Tempstar / AIR-SOURCE HEAT PUMP
T5H6S18*K*AAA*
MAINLINE 16 SEER2 HP · EPA record 3713293
Source checked Sep 21, 2026
Performance & equipment details
Values below belong to EPA record 3713293. Temperature points and test metrics are preserved as reported. Missing and zero values are not substituted with estimates.
| Metric or attribute | Source value |
|---|---|
| SEER2 · BTU/Wh | 15.20 |
| EER2 · BTU/Wh | 12.00 |
| HSPF2 · BTU/Wh | 8.00 |
| Cooling capacity · BTU/h | 17800 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 18100 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 10800 |
| Heating capacity at 5°F / −15°C · BTU/h | 8500 |
| COP at 5°F / −15°C | 2.04 |
| Equipment / loop type | HP - Split System |
| Refrigerant / source-reported GWP | R-454B (GWP:470 | Lower GWP) |
| Compressor staging | Single stage |
| Connected capability | No |
This listed system
These ratings apply to the listed configuration. Changing a component may change performance.
Outdoor unit
+T5H6S18*K*AAA*Indoor unit
FM(C,U)5Z18**AL*AHRI reference 215828878 · reported by ENERGY STAR; no direct AHRI data connection.
All source records for T5H6S18*K*AAA* →Specifications & provenance
Every value below is preserved from the source record. Checked Sep 21, 2026. Asterisks and other model wildcards are retained as published.
| Source field | Reported value | Evidence |
|---|---|---|
| pd id | 3713293 | EPA Sep 21, 2026 |
| markets | United States, Canada | EPA Sep 21, 2026 |
| cop at 5 f | 2.04 | EPA Sep 21, 2026 |
| eer2 btu wh | 12.00 | EPA Sep 21, 2026 |
| series name | MAINLINE 16 SEER2 HP | EPA Sep 21, 2026 |
| cold climate | No | EPA Sep 21, 2026 |
| hspf2 btu wh | 8.00 | EPA Sep 21, 2026 |
| model number | T5H6S18*K*AAA* | EPA Sep 21, 2026 |
| product type | HP - Split System | EPA Sep 21, 2026 |
| seer2 btu wh | 15.20 | EPA Sep 21, 2026 |
| date certified | 2026-07-16T00:00:00.000 | EPA Sep 21, 2026 |
| manufacturer type | System Manufacturer | EPA Sep 21, 2026 |
| compressor staging | Single stage | EPA Sep 21, 2026 |
| energy star partner | Carrier Corporation | EPA Sep 21, 2026 |
| connected capability | No | EPA Sep 21, 2026 |
| refrigerant with gwp | R-454B (GWP:470 | Lower GWP) | EPA Sep 21, 2026 |
| ahri reference number | 215828878 | EPA Sep 21, 2026 |
| cooling capacity btu h | 17800 | EPA Sep 21, 2026 |
| outdoor unit brand name | Tempstar | EPA Sep 21, 2026 |
| date available on market | 2024-01-01T00:00:00.000 | EPA Sep 21, 2026 |
| indoor unit model number | FM(C,U)5Z18**AL* | EPA Sep 21, 2026 |
| energy star model identifier | ES_1020846_T5H6S18*K*AAA*_10092024013012_8557818 | EPA Sep 21, 2026 |
| heating capacity at 5 f btu h | 8500 | EPA Sep 21, 2026 |
| meets most efficient criteria | No | EPA Sep 21, 2026 |
| heating capacity at 17 f btu h | 10800 | EPA Sep 21, 2026 |
| heating capacity at 47 f btu h | 18100 | EPA Sep 21, 2026 |
| meets peak cooling requirements | Yes | EPA Sep 21, 2026 |
| controls verification procedure cvp test | None | EPA Sep 21, 2026 |