What PV System Type do I currently have installed?

There are two different types of PV installations that can be performed by your installer. To identify your current installation the easiest  method is to  look at the transmitter 


A Type 1 Henley Block installation will have two sensor cables in ports 1 and 2 


A Type 2 Consumer Unit installation will have a Y Cable connected to the transmitter as shown below  -please note other cables not shown for simplicity two  sensor leads are then connected to the Y Cable and a 3rd sensor cable to port 2 of the transmitter 

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