TESY EVHP 9S 260 60 Instructions For Use Manual page 38

The following illustration (Fig. 7) shows an example of a
water supply connection.
N.B.: It is compulsory to install a
dirt filter on the cold water inlet pipe. The
trary, when
particularly high (higher than 25°F), it is
recommended to use a water softener,
properly calibrated and monitored; in this
case the residual hardness should not fall
below 15°F.
the water hardness
PLEASE NOTE!: It is advisable for the system
installer to install a 7-bar safety valve on the
cold water intake pipe (Fig. 8a).
N.B.: The safety equipment for protection
against over pressure must be op- erated
regularly in order to remove limescale
deposits and to check that it is not blocked
(Fig. 8a)
N.B.: For a
equipment, a hydraulic safety group
accordance to UNI EN 1487:2002 standard
should be provided. It should include at
least: a shut-off valve, a check valve, a
control device of the check valve, a safety
valve, a device to interrupt the water load
(Fig. 8a)
N.B.: The drain pipe connected to the
equipment
pressure
continuously downwards and in a place
where it is protected against the formation of
ice (Fig. 8a)
WARNING!: in case an expansion vessel is
not being installed, make sure that in the
cold water intake there is not any non-return
valve installed.
WARNING!: The heat pump for the pro
duction of domestic hot water is capable of
heating water up to more than 60°C. For this
reason, as a protection against burns, it is
necessary to install an automatic thermostat
mixing equipment to the hot waterpipe (Fig.
5.4.1 Condense drain connections
Condensate that forms during the operation of the heat
pump flows through an appropriate discharge pipe (G 1/2")
that passes inside cladding and it comes out on the side of
the equipment. This must be connected to a duct via a
siphon so that the condensate can flow freely (Fig. 8 or Fig.
9).
is
proper installation
for protection against
must be installed
of the
in
over
sloping