Connecting The Gas Supply; Flue Terminal And Air Supply Connections; Flue Terminal Positions - REMEHA Avanta 12v Installation & Service Manual

fig. 11 Connecting gas supply
2.4.3
• Before starting any work on the gas supply, turn off the main
isolation valve.
• Remove the dust cap from the gas connection  at the
bottom of the boiler.
• Connect the gas supply to the 22 mm Ø connection (copper
tail supplied).

• Make sure there is no dirt in the gas pipe.
• Make sure that there is sufficient gas pressure available
(at full load > 17 mbar).
• Preferably install a gas filter in the gas pipe to protect the
boiler.
• The gas supply must be connected, tested for soundness
and purged by a qualified Engineer and in accordance with
BS6891.
2.5

Flue terminal and air supply connections

The Remeha Avanta is only suitable for room sealed operation
with a standard concentric connection 60/100 mm Ø or the
59970.LT.GB.W7H.035
optional 80/125 mm Ø connection.
Detailed recommendations for air supply and flue terminals are
given in BS 5440.

It should not be necessary to provide compartment ventilation
when the boiler is used with a standard concentric flue.
2.5.1
The flue terminal must be located with care to ensure that the
products of combustion are dispersed properly in all weather
conditions and cause minimum nuisance to the building user
or any adjacent buildings. If the terminal is positioned less
than 2 m above the ground, balcony, or flat roof where access
by persons is possible a suitable guard must be employed.

The boiler will produce a water vapour plume during normal
operation Positions for the Remeha Avanta are shown in the
figure and table 01. The principle of the 1:1 gas valve ensures
the Avanta range is able to deliver it's full output at inlet pres-
sure down to 17 mbar. However if dynamic pressure below 19
mbar are experienced ensure this is adequate for ALL other
gas appliances in the property.
14
Remeha Avanta

Connecting the gas supply

Flue terminal positions