Immergas EOLO Mini Technical Documentation Manual page 9

Technical documentation Technical documentation
- 3-WAY HYDRAULIC VALVE
Whenever a domestic hot water request is made, the 3-way valve has to deviate the flow of water
of the primary circuit from the central heating system to the plate exchanger.
It is therefore connected to both the primary circuit (primary circuit delivery, system delivery
and d.h.w. exchanger delivery) and to the d.h.w. circuit (cold water inlet, plate exchanger cold
water inlet).
The component part consists of a brass structure with inside an area where the transit (supply) of
d.h.w. is detected and another area where, as a result, deviation is made to the boiler circuit.
Inside are devices that carry out this function and which, if necessary, can be replaced using the
revision kit for three-way valves in which are fitted all the component parts subject to wear
(diaphragm, rods, OR, shutter, etc).
To perform this operation, the lid (6) will have to be removed and the two parts separated that
make up the valve body after loosening the socket-head retention screws (9).
The 3-way valve assembly also features the housings for the system filling stopcock (13) and
the 8 l/min flow limiting device (8).
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STEME ed 07/03 EOLO MINI