Werbung
Verfügbare Sprachen
Verfügbare Sprachen
HWK 332HC
7.3.5 Hydraulic distribution system
The dual differential pressureless manifold functions as an in-
terface between the heat pump, the heating distribution sys-
tem, the buffer tank and the domestic hot water cylinder. A
compact system is used to simplify the installation process, so
that a lot of different components do not have to be installed in-
dividually. Further information can be found in the relevant in-
stallation instructions.
Dual differential pressureless manifold
The return sensor is installed in the immersion sleeve of the
dual differential pressureless manifold. The sensor is flowed
through in every operating situation (generation and consumer
circuit).
7.4 Electrical connection
The power supply and control voltage are supplied using stand-
ard cables (load: 3~ 5-core / 1~ 3-core; control 3-core).
For detailed instructions on how to connect the external com-
ponents and how the heat pump manager functions, please
refer to the device electrical documentation.
An all-pole disconnecting device with a contact gap of at least
3 mm (e.g. utility blocking contactor or power contactor) and an
all-pole circuit breaker with common tripping for all external
conductors must be installed in the power supply for the hydro
tower (tripping current in compliance with the device informa-
tion).
The (L/N/PE~230 V, 50 Hz) supply cable for the heat pump
manager must have a constant voltage. For this reason, it
should be tapped upstream from the utility blocking contactor
or be connected to the household current, as important protec-
tion functions could otherwise be lost during a utility block.
The correct control voltage must be ensured according to the
general information leaflet.
On delivery, the second heat generator is connected with a 6
kW heat output. To reduce the output to 4 kW or 2 kW, one or
both of the two copper link cables must be removed from ter-
minal X1 (see circuit diagram).
For detailed information, see circuit diagrams in the appendix.
The pipe heater (2nd heat generator) must only be connected
by authorised electricians according to the corresponding cir-
cuit diagram. Regulations of the utility company and national
guidelines must be observed (VDE).
If an optional immersion heater (E10.12) is used (with 1½" ex-
ternal thread in the buffer tank), a contactor K20.2 must be
used which is suited to the relevant switching capacity. The
contactor is installed in the electrical distribution system. The
mains cables for the radiators should be dimensioned and pro-
tected according to DIN VDE 0100. The immersion heater used
must be equipped with an integrated safety temperature lim-
iter.
A cable duct is integrated into the polyurethane foam at the top
of the cylinder (under the upper covering cap) which makes it
possible to lay the electrical cables under the upper cover (from
the rear of the cylinder to the front/connection side).
NOTE
i i i i
To use the HWK 332HC, two connecting cables (< 25 V /
230 V) must be routed between the heat pump managr and
the heat pump.
www.dimplex.de
NOTE
i i i i
Further information on the wiring of the heat pump manager
is available in the electrical documentation.
CAUTION!
The communication cable is necessary for the function of air-
to-water heat pumps in outdoor installation. It must be
shielded and laid separately from the mains cables. It is
connected to N1-J25. For further information, see electrical
documentation
8
8.1 General
To ensure that start-up is performed correctly, it should only be
carried out by an after-sales service technician authorised by
the manufacturer. This may be a condition for extending the
guarantee.
8.2 Preparation
The following items need to be checked prior to start-up:
All of the hydro tower connections must be installed as de-
scribed in Cap. 7 on page 5.
All valves that could impair the proper flow of the heating
water in the heating circuit must be open.
The settings of the heat pump manager must be adapted
to the heating system in accordance with the latter's op-
erating instructions.
8.3 Procedure
The hydro tower is started up via the heat pump manager. Set-
tings should be made in compliance with the instructions.
The operating overpressures indicated on the type plate must
not be exceeded.
Any faults which occur during operation are also displayed on
the heat pump manager. They can be rectified as described in
the operating instructions.
452162.66.25-EN · FD 0402
Start-up
English
EN-7
Werbung
