Connection diagram with water treatment
Connection diagram
Connections on table-top units
V
United Kingdom:
DCV
Item
Name
Explanation
A
Water connection for boiler and water injection For water quality see 'Water quality' on page 80
B
Water connection for cleaning system and re-
coil hand shower
For water quality see 'Water quality' on page 80
Z
Customer water pipe
Water quality: Drinking water
X
0.08 mm sediment filter
A 0.08 mm sediment filter must be installed if the water has a high level of
impurity.
W
Water treatment for softening the water to the
required soft water quality
Recommendation: Partial demineralization cartridge
Y
Shut-off device
Water tap
V
Suitable backflow preventer
(only required for steam injectors where there
is an NSF requirement, otherwise optional)
To satisfy the NSF specifications, the appliance must be installed with suita-
ble backflow protection.
DCV
Double check valve
The regulations for sanitary installations in Great Britain require this compo-
nent to be fitted before any installed filtration or treatment devices.
6 Installation
Installation manual
54