Description
Cools In June. Heats In January.
Expandable Intelligence · Penta Sensor · 100% Copper.
Hot & Cold inverter split AC · 1.8 Ton · 4 Star energy rating · Expandable Cooling for extreme conditions · Penta Sensor intelligence · 100% copper with superfine mesh filter · R32 refrigerant · tropical design built for Indian conditions
Delhi is not a one-season city. It is 45°C in June and 4°C in January, and most homes solve that with an AC on the wall for half the year and a blower on the floor for the other half. This Hitachi does both from the same unit: full inverter cooling through the summer, and heating through the cold Delhi winter — no second appliance to buy, no extension cord across the bedroom floor, no dry burnt-dust smell from a coil heater. One installation on the wall, one remote, and a room that is comfortable in the loo winds of May and the January fog alike. For a rented flat or a compact home where floor space is genuinely scarce, that is the whole argument.
Expandable Intelligence — capacity that stretches when the weather demands it
Delhi does not hand you an average day, it hands you extremes. Hitachi's Expandable technology lets this unit expand its cooling for extreme conditions instead of running at one fixed output — so the afternoon the mercury spikes and the west wall starts radiating heat back into the room, the AC has somewhere to go. On the ordinary days it does not need that headroom, the inverter compressor simply modulates its power down to what the room actually requires, which is easier on the compressor and easier on the meter. Paired with the Hot & Cold function, the same intelligence works in reverse through winter, holding the room warm on the coldest mornings of the year.
100% copper, superfine mesh filter, tropical design
The condenser is 100% copper — copper transfers heat faster, resists Delhi NCR's humidity-and-pollution mix far better than aluminium, and stays cheaper and simpler to service years later, which is what decides whether an AC is still working strongly in its eighth summer. In front of it sits a superfine mesh filter that catches the fine dust this city's air carries indoors all year, keeping the coil clean and the air that reaches you cleaner. And the whole unit is built to a tropical design specification for Indian conditions — engineered from the start for the heat, the dust and the humidity it will actually face here, not adapted from a cooler market.
🌡️ One unit, both seasons
Cooling
Full inverter cooling through the long Delhi summer
Heating
Warms the room through the January cold — no separate blower
Expandable
Expands cooling capacity when conditions turn extreme
Penta Sensor
Reads room conditions and adjusts the unit to suit them
🛠️ Built in, everywhere it counts
Tropical design is the quietly important one in Delhi — the unit is specified for Indian heat and dust from the outset, which is exactly the load it will carry every summer it runs.
Cooling in summer and heating in winter from a single wall unit, with an inverter compressor adjusting its power to what the room needs instead of switching hard on and off — steadier temperature, quieter running, and one appliance doing the work of two.
The capacity expands for extreme conditions, so the worst fortnight of a Delhi summer — the week the top floor never cools down after dark — is exactly when the unit has extra to give rather than running flat out at its limit.
A five-sensor system reads what is actually happening in the room and lets the AC respond to it, so comfort is held automatically instead of you reaching for the remote every time the sun moves or the room fills up.
R32 carries heat more efficiently than older refrigerants with a far lower environmental impact, and a 4 Star BEE rating means the efficiency shows up on the bill across Delhi's very long cooling season.
| Brand / Model | Hitachi RMRG422HFXO ✅ |
| Type | Hot & Cold Inverter Split AC · Wall Mounted ✅ |
| Capacity | 1.8 Ton ✅ |
| Energy Rating | 4 Star ✅ |
| Compressor | Inverter ✅ |
| Function | Cooling + Heating ✅ |
| Adaptive Cooling | Expandable Technology — for extreme conditions ✅ |
| Sensing | Penta Sensor Intelligence ✅ |
| Condenser | 100% Copper ✅ |
| Air Filter | Superfine Mesh ✅ |
| Refrigerant | R32 ✅ |
| Design | Tropical design for Indian conditions ✅ |
| Colour | White ✅ |
| Installation | Installation support included ✅ |
| Warranty | 1 Year Comprehensive · 10 Years Compressor · 5 Years PCB / Controller ✅ |
Why buy from Mahajan Electronics?
- We match tonnage to your actual room before you buy
- 45+ years of trust in premium home appliances
- 24-hour delivery across Delhi NCR
- GST invoice — save up to 18% on business purchases
- Authorised Hitachi retail partner with full manufacturer warranty
- Raja Garden · Jail Road · Dabri Mor
Order today. Delivered in 24 hours.
Hitachi RMRG422HFXO · 1.8 Ton · 4 Star · Hot & Cold Inverter Split AC · Expandable · Penta Sensor · 100% Copper · 10-Year Compressor Warranty
Image for reference only. Sold with Mahajan Electronics GST seller invoice.
