Panasonic / AIR-SOURCE HEAT PUMP
CU-4Z24BBUC
Multi Zone · EPA record 3844957
Source checked Sep 21, 2026
Performance & equipment details
Values below belong to EPA record 3844957. 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 | 24.00 |
| EER2 · BTU/Wh | 13.45 |
| HSPF2 · BTU/Wh | 11.40 |
| Cooling capacity · BTU/h | 24000 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 32000 |
| Heating capacity at 17°F / −8.3°C · BTU/h | Not supplied |
| Heating capacity at 5°F / −15°C · BTU/h | 27000 |
| COP at 5°F / −15°C | 1.85 |
| Equipment / loop type | HP - Mini or Multi Split |
| Refrigerant / source-reported GWP | R-32 (GWP:675 | 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
+CU-4Z24BBUCIndoor unit
CS-MXZ5AKUA, CS-MXZ7AKUA, CS-XZ9AKUAW, CS-XZ12AKUAW, CS-XZ15AKUAW, CS-XZ18AKUAW, CS-XZ24AKUAW, CS-Z9AKUAW, CS-Z12AKUAW, CS-Z15AKUAW, CS-Z18AKUAW, CS-Z24AKUAWAHRI reference 216441721 · reported by ENERGY STAR; no direct AHRI data connection.
All source records for CU-4Z24BBUC →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 | 3844957 | EPA Sep 21, 2026 |
| markets | United States, Canada | EPA Sep 21, 2026 |
| cop at 5 f | 1.85 | EPA Sep 21, 2026 |
| eer2 btu wh | 13.45 | EPA Sep 21, 2026 |
| series name | Multi Zone | EPA Sep 21, 2026 |
| cold climate | Yes | EPA Sep 21, 2026 |
| hspf2 btu wh | 11.40 | EPA Sep 21, 2026 |
| model number | CU-4Z24BBUC | EPA Sep 21, 2026 |
| product type | HP - Mini or Multi Split | EPA Sep 21, 2026 |
| seer2 btu wh | 24.00 | EPA Sep 21, 2026 |
| date certified | 2024-10-04T00:00:00.000 | EPA Sep 21, 2026 |
| manufacturer type | System Manufacturer | EPA Sep 21, 2026 |
| compressor staging | Continuously variable | EPA Sep 21, 2026 |
| energy star partner | Panasonic | EPA Sep 21, 2026 |
| connected capability | No | EPA Sep 21, 2026 |
| refrigerant with gwp | R-32 (GWP:675 | Lower GWP) | EPA Sep 21, 2026 |
| ahri reference number | 216441721 | EPA Sep 21, 2026 |
| cooling capacity btu h | 24000 | EPA Sep 21, 2026 |
| indoor unit brand name | Panasonic | EPA Sep 21, 2026 |
| outdoor unit brand name | Panasonic | EPA Sep 21, 2026 |
| date available on market | 2024-12-01T00:00:00.000 | EPA Sep 21, 2026 |
| indoor unit model number | CS-MXZ5AKUA, CS-MXZ7AKUA, CS-XZ9AKUAW, CS-XZ12AKUAW, CS-XZ15AKUAW, CS-XZ18AKUAW, CS-XZ24AKUAW, CS-Z9AKUAW, CS-Z12AKUAW, CS-Z15AKUAW, CS-Z18AKUAW, CS-Z24AKUAW | EPA Sep 21, 2026 |
| energy star model identifier | ES_0031845_CU-4Z24BBUC5_00000000000000_0000000 | EPA Sep 21, 2026 |
| heating capacity at 5 f btu h | 27000 | EPA Sep 21, 2026 |
| meets most efficient criteria | Yes | EPA Sep 21, 2026 |
| heating capacity at 47 f btu h | 32000 | EPA Sep 21, 2026 |
| meets peak cooling requirements | No | EPA Sep 21, 2026 |