Technical documentation
Technical documentation
STEM@ ed 06/01
6
EOLO MAIOR @
- HEAD FLOW GRAPH
The curve that represents the relation between the flow
rate and the available head depends on the pump
operating speed and on whether the system bypass is
engaged or not (
optional on "S" versions
)
The curves shown on the graph alongside refer to:
- A = Circulator at top speed with bypass disengaged
- B = Circulator at top speed with bypass engaged
- C = Circulator at second speed with bypass disengaged
- D = Circulator at second speed with bypass engaged
EOLO 21 Maior @
EOLO 21 Maior S @
EOLO 24 Maior @
EOLO 24 Maior S @
EOLO 27 Maior @
- PRIMARY EXCHANGER
This is a water-gas blade exchanger with pipes and fins in
copper at the outlet (
delivery
) of which are positioned the
NTC heating sensor (6) and the overheating safety
thermostat (2).
The size and layout of the pipes differ according to boiler
output.
In the 21 and 24 versions the four pipes making it up are
connected in series (1) while on the EOLO 27 they are
connected in parallel (7) two by two to reduce flow
resistance to the utmost and provide the greater head
required by boiler output.
It is connected to pump delivery and to primary circuit
delivery by means of coupling pipes (3) with OR seal (5)
fastened with special forks (4).