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7 Water connection
Water connection hoses complying with EN
61770 are available through Rational using part
number 2067.0709.
The materials used in this connection hose meet
KTW, DVGW W270, WRAS and FDA require-
ments.
Use only new hoses as water connections. Do
not re-use old hoses.
ATTENTION!
Non-functioning device!
Ensure that the minimum water conductivity
value of 50µS/cm (Micro Siemens) is main-
tained.
UK only: WRAS approval IRN R160
To be carried out by the installer:
An approved double check valve or some other
no less effective backflow prevention device shall
be fitted at the point of connection directly to
the water tap.
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