Ariston 47-116-15 installation instructions Calculating the lengths of the pipes

Page 12

 

In calculating the lengths of the pipes, the

TWIN PIPE

maximum length “L” must also take into

SYSTEMS

consideration

the

values

for

the

exhaust/air intake end terminals, as well

 

 

as 90° elbows for coaxial systems.

 

 

The C52 types must comply with the

 

following requirements:

 

 

 

1 -

The exhaust/ air intake pipes must

 

 

have the same diameter of ø

80 mm.

 

2 -

If elbows are to be inserted into the

 

 

air intake and/or exhaust system, the

 

 

calculation of the overall length must

 

 

take into consideration the values for

 

 

each elbow, see the FL U E

PI P E

 

 

ACCESSORIES MANUAL.

 

 

 

3 - The exhaust pipe must protrude by at

 

 

least 0.5 m above the top of the roof

 

 

in the event that it is located on the

 

 

opposite side to the side with the air

 

 

intake (this condition is not obligatory

 

 

when the air intake and exhaust are

 

 

located on the same side of the

 

 

building).

 

 

 

 

FIG. 2.11

FU007A

 

 

 

 

 

 

 

 

 

 

 

2.10ROOM THERMOSTAT CONNECTION

To connect a room thermostat, it is necessary to:

1. - Open the control panel as indicated in section 3.3.

2.- Remove the link “A” from the terminal block on the reverse of the control panel.

3.- Insert the thermostat cable through the cable grommet and fasten it by means of the cable-clamp provided.

4.- Then connect the thermostat wires to the terminal block.

5.- If a remote time clock is to be fitted, disconnect the integral time clock from the P.C.B.

6.- Using a volt-free switching time clock, connect the switching wires from the time clock following points 1-4 above.

7.- If using an external time clock and room thermostat, these must be connected in series as points 1-7 above.

Note: Only a two-wire type room thermostat can be used.

An anti-frost device is built-in to the appliance’s electronic regulation system.

A

Fo016A

12

Fo017A

Image 12
Contents Installation Instructions Type C Boilers Table of Contents General Information Overall View Installation Overall Dimensions Supply must be fused at 3 a Domestic Water Morley Road TonbridgeKent TN9 1RA 80 mm Restrictor Extension Piping not insulated Piping insulated SystemsRestrictor No Restrictor Extension Piping not insulated Piping insulatedCalculating the lengths of the pipes, Electrical Diagram Central Heating Return Commissioning Control Panel Initial START-UP Operational Adjustments Status ANTI-FROST Device GAS Adjustments Methane Liquid Gas ButaneG20 Gas G30 16.0Maintenance Miscellaneous BoilerProgrammer Technical Service Hot Line 01494 Technical InformationManufacturer Merloni TermoSanitari SpA Italy Servicing Instructions Type C Boilers Fault Finding Servicing Instructions Removing the front panelRemoving the sealed chamber frontal cover Removing the side panelsRemoving the combustion cover Removing the burner and jetsRemoving the electrodes Removing the main heat exchanger Removing the air pressure switch Removing the fanSetting the gas pressures Setting the minimum and the maximum power of the boilerSetting the maximum heating circuit power Setting pressure for soft ignitionRegulating the heating power for Natural gas G20 Regulating the heating power for Butane gas G30Regulating the heating power for Propane gas G31 Removing the spark generator Removing the gas valve Removing the D.H.W. secondary exchangerRemoving the safety valve Removing the main circuit flow switchRemoving the automatic air vent Removing the pump Removing the pressure gauge Removing the expansion vesselRemoving the D.H.W. temperature sensor N.T.C Removing the heating temperature sensor N.T.CRemoving the D.H.W. flow switch Removing the overheat thermostatChecking the fuses Removing the time clockRemoving the P.C.B Fault Finding Finding diagrams described in this chapterYES YES ∆ P 1.2 mbar YES Electrical Diagrams MicroGENUS 23/27 Mffi MicroGENUS 23/27 Mffi Ariston Page Manufacturer Merloni TermoSanitari SpA Italy Microgenus 27 Mffi Cod Part Code Description 998924 Panel combustion chamber front 571770 Main flow switch top cap