Immergas EOLO Star Export Manual page 6

Technical documentation
- CIRCULATOR
This operates on the primary circuit return and is located
on the brass header assembly.
It is connected to the enbloc and exchanger by means of
threaded connecting pieces.
The body features a threaded connecting piece to which
is fastened the automatic outlet valve (1).
- PUMP HEAD FLOW GRAPH
The curve that represents the relation between
the flow rate and the available head depends on
the pump operating speed.
The curves shown on the graph alongside refer
to:
- A = Circulator at top speed
- B = Circulator at second speed
- BITHERMAL EXCHANGER
This is a water-gas blade exchanger of the
bithermal type with pipes and fins in
copper for the production of hot water for
central heating and home use.
It consequently works directly in both
circuits to which it is connected by pipes
with threaded connecting pieces (3) with flat
gasket seals (4).
The 6 oval pipes that make it up, inside
which flows the water of the central heating
circuit, contain an equal number of "cross"
pipes involved in direct transit of hot water
for home use (see illustration alongside).
These ducts are hydraulically connected in
parallel in groups of three on the central
heating circuit and in series in the hot water
for home use circuit.
At the exchanger
overheating safety thermostat (2) secured on
the side by means of a fork (1).
On the central heating supply pipe is a
housing where (screwed on) the relevant
NTC probe (5) is located.
STES ed 07/01
exit is a 100°C
EXCHANGER PIPE SECTION
4
Technical documentation
EOLO STAR