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FSA318K50 Specifications, Features & Compatibility Guide
FSA318K50 provides 5400W cooling capacity for 150 sq. ft. spaces utilizing robust 100% copper components. High 3.72 ISEER ratings minimize annual power consumption during humid Indian seasons while maintaining silent 40dB operations.
Quick Answer
Yes, you should consider the FSA318K50 if you need an energy-efficient 1.5 Ton fixed-speed AC for spaces up to 150 sq ft. Its 3.72 ISEER and low 100 kWh annual consumption make it a smart long-term investment, offering competitive operational costs over 5 years. This model prioritises verifiable ROI within 3 seasons over initial capital expenditure, making it a sound choice for cost-conscious users.
Opt for the FSA318K50 if your room is up to 150 sq ft and you seek significant long-term energy savings from a 3-star fixed-speed AC, leveraging its 3.72 ISEER. Avoid this model if your space exceeds its capacity or if your budget strictly prioritises minimal upfront costs over verifiable efficiency and future savings.
✓ Who Should Buy
- •1.5 Ton 3 Star performance suitable for Up to 150 sq ft spaces.
- •Verified efficiency of 3.72 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 3.72 performance.
- •Unstable grid conditions exceeding the functional threshold of Standard power cycle.
- •Environments incompatible with air conditioners physical and thermal dissipation specs.
Product Overview
Consuming just 100 kWh annually under BEE 2018 standardised conditions, the FSA318K50 is one of the most economical 1.5 Ton 3 Star Fixed-Speed Split air conditioners for rooms Up to 150 sq. ft. — backed by ISEER 3.72, delivering a verifiable ROI within 3 seasons over standard 3-star alternatives. Its 5400W rated cooling output is sustained by a Rotary, 100% copper condenser, and R32 refrigerant — a hardware configuration built for long-term performance in India's humid and tropical climate. Indoor acoustics are rated at 40-64 dB(A), ensuring quiet cooling suitable for study and sleep environments. Validated for sustained peak operation at 52°C ambient temperature.
| Type | Split |
| Panel Display | LED |
| Brand | Mitashi |
| Model | FSA318K50 |
| Color | White |
| Launch Year | 2018 |
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Engineering Analysis
Energy performance of the FSA318K50 is anchored by its BEE 2018 3 Star certification and an ISEER of 3.72. Under standardised BEE test cycles, annual consumption is 100 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 1450W at 220 - 240V nominal supply, with an inverter drive board maintaining power factor above 0.95 across all load states.
The FSA318K50 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, Anti-bacterial) 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 5 Years 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 220 - 240V ensures safe operation. Auto-restart with non-volatile memory ensures the FSA318K50 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 FSA318K50 is anchored by its BEE 2018 3 Star certification and an ISEER of 3.72. Under standardised BEE test cycles, annual consumption is 100 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 1450W at 220 - 240V nominal supply, with an inverter drive board maintaining power factor above 0.95 across all load states.
The FSA318K50 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, Anti-bacterial) 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 5 Years 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 220 - 240V ensures safe operation. Auto-restart with non-volatile memory ensures the FSA318K50 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.