Immergas VICTRIX 20 Plus - Motorised 3-Way Diverter Valve; Diverter Valve Operation

13
STVP ed 02/06 VICTRIX Plus
Motorised 3-way diverter valve.
is electric 3-way diverter valve works on the primary circuit
return and, depending on the request made (d.h.w. or central
heating), it transfers boiler water to the central heating system
or to the storage tank coil.
is depends on the position of the shutter (3) which closes
the passage to the system while opening it to the storage tank
(d.h.w. position) or vice versa (central heating position).
e motor (1) has to be powered in order to move the shutter
(3) in either position.
Operation.
When either the central heating or d.h.w. position has to be
reached, the modulating control board starts the motor (1)
running.
Motor operation, whose rpm are reduced by a gear system,
turns a disk (6) that is eccentrically fixed on the motor shaft.
Movement of this disk causes the joint (5) to shift and, with
each 180° turn, it presses (domestic hot water position) or
releases (central heating position) the shutter’s counteracting
spring (4).
When the position required is hydraulically reached, it alterna-
tively opens a limit switch micro (2) and closes the other.
In this way power can be cut to the motor, locking it in the
position reached, and can be enabled only when a different
request is made (d.h.w. or central heating signal).
1
2
3
4
6
5
COIL RETURN
PUMP RETURN
SYSTEM
RETURN
CENTRAL HEATING
SIGNAL
D.H.W. SIGNAL
COMMON
Technical Documentation
Technical Documentation