17
AGUADENS
COSMOGAS
Figure 5.6 - Water and gas connections
5 - INSTALLATION
E
A
F
B
C
D
G
020003.01.004
Figure 5.8 - Siphon funnel (on request)
F
G
020002.01.028
min10 mm
max 30 mm
5.9 - Hydraulic and gas connections
The appliance is supplied as per standard with the fittings
illustrated in figure 5.6, where:
A = Ø 18 recirculation
B = domestic hot water Ø 18
C = 3/4” gas isolation valve (EN 331 type-approved)
D = 1/2“ domestic cold water isolation valve
E = gas Ø 18
F = domestic cold water Ø 18
Once the hydraulic and gas connections have been made,
proceed with assembly of the lower cover “G” as indicated
in figure 5.6.
5.10 - Water softener (on request)
If the appliance is installed in a geographical area where
domestic water has hardness exceeding 25°F (250 mg/l), a
polyphosphates softener must be installed on the cold water
supply (see figure 5.7 detail “B”), in order to safeguard the
appliance from any lime scale deposits.
Proceed as follows for installation (refer to figure 5.7):
1.- connect the softener “B” to the isolation valve “A”;
2.- mount the isolation valve “A” to the appliance fitting;
3.- proceed with the installation of the cold water inlet pipe
into the fitting behind the softener “B”;
4.- before re-mounting the lower cover, it is necessary
to cut out the plastic section between “C” and “D” to
accomodate the softener “B”.
ATTENTION !!! Please note that if the water
hardness levels are likely to be extremely high, it would
be essential to consult with a water softening specialist
who may recommend a more sophisticated system. In
this regard, we would recommend that the incoming
water supply should be tested in advance of any
decision to purchase the appliance.
Figure 5.7 - Polyphosphates softener
(on request)
B
A
C
B
A
D
020003.01.008
