Immergas EOLO Maior kW, Руководство пользователя

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STEkW ed 12/06 EOLO Maior kW
Technical Documentation Technical Documentation
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5
1
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4
Circulator
delivery
System
return
CIRCULATOR
RETURN
SYSTEM
RETURN
D.H.W.
EXCHANGER
RETURN
M otorised 3-way diverter valve for combi mod-
els.
Whenever a request is made (for domestic hot water or central
heating) thanks to this 3-way electric diverter valve, working on
the primary circuit return, boiler water is transferred either to
the heating system or to the d.h.w. exchanger (plate type).
This depends on the position of the shutter (5) which shuts
off passage to the system and simultaneously opens the way
to the d.h.w. exchanger (domestic hot water position) or, vice
versa (central heating position).
This shutter (5) is moved in either position by powering the
motor (1).
The hydraulic part of the boiler consists of a unit made in a
composite material (2) that also includes the circulator and it is
operated by a motor (1) which causes it to move as required.
Operation.
When the central heating or domestic hot water position has
to be reached the motor (1) is switched on by the integrated
board.
Each time the motor turns of 180° it causes the shutter (5) to
move and it compresses (central heating position) or releases the
shutter’s contrast spring (4) (domestic hot water position ).
Both the spring (4) and shutter (5) are inside the 3-way car-
tridge (3).
When the position requested is reached hydraulically, one of
two limit switches (6) located inside the motor box (1) opens
and closes alternately.
When idle, the shutter (5) is positioned in d.h.w. functio-
ning.
Each time an heating request is satisfied the motor (1) turns
and releases the shutter's contrast spring (4).
On the contrary, at the end of each d.h.w. request, the shutter
(5) remains in the position reached.