| key specs | 
| Capacity | 1.5 Ton | 1.5 Ton | 
| Star Rating | 3 Star | 3 Star | 
| Type | Inverter Split | Split | 
| Condenser Coil | Copper | Copper | 
| Power Requirement | AC 230V, 50Hz | AC 230 V, 50 Hz | 
| Power Consumption | 1700 W | 1720 W | 
| Dimensions | 94 cm x 27.5 cm x 20.5 cm | 970 mm x 300 mm x 225 mm | 
| Technology | Flexicool Technology, 4-in-1 AC Technology | Cold Plasma | 
| general | 
| Brand | Carrier | Blue Star | 
| Model | 1.5 Ton 3 Star Inverter Split AC (Ester CAI18ES3R30F1) | 1.5 Ton 3 Star Split AC (3CNHW18OATU) | 
| Release date | December 28, 2021 | - | 
| Model Name | Ester CAI18ES3R30F1 | 3CNHW18OATU | 
| Type | Inverter Split | Split | 
| Capacity | 1.5 Ton | 1.5 Ton | 
| Star Rating | 3 Star | 3 Star | 
| BEE Rating Year | 2022 | 2018 | 
| Colours | White | White | 
| Cooling and Heating | No | - | 
| Cooling Capacity | 5150 W | 5260 W | 
| Compressor | DC Inverter Compressor | Inverter Rotary | 
| Refrigerant | R - 32 | R32 | 
| Operating Modes | Flexicool (50%, 75%, 100% Power), Auto Mode, Sleep Mode, Dry Mode | Auto/Cool/Fan/Dry, Fan Modes Auto/High/Medium/Low, Energy Saver | 
| Dehumidification | Yes | No | 
| Condenser Coil | Copper | Copper | 
| Remote Control | Yes | Yes | 
| Technology Used | Flexicool Technology, 4-in-1 AC Technology | Cold Plasma | 
| dimensions | 
| Indoor W x H x D | 94 cm x 27.5 cm x 20.5 cm | 970 mm x 300 mm x 225 mm | 
| Indoor Unit Weight | 10.3 kg | 14 kg | 
| Outdoor W x H x D | 78 cm x 54 cm x 25 cm | 899 mm x 596 mm x 378 mm | 
| Outdoor Unit Weight | 25.5 kg | 37.5 kg | 
| Other Dimensions | - | Suction Tube Size Outer Diameter: 12.7 mm, Liquid Tube Size Outer Diameter: 6.35 mm, Maximum Piping Capability Total: 25 m, Maximum Piping Capability Vertical: 10 m, Refrigerant Additional Charge Beyond 4 M: 15 g/m | 
| performance features | 
| Indoor Noise Level | High - 42 dB, Low - 37 dB | High - 44 dB, Low - 35 dB | 
| Panel Display | Yes | Yes | 
| Indoor Temperature Indicator | Yes | - | 
| Cooling Coverage Area | 111-150 sq.ft | NA sq ft | 
| Turbo Mode | Yes | Yes | 
| ISEER | 3.85 W/W | 3.55 W/W | 
| power features | 
| Power Requirement | AC 230V, 50Hz | AC 230 V, 50 Hz | 
| Power Consumption | 1700 W | 1720 W | 
| Operating Current | 8.2 A | - | 
| Other Power Features | Power Requirement Phase: 1 | Rated Cooling Capacity 50% Load: 2630 W, Cooling Power Input 50% Load: 741 W, Electricity Consumed in 1600 Hours Units/Year: 1147.82, Running Current: 7.47 A | 
| body and design features | 
| Evaporator Fin Type | Hydrophilic Coated Fins | Hydrophilic Blue | 
| Condenser Fin Type | Hydrophilic Coated Fins | Anti Corrosive Blue | 
| Stepped Louvers | Yes | - | 
| air flow and filter features | 
| Auto Air Swing | No | - | 
| Air Flow Direction | 2 Way Air Direction | - | 
| Other Air Flow Features | 4 Step Fan Speed | Airflow Volume Wet: Medium/Low - 359/306 CFM, Moisture Removal: 2 L/hrs, Motorised - Horizontal Louvre/Vertical Swing, Motorised- Vertical Louvre/Horizontal Swing, Airflow Direction Control | 
| Air Circulation | 580 CFM | 424 CFM | 
| Anti-bacteria Filter | No | Yes | 
| Dust Filter | Yes | Yes | 
| Active Carbon Filter | No | Yes | 
| Deodorizing Filter | No | - | 
| Other Filter Features | PM 2.5 Filter, HD Filter | Catechin, Silver Ion, Anti-Acarien, Vitamin C | 
| remote control features | 
| LED Backlit Buttons | No | - | 
| Night Glow Buttons | No | Yes | 
| Battery Type | 2 | - | 
| Other Features | Flexicool (50%, 75%, 100% Power), Auto Mode, Auto Swing, Follow Me, Auto Restart, My Mode (Favourite Mode) | Large LCD with Back Light | 
| convenience features | 
| Auto Restart | Yes | Yes | 
| Quiet Mode | No | No | 
| Timer | Yes | Yes | 
| Sleep Mode | Yes | Yes | 
| Memory Feature | No | Yes | 
| Self Diagnosis | No | Yes | 
| Emergency Operational Button | Yes | - | 
| Other Convenience Features | - | Acoustic Jacket on Compressor, Timer On/Off | 
| warranty | 
| Warranty Summary | 1 Year warranty on Product, 5 (1+4) Years on PCB and 10 (1+9) Years on Compressor | 1 Year on Product and 10 Years Compressor Warranty |