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I have a MicroPure MX4 that the previous homeowner left behind new in the box. This is a 24v unit and needs to be hardwired. My question is can I connect the two wires to the terminal where the thermostat comes in? They read 24v. I checked the R and C terminal for the 24v reading. OR should I connect to the blower connection?

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  • Did the unit come with instructions? If so, what do they say?
    – Tester101
    Oct 15, 2014 at 10:45

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From the Owner's manual.

Hardwiring Requirements (24V and 230V Operation)

For 24V models: Connect black and white wires to a dedicated 40Va transformer. (Not Provided.)

Notice that it says "to a dedicated 40Va transformer". This means that you'll have to install a 40VA transformer to power the device, not use the transformer in the HVAC unit.

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