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Title: DX-Pl02 with a lifebreath 155 Max (first generation...)
Post by: fm1rt9n on January 18, 2022, 06:45:31 PM

Hi,

I want to replace my old 99-250 (4-wires) controller by the new one DX-Pl02 (3-wires).

This is possible the color coding seem R-G-Y the 99-250 have R-G-Y and a Black one...

What the black one do exactly? I can just leave it unplug?

My lifebreath is a 155 Max I assume is a first generation because the wires layout is not the same.
See picture

Any idea

Thank you!

Title: Re: DX-Pl02 with a lifebreath 155 Max (first generation...)
Post by: Admin on January 18, 2022, 07:12:53 PM

You should be safe eliminating the black wire. The old control needed it for a dehumidistat option that is now built into your new control.

Title: Re: DX-Pl02 with a lifebreath 155 Max (first generation...)
Post by: fm1rt9n on January 18, 2022, 07:54:58 PM

Hi,

Thank you very much for your quick response.

Have a nice evening,

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HVAC Forums => HVAC Help => Topic started by: fm1rt9n on January 18, 2022, 06:45:31 PM