1. Introduction
Thank you for choosing the Carrier 1.5 Ton 5 Star Flexicool Inverter Split AC. This manual provides essential information for the safe and efficient operation, installation, and maintenance of your air conditioner. Please read it thoroughly before using the appliance and retain it for future reference.
Safety Precautions
- Always ensure the unit is installed by qualified personnel.
- Do not attempt to repair or modify the unit yourself. Contact authorized service personnel.
- Ensure the power supply matches the specifications of the unit.
- Keep the indoor and outdoor units clear of obstructions.
- Do not insert fingers or objects into the air inlet/outlet.
2. Product Overview and Key Features
The Carrier ESTER EDGE Gxi-CAI18EE5R36F0 is a 1.5 Ton 5 Star Flexicool Inverter Split AC designed for efficient and comfortable cooling. It incorporates advanced technology to optimize performance and energy savings.
Key Features:
- Flexicool Inverter Compressor: Variable speed compressor adjusts power based on heat load, offering 6-in-1 convertible modes for energy savings up to 50%.
- Smart Energy Display: Monitor power consumption directly on the unit.
- Dual Filtration: Equipped with HD & PM 2.5 Filter for improved indoor air quality.
- Insta Cool: Provides rapid cooling for quick comfort.
- Hydro Blue Coating: Anti-corrosion coating on the 100% copper condenser coil for enhanced durability and low maintenance.
- Auto Cleanser: Prevents internal moisture and dust buildup.
- Refrigerant Leakage Detector: Alerts users to potential refrigerant leaks.
- Stabilizer Free Operation: Operates within 135V~280V range.
- R32 Refrigerant: Environmentally friendly refrigerant with no ozone depletion potential.

Figure 2.1: Key Features Overview
3. Package Contents
Upon unpacking, please verify that all the following items are included in your package:
- Indoor Unit
- Outdoor Unit
- Inter Connecting Copper Pipe (9.84 feet / 3 meters)
- Remote Control
- User Manual
- Warranty Card

Figure 3.1: Unboxed Components
4. Installation Guidelines
Proper installation is crucial for the optimal performance and longevity of your air conditioner. It is mandatory that installation be performed by Carrier authorized service centers or representatives.
Installation Requirements:
- Ensure the installation site for both indoor and outdoor units is stable and can support their weight.
- Maintain adequate clearance around both units for proper airflow and maintenance.
- The outdoor unit requires proper drainage for condensate.
- Electrical wiring must comply with local regulations and the unit's specifications.
Unit Dimensions:
- Indoor Unit (IDU): 96.5 cm (W) x 32.4 cm (H) x 23.4 cm (D)
- Outdoor Unit (ODU): 89.0 cm (W) x 64.5 cm (H) x 35.5 cm (D)

Figure 4.1: Indoor and Outdoor Unit Dimensions
5. Operating Instructions
Your Carrier Flexicool Inverter AC comes with a remote control for convenient operation. Familiarize yourself with its functions to utilize all features effectively.
Remote Control Functions:
- Power Button: Turns the unit On/Off.
- Mode Button: Cycles through operating modes (Cool, Dry, Fan, Auto).
- Temperature Adjustment: Up/Down arrows to set desired temperature.
- Fan Speed: Adjusts fan speed (Low, Medium, High, Auto).
- Swing: Controls the vertical airflow direction.
- Insta Cool: Activates rapid cooling mode.
- Flexicool 6-in-1 Modes: Allows adjustment of cooling capacity to save energy. Refer to the remote for specific FC1-FC6 buttons or settings.
- Timer: Set auto On/Off times.
- Sleep Mode: Adjusts temperature automatically for comfortable sleep and energy saving.
- Follow Me Function: The remote control acts as a thermostat, sensing the temperature at its location.

Figure 5.1: Remote Control and 6-in-1 Convertible Modes
6. Maintenance
Regular maintenance ensures efficient operation and extends the lifespan of your AC unit. Always disconnect power before performing any maintenance.
User Maintenance:
- Filter Cleaning: The PM 2.5 filter should be cleaned regularly (e.g., every two weeks or as needed). Open the front panel of the indoor unit, remove the filters, clean them with a vacuum cleaner or wash with lukewarm water, and dry thoroughly before reinserting.
- Auto Cleanser Function: Utilize the Auto Cleanser feature to prevent mold and bacteria growth inside the indoor unit. Refer to your remote control or unit display for activation.
- Exterior Cleaning: Wipe the indoor and outdoor unit exteriors with a soft, damp cloth. Do not use harsh detergents or abrasive cleaners.
Professional Maintenance:
It is recommended to schedule professional servicing at least once a year to check refrigerant levels, clean coils, and inspect electrical components. This is particularly important for maintaining extended warranty validity.
7. Troubleshooting
Before contacting customer support, please refer to the following common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| AC not cooling effectively | Dirty air filters, blocked outdoor unit, incorrect mode setting, low refrigerant. | Clean air filters, clear obstructions from outdoor unit, select 'Cool' mode, contact service for refrigerant check. |
| Unit not turning on | No power supply, remote control battery low, circuit breaker tripped. | Check power connection, replace remote batteries, reset circuit breaker. |
| Unusual noise from unit | Loose parts, fan obstruction, unit not level. | Inspect for loose parts, remove obstructions, ensure unit is level. If noise persists, contact service. |
| Water leakage from indoor unit | Blocked drain pipe, improper installation, frozen coil. | Check and clear drain pipe, ensure proper installation angle. If coil is frozen, turn off unit and contact service. |
| Remote control not working | Batteries dead or incorrectly inserted, remote out of range, signal obstruction. | Replace batteries, ensure line of sight to indoor unit, operate within range. |
For issues not listed here or if solutions do not resolve the problem, please contact Carrier customer support.
8. Technical Specifications
Below are the detailed technical specifications for the Carrier ESTER EDGE Gxi-CAI18EE5R36F0 air conditioner:
| Feature | Specification |
|---|---|
| Brand | Carrier |
| Model Number | CAI18EE5R36F0 |
| Capacity | 1.5 Tons |
| Cooling Power | 4.8 Kilowatts (4800 Watts) |
| Energy Rating | 5 Star BEE Rating |
| ISEER Value | 5.6 |
| Annual Energy Consumption | 663.31 units (kWh) |
| Refrigerant Type | R-32 |
| Noise Level (Indoor Unit) | 38 Decibels |
| Indoor Unit Dimensions (W x H x D) | 96.5 cm x 32.4 cm x 23.4 cm |
| Outdoor Unit Dimensions (W x H x D) | 89.0 cm x 64.5 cm x 35.5 cm |
| Item Weight | Indoor Unit: 11.5 Kg, Outdoor Unit: 32 Kg (Total: 43.5 Kg) |
| Voltage | 230 Volts |
| Wattage | 1100 Watts |
| Compressor Type | Rotary Scroll (Inverter) |
| Filter Type | Pre-Filter, HD & PM 2.5 Filter |
| Control Method | Remote Control |
| Country Of Origin | India |
9. Warranty Information
Your Carrier air conditioner comes with a comprehensive warranty. To avail of the warranty, installation must be done through Carrier authorized service centers or representatives only.
- Standard Warranty: 1 Year on the entire unit + 5 Years on PCB + 10 Years on Compressor.
- Extended Warranty (Optional): An additional 4 Years post the 1-year standard warranty.
Extended Warranty Conditions:
- Registration fees must be paid at the time of installation.
- Two paid maintenance services per year (from the 2nd to 5th year) are mandatory to maintain extended warranty validity.
Please refer to the warranty card and the Carrier Midea India website for complete terms and conditions.
10. Customer Support
For any queries, service requests, or technical assistance, please contact Carrier customer support:
- Customer Care: 18001033333
- Manufacturer: Carrier Midea India Private Limited
- Address: 1st Floor, Pearl Tower, Plot no. 51, Sector-32, Gurgaon-122001
You can also visit the official Carrier Midea India website for more information and support resources.





