Mini-Split Check

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ACiQ ACIQ-36Z-HH-M5C: certified ratings

Cooling 36,000 BTU/h · SEER2 up to 23 · HSPF2 up to 10.7 · up to 100% of 47°F heating capacity at 5°F · Cold climate: Yes

ENERGY STAR lists 1 certified indoor pairing for this outdoor unit. Series: ACIQ Series. Refrigerant: R-454B. Compressor: continuously variable (inverter), per ENERGY STAR.

All certified pairings (highest HSPF2 first)

Indoor unitSeriesCooling BTU/hSEER2EER2HSPF2Heat 47°FHeat 17°FHeat 5°F% of 47°F cap. at 5°FCOP 5°FCold climateRefrigerantAHRI ref.ENERGY STAR record
ACIQ Series36,000231310.736,00038,00036,000100%2YesR-454B (GWP:470 | Lower GWP)2160323013723290

"% of 47°F capacity at 5°F" = heating capacity at 5°F ÷ heating capacity at 47°F, both from the ENERGY STAR record (ENERGY STAR's cold-climate designation requires ≥70% and COP ≥1.75 at 5°F; criteria).

Rough running-cost yardstick (top-rated pairing)

kWh per 1,000 full-load hoursCost at U.S. avg rate
Cooling (36,000 BTU/h ÷ SEER2 23)1,565$287
Heating (36,000 BTU/h ÷ HSPF2 10.7)3,364$616

Cost estimates: cooling kWh ≈ cooling capacity × full-load hours ÷ SEER2 ÷ 1,000; heating kWh ≈ 47°F heating capacity × full-load hours ÷ HSPF2 ÷ 1,000. "Per 1,000 full-load hours" is a yardstick for comparing systems, not a prediction of your bill; your hours depend on climate, house and settings. Rate: U.S. average residential 18.31¢/kWh (EIA, July 2026 (preliminary)).

Estimate with your own hours and rate · Compare with another system

Similar-capacity single-zone units from other DIY brands

Outdoor unitBest SEER2Best HSPF2Best % cap. at 5°FCold climate
Senville SENA-36HF-MOB22.410.9103%Yes
Senville SENA-36HF-MOA2310.7100%Yes
Senville SENA-33HF-OG19.510.597%Yes
Pioneer YN036GMSI20RUG2010.370%Yes
Pioneer YN040GLSI24M4G22.51072%Yes
Senville SENA-33HF-OQ19.51099%Yes
MRCOOL DIY-MULTI5-36HP230D-O239.970%Yes
MRCOOL MULTI4-36HP230B23.99.568%No

All ACiQ units

See ACiQ on the manufacturer's site (plain link, not an affiliate link)

We have not tested or installed this equipment. Data gaps: price, sound level, line-set length, warranty and installation requirements are not in ENERGY STAR data. Confirm the AHRI reference number on your quote matches a certified pairing.