Oilon Lampoassa RE 28-48, Installation And Operation Manual

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● If a dedicated tank is used, install the sensor in the lower section of the tank.
● If a combined storage tank is used, install the sensor in the upper section of the
tank.
● Install the sensor probe (supplied with the unit) into a sensor pocket designed for
6-mm probes. The sensor pocket needs to extend into the interior of the tank by at
least 150 mm.
Install the sensor in a way that allows it to measure the temperature of the fluid in the
storage tank as accurately as possible. The sensor pocket needs to extend far enough
into the interior of the tank, and the sensor pocket’s internal diameter must be suitable
for the sensor probe’s diameter.
● Use only metallic sensor pockets that won't corrode to any significant degree (from
the outside or the inside) over time.
● The air gap between the probe and the pocket wall should be as small as possible.
If necessary, use thermal paste between the sensor probe and the pocket walls.
● To ensure that the sensor probe remains firmly seated at the bottom of the sensor
pocket, secure the sensor cable with a cable gland.
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.
If the heat pump will not be used for heating domestic hot water (and the sensor will not
be installed), disconnect the sensor’s wires from the heat pump’s control cabinet and
protect the bare wire ends. You can otherwise leave the sensor in place.
3.3 Buffer tank sensor
Installation
The heat pump comes with the buffer tank temperature sensor (B4) already connected.
Install the sensor in the buffer tank as specified in the piping diagram.
● If a dedicated tank is used, install the sensor in the upper section of the tank, below
the heating circuit outlets.
● If using a combined storage tank with separate sections for DHW heating and
space heating, install the sensor in the lower section of the tank.
● Install the sensor probe into a sensor pocket designed for 6-mm probes. The sensor
pocket needs to extend into the interior of the tank by at least 150 mm. The sensor
pocket is available as an accessory, see section
Accessories.
Install the sensor in a way that allows it to measure the temperature of the fluid in the
storage tank as accurately as possible. The sensor pocket needs to extend far enough
into the interior of the tank, and the sensor pocket’s internal diameter must be suitable
for the sensor probe’s diameter.
● Use only metallic sensor pockets that won't corrode to any significant degree (from
the outside or the inside) over time.
● The air gap between the probe and the pocket wall should be as small as possible.
If necessary, use thermal paste between the sensor probe and the pocket walls.
● To ensure that the sensor probe remains firmly seated at the bottom of the sensor
pocket, secure the sensor cable with a cable gland.
16 (74) M8009 2147EN