Connecting The 'Ch Return; Connecting Ch Flow - REMEHA Avanta 24c Installation And Service Manual

2. Installation
MAINS WATER EXPANSION VESSEL:
A Mini expansion vessel
B Mains water inlet pipe
C Non-return valve
D Boiler
B C
fig. 11 Mains water expansion vessel
T000887
fig. 12 Connecting CH return
LT.AL.W7H.000.016
fig. 13

Connecting CH flow

LT.AL.W7H.000.017
14
D
A
T000887-A

IMPORTANT: Non-return, back flow prevention devices
(including those associated with water meters) fitted to the
mains water supply, can cause a pressure build up witch could
damage the boiler and other Household appliances.
Where the mains water supply has a non return, back flow
prevention valve fitted, a mini expansion vessel (A) should be
connected to the mains inlet pipe (B) between the non-return
valve (C) and the boiler (D) as shown opposite.

A non-return valve maybe required when fluctuating water
pressures causes a combi boiler to operate momentarily in
hot water mode
2.3.9

Connecting the 'CH return'

• F it the inlet pipe for CH water to the 'CH return'  22 mm
Ø connection.

The Remeha Avanta Plus has a drain cock built into the return
isolating valve
It is considered good practice to install an air separator / dirt
removal device in the return to the boiler.
2.3.10 Connecting 'CH flow'
LTALW7H000016b
• F it the outlet pipe for CH water to the 'CH flow'  22 mm
Ø connection.

The Remeha Avanta Plus has a drain cock built into the flow
isolating valve.
LTALW7H000017b
Remeha Avanta Plus
127768-271011