Viessmann VITOCAL 300-A, Инструкции по установке и обслуживанию для подрядчиков

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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, type B
, for DC (fault) currents that can
occur with energy efficient equipment.
■ RCDs of type A must not be used or
installed upstream of the RCD type B.
■ If no mains isolator is installed, all non-
earthed conductors must be isolated
from the mains by the upstream circuit
breakers with a minimum contact sep-
aration 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
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.
Danger
Incorrect core allocation can
result in serious injury and dam-
age to the appliance.
Never interchange cores "L" and
"N".
Installation sequence
Electrical connections, heat pump control unit
(cont.)
5516 436 GB
Installation