Ariston 47-116-17 installation instructions Flue Connections, Terminal Position

expansion and add an additional sealed expansion vessel with adequate capacity.

MAINS WATER FEED - CENTRAL HEATING:

There must be no direct connection to the mains water supply even through a non-return valve, without the approval of the Local Water Authority.

FILLING:

A temporary method for initially filling the system and replacing lost water during servicing and initial filling (in accordance with Water Supply Byelaw 14), is provided as an integral part of the connection kit (see FIG. 2.5). The flexible hose must be removed once the system has been filled. The D.H.W. inlet valve on the connection kit has two positions, one for winter and one for the summer. This enables the flow-rate through the appliance to be adjusted so that a sensible D.H.W. temperature may be achieved throughout the year.

DOMESTIC WATER

The domestic water must be in accordance with the relevant recommendation of BS 5546:1990. Copper tubing to BS EN 1057:1996 is recommended for water carrying pipe work and must be used for pipe work carrying drinking water.

RESIDUAL HEAD OF THE BOILER

The minimum acceptable spacing from the terminal to obstructions and ventilation openings are specified in Fig. 2.6

FIG. 2.6

TERMINAL POSITION		mm
A -	Directly below an open window or other opening	300
B -	Below gutters, solid pipes or drain pipes	75
C -	Below eaves	200
D -	Below balconies or car-port roof	200
E -	From vertical drain pipes and soil pipes	75
F -	From internal or external corners	300
G -	Above ground or below balcony level	300
H -	From a surface facing a terminal	600
I -	From a terminal facing a terminal	1200
J -	From an opening in the car port
	(e.g. door, window) into dwelling	1200
K -	Vertically from a terminal in the same wall	1500
L -	Horizontally from a terminal in the same wall	300

2.9.FLUE CONNECTIONS

FLUE SYSTEM

The provision for satisfactory flue termination must be made as described in BS 5440-1.

The appliance must be installed so that the flue terminal is exposed to outdoor air.

The terminal must not discharge into another room or space such as an outhouse or lean-to.

It is important that the position of the terminal allows a free passage of air across it at all times.

The terminal should be located with due regard for the damage or discolouration that might occur on buildings in the vicinity.

In cold or humid weather water vapour may condense on leaving the flue terminal.

The effect of such “steaming” must be considered.

If the terminal is less than 2 metres above a balcony, above ground or above a flat roof to which people have access, then a suitable terminal guard must be fitted. When ordering a terminal guard, quote the appliance model number.

A suitable terminal guard is available from:

TOWER FLUE COMPONENTS

Morley Road

Tonbridge

Kent TN9 1RA

In FIG. 2.11 below, several different types of flue systems are shown. For additional information regarding the flue accessories, please consult the Flue Pipe Accessories manual.

	Exhaust Type	Maximum Extension	Diameter
		Exhaust/Air	of Pipes
		(m)	(mm)
	C13	4	Ø 60/100
Coaxial
Systems
	B33 outlet of fumes in	4	Ø 60/100
	chimney or exhaust flue
	C13, C33, C43	31 (S1=S2)	Ø 80/80
Twin Pipe	C53, C83	55 (S1+S2)	Ø 80/80
Systems
	B23	54 (S2)	Ø 80

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