Operating instructions for Pool control-40.net filter control unit
Page: 5 (34)
Function
The
PC-40.net control unit lets you time the on/off cycles of a filter pump based on a user-programmable
daily or weekly schedule. A 400V 3-phase pump, a 230V single-phase AC pump or a variable-speed filter
pump may be used as the filter pump (see wiring diagrams). When using a 3-phase filter pump, a 3-phase
electronic motor protection device protects the pump from overload (current range has continuous adjustment
up to 8A).
Backwashing can be performed using a 6-way multiport valve and installed EUROTRONIK-10 controller or
using slide valves under manual, timed or pressure-dependent control.
The built-in level control is designed for use with overflow pools with spillway (balancing tank) and for skimmer
pools.
While the filter pump is running, the swimming pool heating is controlled by the electronic temperature
controller. During pauses in filtration, the heating is automatically switched off by the internal interlock. The
required water temperature for the swimming pool can be set on the front panel. The heating can also be
switched off from here. A live contact (terminal U2) and volt-free floating contacts (terminals 17&18) are
available for connecting the heating system. Terminals are provided for connecting an
solar actuator
when operating solar absorbers that carry a direct flow of water from the pool. This control unit is not intended
for use with other types of solar collectors. The absorber temperature must not exceed 80°C at the
temperature sensor.
Terminals for connecting level sensors can be used for convenient automatic control of the water level in the
swimming pool. There are also terminals for connecting a flow sensor or a pressure switch, and a winding
thermostat contact. These provide extra protection for the filter pump against potential damage from dry-
running of the filter installation.
Spare terminals are available for connecting additional devices such as underwater lights and chemical dosing
equipment. A load (230V/max. 3A) connected to terminal U4 (auxiliary output) can be timed to switch on and
off by its own dedicated timer in the unit. Terminal U3 (dosing equipment) carries 230 V only while filtration is
running, but is de-energized outside filtration times. Terminals 15&16 (dosing equipment) are volt-free floating
contacts for custom use. The relay contact between terminals 15 and 16 is closed while filtration is running,
and open outside filtration times. This contact is rated for a maximum voltage of 230V and a maximum power
of 400W (cos
ϕ
=0.6).
Terminals 19&20 are volt-free floating contacts that can be used for fault indication.
The connecting terminals for the winding protection switch (WSK terminals) can be used to connect a winding
thermostat built into the filter-pump motor winding. If this thermal switch opens, e.g. as a result of the motor
winding getting too hot, the filter pump is switched off automatically along with the heating and dosing
equipment. Once the winding protection switch closes again after the motor winding has cooled down, the
units automatically switch back on. There is no need for a manual reset. The connecting terminals for the
winding protection switch carry 230V.
The motor protection device can only be used with 400V/50Hz filter pumps connected to terminals U1/V1/W1.
Motor protection is not active if you have selected a configuration using a variable speed pump or a 230V
pump.
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 ambient temperature must lie between 0° C and + 40° C and should vary as little as pos sible.
The relative humidity at the installation position must not exceed 95% and there must not be any condensation.
Avoid exposing the unit to direct heat or sunlight.
The power supply for the unit must be provided via an all-pole disconnection switch with a minimum contact
gap of 3mm and via a residual-current circuit breaker with a fault current I
FN
of
≤
30mA. When using variable-
frequency drives and variable speed pumps, the residual-current circuit breakers stipulated for these devices
