O General 1.5 Ton (18,000 BTU) – ARGH18CMTA-U / AOGH18CBTA-U
Product Overview: The ARGH18CMTA-U is a 1.5 Ton (18,000 BTU/h) ducted split air conditioner ideal for bedrooms, small majlis, or office units up to ~25 m². Despite its compact size, it delivers powerful cooling with minimal noise, making it perfect for areas where quiet comfort is paramount. This model features all the series’ signature advantages – inverter compressor for energy savings, slim 240 mm indoor height, and an adjustable static pressure up to 150 Pa for versatile duct layouts. The matching AOGH18CBTA-U outdoor unit is designed to run efficiently even on the hottest summer days, ensuring stable cooling. Installation is straightforward thanks to the light weight and single-phase power, and maintenance is a breeze with easily accessible panels and filter.
Key Features:
- Energy-efficient cooling (5.19 kW capacity at T1 for only 1.48 kW input), whisper-quiet operation (down to 24 dB on Quiet mode), and flexible control options (wired remote and Wi-Fi app).
- It has an excellent EER of 11.96 (T1), reflecting lower running cost.
- At T3 conditions, it can still provide ~15,000 BTU/h cooling, ensuring comfort in extreme heat.
- Like all models, it comes with auto-restart, economy mode, and durable build for long life.
- Optional accessories include a wired thermostat controller and a WLAN adapter for smartphone control.
- This unit is often used in villas for master bedrooms or in small shops, delivering fast cooling and even air distribution through ducts.
Detailed Specifications – ARGH18CMTA-U (Indoor) / AOGH18CBTA-U (Outdoor):
Specification |
Value (1.5 Ton Model) |
Cooling Capacity (T1) |
17,700 BTU/h (5.19 kW) — [Min 6,210 – Max 18,700 BTU/h] |
Cooling Capacity (T3) |
15,000 BTU/h (4.40 kW) — [Min 6,480 – Max 15,800 BTU/h] |
Energy Efficiency Ratio |
EER 11.96 BTU/W (3.51 W/W) at T1; ~9.2 BTU/W at T3 |
Power Supply |
220–240V, 1-Phase, 50 Hz (Indoor power fed from outdoor) |
Power Input (Cooling) |
1.48 kW (T1); 1.63 kW (T3) |
Running Current |
6.9 A (T1); 7.5 A (T3) |
Moisture Removal |
2.0 liters/hour (approx.) |
Airflow (Indoor Fan) |
1,177 CFM (High) / 712 CFM (Quiet); 2,000 m³/h max |
Sound Pressure (Indoor) |
32 dB(A) (High) / 24 dB(A) (Quiet) |
Sound Pressure (Outdoor) |
≤70 dB(A) (max) |
Dimensions (Indoor Unit) |
240 × 1,000 × 700 mm (H×W×D) |
Dimensions (Outdoor Unit) |
542 × 799 × 290 mm (H×W×D) |
Weight (Indoor/Outdoor) |
30.5 kg / 27 kg (Net) |
Refrigerant |
R32, 0.68 kg charge |
Piping Connections |
Liquid: 6.35 mm (1/4"); Gas: 12.70 mm (1/2") – Flare type |
Static Pressure Range |
30–150 Pa (adjustable via controller) |
Operating Range |
Indoor: 18–32 °C, ≤80% RH; Outdoor: 18–55 °C (cooling mode) |
Controller Options |
Wired remote controller (optional); Wi-Fi app control (with adapter) |
Usage Note: The 18,000 BTU model is best suited for smaller spaces. It can be ducted to 2-3 small rooms or two medium rooms, depending on cooling load calculations. For optimal performance, ensure duct design falls within the static pressure capability (up to 150 Pa). Maintenance is simple – check the filter monthly and have the unit serviced annually for cleaning and refrigerant check. This model’s compact outdoor unit can even be wall-mounted on brackets if ground space is limited.