Related Products
CAW18EC4R31F1 Specifications, Features & Compatibility Guide
The CAW18EC4R31F1 1.5 Ton 4 Star unit tackles regional voltage swings with built-in stabilizer-free protection from 190V to 240V. Its 100% copper condenser and R32 refrigerant ensure durable cooling during peak summer months.
Quick Answer
CAW18EC4R31F1 is recommended for medium-sized rooms requiring consistent performance under grid instability. Featuring 5000W cooling capacity plus a 3.21 ISEER rating, it maintains efficiency while consuming just 1206.06 kWh annually. Investors should pick the 1.5 Ton 4 Star inverter to achieve superior heat extraction.
CAW18EC4R31F1 excels in 150 sq. ft. spaces where fluctuating power often damages sensitive appliances. High-efficiency rotary compressors paired with eco-friendly R32 gas make it the definitive choice for modern Indian apartments.
✓ Who Should Buy
- •1.5 Ton 4 Star performance suitable for Up to 150 sq.ft. spaces.
- •Verified efficiency of 3.21 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 3.21 performance.
- •Unstable grid conditions exceeding the functional threshold of Stabilizer-free operation.
- •Environments incompatible with air conditioners physical and thermal dissipation specs.
Product Overview
Designed for India's grid realities, the CAW18EC4R31F1 integrates stabilizer-free operation across 190–240V — no external voltage regulator needed, even in tier-2 cities or areas with frequent power fluctuations. Its BEE 2022 4 Star certification and ISEER of 3.21 translate to 1206.06 kWh annual consumption — a premium efficiency outcome for rooms Up to 150 sq. ft.. Cooling capacity is rated at 5000W, delivered through a Rotary alongside a 100% copper condenser and R32 refrigerant system. At 56 dB(A) indoor, it remains acoustically suitable for bedrooms and quiet spaces. Certified for up to 52°C ambient operation, it covers the thermal range of every major Indian climatic zone.
| Type | Window |
| Panel Display | LED |
| Brand | Carrier |
| Model | CAW18EC4R31F1 |
| Color | White |
| Launch Year | 2022 |
Related Products
Engineering Analysis
Energy performance of the CAW18EC4R31F1 is anchored by its BEE 2022 4 Star certification and an ISEER of 3.21. Under standardised BEE test cycles, annual consumption is 1206.06 kWh per year — competitive long-term operational cost over a 5-year ownership horizon. 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 1558W at 230V nominal supply, with an inverter drive board maintaining power factor above 0.95 across all load states.
The CAW18EC4R31F1 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. Auto Swing 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 CAW18EC4R31F1 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. 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 CAW18EC4R31F1 is anchored by its BEE 2022 4 Star certification and an ISEER of 3.21. Under standardised BEE test cycles, annual consumption is 1206.06 kWh per year — competitive long-term operational cost over a 5-year ownership horizon. 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 1558W at 230V nominal supply, with an inverter drive board maintaining power factor above 0.95 across all load states.
The CAW18EC4R31F1 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. Auto Swing 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 CAW18EC4R31F1 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. 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.