Rotex RKHH2E200AAV33, Руководство по установке

Страница: 20 / 42

Installation Manual
20
RKHH2E-(P)AAV33
ROTEX Domestic Hot Water Heat Pump
2018.8
The illustration in Fig. 8 is an example of a water supply
connection.
Fig. 8
– Example of the water supply system
Fig. 8a
– Example of heavy series safety valve
N.B.
It is compulsory to install a dirt filter on the
cold water inlet pipe. The equipment does
not work with water hardness lower than
12°F; The same goes for particularly high
water hardness (higher than 25°F). It is,
in those cases, recommended to use a
water softener, properly calibrated and
monitored. The residual hardness should
not fall below 15°F.
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 operated regularly
in order to remove limescale deposits and
to check that it is not blocked (Fig. 8a)
N.B.
To ensure proper installation of the
equipment, a hydraulic safety group in
accordance to UNI EN 1487:2002
standard should be provided. It should (at
least) include: a shut-off valve, a check
valve, a control device of the check valve,
a safety valve and a device to interrupt
the water load (Fig. 8a)
N.B.
The drain pipe connected to the equipment for
protection against overpressure must be
installed sloping continuously downwards
and in an area where it is protected
against the formation of ice (Fig. 8a)
WARNING!
In case an expansion vessel is not being
installed, make sure that there’s no non-
return valve installed in the cold water
intake.
WARNING!
The heat pump for the production of domestic
hot water is capable of heating water to
more than 60°C. It is therefore necessary,
as a protection against burns, to install an
automatic thermostat mixing equipment
on the hot water pipe (Fig. 8).
6.4.1 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 comes out
on the side of the equipment.
This must be connected to a duct via a siphon to allow
the condensate to flow freely (Fig. 9a or Fig. 9b).



alv
ola








Water inlet pipe;

Shut-off valve;

Automatic thermostat mixing equipment

Heat pump

Ricirculation pump

Spring check valve

Hot water outlet pipe

Safety valve

Inspectionable end of discharge pipe

Drain tap
Expansion vessel
Cold water inlet
Boiler connection
Drain tap connection