Figure 36: MicroTech III Unit Controller with EC Motor – 208 /230-60-1 Unit Sizes 024-070
Drawing No. 910104890
Wiring diagrams are typical. For the latest
drawing version refer to the wiring diagram
located on the inside of the controls access
panel of the unit.
Note: Gray tinted areas in the wiring diagram: Units with factory installed communication module include Discharge Air Temperature (DAT) and
Return Air Temperature (RAT) sensors shipped loose and are field installed. The Leaving Water Temperature (LWT) sensor is factory installed.
Entering Water Temperature (EWT) sensor is included with ECM and/or Secondary Electric Heat.
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