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ID518NNURS Specifications, Features & Compatibility Guide
The ID518NNURS 1.5 Ton AC delivers 5110W cooling power using Hexa Inverter technology to tackle extreme Indian heat. Its 5-star build achieves a 5.05 ISEER rating while consuming just 783.33 units annually.
Quick Answer
The ID518NNURS is recommended for homeowners seeking maximum energy savings without compromising thermal comfort. Its 100% copper condenser pairs with R32 refrigerant to ensure efficient heat exchange in 150 sq. ft. rooms. Given low 783.33 kWh yearly consumption, this remains an elite choice during high-usage months.
Ideal for medium-sized bedrooms, ID518NNURS 1.5 Ton units solve high electricity bill concerns. VFD modulation handles fluctuating heat loads efficiently to maintain consistent temperatures. This model represents the pinnacle of 5-star performance within urban households.
✓ Who Should Buy
- •1.5 Ton 5 Star performance suitable for Up to 150 sq.ft spaces.
- •Verified efficiency of 5.05 for reduced long-term operational costs.
- •Structural stability for consistent cooling under rigorous use cases.
- •Hardware durability via Copper coil and R32 technology.
- •Built-in grid protection with Stabilizer-free operation voltage management.
✕ Who Should Avoid
- •Spaces or usage requirements exceeding Up to 150 sq.ft rated capacity.
- •Installations prioritizing minimum capital expenditure over 5.05 performance.
- •Unstable grid conditions exceeding the functional threshold of Stabilizer-free operation.
- •Environments incompatible with air conditioners physical and thermal dissipation specs.
Product Overview
Delivering a rated cooling output of 5110W, the ID518NNURS is a 1.5 Ton 5 Star Fixed-Speed Split air conditioner purpose-built for rooms Up to 150 sq. ft. in India's high-ambient-temperature climate. Its Hexa Inverter Rotary uses Variable Frequency Drive (VFD) modulation to match real-time heat load, sustained by a 100% copper condenser and R32 refrigerant circuit. BEE 2025 ISEER of 5.05 positions it among the most economical models in the 1.5 Ton segment, with annual consumption of 783.33 kWh. Built-in 190–240V stabilizer-free operation protects the inverter PCB without external hardware — a critical advantage in tier-2 and semi-urban Indian installations. 5-in-1 Convertible mode flexibility allows tonnage adaptation for varying seasonal load. Certified for operation up to 52°C, this Fixed-Speed Split AC handles India's peak summer intensity without compressor thermal stress.
| Type | Split |
| Panel Display | Hidden |
| Brand | Blue Star |
| Model | ID518NNURS |
| Color | White |
| Launch Year | 2025 |
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Engineering Analysis
Energy performance of the ID518NNURS is anchored by its BEE 2025 5 Star certification and an ISEER of 5.05. Under standardised BEE test cycles, annual consumption is 783.33 kWh per year — placing it in the premium ISEER tier, roughly 35–40% more economical than 3-star fixed-speed models. The Hexa Inverter Rotary employs Variable Frequency Drive (VFD) control to match real-time thermal load — eliminating the energy-intensive stop-start cycles of fixed-speed motors. Peak electrical draw is 1300W at 230V nominal supply, with an inverter drive board maintaining power factor above 0.95 across all load states.
The ID518NNURS is built around 100% copper condenser coils, which outperform aluminium alternatives with 40% higher corrosion resistance — a critical durability metric for India's coastal zones, humid interiors, and regions with salt-laden particulate air. Copper's superior thermal conductivity (401 W/m·K vs aluminium's 205 W/m·K) means heat rejection is faster and more complete, directly preserving the rated ISEER across the product lifespan. R32 refrigerant carries a Global Warming Potential of 675 — 68% lower than R410A (GWP 2088) — requiring 30% less charge by weight, reducing both refrigerant leak risk and total lifecycle environmental load. Multi-stage filtration (HEPA, Anti-Microbial, Dust) captures PM2.5 particulates, volatile organic compounds, and microbial contaminants — delivering measurably healthier indoor air beyond raw temperature control. 4-Way motorised air distribution directs conditioned air uniformly across the room throw envelope, eliminating thermal stratification and hot-spot buildup. The Lifetime Warranty compressor warranty signals the manufacturer's projected confidence in mechanical durability under India's sustained 10–12 hour daily summer load patterns.
Stabilizer-free operation (190–240V) eliminates the need for external voltage hardware. Auto-restart with non-volatile memory ensures the ID518NNURS resumes at the last-set temperature and mode after power interruption — a functional reliability requirement for Indian grid zones experiencing 4–10 daily outages during peak summer months. Integrated Wi-Fi and app-based control enables schedule automation, real-time unit-level energy monitoring, and geofencing-based pre-cooling to minimise idle runtime and reduce consumption by up to 15%. The onboard diagnostic module performs 12 system integrity checks at every startup — refrigerant pressure levels, coil surface temperature, compressor current draw, fan motor RPM, and PCB supply voltage — flagging anomalies before they escalate into compressor failure events. Validated for 52°C maximum ambient operation — 7–9°C above the IEC 60335-2-40 standard test baseline of 43°C — the hardware thermal management stack is certified for India's harshest summer regions including Rajasthan, Vidarbha, coastal Andhra Pradesh, and the Gangetic plains.
Technical Support & FAQs
Engineering Analysis
Energy performance of the ID518NNURS is anchored by its BEE 2025 5 Star certification and an ISEER of 5.05. Under standardised BEE test cycles, annual consumption is 783.33 kWh per year — placing it in the premium ISEER tier, roughly 35–40% more economical than 3-star fixed-speed models. The Hexa Inverter Rotary employs Variable Frequency Drive (VFD) control to match real-time thermal load — eliminating the energy-intensive stop-start cycles of fixed-speed motors. Peak electrical draw is 1300W at 230V nominal supply, with an inverter drive board maintaining power factor above 0.95 across all load states.
The ID518NNURS is built around 100% copper condenser coils, which outperform aluminium alternatives with 40% higher corrosion resistance — a critical durability metric for India's coastal zones, humid interiors, and regions with salt-laden particulate air. Copper's superior thermal conductivity (401 W/m·K vs aluminium's 205 W/m·K) means heat rejection is faster and more complete, directly preserving the rated ISEER across the product lifespan. R32 refrigerant carries a Global Warming Potential of 675 — 68% lower than R410A (GWP 2088) — requiring 30% less charge by weight, reducing both refrigerant leak risk and total lifecycle environmental load. Multi-stage filtration (HEPA, Anti-Microbial, Dust) captures PM2.5 particulates, volatile organic compounds, and microbial contaminants — delivering measurably healthier indoor air beyond raw temperature control. 4-Way motorised air distribution directs conditioned air uniformly across the room throw envelope, eliminating thermal stratification and hot-spot buildup. The Lifetime Warranty compressor warranty signals the manufacturer's projected confidence in mechanical durability under India's sustained 10–12 hour daily summer load patterns.
Stabilizer-free operation (190–240V) eliminates the need for external voltage hardware. Auto-restart with non-volatile memory ensures the ID518NNURS resumes at the last-set temperature and mode after power interruption — a functional reliability requirement for Indian grid zones experiencing 4–10 daily outages during peak summer months. Integrated Wi-Fi and app-based control enables schedule automation, real-time unit-level energy monitoring, and geofencing-based pre-cooling to minimise idle runtime and reduce consumption by up to 15%. The onboard diagnostic module performs 12 system integrity checks at every startup — refrigerant pressure levels, coil surface temperature, compressor current draw, fan motor RPM, and PCB supply voltage — flagging anomalies before they escalate into compressor failure events. Validated for 52°C maximum ambient operation — 7–9°C above the IEC 60335-2-40 standard test baseline of 43°C — the hardware thermal management stack is certified for India's harshest summer regions including Rajasthan, Vidarbha, coastal Andhra Pradesh, and the Gangetic plains.