Thermal Zone / AIR-SOURCE HEAT PUMP
TZID24H520ZCS
TZ Series · EPA record 4569760
Source checked Sep 21, 2026
Performance & equipment details
Values below belong to EPA record 4569760. 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 | 16.10 |
| EER2 · BTU/Wh | 10.30 |
| HSPF2 · BTU/Wh | 9.30 |
| Cooling capacity · BTU/h | 24000 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 25000 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 18000 |
| Heating capacity at 5°F / −15°C · BTU/h | 20000 |
| COP at 5°F / −15°C | 1.80 |
| Equipment / loop type | HP - Split System |
| Refrigerant / source-reported GWP | R-454B (GWP:470 | Lower GWP) |
| Compressor staging | Continuously variable |
| Connected capability | No |
This listed system
These ratings apply to the listed configuration. Changing a component may change performance.
Outdoor unit
+TZID24H520ZCSIndoor unit
+TZID24H520ZACBRequired furnace
GD9T960603BNAHRI reference 218079987 · reported by ENERGY STAR; no direct AHRI data connection.
All source records for TZID24H520ZCS →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 | 4569760 | EPA Sep 21, 2026 |
| markets | United States, Canada | EPA Sep 21, 2026 |
| cop at 5 f | 1.80 | EPA Sep 21, 2026 |
| eer2 btu wh | 10.30 | EPA Sep 21, 2026 |
| series name | TZ Series | EPA Sep 21, 2026 |
| cold climate | Yes | EPA Sep 21, 2026 |
| hspf2 btu wh | 9.30 | EPA Sep 21, 2026 |
| model number | TZID24H520ZCS | EPA Sep 21, 2026 |
| product type | HP - Split System | EPA Sep 21, 2026 |
| seer2 btu wh | 16.10 | EPA Sep 21, 2026 |
| date certified | 2026-03-09T00:00:00.000 | EPA Sep 21, 2026 |
| manufacturer type | System Manufacturer | EPA Sep 21, 2026 |
| compressor staging | Continuously variable | EPA Sep 21, 2026 |
| energy star partner | International Refrigeration Products | EPA Sep 21, 2026 |
| connected capability | No | EPA Sep 21, 2026 |
| furnace model number | GD9T960603BN | EPA Sep 21, 2026 |
| refrigerant with gwp | R-454B (GWP:470 | Lower GWP) | EPA Sep 21, 2026 |
| ahri reference number | 218079987 | EPA Sep 21, 2026 |
| cooling capacity btu h | 24000 | EPA Sep 21, 2026 |
| outdoor unit brand name | Thermal Zone | EPA Sep 21, 2026 |
| date available on market | 2026-01-30T00:00:00.000 | EPA Sep 21, 2026 |
| indoor unit model number | TZID24H520ZACB | EPA Sep 21, 2026 |
| energy star model identifier | ES_1108715_TZID24H520ZCS_01302026050005_28218079987 | EPA Sep 21, 2026 |
| heating capacity at 5 f btu h | 20000 | EPA Sep 21, 2026 |
| meets most efficient criteria | Yes | EPA Sep 21, 2026 |
| heating capacity at 17 f btu h | 18000 | EPA Sep 21, 2026 |
| heating capacity at 47 f btu h | 25000 | EPA Sep 21, 2026 |
| meets peak cooling requirements | No | EPA Sep 21, 2026 |
| controls verification procedure cvp test | ENERGY STAR CVP Test | EPA Sep 21, 2026 |