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Compare mini-splits & heat pumps / MrCool Universal (2nd gen, R-454B)

MrCool Universal 4-ton R-454B (UHP18048-O + UAH18048-O)
MrCool · Universal (2nd gen, R-454B)

MrCool Universal 4-ton R-454B (UHP18048-O + UAH18048-O)

Model UHP18048-O · UAH18048-O

SCORE6.7 / 10

48,000 Btu/h at 5°F, its full rating, but a 13,500 Btu/h minimum at 47°F. Professional install required for warranty. We don't have a verified Amazon listing for this size.

Specs

SpecMrCool Universal 4-ton R-454B (UHP18048-O + UAH18048-O)
Nominal size48,000 BTU
Voltage230V
Rated heat at 47°F48,000 BTU/h
Heat at 17°F39,500 BTU/h
Heat at 5°F48,000 BTU/h
Lowest heating temp-22°F
Max heat at lowest temp27,200 BTU/h
SEER217.5
HSPF2 (Region IV)9.5
Install typeFlare
Max line run246 ft
Warranty covers owner installNo
Warranty, parts10 yr
Warranty, compressor10 yr
ENERGY STAR Cold ClimateYes
ENERGY STARYes
RefrigerantR-454B
Minimum heat output at 47°F13,500 Btu/h
Condenser electrical208/230V; 38 A MCA, 40 A max breaker
Air handler21.50 in wide, 187 lb; 115/208/230V auto-sensing; up to 0.8 in. w.c. external static
Line connectionsFlare or braze with vacuum (500 microns); optional No-Vac pre-charged line sets sold separately
Warranty10 yr parts and compressor, 2 yr labor; professional installer and authorized-dealer purchase required

Sources: NEEP ccASHP list · MRCOOL Universal R-454B brochure · MRCOOL Universal install manual (mc-uni-5-im-um-en) · MRCOOL Universal warranty (mc-uni-5-wr-en)

Before you buy

  • This is the 2nd-gen R-454B Universal (model numbers ending -O); most owner history online is about the discontinued R-410A first generation.
  • MRCOOL's printed warranty requires a professional installer and an authorized dealer; the Central Ducted Hyper Heat 2nd Gen warranty allows owner installs with the Quick Connect line set.
  • NEEP ratings with MRCOOL cased coils on a furnace are lower than with the matched UAH air handler, and some coil pairings aren't ENERGY STAR Cold Climate.

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