedes the other operations)

0 No request for heat

CHeating, burner off

C.Heating, burner on

c Pump overrun for heating

dDomestic hot water, burner off

d.Domestic hot water, burner on

hPump overrun for domestic hot water

bStorage cylinder, burner off (SYSTEM version)

b.Storage cylinder, burner on (SYSTEM version)

NOTE: the flashing dot on the left-hand display always indicates “burner off”; if the still dot indicates “burner on”.

The right-hand display (two-digit) shows:

-in HEATING mode: temperature of the heating system flow;

-in DOMESTIC HOT WATER mode: temperature of domestic hot water.

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Contents Condensing Table of Contents General InformationReference Standards InstallationOverall View Siting the Appliance Overall DimensionsRffi System GAS Connection Mffi Mffi SystemMinimum Clearances Mounting the ApplianceMffi System Water ConnectionsFlue Connections Terminal PositionAccessory Connection Room Thermostat ConnectionConnections to the P.CB Under Floor Heating ConnectionElectrical Diagram JumperWater Circuit Diagrams C4 = TimerCommissioning Initial PreparationRemoving the Casing Control Panel Initial START-UPControl Modes Display Messages Shown During Normal OperationOperating Parameters Outdoor Sensor 275 Regulations Potentiometers Settings DisplaySetting the Temperature Field Comfort KEYRegulation Menu Table Boiler Safety SystemsPump Overrun Combustion Analysis DrainingGAS Adjustments Changing the Type of GAS Operating TestsCleaning the Condensate Trap Zone Valves MaintenanceCleaning the Primary Exchanger General RemarksOperational Test Technical Information Mffi Rffi SystemServicing Instructions Type C Boilers Fault Finding Replacement of Parts To Gain General Access Servicing InstructionsRemoving the sealed chamber front cover Access toRemoving the side panels Combustion ChamberRemoving the fan Removing the combustion chamber inspection panel Removing the burnerRemoving the electrodes Removing the condensate collector Removing the condensate trap Removing the injectorPage Access to the GAS Valve Removing the gas valveRemoving the D.H.W. secondary exchanger Removing the safety valveAccess to the Water Circuit Removing the automatic air vent Removing the main circuit flow switchRemoving the D.H.W. flow switch Removing the diverter valve actuatorRemoving the pump Removing the pressure gauge Removing the expansion vesselRemoving the C.H. flow temperature probe N.T.C Removing the D.H.W. temperature probe N.T.C. Mffi onlyRemoving the C.H. return temperature probe N.T.C Removing the time clock Access to the Control SystemChecking the fuses Removing the P.C.B.s Page FLOW-CHARTS Fault FindingFault Finding Guide Model 24 Rffi System Model 24 MFFI/24RFFI System Is the FAN Heating flow temperature probe in open circuit Electrical Diagrams JumperC5 = Remote Control Bus+/Bus C1 = FANEcoGENUS 24 Mffi ecoGENUS 24 Rffi Short Spare Parts List Ariston EcoGENUS 24 Rffi System EcoGENUS 24 Rffi System Technical Service Hot Line 01494 Ecogenus 24 Mffi Serial 24MFFIPart Code Description

47-116-17 specifications

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