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UWKSIFG1918A5S INW18 Specifications, Features & Compatibility Guide
The UWKSIFG1918A5S INW18 delivers efficient cooling for 180 sq. ft. rooms using a 5-star inverter system. Stabilizer-free 190–240V operation ensures durability against Indian power fluctuations.
Quick Answer
Yes, you should buy the UWKSIFG1918A5S INW18 if you need reliable, energy-efficient cooling for rooms up to 180 sq.ft. Its 1.5 Ton 5 Star Inverter performance with an ISEER of 5 ensures lower electricity bills and consistent comfort. This model delivers sustained cooling even during India's demanding ambient temperatures, thanks to its robust build and advanced VFD-controlled Rotary compressor.
The UWKSIFG1918A5S INW18 is ideal for those prioritizing long-term energy savings and consistent cooling in spaces up to 180 sq.ft. Avoid if your requirements exceed this capacity or if initial capital expenditure outweighs verified 5-star operational efficiency.
✓ Who Should Buy
- •1.5 Ton 5 Star performance suitable for Up to 180 sq.ft. spaces.
- •Verified efficiency of 5 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 180 sq.ft. rated capacity.
- •Installations prioritizing minimum capital expenditure over 5 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 3550W, the UWKSIFG1918A5S INW18 is a 1.5 Ton 5 Star Inverter Split air conditioner purpose-built for rooms Up to 180 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 2018 ISEER of 5 positions it among the most economical models in the 1.5 Ton segment. 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. 3-in-1 Convertible mode flexibility allows tonnage adaptation for varying seasonal load. Certified for operation up to 52°C, this Inverter Split AC handles India's peak summer intensity without compressor thermal stress.
| Type | Split |
| Panel Display | LED |
| Brand | Koryo |
| Model | UWKSIFG1918A5S INW18 |
| Color | White |
| Launch Year | 2018 |
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Engineering Analysis
Energy performance of the UWKSIFG1918A5S INW18 is anchored by its BEE 2018 5 Star certification and an ISEER of 5. 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 980W at 230V nominal supply, with an inverter drive board maintaining power factor above 0.95 across all load states.
The UWKSIFG1918A5S INW18 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 (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.
Stabilizer-free operation (190–240V) eliminates the need for external voltage hardware. Auto-restart with non-volatile memory ensures the UWKSIFG1918A5S INW18 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 UWKSIFG1918A5S INW18 is anchored by its BEE 2018 5 Star certification and an ISEER of 5. 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 980W at 230V nominal supply, with an inverter drive board maintaining power factor above 0.95 across all load states.
The UWKSIFG1918A5S INW18 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 (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.
Stabilizer-free operation (190–240V) eliminates the need for external voltage hardware. Auto-restart with non-volatile memory ensures the UWKSIFG1918A5S INW18 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.