Grandaire / AIR-SOURCE HEAT PUMP

W5H5S19*K*AAA*

15 SEER2 HP

28 published source records · source checked Sep 21, 2026

SEER2 range15.2–16BTU/Wh
HSPF2 range7.8–8BTU/Wh
Cooling capacity17,700–19,300BTU/h

Each efficiency range summarizes published EPA records for W5H5S19*K*AAA*. The highest SEER2 and HSPF2 may belong to different combinations. Open a source record below to see its ratings and the scope of its component information.

Model patterns and component strings are preserved exactly. How to read model patterns and combinations →

Heating performance & equipment details

Ranges include the 28 published source records for this model. Values in different rows may describe different configurations. Open an individual record to compare values from the same test configuration.

Reported fieldValue / rangeRecords supplying it
SEER2 · BTU/Wh15.2–1628 / 28
EER2 · BTU/Wh12.5–1328 / 28
HSPF2 · BTU/Wh7.8–828 / 28
Cooling capacity · BTU/h17,700–19,30028 / 28
Heating capacity at 47°F / 8.3°C · BTU/h18,400–19,50028 / 28
Heating capacity at 17°F / −8.3°C · BTU/h10,300–11,00028 / 28
Heating capacity at 5°F / −15°C · BTU/h7,900–8,50028 / 28
COP at 5°F / −15°C1.9–228 / 28
Equipment / loop typeHP - Split System28 / 28
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)28 / 28
Compressor stagingSingle stage28 / 28
Connected capabilityNo28 / 28

47°F = 8.3°C; 17°F = −8.3°C; 5°F = −15°C. COP is dimensionless. These are reported rating points, not a prediction of a particular home’s heat demand or operating limit.

Matched systems

Each row is one source record. The component column distinguishes listed combinations from outdoor-model ratings without an indoor configuration.

Indoor unit / required furnaceSEER2BTU/WhHSPF2BTU/WhHeating capacity at 5°F / −15°CBTU/hCOP at 5°F / −15°CRecord & comparison
FM(C,U)5Z30**AL*AHRI reference: 21768711216.008.0081002.00EPA 4506213
W5A*25M17XA*+ furnace: WFSU060B048B*AHRI reference: 21770578316.008.0084002.00EPA 4507768
W5A*25M17XA*+ furnace: WFE*045A036C*AHRI reference: 21770493716.008.0084002.00EPA 4507892
W5A*25M17XA*+ furnace: WFE*070A036C*AHRI reference: 21770498716.008.0083002.00EPA 4507942
W5A*25M17XA*+ furnace: WFE*070B036C*AHRI reference: 21770501216.008.0084002.00EPA 4507967
W5A*25M17XA*+ furnace: WFE*070B048C*AHRI reference: 21770503916.008.0084002.00EPA 4507994
W5A*25M17XA*+ furnace: WFE*090B042C*AHRI reference: 21770506616.008.0083002.00EPA 4508021
W5A*25M17XA*+ furnace: WFEU040B036B*AHRI reference: 21770517316.008.0083002.00EPA 4508233
W5A*25M17XA*+ furnace: WFEU060B048B*AHRI reference: 21770520016.008.0084002.00EPA 4508260
W5A*25M17XA*+ furnace: WFET045A036A*AHRI reference: 21770531316.008.0084002.00EPA 4508579
W5A*25M17XA*+ furnace: WFET070A036A*AHRI reference: 21770532016.008.0084002.00EPA 4508586
W5A*25M17XA*+ furnace: WFET090B048A*AHRI reference: 21770535016.008.0084002.00EPA 4508660
W5A*25M17XA*+ furnace: WFAX060B042B*AHRI reference: 21770549316.008.0084002.00EPA 4508740
W5A*25M17XA*+ furnace: WFAX080B048B*AHRI reference: 21770552016.008.0083002.00EPA 4508767
WCHL245*B*AHRI reference: 21768695215.507.8080001.90EPA 4505635
FM(C,U)5Z24**AL*AHRI reference: 21768708015.507.8081002.00EPA 4506177
FMA5X18**AL*AHRI reference: 21768720815.507.8079002.00EPA 4506327
FMA5X24**AL*AHRI reference: 21768724015.507.8079002.00EPA 4506442
WCGL245*B*AHRI reference: 21768728315.507.8081001.95EPA 4506485
FM(C,U)5Z18**AL*AHRI reference: 21768704815.507.8081002.00EPA 4506554

Sources and documentation

The table uses public EPA ENERGY STAR data. AHRI references are reported by EPA and have not been independently checked with AHRI. Source records do not establish availability, installation suitability or rebate eligibility.

No manufacturer manual has been matched to this model.

Collection method, revision history and known limitations →