S&P TERMOTECH-TS CE260N Manuel D'installation page 16

startING tHe UNIt Ce260N, Ce540N aND Ce540P
When first installed the unit should only be operated by a qualified electrician.
After wiring the unit, make sure all devices are properly connected and the terminals properly
secured.
Warning: the following operations are performed when
- Now check that the unit circuit breaker is open circuit (i.e. in the down position - OFF).
- Set the minimum trimmer to 0 (all the way anticlockwise).
- Close the circuit breaker providing energy to the unit's power supply line.
- Check that the incoming three-phase voltage at the power switch terminals is normal, and
that the phase sequence is correct: L1, L2, L3.
- Make sure the thermostat circuit breaker is open (no heating required), i.e. set to a
temperature lower than the ambient temperature.
- Set the unit master switch to ON.
- Check that the green power indicator LED on the circuit board lights up.
- Connect a current clamp to the power supply cables or a 500 V DC voltmeter to the
terminals providing the load.
- Close (activate) the thermostat.
- Check the voltage reading immediately. If the voltage exceeds 1020V or the current
exceeds 5 A and is choppy, this means the phase sequence is incorrect. To rectify this
situation swap only wires L2 and L3, leaving L1 in place.
This step should be taken in the first minute of firing: the unit then increases the voltage
gradually. If this step is taken after one or two minutes, the voltage shall normally be high.
An out of phase connection can also be detected by the irregular noise it causes the panels
to make.
- After the thermostat is switched on, the servo-fan starts and the LED indicator lights up.
The LED power on indicator (on the control panel) flashes during ramp-up and then remains
steady on when the unit is operating.
- When the thermostat is switched off the power on indicator goes off. The servo-fan and its
indicator go off after around 10 minutes.
the unit is connected to the electrical supply
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