Product Overview
This manual provides essential information for the safe and efficient operation of your Blue Star 1.5 Ton 5 Star Wi-Fi Smart Inverter Split AC, model IC518ZNURS. Please read it thoroughly before using the appliance and keep it for future reference.

Image: Front view of the Blue Star 1.5 Ton 5 Star Wi-Fi Smart Inverter Split AC indoor unit.
Key Features:
- Capacity: 1.5 Ton, suitable for rooms between 121 to 180 sq ft.
- Energy Rating: 5 Star with an ISEER of 5.05, ensuring high energy efficiency.
- Wi-Fi Smart Control: Built-in Wi-Fi module for remote operation via a smart app.
- 5-in-1 Convertible Cooling: Adjusts cooling capacity to 5 different levels for varied comfort needs.
- AI Pro: Intelligent system that senses ambient and room conditions to optimize cooling and fan speed.
- DigiQ Hepta Sensors: 7 intelligent digital sensors for precise cooling and component protection.
- 4-Way Swing: Motorized horizontal and vertical louvers for uniform air distribution.
- Hexa Inverter Technology: Enhanced performance and energy savings.
- 100% Copper: Copper condenser for improved heat transfer and durability.
- R32 Refrigerant: Eco-friendly refrigerant.
- Special Modes: Comfort Sleep, Dry Mode, Eco Mode, Turbo Cool.
- Self Diagnosis: System for identifying operational issues.

Image: Energy Savings Guide and key features including Stabiliser-free operation, 100% Copper, Energy Saver, and R32 Eco-Friendly Refrigerant.
Setup and Installation
The Blue Star Split AC requires professional installation to ensure proper functioning and safety. It is a split system, consisting of an indoor unit and an outdoor unit.
Included Components:
- 1 Indoor Unit
- 1 Outdoor Unit
- 3m Copper wire
- 3.5m Inter Connecting Pipe
- 1 Remote Control
Installation Guidelines:
It is highly recommended to use authorized Blue Star service personnel for installation. Standard installation typically includes mounting of IDU & ODU, drilling for tubes and wires, and site cleaning. Additional charges may apply for extra piping, ODU stand, or other custom requirements.

Image: Table detailing standard service charges for Split AC installation and related services. GST is applicable.
For detailed service charges and inclusions/exclusions, please refer to the provided service charges table or contact Blue Star customer service.
Operating Instructions
Your Blue Star AC offers various modes and smart features for optimal comfort and energy efficiency.
Remote Control Operation:
Use the provided remote control to power on/off the unit, adjust temperature, change modes (Cool, Dry, Fan, Eco), set fan speed, and activate special features like 5-in-1 Convertible Cooling and Turbo Cool.
Smart Wi-Fi Features:

Image: Overview of Smart Wi-Fi AC features including Smart App, Voice Command Technology, Customised Sleep, Energy Management, AI Pro, and Smart Scheduler.
- Smart App Control: Download the Blue Star Smart App to control your AC from anywhere using your smartphone. This allows you to set temperature, change modes, and monitor usage remotely. Download the Blue Star Smart App.
- Voice Command Technology: Operate your AC using voice commands through compatible devices like Amazon Alexa or Google Home.
- AI Pro: This feature automatically adjusts cooling and fan speed based on both indoor and outdoor ambient temperatures for maximum comfort and efficiency.
- 5-in-1 Convertible Cooling: Press the dedicated button on the remote to cycle through 5 different cooling capacities (e.g., 100%, 80%, 60%, 40% capacity, and 110% Turbo mode) to match your cooling needs and save energy.
- 4-Way Swing: Activate the 4-way swing function for horizontal and vertical airflow, ensuring even cooling throughout the room.
- Customized Sleep: Program the AC to adjust fan speed and temperature hourly over a 12-hour period for personalized sleep comfort.
- Smart Scheduler: Set weekly schedules for your AC to automatically turn ON/OFF at specified times.
- Energy Management: Monitor your AC's energy consumption and set daily, weekly, or monthly usage limits via the smart app.

Image: Detailed view of the Blue Star Smart App interface, showcasing Customised Sleep, Voice Command, and Energy Management features.
Maintenance
Regular maintenance ensures the longevity and efficient performance of your Blue Star AC.
Filter Cleaning:
Clean the air filters regularly (every 2-4 weeks, depending on usage and air quality) to maintain optimal airflow and cooling efficiency. Refer to the user manual for specific instructions on how to remove and clean the filters.
Professional Servicing:
It is recommended to schedule professional servicing at least once a year, especially before the peak cooling season. This includes deep cleaning of coils, checking refrigerant levels, and inspecting all components. Blue Star offers wet cleaning plans for comprehensive maintenance.
Anti-Corrosive Blue Fins:
The AC is equipped with anti-corrosive blue fins on the evaporator and condenser coils, which help protect against corrosion and extend the unit's lifespan, reducing the frequency of certain maintenance tasks.
Troubleshooting
If you encounter issues with your AC, refer to the following basic troubleshooting steps. For complex problems, contact Blue Star customer service.
Self Diagnosis Feature:
Your AC is equipped with a self-diagnosis feature that can display error codes on the indoor unit's display. Consult the full user manual (available on the Brand website) for a list of error codes and their meanings.
Common Issues:
- No Power: Check the power supply, circuit breaker, and ensure the unit is properly plugged in.
- Poor Cooling: Ensure air filters are clean, doors and windows are closed, and the temperature setting is appropriate. Check for obstructions around the outdoor unit.
- Unusual Noise: Minor operational noises are normal. If you hear loud or unusual sounds, turn off the unit and contact service.
- Water Leakage: Check if the drain pipe is clogged or improperly installed. Ensure the indoor unit is level.
If the problem persists after basic troubleshooting, do not attempt to repair the unit yourself. Contact Blue Star customer support for assistance.
Specifications
Detailed technical specifications for the Blue Star IC518ZNURS Split AC.

Image: Diagram showing the dimensions of the indoor and outdoor units, along with compressor and PCB warranty details.
| Specification | Value |
|---|---|
| Brand | Blue Star |
| Model | IC518ZNURS |
| Capacity | 1.5 Tons |
| Energy Efficiency | 5 Star (ISEER: 5.05) |
| Annual Energy Consumption | 783.33 Kilowatt Hours |
| Noise Level | 45 Decibels |
| Installation Type | Split System |
| Special Features | 4 Way Swing, Active Carbon Filter, Fast Cooling, Inverter Compressor, WiFi Enabled |
| Colour | White |
| Voltage | 230 Volts |
| Wattage (Cooling Power) | 5110 Watts |
| Indoor Unit Dimensions (WxDxH) | 95 x 22.3 x 31.7 cm |
| Outdoor Unit Dimensions (WxDxH) | 78 x 25 x 52.6 cm |
| Item Weight | 36.2 kg (IDU: 10.8 Kg, ODU: 25.4 Kg) |
| Refrigerant | R32 |
Warranty Information
Your Blue Star AC comes with a comprehensive manufacturer's warranty.

Image: Blue Star Warranty Offer, indicating 60 months (5 years) warranty on product and 10 years on inverter compressor.
- Product Warranty: 5 Years on the entire product.
- Inverter Compressor Warranty: 10 Years on the Inverter Compressor.
Coverage Details:
The warranty covers repairs, rectification, or replacement of components such as the Electronic PCB, Indoor Unit Evaporating Coil, and Outdoor Unit Condenser Coil. This warranty applies to residential usage only.
Exclusions:
The warranty excludes all types of air filters, plastic and metal parts, the remote handset, and gas charging unless it is associated with a defect in the Compressor, Evaporator, or Condenser coil. Gas charging costs not covered by the warranty will be borne by the customer.
To avail warranty services, please retain your Amazon invoice and the warranty card provided with the product.
Support
For any queries, service requests, or technical assistance, please contact Blue Star customer support.
Contact Information:
- Email: customerservice@bluestarindia.com
- Phone: 89 7678 1177
Smart App Download:
For remote control and smart features, download the Blue Star Smart App:


