11 Kimball Place
Mount Vernon, NY 10550
914-793-7700

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for larchmont, ny


Map of Larchmont NY
Mark E.

Mark E.


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View visual findings from this job here - https://visionshare.xoi.io/?id=XA-A243-52F8EB2F456A40539EDB2842BE2D5972 Customer has a lack of heating in the new extension that is controlled by the Mitsubishi ducted heat pump system: * Low pressures were found on January 20, 2026 But the outdoor temperature was too cold to charge system * Return to charge system back up to operating pressure * At arrival, the system is on and running- Connect gauges to the condensing unit to check refrigerant pressures- about 305 psi * I then spoke with Mitsubishi tech-support to confirm that there are no errors on the equipment and that the system is undercharged * Connected R410A Refrigerant tank two gauges after heating the tank up in hot water * Charge system back up with a little over 1 pound of refrigerant * After adjusting refrigerant pressures monitor heating operations- With a quote for heat, the system is on and running- Check and monitor refrigerant pressures and temperatures at condensing unit