Oilon ECO Inverter+ 25, Installation And Commissioning Manual

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Install the sensor 0.5–2.0 m downstream from the control valve. Install the sensor
preferably downstream from the circulation pump. If the sensor is too close to the
valve, its readings will be inaccurate, and placing the sensor too far downstream will
cause harmful control delay.
Attach the sensor to a metallic pipe surface or in a metallic sensor pocket in the pipe.
Surface installation
● Attach the sensor firmly and securely against the pipe surface along the entire
length of the metal sleeve covering the sensor probe.
● Finish by adding thermal insulation to insulate the sensor from ambient air
temperature.
● If necessary, use thermal paste between the sensor probe and the pipe surface.
● It is advisable to attach the sensor along the pipe surface at the 3 o’clock or 9
o’clock position.
Installation in a sensor pocket
Iinstall the sensor in a pocket intended for 6 mm probes.
If the pipe has a small diameter, create a 90 degree turn in the line flow direction with a
tee fitting. Place the sensor pocket in the outlet that is parallel to the original line. The
probe itself should extend upstream from the turn. This will allow you to install even a
long sensor pocket (150–200 mm) along the line. The sensor pocket is available as an
accessory, see section
Accessories.
Tee fitting with sensor pocket ver. 1
Pos. Item
A Flow direction
B Tee fitting
C Sensor probe in pocket
D Sensor pocket connection
Using a tee connector to install a sensor pocket in a small-diameter pipe.
Sensor cable
The cable can be extended if required. Use a regular insulated copper twin cable for
connecting the cable and extending the cable (0.5 mm
2
, length < 40 m).
● Join or splice the cable ends in a way that causes no additional electrical resistance
in the wires.
● Protect the joint against moisture and oxidation.
M8003 2219EN 21 (54)