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Tag Archives: 501705

What type of splice should I use when joining sensor cables to system wiring?

What type of splice should I use when joining sensor cables to system wiring? Do not use wire nuts or connectors. Solder all wire connections, and cover them with shrink wrap tubing. Additionally, since most shrink wrap tubing is not rated as high temp or UV resistant, make sure that those connections are tucked inside UV sheathing, but outside the pipe insulation. See the SunMaxx “Sensor to Wire Connections” installation guide for the entire step-by-step process. Sensor to Wire Connections Installation Guide.pdf

My sensor cable is only 4 feet long. How do I wire it from the controller all the way to the collectors?

My sensor cable is only 4 feet long. How do I wire it from the controller all the way to the collectors? First off, when wiring to the collectors, make sure you use the high temp sensor (usually black or red). One end of the sensor cable has the sensor, which needs to be at the hot end of the collector array, and the other end has crimped wires that fit easily and securely into controller slots. So, the best thing to do is cut the sensor cable in half, and use each half where it is meant to be […]

Setting your solar thermal system differential temperature setpoint.

Q:What is the most appropriate differential temperature for my solar thermal system? A: The factory setting on our controllers is 12 Degrees. This will work fine but for northern climates it is better to have a delta T of 17 Degrees. This will allow the collector to heat up sufficiently so as to not turn the pump on and off early in the cold mornings. In warmer climates, say mid-latitude and below you can keep the factory setting at 12 deg F.

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