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INA318K50 Specifications, Features & Compatibility Guide
INA318K50 delivers 5200W cooling capacity through a durable copper condenser built for Indian summers hitting 52°C. Its 3.81 ISEER rating ensures efficient power usage across 150 square feet while maintaining quiet operation.
Quick Answer
Yes, the INA318K50 is an excellent choice for efficient cooling in moderate-sized rooms up to 150 sq ft. Its 1.5 Ton 3 Star rating with an ISEER of 3.81 ensures reduced energy bills, while the 100% copper condenser and Rotary compressor offer robust performance. Built to withstand India's 52°C peak temperatures, it delivers reliable comfort.
Opt for the INA318K50 if you need efficient 1.5 Ton cooling for up to 150 sq ft and prioritize long-term savings from its 3.81 ISEER. However, avoid if your space exceeds this capacity or if initial capital expenditure overrides the benefits of sustained energy performance.
✓ Who Should Buy
- •1.5 Ton 3 Star performance suitable for Up to 150 sq ft spaces.
- •Verified efficiency of 3.81 for reduced long-term operational costs.
- •Structural stability for consistent cooling under rigorous use cases.
- •Hardware durability via Copper coil and R410A 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 3.81 performance.
- •Unstable grid conditions exceeding the functional threshold of Standard power cycle.
- •Environments incompatible with air conditioners physical and thermal dissipation specs.
Product Overview
At the core of the INA318K50 is a Rotary running on R410A refrigerant, backed by a 100% copper condenser — a hardware combination engineered for sustained peak performance in rooms Up to 150 sq. ft.. Rated cooling capacity is 5200W, with a BEE 2018 ISEER of 3.81 — placing it in the efficiency-compliant range for 1.5 Ton 3 Star Inverter Split ACs. Validated for 52°C maximum ambient operation, the INA318K50 is built for India's hottest months, with indoor noise held at 36-45 dB(A).
| Type | Split |
| Panel Display | LED |
| Brand | Mitashi |
| Model | INA318K50 |
| Color | White |
| Launch Year | 2018 |
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Engineering Analysis
Energy performance of the INA318K50 is anchored by its BEE 2018 3 Star certification and an ISEER of 3.81. Annual energy usage follows BEE standardised test protocols for its star class. The Rotary employs Variable Frequency Drive (VFD) control, modulating compressor RPM continuously between 15 Hz and 120 Hz to match real-time thermal load — eliminating the energy-intensive stop-start cycles of fixed-speed motors. Peak electrical draw is 1825W at 220 - 240V nominal supply, with an inverter drive board maintaining power factor above 0.95 across all load states.
The INA318K50 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. R410A refrigerant carries a Global Warming Potential of within BEE and Montreal Protocol approved thresholds for the Indian market. 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 INA318K50 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 INA318K50 is anchored by its BEE 2018 3 Star certification and an ISEER of 3.81. Annual energy usage follows BEE standardised test protocols for its star class. The Rotary employs Variable Frequency Drive (VFD) control, modulating compressor RPM continuously between 15 Hz and 120 Hz to match real-time thermal load — eliminating the energy-intensive stop-start cycles of fixed-speed motors. Peak electrical draw is 1825W at 220 - 240V nominal supply, with an inverter drive board maintaining power factor above 0.95 across all load states.
The INA318K50 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. R410A refrigerant carries a Global Warming Potential of within BEE and Montreal Protocol approved thresholds for the Indian market. 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 INA318K50 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.