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WFA518LN Specifications, Features & Compatibility Guide
The WFA518LN delivers a robust 4850W cooling output, maintaining comfort in Indian rooms up to 150 sq. ft. even during extreme heat waves. Its 100% copper condenser and R32 refrigerant circuit ensure durability. This 5-star unit optimizes long-term energy savings.
Quick Answer
The WFA518LN is ideal for homeowners prioritizing energy efficiency in mid-sized bedrooms. Boasting a 3.59 ISEER rating and a 1045.04 kWh annual consumption, it significantly lowers electricity bills compared to standard models. Invest in this window AC for reliable, high-ambient performance and rapid cooling.
Choose the WFA518LN if you require consistent cooling for spaces up to 150 sq. ft. without the high maintenance of inverter systems. It resolves the pain point of rising summer power tariffs through superior 5-star thermal management. Secure this model for long-term operational cost reduction.
✓ Who Should Buy
- •1.5 Ton 5 Star performance suitable for Up to 150 sq.ft spaces.
- •Verified efficiency of 3.59 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 Standard power cycle voltage management.
✕ Who Should Avoid
- •Spaces or usage requirements exceeding Up to 150 sq.ft rated capacity.
- •Installations prioritizing minimum capital expenditure over 3.59 performance.
- •Unstable grid conditions exceeding the functional threshold of Standard power cycle.
- •Environments incompatible with air conditioners physical and thermal dissipation specs.
Product Overview
Delivering a rated cooling output of 4850W, the WFA518LN is a 1.5 Ton 5 Star Fixed-Speed Window air conditioner purpose-built for rooms Up to 150 sq. ft. in India's high-ambient-temperature climate. Its Rotary uses Variable Frequency Drive (VFD) modulation to match real-time heat load, sustained by a 100% copper condenser and R32 refrigerant circuit. BEE 2023 ISEER of 3.59 positions it among the most economical models in the 1.5 Ton segment, with annual consumption of 1045.04 kWh. Certified for operation up to 52°C, this Fixed-Speed Window AC handles India's peak summer intensity without compressor thermal stress.
| Type | Window |
| Panel Display | LED |
| Brand | Blue Star |
| Model | WFA518LN |
| Color | White |
| Launch Year | 2023 |
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Engineering Analysis
Energy performance of the WFA518LN is anchored by its BEE 2023 5 Star certification and an ISEER of 3.59. Under standardised BEE test cycles, annual consumption is 1045.04 kWh per year — competitive long-term operational cost over a 5-year ownership horizon. The 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 1350W at 230V nominal supply, with an inverter drive board maintaining power factor above 0.95 across all load states.
The WFA518LN 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 ("Dust) captures PM2.5 particulates, volatile organic compounds, and microbial contaminants — delivering measurably healthier indoor air beyond raw temperature control. 2-Way motorised air distribution directs conditioned air uniformly across the room throw envelope, eliminating thermal stratification and hot-spot buildup. The 10-Year compressor warranty signals the manufacturer's projected confidence in mechanical durability under India's sustained 10–12 hour daily summer load patterns.
Standard power management rated at 230V ensures safe operation. Auto-restart with non-volatile memory ensures the WFA518LN 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. 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 WFA518LN is anchored by its BEE 2023 5 Star certification and an ISEER of 3.59. Under standardised BEE test cycles, annual consumption is 1045.04 kWh per year — competitive long-term operational cost over a 5-year ownership horizon. The 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 1350W at 230V nominal supply, with an inverter drive board maintaining power factor above 0.95 across all load states.
The WFA518LN 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 ("Dust) captures PM2.5 particulates, volatile organic compounds, and microbial contaminants — delivering measurably healthier indoor air beyond raw temperature control. 2-Way motorised air distribution directs conditioned air uniformly across the room throw envelope, eliminating thermal stratification and hot-spot buildup. The 10-Year compressor warranty signals the manufacturer's projected confidence in mechanical durability under India's sustained 10–12 hour daily summer load patterns.
Standard power management rated at 230V ensures safe operation. Auto-restart with non-volatile memory ensures the WFA518LN 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. 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.