Kohler MPAC 1500 — Remove Existing Controller and Components
Installation · M340+ Controller and Components
For the Kohler MPAC 1500, from the Kohler service manual.
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Before you start
- Hazardous voltage. Will cause severe injury or death. Disconnect all power sources before opening the enclosure.
Procedure
- Remove the plastic protective panel covering the electronic components on the bottom door.
- Disconnect plug P9.
- If the transfer switch is equipped with current transformers (CTs), remove all CTs from the power lines of the ATS.
- Disconnect the Auto/Inhibit ATS disconnect switch.
- Disconnect the AUTO/TEST switch and the bypass time delay pushbutton.
- Remove the AUTO/TEST switch, the BYPASS TIME DELAY pushbutton, and the ATS (AUTO/INHIBIT) disconnect switch.
- If equipped with meters, disconnect and remove all meters and the selector switch.
- Disconnect plug P24 and ground.
- Without disconnecting the leads, remove the mounting screws that secure transformers NCPT and ECPT and the terminal block to the lower panel.
- Remove the metal cover over the optional communication module, if present.
- Remove the controller and the lower panel.
Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.