COSMOGAS AGUADENS Series, Installation, Operating And Maintenance Manual

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AGUADENS
COSMOGAS
5 - INSTALLATION
5.9 - Hydraulic and gas connections
The appliance models AGUADENS 16 and 22 is supplied
as per standard with the fittings illustrated in figure 5-7,
where:
A = Ø 18 recirculation
B = domestic hot water Ø 22
C = 3/4” gas isolation valve (EN 331 type-approved)
D = 3/4” 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 5-7.
The appliance models AGUADENS 37 is supplied as per
standard with the fittings illustrated in figure 5-8, where:
M = domestic hot water Ø 22
N = domestic cold water Ø 22
5.10 - Water softener (on request)
If the appliance is installed in a geographical area where
domestic water has hardness exceeding 20°F (200 mg/l), a
polyphosphates softener must be installed on the cold water
supply, in order to safeguard the appliance from any lime
scale deposits.
Figure 5-7 - Water and gas connections
AGUADENS 16 and 22
E
F
B
C D
G
E
F
B
C D
G
020003.01.056
Figure 5-9 - F = condensing drain pipe
G = siphon funnel (on request)
F
G
020002.01.028
min10 mm
max 30 mm
Figure 5-8 - Water and gas connections
AGUADENS 37
M
N
M
N
020008.01.018
Figure 5-10 - Typical piping
Legenda di figura 5-10:
2 = Gas manual valve (EN 331 type-approved) (Field
supplied)
3 = Water isolation valve / Flow rate selector (Field
supplied)
4 = Water drain valve (Field supplied)
5 = Condensate drain (Field supplied)
6 = Gas inlet
7 = Cold water supply
8 = Domestic hot water
9 = Condensate drain pipe
10 = Water isolation valve (Field supplied)
11 = Filter (Field supplied)