Description
Tropical Design to 52–54°C. Whisper-quiet at 37 dB.
ISEER 4.30 · Octa Sensor · 100% Inner-Grooved Copper · 10-Year Compressor Warranty.
1.5 Ton inverter rotary compressor for rooms up to 150 sq ft · 5100 W maximum cooling · Xpandable+ · Ice Clean (FrostWash) self-cleaning coil · 4-Way Swing with 450 CFM Long Air Throw · Anti-Bacterial SuperFine Mesh Filter · hydrophilic coated fins · stabilizer-free operation · LCD backlit remote
Every Delhi summer has that fortnight in late May when the mercury crosses 47°C and half the ACs in the colony start gasping. A great many split ACs are rated to operate at 43–46°C ambient — which is exactly the temperature a west-facing wall or a top-floor terrace slab sails past on a June afternoon. The Toushi Plus carries Hitachi's Tropical Design rating, engineered to keep cooling efficiently in ambient conditions up to 52–54°C. That is not a sticker on the box: the compressor, refrigerant circuit and electronics are validated for sustained high-ambient running rather than adapted from a temperate-market design. Paired with 5100 W of maximum cooling output for a fast pull-down, the room gets properly cold in exactly the week that separates a good AC from an expensive fan.
Octa, Hexa and Penta Sensor — cooling that reads the whole room, not one spot
Most air conditioners take a single temperature reading near the indoor unit and cool to that number. The problem is obvious the moment you live with one: the corner by the window stays warm, the bed under the vent turns freezing, and the compressor hunts up and down all night. Hitachi layers three sensing systems on this machine instead. Octa Sensor monitors eight directional temperature points so cooling is distributed evenly across the room rather than concentrated in front of the unit. Hexa and Penta Sensor track further parameters including humidity and operating load, which is what lets the unit behave sensibly through a sticky August evening as opposed to a dry May one. The result is a room that is the same temperature wherever you sit, held there with fewer swings. My Mode saves your preferred settings for one-touch recall, and Good Sleep Mode walks the temperature gently up through the night so you neither wake up cold at 3 AM nor reach for the remote at 5.
100% inner-grooved copper, SuperSlit fins and stabilizer-free running — built for Delhi's grid and Delhi's air
Inner-grooved copper tubes carry ridges along the inside wall that increase the surface area the refrigerant touches, so heat moves out of the room faster than a smooth-bore tube manages. SuperSlit Fins use finer fin spacing to pull more heat exchange out of the same coil without choking the airflow. Both are protected by an anti-corrosive coating, which is the specification that actually matters over here — the combination of industrial pollution, monsoon humidity and winter dust is what quietly eats an uncoated coil, and it is why one AC is still cooling hard in its eighth summer while another has faded by its fourth. On the electrical side the unit runs stabilizer-free, riding out the voltage swings that arrive with peak grid demand every summer afternoon, and Xpandable+ holds cooling capacity steady while it does — no extra box on the wall, no extra point of failure.
❄️ Hitachi's signature cooling technologies
Ice Clean (FrostWash)
Self-cleaning technology keeps the indoor coil hygienic with no manual work
Xpandable+
Holds cooling capacity through extreme heat and voltage instability
Soft Dry Mode
Pulls humidity and odour out of the room without over-cooling it
Powerful Mode
An instant burst of maximum cooling for the worst of the afternoon
🎛️ How the cold air actually reaches you
4-Way Swing
Four-way plus up/down louvre movement — no missed corners
450 CFM Long Air Throw
Airflow that carries to the far wall of a 150 sq ft room
37 dB Silent Operation
Silent Air Wave blades plus one-touch silent mode on the remote
Good Sleep Mode
Eases the temperature through the night for unbroken sleep
🛠️ Modes and conveniences, engineered in
The Filter Clean Indicator is the quietly valuable one — it tells you when the mesh actually needs washing, which is what keeps both the air quality and the electricity bill where they should be through a Delhi winter of high AQI and a summer of dust.
A finer mesh than a standard filter, catching dust, pollen, allergens and bacteria before they circulate. The hydrophilic coated fins resist the moisture build-up that lets bacteria breed inside the unit. In a city where the AQI decides whether you open a window, the filter is doing real work for eight months of the year.
An inverter rotary compressor varies its speed instead of slamming on and off, so it settles into a low steady draw once the room is cold. An ISEER of 4.30 turns that into real money across a Delhi cooling season that runs from March to October, and ECO Mode caps consumption further on the long-running days.
FrostWash self-cleaning maintains indoor coil hygiene automatically. That matters more than it sounds: a coil that stays clean keeps its heat-exchange efficiency, keeps the airflow strong, and keeps the smell of a damp monsoon week out of the room — without an annual service call to get it back.
Hitachi's Tropical Design construction is built around sustained operation in extreme conditions, and the warranty reflects the confidence: 10 years on the compressor, 5 on the PCB, with onsite service from Hitachi-authorised technicians. That is the part of the purchase you feel in year seven.
| Brand | Hitachi 🇯🇵 ✅ |
| Model | RAS.D318PCD3BS1 — Toushi Plus 3400SXL ✅ |
| Type | Inverter Split AC · Wall Mounted ✅ |
| Capacity | 1.5 Ton ✅ |
| Cooling Area | Up to 150 sq ft ✅ |
| Energy Rating | 3 Star BEE · ISEER 4.30 ✅ |
| Max Cooling Output | 5100 W ✅ |
| Compressor | Inverter Rotary ✅ |
| Ambient Temperature Rating | Up to 52–54°C — Tropical Design ✅ |
| Condenser | 100% Inner-Grooved Copper with SuperSlit Fins ✅ |
| Sensors | Octa Sensor · Hexa Sensor · Penta Sensor ✅ |
| Air Filter | Anti-Bacterial SuperFine Mesh · Hydrophilic Coated Fins ✅ |
| Air Swing | 4-Way Swing + Up/Down ✅ |
| Airflow | Long Air Throw — 450 CFM ✅ |
| Special Technologies | Ice Clean (FrostWash) · Xpandable+ · Soft Dry ✅ |
| Operating Modes | Auto · Cool · Dry · Fan · ECO · Good Sleep · My Mode · Powerful ✅ |
| Indoor Noise Level | As low as 37 dB ✅ |
| Power Protection | Stabilizer-free operation ✅ |
| Remote | LCD Backlit ✅ |
| Warranty | 1 Year Comprehensive · 5 Years PCB · 10 Years Compressor — onsite Hitachi-authorised service ✅ |
Why buy from Mahajan Electronics?
- We match tonnage to your actual room before you buy
- 45+ years of trust in premium home appliances since 1981
- 24-hour delivery across Delhi NCR
- GST invoice — save up to 18% on business purchases
- Mahajan seller invoice, valid for warranty registration and service
- Raja Garden · Jail Road · Dabri Mor
Order today. Delivered in 24 hours.
Hitachi RAS.D318PCD3BS1 Toushi Plus 3400SXL · 1.5 Ton · 3 Star · ISEER 4.30 · 52–54°C Tropical Design · 37 dB · Inner-Grooved Copper · 10-Year Compressor Warranty
Image for reference only.
