Operating instructions PC-30-Vario filter control unit Page: 4
absorber temperature must not exceed
80°C at the temperature sensor.
Connecting terminals are provided for an
NR-12-TRS-2 electronic water level control
unit (part no. 3030075020) for convenient
automatic control of the water level in the
swimming pool. This also protects the filter
pump from any damage which might arise
from running the filter installation without
water.
The INFO button on the front panel can be
used to change the user language and to
retrieve various operating parameters.
Spare
terminals
are
available
for
connecting additional devices such as
chemical dosing equipment. Terminals
24+25 are floating contacts for custom use.
The relay contact between terminals 24
and 25 is closed during the filter operating
times and open outside the filter operating
times. This contact is rated for a maximum
voltage of 230V and a maximum current of
3A.
The connecting terminals for the winding
protection
switch
are
designed
for
connecting a thermal winding protection
switch built into the filter-pump motor
winding. If this switch opens, e.g. as a
result of the motor winding getting too hot,
the filter pump is switched off automatically
along
with
the
heater
and
dosing
equipment. Once the winding protection
switch closes after the motor winding has
cooled down, the units are automatically
switched back on. There is no need for a
manual reset. The connecting terminals for
the winding protection switch carry 230V.
Indicator lights in the front panel show
when the filterpump and heater are
running, allowing easy checking of the
status.
ECO mode can be started automatically on
closure of the swimming pool cover (limit-
switch terminals 28 + 29).
Installation
The swimming pool must be designed to
prevent consequential damage resulting
from a potential technical fault, power
failure or faulty controller.
Electrical connection
The control unit must be mounted such
that it is protected from moisture in
accordance with its degree of protection.
The power supply for the unit must be
provided via an all-pole disconnection
switch with minimum contact gap of 3mm
and via a residual-current circuit breaker
with a fault current IFN of
30mA. When
using variable-frequency drives and speed-
controlled pumps, the residual-current
circuit breakers stipulated for these devices
must be used and the relevant regulations
observed.
Always disconnect the unit from the
power supply before opening the case.
All electrical wiring and calibration and
servicing work must be performed
solely by an approved electrician. The
attached wiring diagrams and all
applicable safety regulations must be
observed.
The switching outputs of the PC-30-Vario
are not intended as a voltage supply for
variable frequency drives. Please refer to
the relevant wiring diagrams in these
operating instructions.
Low-voltage lines
Low-voltage lines must not be laid along
with three-phase or AC power cables in the
same cable conduit. In general, always
avoid routing low-voltage lines close to
three-phase or AC power cables.
Connecting the filter pump
Note that it is permitted to connect only
one pump. Connections must be made in
accordance with the following wiring
diagrams.
