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The MITSUBISHI ELECTRIC dsd-400p is an outdoor unit mounting base designed to provide a stable, level foundation for mini-split or heat pump outdoor condensing units. This mounting base supports proper equipment positioning during installation, helping to maintain the clearances and orientation required for reliable system operation. It is a direct-fit accessory intended for use by licensed HVAC technicians installing or replacing outdoor units in residential or light commercial applications.
This mounting base is used in outdoor installations where a ground-level or pad-mount configuration is required. It elevates and supports the outdoor condensing unit, keeping it clear of ground moisture, debris, and minor flooding conditions. Typical installations involve setting the base on a prepared, level surface before positioning the outdoor unit on top and completing refrigerant line, electrical, and drain connections.
Designed as an OEM-style mounting base for MITSUBISHI ELECTRIC outdoor condensing units. Refer to the equipment installation manual or contact a MITSUBISHI ELECTRIC distributor to confirm fitment for a specific outdoor unit model.
Installation should be performed by a licensed HVAC technician in accordance with local mechanical codes and the equipment manufacturer's installation instructions. Before positioning the outdoor unit on the base, ensure the mounting surface is flat, level, and capable of supporting the full operating weight of the condensing unit. Power to the system must be disconnected and locked out before any work is performed on the outdoor unit or its connections.
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