Ariston E-COMBI 24 30 38 manual Safety Valve Discharge and Condense Outlet Gas connection

	installation
Safety Valve Discharge and Condense Outlet	Gas connection
The pressure relief valve pipe is made of copper. It should terminate	Make sure, using the labels on the packaging and the data plate on
below the boiler safely outside the premises. Care should be taken	the appliance itself, that the boiler is in the correct country and that
that it does not terminate over an entrance or window or where a	the gas category for which the boiler was designed corresponds to
discharge of heated water could endanger occupants or passers by.	one of the categories available in the country where it will be used.
Warning !	The gas supply piping must be created and measured out in
	compliance with specific legal requirements and in accordance with
Do not apply heat to the copper safety valve outlet pipe whilst it	the maximum power of the boiler; you should also make sure that the
is connected to the 3 bar safety relief valve.	shut-off valve is the right size and that it is connected correctly.
	Check that the supplied gas corresponds to the type of gas for which
Fill the central heating and DHW system and bleed air from the system	the boiler was designed (see the data plate located on the appliance
as described in the Commissioning instructions (page 30).	itself).
The system should be carefully checked for leaks, as frequent refilling	It is also important to check that the pressure of the gas (methane
could cause premature system corrosion or unnecessary scaling of	or LPG) you will be using to feed the boiler is suitable, because if it
the heat exchanger. The pipe from the trap should be connected to a	is insufficient the power may be reduced, causing inconvenience for
drain as described in the relevant regulations.	the user.
Pay special attention not to bend the condensate drain pipe in such
a way as to interrupt the flow. Please only use drain pipe material	Water connection
compatible with condensate products (refer to BS 6798:2009).	The illustration below shows the connections for the water and gas
The condensate flow can reach 2 litres/hour because of the acidity of	attachments of the boiler. See valves configuration on page 14.
the condensate products (Ph close to 2), take care before operation.	Check that the maximum water mains pressure does not exceed 6 bar;
See page 13 for condensate discharge options.	if it does, a pressure reducing valve must be installed.
	For the measuring of the pipes and of the heating bodies in the
	heating system, the residual head value should be calculated as a
	function of the requested flow rate, in accordance with the values
	shown in the circulation pump graph (page 16).

A
A	E-COMBI
- remove the 2 screws A from the			(
			'
transport bar	&
- dispose of the transport bar and
	)
reassemble the fixing screws.	%		+
	$
	,
	A. Central heating Flow
	B. Domestic Hot Water Outlet
	C. Gas Inlet
	D. Domestic Cold Water Inlet
	E. Central Heating Return
	F.	Safety Valve Discharge
	H. Drain Valve
	I.	Drain condensate
	E-SYSTEM		(
	&		*
	)
	$		+
	,
	* - Connection for Filling Loop
			15