DORA TECH
90 LT - 120 LT
61
cod. 3540000800 - Rev. 02 - 09/2023
EN
ATTENZIONE
Any repair, maintenance, hydrau-
lic and electrical connection must
be carried out by qualified tech-
nicians, exclusively with the use
of original spare parts. Failure to
comply with the above instruc-
tions may compromise the safety
of the equipment and relieves the
manufacturer of any responsibili-
ty for the consequences.
ATTENTION
For the correct operation of the
device, the inlet water pressure
must be:
- maximum 0.7 MPa (7 bar);
- minimum 0.15 MPa (1.5 bar).
ATTENTION
• Water may drip from the safe-
ty valve discharge pipe; leave
this pipe open to the atmos-
phere.
• The safety valve must be op-
erated regularly to remove
limescale deposits and to
check that it is not blocked.
• Connect a rubber pipe to the
condensate drain, taking care
not to force too much so as
not to break the drain pipe
and refer to par. “6.7.1 Con-
ATTENZIONE
For correct operation of the
appliance, it is essential to in-
stall a 0.7 MPa (7 bar, light
series supplied) safety val-
ve on the cold water inlet.
This safety device must not be
tampered with and must be ope-
rated frequently to check that
it is not blocked and to remove
any limescale deposits. Water
may drip from the pressure relief
outlet pipe and the pipe should
be left open to atmosphere. The
discharge pipe connected to the
pressure relief device must be in-
stalled in a constantly downward
direction and in an environment
free from the formation of ice.
The use of a pressure reducer
(not supplied) is required if the in-
coming water pressure is greater
than 0.7 MPa (7 bar), and this must
be connected to the water mains.
The discharge pipe of the sa-
fety valve must be installed
downwards and in an envi-
ronment not subject to freezing.
ATTENTION
For correct operation of the
equipment it is essential to in-
stall a 0.7 MPa safety valve on
the cold water inlet (7 bar, light
series supplied).
The safety valve discharge pipe
must be installed downwards and
in a place not subject to freezing.
ATTENTION
Use only connecting pipes (not
supplied), rigid and resistant to
electrolysis both at the inlet of
cold water and at the outlet of hot
water from the device.
