Immergas NIKE Mini 24 Export Manual page 15

Technical Documentation
Motorised 3-way diverter valve for combi mod-
els.
It is an electric motor (1) connected to the 3-way unit (2) and
locked by a fork that allows, according to the request made
(d.h.w. or central heating), boiler water to flow into the central
heating system or in the d.h.w. plate exchanger.
This depends on the position of the shutter (4) which closes
passage to the system while simultaneously opening it to the
d.h.w. exchanger (d.h.w. position) or vice versa (central heating
position).
The motor (1) is made to work by the electronic board and,
with each 180° rotation, the shutter (4) moves into both
positions.
The hydraulic part consists of a brass unit (2).
Operation in the central heating mode.
The shutter's (4) counteracting spring (3) is not compressed
(central heating position), keeping passage to the d.h.w. plate
exchanger closed and passage to the system delivery open.
Both the spring (3) and shutter (4) are located inside the 3-
way brass body (2).
Operation in the d.h.w. mode.
The standard position of the hydraulic unit is always in the
d.h.w. mode.
The electric motor (1) pushes the rod (5) to which the shutter
(4) is connected which closes passage to the system, simultane-
ously opening it to the d.h.w. plate exchanger, the shutter's (4)
contrasting spring (3) is compressed (d.h.w. position).
Both the spring (3) and shutter (4) are located inside the 3-way
valve brass body (2).
STNM ed 07/07
Exchanger
return
1
EXCHANGER
DELIVERY
SYSTEM
DELIVERY
13
Technical Documentation
Exchanger
delivery
2
System
delivery
4
5
D.H.W.
EXCHANGER
DELIVERY
NIKE Mini Export
D.h.w.
exchanger
delivery
3