Ventilation; Electrical Connections - Kerbl C 10 Mode D'emploi

Important!
The water flow rate depends on
• Water pressure
• Pipe length and cross-section
• Number of tapers, pipe bends and drinking bowls
T-pieces, branches and spur lines should be avoided within the ring pipe.
1 m should be deducted from the total pipe length for each elbow.

6.8. Ventilation

Important!
Before the unit is put into operation for the first time and after maintenance work has been carried out, the water circuit must be
carefully bled. After the water connections have been established and checked on site:
1. Set the main switch of the control unit (item 1.4) to position 0=OFF.
2. Open the automatic bleeder valves (item 2) on the flow pipe and in the pipe system. To do this, open the black screw on the side. Do not close
when the unit is in operation.
3. Open the shut-off valve (item 9) on the supply line.
4. Install the shut-off valve (item 7) before and after the C10 circulation pump.
5. Close the two shut-off valves (item 8) on the bypass pipe. The water circuit must run via the circulation pump.
6. The air can now escape via the two bleeder valves (item 2). The bleeding process can be accelerated by operating the valves on the integrated
drinking bowls.
7. The bleeding process must be carried out several times if necessary.
Caution!
The circulation pump must never be operated without water. Doing so will cause irreparable damage to the pump as well as the
heating element.
8. The bleeding process can be accelerated with the help of the circulation pump. Note the points from Section 6. To do this, set the main
switch of the control unit (item 1.4) to position 1 = Circulation mode. The circulation pump is now switched on and the water circulates in the
ring pipe.

6.9 Electrical connections

Danger!
The electrical connection must be made in accordance with the regulations of the local power supply company. The respective
national regulations and guidelines must be observed.
• The unit may only be installed by an authorised specialist.
• The C10 circulation pump must be operated with a separate residual current circuit breaker.
• Connect the connecting cables of the unit to a mains disconnection device in accordance with the regulations.
Electrical connection: 230 V / L1 / N / PE / 50 Hz
Connection cable: 3 x 1.5 mm²
Junction box: IP 54
Residual current circuit breaker:
According to DIN VDE 0100 Part 200, protective equipotential bonding must be established at the designated point on the
flow pipe and the main equipotential bonding bar on the building.
Caution!
A faulty screw-in heating element or a faulty circulation pump can trigger the residual current circuit breaker and thus put the
circulation pump out of operation. This can result in water pipes freezing at correspondingly low ambient temperatures.
If the mains cable to this unit is damaged, it must be replaced by the manufacturer or authorised specialist authorised to avoid
danger.
30 mA
40