OSF poolcontrol-30 - Additional Connections and Frost Protection; Dosing System Connection; Temperature Sensor; Frost Protection

PC-30 Filter control unit operating manual Page: 5
Further connection facilities
Filter control PC-30
20
21
Dosing system
(floating)
max. 230V / 4A
There is a floating relay contact between terminals 20 and 21. This can, for example, be
used for activation of the dosing system (the contact remains closed during filter
operation).
This contact can be loaded with a maximum of 230 V/4A.
Temperature sensor
Swimming pool
Temperature sensor
30
31
sensor
Solar-
32
33
Filter control PC-30
- Submerged
sleeve
The swimming pool temperature sensor is connected to terminals 30 and 31. The
temperature sensor is supplied with a cable length of 1.5 m as standard. If required, this
can be lengthened to maximum 20 m (cross-section minimum 0.5 mm²) with a 2-core
cable. You should avoid routing the sensor cable near power cables to prevent possible
interference.
Since precise temperature control can only be achieved with good heat transfer between
temperature sensor and swimming pool water, an immersed sleeve R ½" (Art. No.
3200200003) should be built into the piping system. The sensor polarity is as required.
A solar temperature sensor (Art. No. 3100000030) can additionally be connected to
terminals 32 and 33 (optional). The temperature sensor is supplied with a cable length of
20 m as standard. If required, this can be lengthened to maximum 50 m (cross-section
minimum 0.5mm²) with a 2-core cable. You should avoid routing the sensor cable near
power cables to prevent possible interference. The solar temperature sensor should be
connected at the solar collector output and must have good heat contact to the returning
water flow. The temperature at the temperature sensor installation site may not exceed 80
°C.
Frost protection
If the frost protection function has been switched on, a temperature sensor connected to
terminals 32 and 33 serves as the air temperature sensor for frost protection. The solar
temperature regulation is switched off during frost protection operation. If the swimming
bath does not have solar heating, this sensor is also installed in a suitable location
outside. As soon as the temperature at the temperature sensor falls below 0 °C, the filter
unit is activated. The temperature regulation system then controls the heater with a set
temperature of 3°C.