sauermann PE Série Manuel D'instruction page 3

Connect the black cable to one of the supply phases of the compressor power supply (see fig.2) or
of the three-way valve (chilled water applications) in order to start the pump whenever the air-
handling unit is in cooling mode. The presence of a 230 V supply on the black cable starts the
pump. When the compressor stops, the voltage drops to zero. The pump continues to operate for 3
minutes on overrun and stops.
In any case the black cable have not to be direct connected before the power switch.
Otherwise the pump will run continuously (see chapter 0).
2.3 Connection for model PE 5100 (Heat-pump, temperature differential sensors) see (fig. 3)
Position Blue sensor cable to air-off side of the air handling unit & the Red sensor cable on the
return-air side. The pump operates as soon as a temperature difference of 6°C +/- 2°C is sensed. It
will continue to operate as long as the temperature difference sensed is greater than 6°C +/- 2°C.
When the temperature difference sensed drops below 6°C +/- 2°C, the pump will continue to
operate on overrun for 3 minutes before stopping.
Warning: Temperature sensors must absolutely be placed into the air flow (Red: suction; Blue:
delivery) and never placed either in the condensate water or the condensate tray or in the false
ceiling for any reason. Otherwise the pump could run continuously (see chapter 0).
2.4 Connection for model PE 5200 (General Use, Remote Float Sensor) (see fig. 4)
Connect the interconnecting cable from the remote float sensor to the pump body.
The remote float sensor senses the presence of condensate & can start / stop the pump & send an
alarm signal if it detects an abnormal amount in the sump.
Important: The alarm provided is an 8A/250V resistive NC contact. This can be used to stop the
cooling cycle if an abnormal amount of condensate is detected & reduce the possibility of overflow
accidents. Please consult & follow the air conditioning manufacturers electrical diagram & alarm
connection recommendations at all times.
3. CONDENSATE CONNECTIONS
3.1 For models PE 5000 & PE 5100 (see fig. 2 and 3)
Condensate Removal
The suction end of the pump must be connected to the condensate tray fall pipe with the rubber
adapter tube, reducer adaptor & clear tube supplied. The suction tube must be securely connected
to the suction side of the pump (see Δ mark on cover plate) with the tie wraps supplied.
3.2 For model PE 5200 (see fig. 4)
a) Condensate Removal
The remote float detection unit must be connected to the condensate tray fall pipe with the
rubber adapter supplied.
b) Remote Float Detection Unit
The suction end of the pump (see Δ mark on cover plate) must be connected to one of the two
possible 7 mm connections on the remote float detection unit with clear 6 mm int. diam.
tubing. The unused 7 mm connection on the float detection unit must be capped with the cap
provided.