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Mitsubishi HM vs GS systems

leon_g | Posted in Mechanicals on

For our new 1000 sq ft garage build, the HVAC contractor proposed using Mitsubishi MUZ-GS18NA/MSZ-GS18 units.  However, they ended up installing MUZ-HM18NA/MSZ-HM18NA.

From what I can tell, the specified GS system is 21.5 SEER2, while the installed HM system is about 18 SEER2.

Are there any other differences between these two systems? 

It also looks like the GS system is about $1000 more expensive than the HM system, so I would think that I should be credited that difference?

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  1. leon_g | | #1

    According to the attached submittals, it also looks like the GS combo is Energy Star certified, while the HM is not.

    File format File format

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