Seite4, Pump sensor – REFCO SAHARA User Manual

Page 4

Fig.1.

Pump outlet

Pump inlet (from sensor)

Sensor
socket

Sensor
plug

Breather tube

Breather support

Sensor
inlet

Inlet
connector

Sensor
outlet

Pump

Sensor

Operation
The SAHARA sensor will automatically start the pump when condensate is detected and
stop the pump when the condensate has been removed. The SAHARA sensor is also
fitted with a high water level alarm that will operate the alarm relay if the water level rises
to abnormal levels. The pump will continue to run until the minimum water level is reached
and then the alarm will reset.

The SAHARA sensor can be positioned in any suitable location within the equipment
below the level of the collection tray. The top of the breather tube should be positioned
above the highest level that the condensate may reach. Three typical installations are
shown below. (Fig.4) Horizontal mounting, typical of high wall mounted fan units. (Fig.5)
Angled, typical of direct mounting to collection tray. (Fig.6) Vertical, typical of cassette unit
mounting.

Fig.2.

30°

Fig.3.

90°

Sensor installation
The SAHARA sensor can be installed at any angle between horizontal and vertical so long
as the breather tube inlet is above the condensate inlet (Fig. 3). The SAHARA sensor can
also be tilted sideways up to 30° from horizontal (Fig. 2).

Fig.4.

Fig.5.

Fig.6.