18
STV2I ed 11/09
VICTRIX 2 I Export
Technical Documentation
Technical Documentation
1
1
Primary
circuit
flow
Primary
circuit
return
Domestic hot water flow switch (2).
With respect to a withdrawal of DHW with a flow rate of at
least 1.5 l/min and a dynamic pressure of 0.3 bar, the flow
switch (2) enables the boiler functioning in DHW mode.
This takes place by means of a magnet which, lifting when
it is hit by the flow of domestic cold water, approaches an
electric contact (
reed relay
) and causes shifting due to the
magnetic effect.
The closure of the contact, which is positioned out of the pipe
where the water passes, allows the P.C.B. to start the priority
DHW functioning mode.
It is made up from two parts (
one in brass and one in plastic
)
that are coupled and blocked by a pin.
A G1/4" thread is present on the body to which the system
filling unit is connected (3).
A 8.75 l/min flow limiter is inserted at the outlet of the flow
switch (1)
(at 2 bar)
.
DHW heat exchanger.
It is a water/water heat exchanger made up from N° 14 stainless
steel plates overlapping each other, over which boiler circuit
water and domestic cold water flows in counter-current mode
and through which the heat exchange of the two liquids takes
place.
Hydraulic coupling is obtained by the four O-ring seals (1)
that allow to push-fit it directly to the domestic hot water inlet
body and to the domestic hot water outlet body.
Domestic
hot
water
outlet
Domestic
cold
water
inlet
Domestic cold
water inlet
1
2
3
Summary of Contents for VICTRIX 26 2 I
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