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6.3. Sensors

6.3.1. Sensor Information

a) The Apricus controller comes pre-wired for power and control of the Grundfos pump. All sensor wires

must be installed manually. The controller is able to read up to 5 temperature sensors as well as data from

digital flow meters.

The most common positions for the sensors are as follows:

Sensor 1 (T1): Collector

Sensor 2 (T2): Bottom of the tank

Sensor 3 (T3): Between ⅓ and halfway down from top of tank

Correct sensor locations for various system configurations are presented in the system diagrams in the

Apricus OG-300 Schematics and Parts List Manual.

b) The Apricus controller utilizes PT1000 type sensors (thermistors) that have no polarity.

c) Sensors should not be fully immersed in water.

d) Sensors should be coated with silicone thermal paste to aid heat transfer.

e) Protect Sensor Wires: Sensor wires should not be exposed to sunlight and must be protected from

contact with sharp metal edges that could cut the wire or through its insulation. This is especially important

Apricus Solar Collector Installation & Operation Manual - USA

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Cli-mate CLI-AP30 Spezifikationen Seite 48