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VARMAX TWIN - Installation, Use and Maintenance
In accordance with the diagram, it is imperative to t the boiler and its
installation with the following components:
powered isolating valve (with an end of run contact*) on the ow tapping
on each generator's main exchanger,
balancing / isolating valve on each generator's return tapping,
• anti-return ap,
lters,
• mud cup,
• expansion vessel,
effective drain mechanism,
safety valve set at 6 bars, on each generator, sized according to each
generator's heat output (see location gure 1 page 8).
disconnector on the boiler's lling circuit in relation to the supply network.
(*) The end of run contact only allows the generator to start up when full
opening is reached.
The VARMAX TWIN are delivered either in 2/3 tapping connection
version or in 4 tapping connection version. A 2/3 tapping version cannot
be converted into a 4 tapping version and vice versa.
4.16.1. Hydraulic connection using 2 tappings
gure 9 - Hydraulic connection using 2 tappings
B3000
B3000
QAZ36
(fournie)
OCI345
(fourni)
OCI345
(fourni)
câble «bus LPB»
(fourni)
Main exchanger
output
(hot return ange blocked)
Cold return
LPB bus cable
(supplied)
QAZ36
(supplied)
OCI345
(supplied)
OCI345
(supplied)
20


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