2-wire or 3-wire System for MasterTemp?

[mnmpizza]

Getting ready to Remote Hookup the new MasterTemp-400 into my EasyTouch.

If I plan to heat the spa or pool, do I need a 2-wire or 3-wire setup for the 24v wires?

Thanks; Shannon

 

[mnmpizza]

Nice pic of the kitchen, too…

 

[Jimrahbe]

Shannon,

The EasyTouch only uses the two wire system...

Some of the other automation systems use the three wire..

Thanks,

Jim R.

 

[mnmpizza]

I gotcha. I sort of surmised that; but wasn’t 100%.

If I upgrade to an IntelliCenter (whenever that arrives); I’m guessing that’s still a 2-wire…??

My Pool Builder is 100% Hayward. I convinced him that I only wanted Pentair. So I have to keep him honest With all the Pentair stuff.

 

[JamesW]

The new system should have RS485, which is the way to go.

Get the Intellicenter.

https://www.pentair.com/content/dam/extranet/nam/pentair-pool/residential/manuals/heaters/mastertemp/Manual-MasterTemp-472592-English.pdf

 

[ajw22]

If I upgrade to an IntelliCenter (whenever that arrives); I’m guessing that’s still a 2-wire…??

RS-485 connection from the new model MasterTemp heater that you have to the IntelliCenter gives you diagnostics and heater status messages directly on the IntelliCenter displays. You don't need to go to the heater to see what is on its display panel.

 

[mnmpizza]

So, an RS-485 utilizes a 3-strand data control wire (grn, yel, blk) that also carries 14vdc? But, this won’t work with my current EasyTouch Panel?? I have to wait until my IntelliCenter Panel arrives?

 

[JamesW]

So, an RS-485 utilizes a 3-strand control wire (grn, yel, blk) that also carries 14vdc? But, this won’t work with my current EasyTouch Panel?? I have to wait until my IntelliCenter Panel arrives?

The wires only carry 15 volts if the red wire is used, but the red wire is only needed for things that need power, like a remote display device.

The heater is already powered, so the red wire is not used.

Only the data wires (yellow and green) are used.

Black is also specified, but probably not necessary.

This should work with EasyTouch.

 

[mnmpizza]

Thanks James…

 

[setsailsoon]

If I upgrade to an IntelliCenter (whenever that arrives); I’m guessing that’s still a 2-wire…??

Whenever it arrives? It's been out a couple years.

Chris

 

[JamesW]

My PB has installed an Easy Touch panel while I wait on a back ordered IntelliCenter.

 

[setsailsoon]

Thanks James.

 

[mnmpizza]

Updated pic of the equipment area:

 

[ajw22]

Updated pic of the equipment area:
View attachment 382306

Do you have the proper combustion air supply for an indoor heater?

https://www.pentair.com/content/dam/extranet/nam/product-related/product-manuals/pool-and-spa-equipment/mastertemp/MasterTemp_and_Max-E-Therm_Heater_Direct_air_Intake_Duct_with_3_inch_PVC_Pipe_Kit_Installation_Instructions_English.pdf

 

[mnmpizza]

About 10x the amount needed… 2x 500 sq in openings. 1 low on right and 1 behind me in the picture. It’s also 500 sq inches…

 

[mnmpizza]

Here are some renderings with the openings