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Hitachi 1.5 Ton 3 Star Inverter Split AC RAS.D318PCD2ST1 by Hitachi — official product image of the air conditioner
🧊 Air conditioner

Brand: Hitachi

Hitachi 1.5 Ton 3 Star Inverter Split AC RAS.D318PCD2ST1

The lowest-priced 1.5 ton inverter split here, rated to 54°C

7.9/10

Our editorial score

Good — right for the specific buyer

Budget buyers with a middle-floor room of up to about 180 sq ft

Capacity
1.5 ton
Energy rating
3 star · ISEER 4.3
Type
Split, inverter
Compressor warranty
10 years

About this air conditioner

  • Rated to keep cooling at 54°C outdoors — real headroom for a top floor in a 45°C city
  • 10-year compressor warranty and 5-year PCB warranty
  • Stabiliser-free across stabiliser-free operation (range not stated)
  • Copper condenser, which can be repaired in the field if a joint leaks

How it scores

Cooling performance7.8
Build & coil quality8.4
Value for money8.2
Electricity cost7.3
Installation & service8.0

Our verdict

At ₹37,690 at Reliance Digital, this is the cheapest 1.5 ton-class inverter split on our list, and it keeps the essentials: a 54°C tropical rating, iceClean, inner-grooved copper tubes, stabiliser-free operation and 10 years on the compressor.

Its rated capacity is 4,800 W, about 9% under a true 1.5 ton, and its ISEER of 4.3 is modest. It is a strong AC for a middle-floor room of up to about 180 sq ft, or around 130 sq ft on a sunny top floor. The image is an illustration, because Hitachi does not publish model-coded photos.

What we like

  • Rated to keep cooling at 54°C outdoors — real headroom for a top floor in a 45°C city
  • 10-year compressor warranty and 5-year PCB warranty
  • Stabiliser-free across stabiliser-free operation (range not stated)
  • Copper condenser, which can be repaired in the field if a joint leaks

What we don't

  • 4,800 W rated cooling is 9% below a true 1.5 ton (5,276 W), so size it for a smaller room
  • 3-star efficiency — with long nightly use, a 5-star 1.5 ton unit costs noticeably less to run

When this is not a good choice

Every condition below is derived from this product's published specifications and from how it compares with the air conditioners we track — so you can check each one against your own room, supply or budget rather than take our word for it.

  • You live outside a metro or a major service town

    Hitachi's service network is rated limited rather than excellent. Filter availability and callout times are what decide whether a purifier is still running in five years, and they are worth checking for your pin code before you buy.

    How we score service reach
  • Length of cover matters to you

    Total cover is 12 months, against a median of 60 months across the ac purifiers we track.

Full specifications

Hitachi 1.5 Ton 3 Star Inverter Split AC RAS.D318PCD2ST1 full specifications
TypeSplit AC, inverter compressor
Model codeRAS.D318PCD2ST1
Capacity1.5 ton — 4,800 W rated cooling
Energy rating3 star
ISEER4.3
Annual energy use864 units/year declared (BEE 1,600-hour season) ≈ ₹6,912 at ₹8/unit
RefrigerantR32
CondenserCopper
Rated ambientCools up to 54°C outdoors
Wi-FiNot listed
Filtersanti-bacterial SuperFine mesh filter
Self cleaniceClean (FrostWash)
Stabiliser-free rangestabiliser-free operation (range not stated)
Indoor noise34 dB(A), as published
Indoor unit (H×W×D)294 × 950 × 235 mm
Warranty1 year comprehensive, 10 years on the compressor (1+9) and 5 years on the PCB (1+4), as listed by Hitachi
Price sourceReliance Digital, checked 2026-09-14

Specifications are from manufacturer literature and were checked at the last price-verification date. Brands occasionally revise stage counts, tank sizes and warranty terms without changing the model name — confirm against the current listing before purchasing.

About Hitachi

A premium Japanese engineering brand with a deliberately small Indian range concentrated on large-capacity French door and multi-door units. Hitachi's vacuum-insulated panels give more internal volume per external millimetre than almost anything else, and its Dual Fan Cooling is among the best implementations of separated fridge/freezer airflow. Expensive, narrow, and excellent if the model you want exists.

Service: limitedPrice band: luxuryHQ: Ahmedabad, Gujarat

Read our full Hitachi brand assessment →

Hitachi 1.5 Ton 3 Star Inverter Split AC RAS.D318PCD2ST1 — frequently asked questions

What room size is the Hitachi RAS.D318PCD2ST1 suitable for?
Rated at 4,800 W, it suits a middle-floor room of up to about 180 sq ft with a 10 ft ceiling, or about 130 sq ft on a top floor with strong afternoon sun. Each person beyond two adds load, and a room open to a kitchen needs more. Our AC tonnage calculator works this out for your exact room.
How much electricity does the Hitachi RAS.D318PCD2ST1 use?
Its BEE label declares 864 units a year, measured over a 1,600-hour cooling season — about 5 hours a day for 11 months, or 8 hours a night for 6-7 months. At ₹8 a unit that is roughly ₹6,912 a year, at an ISEER of 4.3. Real use varies with room size, set temperature and how hot your summer is; setting 24-26°C rather than 18°C cuts it substantially.
What warranty does the Hitachi RAS.D318PCD2ST1 come with?
1 year comprehensive, 10 years on the compressor (1+9) and 5 years on the PCB (1+4), as listed by Hitachi. Warranty on an inverter AC matters most for the compressor and the PCB, the two most expensive parts to replace, so check both are listed on your invoice and register the product with Hitachi after installation.
Where can I buy the Hitachi RAS.D318PCD2ST1 at the best price?
We list ₹37,690 from Reliance Digital on 2026-09-14. AC prices move weekly and are often lower on Amazon and Flipkart, especially in bank-offer weeks, so compare all three before buying — and check what installation is included, because extra copper pipe and an outdoor stand are usually charged separately.

Alternatives at a similar price

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