Expansion Vessel; Connecting Dhw Pipes - REMEHA Avanta Range 24c Installation & Service Manual

fi g. 10

Connecting DHW pipes

LT.AL.W7H.000.015
2.3.6

Expansion vessel

An 8 litre expansion vessel (with the vessel charge set to 1.0
bar) is fitted as standard within the boiler case and is suitable
for use in a heating system with a water content up to 100
litres, operating at a flow temperature of 80°C, a maximum
pressure of 3 bar and a maximum system static head of 5
metres above the boiler. If the system water content is greater
than 100 litres, or the system static head above the boiler is
greater than 5 m, an additional vessel must be installed in the
system to allow for the increase in expansion, see table 01.

Install additional vessel according BS 5449, part1.
Boiler Safety Valve Setting
(Bar)
Vessel Charge (Bar)
Heating System Water Content
(Litres)
100
125
150
175
200
250
300
For other system volumes, mul-
tiply the system volume by the
factor across:
table 01 Expansion Vessel Size
2.3.7 Connecting DHW pipes
(For combi type only)
• Fit the outlet pipe for hot water to the DHW outlet  15
mm Ø connection.
• Fit the inlet pipe for cold water to the DHW inlet  15 mm
Ø connection.

• The DHW pipes must be connected in accordance with
current regulations.
• For plastic pipes, follow the manufacturer's instructions
(for connection).
13
3.0
0.5 1 1.5
Expansion Vessel Size
(Litres)
4.8 8.0 13.3
6.0 10.0 16.6
7.2 12.0 20.0
8.4 14.0 23.3
9.6 16.0 26.6
12.0 20.0 33.3
14.4 24.0 39.9
0.048 0.080 0.133