54
D
Fuses and contactor for circulation
pump for swimming pool heating
(accessories)
E
Jumper
F
3-way diverter valve for "Swimming
pool" (zero volt: heating the heating
water buffer cylinder)
G
Circulation pump for swimming pool
heating (accessory)
H
Thermostat for swimming pool tem-
perature control (floating contact:
230 V~, 0.1 A, accessories)
K
Connection on controller and sensor
PCB
Power supply
Isolators for non-earthed conductors
■ The mains isolator (if installed) must
simultaneously isolate from the mains
all non-earthed conductors with a min-
imum contact separation of 3 mm.
■ We additionally recommend installing
an AC/DC-sensitive RCD (RCD class
B
) for DC (fault) currents that
can occur with energy efficient equip-
ment.
■ If
no
mains isolator is installed, all non-
earthed conductors must be isolated
from the power supply by the upstream
circuit breaker with a minimum contact
separation of 3 mm.
Danger
Incorrectly executed electrical
installations can result in injuries
from electrical current and in
appliance damage.
Connect the power supply and
implement all safety measures
(e.g. RCD circuit) in accordance
with the following regulations:
■ IEC 60364-4-41
■ VDE regulations
■ Technical connection require-
ments specified by the local
power supply utility
■ Protect the power supply to the
heat pump control unit with an
MCB/ fuse of max. 16 A.
Danger
If system components are not
earthed, serious injury from elec-
tric current can result if an elec-
trical fault occurs.
Connect the appliance and pipe-
work to the equipotential bonding
of the building in question.
Installation sequence
Electrical connections
(cont.)
5546 267 GB
