77
cod. 3541T630 - Rev. 03 - 05/2020
EN
DORA
200 HT - 260 HT
5.4 Securing and connections of DORA
The product must be installed on a stable, flat floor that is not
subject to vibrations.
5.5 Plumbing connections
Connect the cold water supply line and the outlet line to the ap-
propriate connection points (fig. 15).
The table below gives the characteristics of the connection
points.
Ref. Model
200 / 260
UM
1
Cold water inlet
1”G
“
4
Recirculation
3/4”G
“
5
Hot water outlet
1”G
“
6
Condensate drain
1/2”G
“
fig. 15
The following figure (fig. 16) illustrates an example of plumbing
connection.
fig. 16 - Example of water system
Legend (fig. 16)
1
Cold water inlet
4
Recirculation
5
Hot water outlet
11
Shut-off valve
12
One-way valve
13
Safety valve
14
Expansion vessel
15
Drain cock
16
Recirculating pump
17
Check valve
18
Automatic thermostatic mixing device
NOTE: To ensure the system works correctly, it is essen-
tial to fit the cold water intake with a 7 Bar pressure relief
valve (lightweight, included in the supply), as well as fit
anti-electrolysis sockets (not included in the supply) to
the system’s water intake and outtake
NB!: The overpressure device must be operated regu-
larly to remove scale deposits and to check that it is not
blocked.
NB!: For correct installation of the unit, a hydraulic safety
unit in conformity with UNI EN 1487: 2002 must be provid-
ed at the feed inlet and include at least: a shut-off valve; a
