514-316-2973
sales@airgreen.ca
Hitachi calls it the airHome Mini Cassette: a 570 mm body recessed in the ceiling, a 620 mm panel, air in four directions. Five sizes in our store. The largest has two quirks: the brochure rates it at 20,500 BTU/h, and Hitachi’s combination tables pair it with the RAM-G36N4HAA only; none exists for the RAM-G42N5HAA. Here is what Hitachi publishes on this head, and what it leaves out.
airHome MultiCombination tables 3.5 to 3.7 of Hitachi’s technical guide. RAM-G42N5HAA: no table published.
Each product page carries Hitachi’s documentation. For the “24,000”, your quotation names the RAM-G36N4HAA and its AHRI number.
Sold as 24,000 BTU/h: Hitachi’s brochure gives 20,500 BTU/h; its technical guide gives 24,000 BTU/h cooling and 20,500 BTU/h heating. Tap a document to see what it prints for the RAI-GJ24QHAA.
The guide’s combination tables name no RAI-GJ24QHAA: the largest mini-cassette there is called RAI-GJ22QHAA, size “22”, with a cooling range of 4,100 to 25,600 BTU/h. The guide also prints heating figures for the 18,000 and the 24,000 that match those of two RAD-GJ ducted heads character for character. So we compare sizes on 20,500 BTU/h, the brochure figure and the lowest Hitachi prints for this head, until Hitachi publishes a correction. For the gas line, the RAM-G36N4HAA has three 3/8 in. ports and one 1/2 in. port: both readings connect to it.
Pick a mini-cassette size. The cards follow Hitachi’s combination tables, with the certificate and LogisVert amount that apply to the system.
This size is not in this unit’s Hitachi table.
This size is not in this unit’s Hitachi table.
In Hitachi’s table: takes this size.
Hitachi publishes no combination table for this model: we confirm each combination with the distributor.
Combination tables 3.5 to 3.7 of Hitachi’s technical guide; NEEP and ENERGY STAR certificates re-checked Oct. 28, 2026; LogisVert: list read Oct. 14, 2026, amounts recomputed Oct. 28, 2026 from the certificates. Our product pages give the mini-cassette the “all non-ducted” certificate, like wall heads and consoles; Hitachi itself does not classify the cassette in its documents. The heat comes from the outdoor unit: it heats down to -20°C according to Hitachi, as explained on the multi-zone page. With the “24,000” (size “22” in the tables), the RAM-G36N4HAA takes four heads in only four combinations: it plus 7 + 7 + 7, 7 + 7 + 9, 7 + 7 + 12 or 7 + 9 + 9 (table 3.7). Full LogisVert rules (eligibility, deadlines, documents): our LogisVert page.
Same 570 mm body and same 620 mm panel for all five. What changes: capacity, then airflow and sound, in steps. The 7,000 to 12,000 sizes share the same figures; so do the 18,000 and the “24,000”.
Technical guide: 24,000 BTU/h cooling. Sold as the “24,000”.
See the productBoth drawings follow the dimensions in Hitachi’s brochure and technical guide. Hitachi does not publish the cut-out or the clearances: we measure them at your home.
“Compact dimensions (22 x 22 in) for standard ceiling panels”
The body fits above a dropped ceiling if it finds more than 285 mm of free space there. We measure that space and the line route during the visit.
With no dropped ceiling and no 285 mm cavity, the body has nowhere to go: a console or a wall head takes over.
According to Hitachi, 4-way airflow keeps the whole room at an even temperature and suits commercial spaces too.
For each speed, Hitachi publishes the airflow and the sound level. Pick the size group and the mode: the bars follow the brochure.
airHome Multi brochure values, by speed, from HH to SL. The brochure does not print the sound test conditions. Sound power: 56 dB(A) for the 18,000 and the “24,000” per the technical guide; Hitachi does not publish it reliably for the three small sizes.
Motion sensor, filter, condensate, controls: what Hitachi prints, grey areas included.
According to Hitachi, it powers the unit down (Smart Eco) or turns it off (Auto-Off) when no one is in the room. Among the mini-cassette, the ducted head and the console, it is the only one with one.
Hitachi lists it as the pre-filter on all five sizes. It publishes no efficiency percentage and no cleaning interval, so we show none.
Water leaves through a 32 mm (1.26 in.) outlet. According to the technical guide, a pump is included: 850 mm maximum height, 115 mm lift. We confirm it on the delivered unit.
Hitachi announces a built-in leak sensor (“Built-in gas leakage sensor*”). Its brochure describes the RC-AGS1EA0N as a receiver kit with an alarm light and buzzer; we confirm the equipment of the delivered model.
The technical guide lists it as the “Standard” remote for all five sizes. The brochure describes it as an optional receiver kit for the hand-held remote, with a leak alarm light and buzzer.
Wi-Fi goes through the airCloud Go SPX-WFA01 adapter, optional per the brochure. Power comes from the outdoor unit: 208-230 V, 0.25 A for the head.
Hitachi and AirGreen warranties: explained once for the whole brand, on the HITACHI page. Remotes, adaptors and parts: Hitachi parts and accessories
Hitachi’s airHome Multi brochure prints 20,500 BTU/h for the RAI-GJ24QHAA. Its technical guide gives 24,000 BTU/h cooling and 20,500 BTU/h heating. We sell it as the “24,000” and compare sizes on 20,500 BTU/h, the brochure figure.
Not according to Hitachi: the RAM-G24N3HAA combination table holds no 22 or 24,000 BTU/h head. The largest mini-cassette appears only in the RAM-G36N4HAA table, and Hitachi publishes no table for the RAM-G42N5HAA.
The body is 285 mm tall and 570 × 570 mm. Hitachi does not publish the cut-out or the clearances: we measure them during the visit, before proposing the cassette.
According to the technical guide, a pump is included (850 mm maximum height, 115 mm lift); we confirm it on the delivered unit. The water outlet is 32 mm.
According to Hitachi, it powers the unit down (Smart Eco) or turns it off (Auto-Off) when no one is in the room.
No, not on its own. The amount is calculated per system, on the combination’s certificate. With wall heads or consoles, our product pages use the “all non-ducted” certificate. For the “24,000”, Hitachi’s tables keep only the RAM-G36N4HAA: $1,250 with no ducted head. Adding a RAD-GJ ducted head is what changes the certificate.
No, it is optional: airCloud Go SPX-WFA01 adapter, according to the brochure.
The technical guide lists the RC-AGS1EA0N as the “Standard” remote; the brochure presents it as an optional receiver kit with a leak alarm. We confirm what is delivered in your quotation.
According to Hitachi, its 4-way airflow suits commercial spaces too. We assess each space during the visit.
No question matches. Call us at 514 316-2973.
We measure the space above your ceiling, choose the size and the RAM-G with you, and the quotation shows the combination’s AHRI number and the indicative LogisVert amount.
Hydro-Québec never solicits anyone by phone or door to door for LogisVert. If someone calls “on behalf of Hydro-Québec” to sell you a heat pump, hang up.
Monday to Thursday 8 a.m. to 6 p.m. · Friday 8 a.m. to 4 p.m.
×
LogisVert amounts are indicative: the invoice must show the AHRI or ENERGY STAR number, and Hydro-Québec confirms eligibility and the amount when it processes the claim. Price on quotation.