Pos.
Description
Cold water inlet
Hot water output
Condensate outlet
Recirculation
Coil for solar thermal
input
Sensor socket (only for
relevant models)
Fig. 7 – Plumbing connections
The figure below(Fig. 8) shows an example
of a plumbing hook-up.
Connector/hole
1"G
1"G
½"
¾"G
1"
G
1/4
½"G
Water input;
Isolation valve
Automatic thermostatic mixing device
Heat pump
Recirculation pump
Spring-loaded check valve
Hot water output
Relief valve
Drain tube inspectable end
Drain valve
DOCUMENT 6328408
Installation, use and maintenance manual
Val
ve
Expansion vessel
Fig. 8 – Example of a water system set-up
Connection
to boiler
Fig. 8a – Example of heavy-series relief valve
NOTE: an impurities filter must be
installed on the cold water inlet.
The appliance must not operate
with water with a hardness below
12°F, or vice versa with extremely
hard
water
suitably
calibrated
monitored softener should be
used in this case, but the residual
hardness should not fall below
15°F.
Cold water
input
Connection to
outlet siphon
(above
25°F).
A
and
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