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Mass Save AHRI details

ZERO ZMSB-24HV-USR2-O

ENERGY STAR Certified · Mass Save Eligible HP - Mini or Multi Split
Virtual Consultation

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Green Flow Solution can help confirm the equipment match, project eligibility, utility requirements, and rebate paperwork before installation or replacement.

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Brand and components

Indoor, outdoor, and system model details

Outdoor unit brandZERO
Outdoor unit modelZMSB-24HV-USR2-O
Indoor unit brandZERO
Indoor unit modelsZMSB-24HV-USR2-I
Model nameZMSB Series
Model numberZMSB-24HV-USR2-O

Performance specs

Capacity and efficiency

Cooling Capacity (BTUH)
24000
Heating Capacity 47F (BTUH)
24000
Heating Capacity 17F (BTUH)
20800
Heating Capacity 5F (BTUH)
17000
Seer2
18.50
HSPF2 Region IV
9.00
EER2 AFull 95F
9.60
COP at 5F
2.11
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

Similar systems to compare

Scroll horizontally or use the arrow keys to explore.

Same cooling capacity

Carrier

Mini / multi-split heat pump

37MVRAQ24AA3 — Carrier AHRI 215323841

AHRI 215323841

Indoor model / pattern
D5MVHAQ24XA3
Cooling · BTU/h
24,000
SEER2
17.00
HSPF2
8.50

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower HSPF2 (Region IV): 8.50 vs. 9.00
  • Lower heating capacity at 17°F: 17,100 BTU/h.
View AHRI
Higher SEER2

Carrier

Mini / multi-split heat pump

37MARAQ24AA3 — Carrier AHRI 215323835

AHRI 215323835

Indoor model / pattern
45MBDAQ24XH3
Cooling · BTU/h
24,000
SEER2
19.00
HSPF2
11.00

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 19.00 vs. 18.50
View AHRI
Higher SEER2

Bosch

Mini / multi-split heat pump

BMS500-AAS024-1CSXRD — Bosch AHRI 215223308

AHRI 215223308

Indoor model / pattern
BMS500-AAU024-1AHDXD
Cooling · BTU/h
24,000
SEER2
19.00
HSPF2
11.00

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 19.00 vs. 18.50
View AHRI
Higher SEER2

Bosch

Mini / multi-split heat pump

BMS500-AAS024-1CSXRC — Bosch AHRI 207760017

AHRI 207760017

Indoor model / pattern
BMS500-AAU024-1AHCXC
Cooling · BTU/h
24,000
SEER2
21.50
HSPF2
9.70

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 21.50 vs. 18.50
  • Different refrigerant: R-410A (current: R-454B).
  • Lower heating capacity at 17°F: 19,000 BTU/h.
View AHRI
Higher SEER2

Fujitsu

Mini / multi-split heat pump

AOUH24LUAS1 — Fujitsu AHRI 211078835

AHRI 211078835

Indoor model / pattern
AMUG24LMAS
Cooling · BTU/h
24,000
SEER2
18.80
HSPF2
10.00

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 18.80 vs. 18.50
  • Different refrigerant: R-410A (current: R-454B).
  • Lower heating capacity at 17°F: 18,700 BTU/h.
View AHRI
Same cooling capacity

Fujitsu

Mini / multi-split heat pump

AOU24RGLX — Fujitsu AHRI 202537547

AHRI 202537547

Indoor model / pattern
ARU24RGLX
Cooling · BTU/h
24,000
SEER2
16.00
HSPF2
9.50

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower SEER2: 16.00 vs. 18.50
  • Different refrigerant: R-410A (current: R-454B).
  • Lower heating capacity at 17°F: 17,300 BTU/h.
View AHRI

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

Our Services

Showing services from our catalog

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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