Technical documentation Technical documentation
STEM@ ed 06/01
EOLO MAIOR @
EOLO Maior @
Instantaneous wall-hung boilers
with sealed combustion chamber
fan assisted
EOLO 21 Maior @
EOLO 24 Maior @
EOLO 27 Maior @
- GENERAL FEATURES
The EOLO Maior @ series comprises sealed-chamber boilers with forced draught (fan assisted) for
central heating and the production of domestic hot water.
The range includes electronic-ignition versions with working outputs of 21,000 kcal/h (24.4 kW), 24,000
kcal/h (27.9 kW) and 27,000 kcal/h (31.4 kW).
Adjustment and control of the boiler are entrusted to a microprocessor-controlled electronic board
thanks to which the appliance can be connected to the Remote Friend Control (optional).
The hydraulic circuit features a copper water-gas exchanger, an automatic system by-pass and a new
brass monobloc to which is fitted the hydraulic 3-way valve which ensures, according to need,
circulation of boiler water in the heating system or in a stainless-steel plated exchanger for the
instantaneous production of d.h.w.
Combustion air flow into the sealed chamber and flue extraction are ensured by a fan, the correct
operation of which is controlled by a differential pressure switch.
All the models feature as standard an antifreeze safety device that protects down to temperatures
as low as -5°C.
- MAIN DIMENSIONS AND CONNECTIONS
DIMENSIONS (mm)
HEIGHT WIDTH
DEPTH
EOLO 21/24/27
850 450 350
CONNECTIONS
GAS
D.H.W.
SYSTEM
G U E R M
EOLO 21/24/27
1/2 “ 1/2 “ 1/2 “ 3/4 “ 3/4 “
V - power connection
G - gas supply
U – domestic hot water outlet
E – domestic hot water inlet
R - system return
M - system flow
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