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Energy Class
Make
Cool Only

Set ASSG18CMTAZ · Indoor ASSG18CMTA · Outdoor AOSG18CMTA
18,000 BTU Cooling | Cool Only | Made in Thailand
Inverter control on both compressor and fan motor — cools faster than non-inverter models.
High-ambient-temperature compatible electric components with silicon coating on all PCB circuits for anti-corrosion.
New models are verified to withstand cooling operation at up to 55°C ambient.
Dedicated quiet mode brings the indoor unit down to just 30 dB(A) for undisturbed nights.
Delivers 594 CFM (1,010 m³/h) at super-high speed to cool the room evenly.
Blue fin coating protects against rust and salt damage; runs on R32 and clears MEPS 2020 efficiency standards.
Compressor warranty — the heart of the system is covered for a full ten years, reflecting O General's engineering standards and long-term reliability.
| Specification | ASSG18CMTAZ (Cool Only) |
|---|---|
| Cooling — T1 condition / T3 condition | |
| Cooling Capacity (T1) | 18,000 Btu/h — 5.28 kW (range 4,500–19,000) |
| Cooling Capacity (T3) | 16,800 Btu/h — 4.92 kW (range 4,200–16,800) |
| Input Power (T1 / T3) | 1.39 / 1.85 kW |
| Running Current (T1 / T3) | 6.4 / 8.4 A |
| Power Factor (T1 / T3) | 94.4 / 95.8 % |
| EER (T1 / T3) | 12.95 / 9.10 Btu/h·W — 3.80 / 2.66 kW/kW |
| SEER | 16.45 Btu/W·h |
| Sound Level, Indoor (S-High / Quiet) | 47 / 30 dB(A) |
| Moisture Removal | 2.50 pints/h — 1.43 L/h |
| Airflow Rate, Indoor (S-High) | 594 CFM — 1,010 m³/h |
| General | |
| Power Source | 230 V / 1Ø / 60 Hz |
| Refrigerant | R32 |
| Indoor Unit — H×W×D / Weight | 280 × 980 × 240 mm — 12.5 kg |
| Outdoor Unit — H×W×D / Weight | 632 × 799 × 290 mm — 35 kg |
Specifications based on SASO 2681 test conditions — T1: indoor 27°CDB / 19°CWB, outdoor 35°CDB / 24°CWB; T3: indoor 29°CDB / 19°CWB, outdoor 46°CDB / 24°CWB. SEER per SASO 2663:2021. ASSG18 indoor unit is a high-airflow model.
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