3.1
COMBUSTION CHAMBER
DIMENSIONS
The combustion chamber is a direct
passage type and is conform to the pr
EN 303-3 standard annex E.
The dimensions are shown in fig. 8.
An adequat e pr o t ection panel is
mounted on the inside wall of the rear
head of all the models.
3.2
HEATING PUMP
CHARACTERISTICS
The characteristics of the pump sys-
tem installed on the thermal gas-oil
group are shown in fig. 9.
50
4.1
TIMER PROGRAMMER
(optional)
The control panel allows the use of a
timer supplied in kit f or m upon
reques t, complet e with mounting
instructions (fig. 10).
Make t he electr ic connection as
shown in point 2.6 eliminating the boil-
er junction-box.
4.2
TANK MAINTENANCE
The preparation of hot treated water
in the
“AQUA”
version is guaranteed
by a heater in porcelain glass, com-
plete with magnesium anode for pro-
tecting the heater and inspection
flange for control and cleaning.
The magnesium anode should be
periodically controlled and substitut-
ed whenever worn out.
4.3
REPLACING THE SWITCH
VALVE ACTUATOR
To remove the switch valve actuator,
follow these instructions (fig. 11):
– Switch off the power supply.
– Disconnect the Molex connector.
– Push the button (1) while simultane-
ously turning the actuator anticlock-
wise to remove it from the valve body.
– To reassemble the actuator, perform
the same procedure in reverse.
3
CHARACTERISTICS
4
USE AND MAINTENANCE
Fig. 8
Fig. 9
L
Volume
mm
m
3
SOLO 20
277
0,013109
SOLO 30
377
0,019028
DUETTO 30
377
0,019028
AQUA 30
377
0,019028
SOLO 40
477
0,024947
AQUA 40
477
0,024947
Fig. 10
1
2
A
AB
B
Fig. 11
REMOVE
