R-454B Refrigerant Charging TablesUpdated 4 days ago
Introduction
This article provides charge and area requirements for systems that use R-454B refrigerant.
The following systems use R-454B refrigerant:
- Diamante Pro (WYT-20)
- Quantum Ultra High-Wall (WYT-24)
- Quantum Hyperformance (WYT-25)
- Quantum Ultra Ceiling Cassette (CYT-24)
- Quantum Ultra Ducted Ceiling Concealed (RYT-24)
- Quantum Ultra Floor-Ceiling Flex (UYT-24)
- Vertex Ducted Central Split (DYC-18)
Maximum Charge
| Category | LFL (kg/m3) | h0 (m) | Floor Area (m2) Maximum Charge (kg) | ||||||
| 4 | 7 | 10 | 15 | 20 | 30 | 50 | |||
| R-454B | 0.296 | 0.6 | 0.36 | 0.62 | 0.89 | 1.27 | 1.46 | 1.79 | 2.32 |
| 1 | 0.59 | 1.04 | 1.48 | 2.11 | 2.44 | 2.99 | 3.86 | ||
| 1.8 | 1.07 | 1.86 | 2.66 | 3.81 | 4.39 | 5.38 | 6.95 | ||
| 2.2 | 1.3 | 2.28 | 3.26 | 4.65 | 5.37 | 6.58 | 8.49 | ||
| 2.6 | 1.54 | 2.69 | 3.85 | 5.5 | 6.35 | 7.77 | 10.03 | ||
| 3.0 | 1.78 | 3.11 | 4.44 | 6.34 | 7.32 | 8.97 | 11.58 | ||
Minimum Room Area
| Category | LFL (kg/m3) | h0 (m) | Charge Amount (M) (kg) Minimum Room Area (m2) | ||||||
| 1.776 kg | 2.664 kg | 3.552 kg | 5.328 kg | 7.104 kg | 8.88 kg | 11.544 kg | |||
| R-454B | 0.296 | 0.6 | / | 66.17 | 117.63 | 264.68 | 470.54 | 735.21 | 1,242.51 |
| 1 | / | 23.82 | 42.35 | 95.28 | 169.39 | 264.68 | 447.3 | ||
| 1.8 | / | 10 | 13.33 | 29.41 | 52.28 | 81.69 | 138.06 | ||
| 2.2 | / | 8.18 | 10.91 | 19.69 | 35 | 54.69 | 92.42 | ||
| 2.6 | / | 6.92 | 9.23 | 14.10 | 25.06 | 39.15 | 66.17 | ||
| 3.0 | / | 6.0 | 8.0 | 12.0 | 18.82 | 29.41 | 49.70 | ||