Description
Inverter Efficiency. Window Simplicity.
1.5 Ton · Runs From 140 V · 100% Copper.
An inverter window AC — unusual in a format that is almost entirely fixed-speed · no outdoor unit, no piping through walls, no facade drilling, but with the variable-speed compressor that a split gives you · stabiliser-free from 140 V to 280 V, an unusually wide band that keeps it running through evening voltage sag · 1.5 ton for rooms up to about 150 sq ft · 100% copper — condenser, evaporator and connecting tubes · an anti-bacterial dust filter · hydrophilic Blue Fins · convertible mode to run reduced capacity · Turbo Cool, Comfort Sleep, Energy Saver, auto restart with memory, self diagnosis · R32 · ISEER 3.33 · 53 dB · 43 kg · 1 year + 5 years compressor · made in India
Inverter
windowan unusual combination
This machine solves a problem that used to have no answer. If your room can't take a split AC — rented flat, no balcony, society rules — you were previously stuck with a fixed-speed window unit, which runs at full power until the room hits temperature, switches off, then restarts at full power again. That means noticeable temperature swings and a compressor that keeps slamming on and off. An inverter compressor varies its speed instead, easing down once the room is cool and holding the temperature steadily rather than cycling. Steadier comfort, quieter running once settled, and lower draw through the hours it's just maintaining. You get the efficiency case for an inverter without needing anywhere to put an outdoor unit.
140 V to 280 V — the Delhi specification
Most air conditioners claim stabiliser-free operation over a narrow band. This one is rated to keep running down to 140 volts. That matters for a specific reason here: on the worst evenings of summer, when every AC on the street is running at once, supply voltage sags — and in older colonies and buildings it sags badly. A machine with a narrow band simply cuts out at exactly the hour you need it. A 140 V lower limit means this one keeps cooling through the dip instead of tripping and restarting, which is also easier on the compressor over the years. It isn't unlimited protection — supply outside the band, or a poor earth, still calls for external protection — but it's real resilience, not a marketing line.
The anti-bacterial filter — and why the filter matters more on a window unit
There's a practical reason this feature belongs on a window AC in particular. The whole machine sits in the window opening, so the filter sits right at the boundary between your room and the outside — taking the full load of road dust, construction dust and monsoon damp that a wall-mounted indoor unit is somewhat sheltered from. A filter that stays damp and dirty stops being protection and starts being a problem, which is where the musty smell from an old AC comes from. The anti-bacterial treatment inhibits growth on the filter media itself. It is not an air purifier and we won't claim it is — but on a window unit, cleaning that filter every two to three weeks matters more than on any other AC format.
✨ Modes and control
Convertible mode is the one to actually use — running reduced capacity when it's one person in the room is where an inverter's saving comes from. Ask for a two-minute remote demo at delivery.
🎯 Right for
If you can mount an outdoor unit and have permission, a split will run quieter indoors — tell us your situation and we'll advise honestly rather than push a format.
⚙️ Build
At 43 kg this is a heavy unit for a window — the sill and frame must be able to carry it securely, and that's worth checking before you order.
Condenser, evaporator and connecting tubes. Many window ACs use copper only in the condenser — and a copper leak can be brazed on site, where aluminium usually gets replaced.
Comes back after a power cut at exactly your settings — same mode, temperature and fan speed. Nobody hunts for the remote in the dark.
Shows an error code when something's wrong, so the technician arrives knowing where to look rather than diagnosing from scratch.
Correct opening size, a slight outward tilt for drainage, and a properly sealed frame. Get those right and the machine performs as specified.
| Brand / Model | Blue Star WIA318GXU ✅ |
| Type | Inverter window air conditioner ✅ |
| Capacity | 1.5 Ton — rooms up to approx. 150 sq ft ✅ |
| Energy Rating | 3 Star · ISEER 3.33 ✅ |
| Annual Consumption | 1173.28 kWh/year ✅ |
| Compressor | Inverter rotary ✅ |
| Coils & Tubes | 100% copper — condenser, evaporator, connecting tubes ✅ |
| Fin Protection | Hydrophilic Blue Fins ✅ |
| Air Filter | Anti-bacterial dust filter ✅ |
| Refrigerant | R32 ✅ |
| Voltage Range | 140 V – 280 V · stabiliser-free within this band ✅ |
| Modes | Convertible · Turbo Cool · Comfort Sleep · Energy Saver ✅ |
| Convenience | Auto restart with memory · self diagnosis · remote ✅ |
| Outdoor Unit | Not required ✅ |
| Noise Level | 53 dB ✅ |
| Dimensions (W×D×H) | 66 × 66 × 43 cm ✅ |
| Minimum Window Opening | 66 cm wide × 43 cm high ✅ |
| Weight | 43 kg ✅ |
| Power Supply | 230 V ✅ |
| Colour | White ✅ |
| Country of Origin | Made in India 🇮🇳 ✅ |
| Warranty | 1 Year comprehensive + 5 Years compressor ✅ |
Why buy from Mahajan Electronics?
- 📐 We size the AC to your actual room
- 100% genuine Blue Star with brand warranty
- 24-hour delivery across Delhi NCR
- GST invoice — save up to 18% on business purchases
- 45+ years of trust · rated 4.7 on Google
- Raja Garden · Jail Road · Dabri Mor
Order today. Delivered in 24 hours.
Blue Star WIA318GXU · 1.5 Ton Inverter Window AC · 3 Star · ISEER 3.33 · 140–280 V Stabiliser-Free · 100% Copper · Anti-Bacterial Filter · Blue Fins · R32 · 5-Year Compressor Warranty
Warranty as per Blue Star's terms and conditions — 1 year comprehensive and 5 years on the compressor, subject to T&C; the scope of cover, gas top-up terms, exclusions, installation requirements, product registration and the service process are subject to brand policy and the final invoice or warranty card. Installation, window or wall opening preparation, framing, carpentry, grill removal, sealing, support brackets, electrical wiring, MCB, socket provision, dismantling and civil work are chargeable separately unless expressly included on the final invoice; the customer is responsible for obtaining any landlord, building or society permissions required and for ensuring the opening and supporting structure are suitable for the unit's size and weight. Cooling performance, room coverage, ISEER, annual consumption, noise level and running cost vary with room size, ceiling height, insulation, sunlight exposure, floor level, occupancy, appliance heat load, opening size and sealing quality, installation tilt and mounting, filter condition, selected mode, thermostat setting, voltage and maintenance. The stated 150 sq ft is indicative guidance only; confirm sizing for your specific room before purchase. BEE star ratings, ISEER and annual unit figures are as certified at the time of manufacture under standard test conditions and are subject to periodic revision. Convertible modes operate the unit below rated capacity and cooling output is reduced accordingly. Stabiliser-free operation applies within the stated 140–280 V design range and does not protect against all electrical faults, surges or spikes; supply outside this range, or an unstable earth, may still require external protection. The anti-bacterial dust filter provides a degree of filtration and treated filter media while the unit is running; it is not an air purifier and makes no medical, health or air-quality guarantee, and performance depends on filter condition and regular cleaning. A window air conditioner houses the compressor within the room-side unit and is audible in normal operation. R32 refrigerant handling and servicing must be carried out only by qualified technicians. Image for reference only; actual serial number, manufacturing date, BEE label, unit design, remote, accessories, packaging and finish may vary by batch.
Made in India. Please Note: The image shown is for reference purposes only. Actual product details, including the serial number and manufacturing date, may vary.
