Green Flow Solution logo
Schedule Service

ENERGY STAR AHRI details

Westinghouse WHM48SZA21S

ENERGY STAR Certified HP - Split System
Virtual Consultation

Brand and components

Indoor, outdoor, and system model details

Outdoor unit brandWestinghouse
Outdoor unit modelWHM48SZA21S
Indoor unit modelsDC61A44-245R
Model nameWH ULTRA HD-COIL
Model numberWHM48SZA21S

Related product models

Outdoor unit model WHM48SZA21S Westinghouse model match
WHM48SZA21S product image Westinghouse WHM48SZA21S Air-source heat pump

Performance specs

Capacity and efficiency

Cooling Capacity (BTUH)
42000
Heating Capacity 47F (BTUH)
42000
Heating Capacity 17F (BTUH)
31200
Heating Capacity 5F (BTUH)
34600
Seer2
15.55
HSPF2 Region IV
8.55
EER2 AFull 95F
11.40
COP at 5F
1.94
Refrigerant Type
R-410A

Eligibility

Rebates and certifications

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.

Higher SEER2

Trane

Split-system heat pump

5TWX6042A1 — Trane AHRI 218110741

AHRI 218110741

Indoor model / pattern
5TEM6D07AV51+TDR+TSTAT
Cooling · BTU/h
41,500
SEER2
16.00
HSPF2
8.10

Cooling capacity (listed) · HSPF2 Region IV

Cooling capacity −1.2%Similar cooling capacity.Lower HSPF2 (Region IV): 8.10 vs. 8.55
  • Different refrigerant: R-454B (current: R-410A).
  • Lower heating capacity at 17°F: 25,200 BTU/h.
  • Lower heating capacity at 5°F: 18,800 BTU/h.
View AHRI
Higher SEER2

Trane

Split-system heat pump

5TWX5042A1 — Trane AHRI 215687387

AHRI 215687387

Indoor model / pattern
5PX*D010AS3+TSTAT+P0V0D000M50SD
Cooling · BTU/h
41,500
SEER2
16.50
HSPF2
8.10

Cooling capacity (listed) · HSPF2 Region IV

Cooling capacity −1.2%Similar cooling capacity.Lower HSPF2 (Region IV): 8.10 vs. 8.55
  • Different refrigerant: R-454B (current: R-410A).
  • Lower heating capacity at 47°F: 39,000 BTU/h.
  • Lower heating capacity at 17°F: 25,400 BTU/h.
  • Lower heating capacity at 5°F: 19,100 BTU/h.
View AHRI
Similar cooling capacity

Carrier

Split-system heat pump

27SCA542A**30* — Carrier AHRI 214179990

AHRI 214179990

Indoor model / pattern
FJ5AN*D60L*
Cooling · BTU/h
42,500
SEER2
15.20
HSPF2
7.80

Cooling capacity (listed) · HSPF2 Region IV

Cooling capacity +1.2%Similar cooling capacity.Lower HSPF2 (Region IV): 7.80 vs. 8.55
  • Different refrigerant: R-454B (current: R-410A).
  • Lower heating capacity at 17°F: 25,600 BTU/h.
  • Lower heating capacity at 5°F: 19,900 BTU/h.
View AHRI
Similar cooling capacity

Carrier

Split-system heat pump

27SPA642A**30* — Carrier AHRI 214179991

AHRI 214179991

Indoor model / pattern
FJ5AN*D60L*
Cooling · BTU/h
42,500
SEER2
15.20
HSPF2
7.80

Cooling capacity (listed) · HSPF2 Region IV

Cooling capacity +1.2%Similar cooling capacity.Lower HSPF2 (Region IV): 7.80 vs. 8.55
  • Different refrigerant: R-454B (current: R-410A).
  • Lower heating capacity at 17°F: 25,600 BTU/h.
  • Lower heating capacity at 5°F: 19,900 BTU/h.
View AHRI
Same cooling capacity

Lennox

Split-system heat pump

ML17XP1-042-230A** — Lennox AHRI 214861239

AHRI 214861239

Indoor model / pattern
CBK47UHET-048-230-0*
Cooling · BTU/h
42,000
SEER2
15.20
HSPF2
8.10

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower HSPF2 (Region IV): 8.10 vs. 8.55
  • Lower heating capacity at 17°F: 26,200 BTU/h.
  • Lower heating capacity at 5°F: 20,000 BTU/h.
View AHRI
Higher SEER2

Lennox

Split-system heat pump

EL17XP1-042-230A** — Lennox AHRI 210293753

AHRI 210293753

Indoor model / pattern
CBA38MV-042-230*+TDR
Cooling · BTU/h
41,500
SEER2
15.60
HSPF2
8.30

Cooling capacity (listed) · HSPF2 Region IV

Cooling capacity −1.2%Similar cooling capacity.Lower HSPF2 (Region IV): 8.30 vs. 8.55
  • Lower heating capacity at 17°F: 26,200 BTU/h.
  • Lower heating capacity at 5°F: 20,600 BTU/h.
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

Showing services from our catalog

Brands We Service

Popular cities

Service Areas