18
1-28
A
B
C
D
Maior Eolo 24
Maior Eolo 28
Maior Eolo 32
A
A
B
B
C
C
D
D
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
1.21 CIRCULATION PUMP.
The boilers are supplied with a built-in circula-
tion pump with 3-position electric speed control.
The boiler does not operate correctly with the
circulation pump on first speed. To ensure opti-
mal boiler operation, in the case of new systems
(single pipe and module) it is recommended to
use the pump at maximum speed. The circulation
pump is already fitted with a capacitor.
Pump release.
If, after a prolonged period of
inactivity, the circulation pump is blocked,
unscrew the front cap and turn the motor shaft
using a screwdriver. Take great care during this
operation to avoid damage to the motor.
By-pass Regulation (part. 25 Fig. 1-29).
If nec-
essary, the by-pass can be adjusted according to
system requirements from a minimum (by-pass
excluded) to a maximum (by-pass inserted)
represented by the graph (Fig. 1-28). Make the
regulation using a flat head screwdriver, turn
clockwise and insert the by-pass, anti-clockwise
it is excluded.
Head available to the system.
H
ea
d (m H
2
O)
H
ea
d (m H
2
O)
H
ea
d (m H
2
O)
Flow rate (l/h)
Flow rate (l/h)
Flow rate (l/h)
H
ea
d (kP
a)
H
ea
d (kP
a)
H
ea
d (kP
a)
A = Head available to the system at
maximum speed with by-pass
excluded
B = Head available to the system at
maximum speed with by-pass
inserted
C = Head available to the system
at second speed with by-pass
excluded
D = Head available to the system
at second speed with by-pass
inserted
STD.002998/004
Summary of Contents for MAIOR EOLO 24
Page 1: ...MAIOR EOLO 24 28 32 Instruction and recommendation booklet 1 038763ENG STD 002998 004 ...
Page 2: ...STD 002998 004 ...
Page 31: ...31 3 5 6 6 7 8 8 f f e INSTALLER USER MAINTENANCE TECHNICIAN STD 002998 004 ...
Page 37: ...37 STD 002998 004 ...
Page 38: ...38 STD 002998 004 ...
Page 39: ...39 STD 002998 004 ...
