22
Installation info
WARNING
Depending on the hardness of
the supply water, it is impor-
tant to assess the convenien-
ce of installing a domestic
device to dose water treat-
ment products which can be
used to treat the drinking wa-
ter.
It is always advisable to treat
the water if the supply water has
a hardness value of more than
28°f.
As far as concerns the positio-
ning size of the
"E"
stirrup, you
have to consider the template
in the figure 7 (size 730.5 mm -
optional kit).
2.2.14 - ARRANGEMENTS FOR A
D.H.W. TANK (for boiler types
providing only heating)
This Kit permits an only heating boiler (type
IVEN 04 RTN 24, RTFS 24 or RTFS 28.) to
produce sanitary warm water (through the use
of an external D.H.W. tank).
PRELIMINARY OPERATIONS
Act on the coupled spring (located in the lower
part) and remove the two screws (located in
the upper part) in order to remove the shell.
In order to install such a kit, you have to move
the control panel in the lower position. Then
unloose the three fixing screws
"A"
two on
the side and one on the back of the panel bo-
ard, and place the panel in correspondence to
the upper holes
"C"
and fix the panel.
If the boiler is already installed, go on with the
emptying of the boiler
-
Relate for the discharge connection of the
safety valve a plastic pipe with hose adap-
ter, whose length can
reach a drain.
-
Remove the components from 1 to 6 of fig.
25/A and assemble the components from
1 to 6 contained in the kit and shown in the
fig. 25 B; also remove the minimum pres-
sure switch from the C.H. flow group and
place it on manifold of the diverting valve.
-
Connect electrically the connector from the
panel board to the actuator of the diverting
valve. See detail
"F"
fig. 25.
-
Connect the cable of the D.H.W. sensor
from the panel board (colour BLUE -
BROWN, see detail
"G"
) to the cable of
the D.H.W.sensor kept in the kit (which has
to be placed in the sheath of the external
D.H.W. tank) through two terminals provi-
ded with the kit.
fig. 24
E
fig. 25
1
2
3
4
6
2
5
1
3
4
6
A
B
F
G
E
INSTALLATION WITH PRE-PIPING KIT
(OPTIONAL 00360808)
ARRANGEMENTS FOR A CONNECTION TO AN EXTERNAL D.H.W. TANK
COMPONENTS TO BE REMOVED
1 -
SAFETY VALVE
2 -
NIPPLE
3 -
FLOW PIPE
4 -
CLOSING CAP
6 -
MINIMUM PRESSURE SWITCH
COMPONENTS TO BE ADDED
1 -
ELECTRIC DIVERTING VALVE
2 -
ACTUATOR
3 -
FLOW PIPE TO D.H.W. TANK
4 -
RETURN PIPE FROM D.H.W. TANK
5 -
FLOW PIPE TO DIVERTING VALVE
6 -
MINIMUM PRESSURE WITCH
Summary of Contents for RTN 24
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