J4 comm port MasterTemp

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T

Telemachus

0
Dec 7, 2014
126
Riverside
Pool Size
20000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
My buddy is installing his equipment, he has the newest Master temp with the RS 485 connections. Intellicenter.

The instructions are horrible. We found the ground and serial communication ports of the RS 485 connection, but cannot figure out where to connect the red wire. The instructions say pin one on Port j4, but we have no idea where that is.

Also, has anybody successfully connected to the heater bypass valve?
 
Last edited:
You do not connect the red wire. You connect 3 wires - Black, Green, Yellow.

J4 is the COMM connector block on the lower right of the heater PCB board. You see J4 on the upper left corner of the block.

Pentair_MasterTemp_New_Connected_Control_Board.png


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