Installation, use and maintenance manual
DOCUMENT 6328408
57
Fig. 10 – Example of integration with a solar
panel system
5.6
Electrical hook-ups
The product is supplied already wired for the
supply network. It is powered via a cable
and plug/socket (Fig. 11 and Fig. 12).
Connect the appliance to the power supply
using an earthed Schuko plug with separate
protection.
WARNING: the electric power
supply
the
appliance
is
connected to must be protected
by a suitable circuit breaker.
The circuit breaker should be
chosen according to the type of
electrical devices used in the
whole system.
When hooking up to the power
supply and in relation to the
safety devices (circuit breaker
etc.), see IEC standard 60364-4-
41.
Fig. 11 –
Schuko
socket
Fig. 12 – Appliance
plug
5.6.1
Remote connections
The appliance can be connected to other
remote energy systems (photovoltaic and
solar thermal power).
The user interface has two digital inputs with
the following functions:
Digital
1:
solar
thermal
input.
When a dry contact is closed between
terminals
30
and
31
(cable:
brown/yellow wires) and the water
temperature as measured by NTC1 is
greater than SP8, the heat pump stops
and the water is heated via the solar
panel circuit. The heat pump starts
again when the contact is released and
the time set under C13 reached, or
immediately if the low boiler probe
temperature is below SP8
Digital
2
:
solar
panel
input.
When a dry contact is closed between
terminals 31 and 32 (cable: green/white
wires) and the heat pump reaches the
temperature set under SP5 (pre-set to
62°C),
the
nominal
hot
water
temperature is increased by 7°C. By way
Cold water inlet
Pump and solar panel system accessories
Solar manifolds
Heat pump
Recirculation pump
Spring-loaded check valve
Drain valve
Thermal solar coil
Hot water output
Val
ve
