Water Connection; View Of Hydraulic Connection; Excessive Pressure Device - Ferroli EXTERNO 11 User Manual

EXTERNO

24. WATER CONNECTION

The illustration shows the connection for the water and gas for the appliance.Check that the maximum
water mains pressure does not exceed 10 bars, if it does, a pressurere ducing valve must be installed.
Ensure that the minimum water supply pressure is not lower than 0,2 bar.

25. VIEW OF HYDRAULIC CONNECTION

A
F
fig. 6 - mod. 11 and 16
A Hot water outlet 1/2"
B Gas Inlet 1/2"
C Cold water inlet 1/2"
F Safety Valve Discharge
G Cold water inlet filter
The appliance is equipped with a filter located on the cold water inlet. Periodically clean the inlet filter if
dirt is present.
IMPORTANT!!
DO NOT ACTIVATE THE DEVICE WITHOUT THE FILTER.IMPORTANT!!
If the appliance is installed in a hard water area (> 200 mg/l), a softener should be installed to limit the
amount of limescale building up in the heat exchanger. The guarantee does not cover damage caused by
limescale.

26. EXCESSIVE PRESSURE DEVICE

The excessive pressure device outlet must be connected to a drainage siphon which can be checked visually in order to prevent
maintenance procedures causing harm to people, animals or property (the manufacturer shall not be held responsible for any such
damage).
C
G
B
Cod. 3541T440 - Rev. 05 - 02/2020
A
F
C
fig. 7 - mod. 22 and 26
A Hot water outlet 3/4"
B Gas Inlet 3/4"
C Cold water inlet 3/4"
F Safety Valve Discharge
G Cold water inlet filter
B
G
EN
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