Description
One Box. No Outdoor Unit.
1.5 Ton Window · Copper · Turbo.
A window AC, and for a lot of homes that's the right answer rather than the cheap one · everything in a single unit — no outdoor box, no wall to find for it, no long copper run between two halves · 1.5 ton with 4800 W of cooling for roughly 100–150 sq ft · a 100% copper condenser · turbo mode for a fast pull-down on a hot afternoon · 2-way auto swing · sleep mode, dry mode for the monsoon and an energy saver setting · rated to keep cooling at outdoor temperatures up to 50°C · R32 refrigerant · ISEER 3.21 W/W, about 1206 units a year · 1-year product warranty plus 5 years on the compressor
Why a
windownot a compromise
A window AC gets treated as the budget option, but for a lot of homes it's simply the correct one. Everything sits in one box in the window opening — there's no separate outdoor unit to mount, which matters more than people expect. No hunting for an external wall with space and a safe fixing. No bracket drilled into someone else's façade — which is why window units are often the only thing a landlord or an RWA will permit in a rented flat. No long copper run between two halves, and no gas joints out on a wall to develop a leak in year four. Installation is quicker and cheaper because there's one unit, not two, and it can be removed and taken with you if you move. Fewer parts outdoors also means less to go wrong.
Copper condenser, turbo mode and 50°C — what you actually get
The copper condenser is the specification worth checking on any window AC, because plenty at this price still use alloy. Copper transfers heat better, resists corrosion in polluted humid air, and — the part that matters when something goes wrong — can be brazed and repaired by any technician rather than replaced whole. Turbo mode is the everyday feature: a window unit sits in the window it's cooling, so it works fast on a room that's been shut all afternoon. And the 50°C rating means the machine is built to keep cooling when the outdoor air is at its worst — which for a window AC is the same air right outside the glass, so it matters. Dry mode is the underused one: in a Delhi August humidity is what makes a room uncomfortable, not temperature.
ISEER 3.21 and 1206 units — the honest comparison
We'd rather give you the real numbers than let you find them later. ISEER 3.21 and around 1206 units a year is efficient for a window AC, but it is not comparable with a split — a 3-star split in the same tonnage typically sits well above this, because a split's compressor and condenser are outside the room and the design has fewer constraints. What that means practically: if this AC will run eight hours a day for four months, the electricity difference against a split is real and you should ask us to work it through. If it's cooling a room for part of the day, or fitting a window in a rented flat where a split isn't allowed, or replacing an existing window unit in an opening that's already there, the lower purchase and installation cost usually wins. Use the energy saver mode either way.
🎯 Right for
Measure the window opening before ordering. A window AC needs a correctly sized opening with proper support underneath — tell us the opening's width and height and we'll confirm the fit rather than discovering it on delivery day.
⚙️ Modes
Energy saver mode is worth using as the default on a 3-star fixed-speed machine — it's the single setting that most affects what this costs to run.
Fast pull-down on a room that's been shut all afternoon. The commonest way a window AC gets used, and it's built for it.
Removes humidity without over-cooling. In monsoon this is what makes a room comfortable rather than cold and clammy.
Spreads the air rather than throwing it at one spot — which lets you sit at a higher set temperature and still feel cool.
Lower global warming potential than older R22, and more efficient to run.
| Brand / Model | Carrier CAW18ER3R36F0 · Estrella Gx (E) · 2026 series ✅ |
| Type | Window AC · fixed speed (non-inverter) ✅ |
| Capacity | 1.5 Ton · 4800 W cooling ✅ |
| Energy Rating | 3 Star · ISEER 3.21 W/W ✅ |
| Annual Consumption | Approx. 1206 units ✅ |
| Condenser Coil | 100% copper ✅ |
| Refrigerant | R32 ✅ |
| Operating Modes | Turbo · dry · sleep · energy saver ✅ |
| Airflow | 2-way auto swing ✅ |
| High Ambient | Rated to cool up to 50°C ✅ |
| Suitable Room Size | Approx. 100–150 sq ft ✅ |
| Warranty | 1 Year on product + 5 Years on compressor ✅ |
Why buy from Mahajan Electronics?
- 📐 We check your window opening before you order
- 100% genuine Carrier 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.
Carrier Estrella Gx (E) · CAW18ER3R36F0 · 2026 Series · 1.5 Ton · 3 Star Fixed-Speed Window AC · 4800 W · ISEER 3.21 · 100% Copper · Turbo · 2-Way Swing · Dry · Sleep · Rated To 50°C · R32 · 1-Year + 5-Year Compressor
Warranty as per Carrier India's terms and conditions — 1 year on the product and 5 years on the compressor, subject to T&C; the scope of cover, gas charging terms, labour, parts, exclusions, installation requirements, product registration and the service process are subject to brand policy and the final invoice or warranty card. Cooling performance, pull-down time, room comfort, noise, airflow and electricity consumption vary with room size, ceiling height, floor level, sun exposure, insulation, window sealing, occupancy, heat load, door opening frequency, outdoor ambient temperature and humidity, set temperature, selected mode, filter condition, installation quality, sealing around the unit, voltage and maintenance; the ISEER figure, approximate annual consumption of 1206 units, 4800 W cooling capacity and room-size recommendation are manufacturer specifications certified or estimated under standard test conditions and are not a guarantee of actual consumption or performance in any particular room. The 50°C figure denotes the maximum outdoor temperature at which the unit is rated to continue cooling and does not indicate rated output at that temperature. This is a fixed-speed, non-inverter window air conditioner; efficiency figures for window units are not directly comparable with split air conditioners of the same star rating, and running costs for heavy daily use will be higher than an equivalent inverter split model. BEE star ratings are as certified at the time of manufacture and are subject to periodic revision. The unit requires a correctly sized window opening with adequate structural support, a slight outward slope for condensate drainage, unobstructed airflow at the rear, and a properly earthed power point; modification of the opening, support frames, grille or shutter removal, carpentry, masonry, sealing, electrical work and any civil work are chargeable separately unless expressly included on the final invoice, and the customer is responsible for confirming the opening dimensions and electrical provision before ordering. Enclosing or obstructing the outdoor-facing half of the unit will reduce cooling and may shorten service life. Image for reference only; actual serial number, manufacturing date, BEE label, unit design, remote or control layout, filter type, accessories and packaging may vary by batch — confirm the model code and specifications against the unit's rating plate at the time of purchase.
Please Note: The image shown is for reference purposes only. Actual product details, including the serial number and manufacturing date, may vary.
