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Mass Save AHRI details

ZERO ZMSB-12HVT-USHHR2

ENERGY STAR Certified · Mass Save Eligible HP - Mini or Multi Split
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Brand and components

Indoor, outdoor, and system model details

Outdoor unit brandZERO
Outdoor unit modelZMSB-12HVT-USHHR2
Indoor unit brandZERO
Indoor unit modelsZMSB-12HVT-USHHR2
Model nameZ-MAX US R454B Hyper Heat
Model numberZMSB-12HVT-USHHR2

Performance specs

Capacity and efficiency

Cooling Capacity (BTUH)
12000
Heating Capacity 47F (BTUH)
12600
Heating Capacity 17F (BTUH)
10000
Heating Capacity 5F (BTUH)
9100
Seer2
24.00
HSPF2 Region IV
10.00
EER2 AFull 95F
13.00
COP at 5F
2.10
Refrigerant Type
R-454B

Eligibility

Rebates and certifications

Mass Save QPL
Yes
ENERGY STAR Certified
Yes
ENERGY STAR Cold Climate Certified
Yes

Explore your options

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Higher SEER2

Carrier

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37MARAQ12AA3 — Carrier AHRI 215323750

AHRI 215323750

Indoor model / pattern
45MAHAQ12XA3
Cooling · BTU/h
12,000
SEER2
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HSPF2
10.70

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 25.50 vs. 24.00
  • Lower heating capacity at 5°F: 8,400 BTU/h.
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Same cooling capacity

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Mini / multi-split heat pump

37MARAQ12AA1 — Carrier AHRI 215323748

AHRI 215323748

Indoor model / pattern
45MAHAQ12XA1
Cooling · BTU/h
12,000
SEER2
23.50
HSPF2
9.50

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower HSPF2 (Region IV): 9.50 vs. 10.00
  • Lower heating capacity at 5°F: 7,700 BTU/h.
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Higher SEER2

Bosch

Mini / multi-split heat pump

BMS500-AAS012-1CSXRD — Bosch AHRI 215223298

AHRI 215223298

Indoor model / pattern
BMS500-AAU012-1AHWXD
Cooling · BTU/h
12,000
SEER2
25.50
HSPF2
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Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 25.50 vs. 24.00
  • Lower heating capacity at 5°F: 8,400 BTU/h.
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Same cooling capacity

Bosch

Mini / multi-split heat pump

BMS500-AAS012-1CSXRC — Bosch AHRI 207760045

AHRI 207760045

Indoor model / pattern
BMS500-AAU012-1AHCXB
Cooling · BTU/h
12,000
SEER2
22.70
HSPF2
10.00

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower SEER2: 22.70 vs. 24.00
  • Different refrigerant: R-410A (current: R-454B).
  • Lower heating capacity at 17°F: 8,900 BTU/h.
  • Lower heating capacity at 5°F: 8,000 BTU/h.
View AHRI
Same cooling capacity

Fujitsu

Mini / multi-split heat pump

AOUH12KPAS1 — Fujitsu AHRI 215212610

AHRI 215212610

Indoor model / pattern
ASUH12KPAS
Cooling · BTU/h
12,000
SEER2
24.00
HSPF2
10.50

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.
  • Different refrigerant: R-32 (current: R-454B).
  • Lower heating capacity at 17°F: 8,700 BTU/h.
  • Lower heating capacity at 5°F: 8,500 BTU/h.
View AHRI
Same cooling capacity

Fujitsu

Mini / multi-split heat pump

AOUH12LMAH1 — Fujitsu AHRI 206263450

AHRI 206263450

Indoor model / pattern
ASUH12LMAS
Cooling · BTU/h
12,000
SEER2
23.00
HSPF2
11.20

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower SEER2: 23.00 vs. 24.00
  • Different refrigerant: R-410A (current: R-454B).
View AHRI

Side by side

See the differences

Your current system and up to two alternatives. Scroll the table to see every system.

Comparison does not confirm installation compatibility, availability, or current incentive eligibility. Unknown and qualified source values are not treated as zero.

Our Services

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AHRI Certificate Matching Support service
ResidentialCommercialSupport

AHRI Certificate Matching Support

Match supported indoor and outdoor equipment combinations to AHRI certification records for planning and documentation.

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Heat Pump Sizing and Selection service
ResidentialCommercialConsultation

Heat Pump Sizing and Selection

Plan supported heat-pump equipment and capacity using building conditions, climate, distribution, and backup-heat needs.

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HVAC Load Calculation and Equipment Sizing service
ResidentialCommercialConsultation

HVAC Load Calculation and Equipment Sizing

Evaluate building loads and system requirements to support correctly sized HVAC replacement or conversion planning.

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Mass Save Equipment Eligibility Verification service
ResidentialSupport

Mass Save Equipment Eligibility Verification

Review equipment, AHRI data, and current program requirements before a rebate application or proposal is finalized.

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Mass Save Rebate and AHRI Support service
ResidentialCommercialSupport

Mass Save Rebate and AHRI Support

Verify matched equipment details and prepare source information for rebate planning.

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Electrical Load Calculation for HVAC Upgrades service
ResidentialCommercialConsultation

Electrical Load Calculation for HVAC Upgrades

Review available electrical capacity and upgrade requirements for planned heat-pump, AC, or HVAC equipment.

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