GENERALGENERAL AIRSTAGE, formerly Fujitsu General. Since January 1, 2026, the manufacturer Fujitsu General has been called GENERAL Inc. The units on this page are the ones sold under the Fujitsu AIRSTAGE name: same factory, same model numbers, same AHRI certification. The specification sheets, manuals and warranty statements cited below were published under the Fujitsu name. Compare with the Fujitsu AIRSTAGE page
AirGreenGENERALAIRSTAGE
GENERAL AIRSTAGE · SUSPENDUES AU PLAFOND · R-32GENERAL floor-ceiling units at AirGreenAuthorized dealer at the highest level of the AIRSTAGE Elite program.
Elite Plus
AirGreen × GENERAL AIRSTAGECeiling-suspended235 mm thickHigh Ceiling Mode4-way louversDown to -21 °CUp to $3,048 in LogisVertElite Plus dealer
01 · What the suspended unit does

At the ceiling, with no ceiling work.

Six facts from GENERAL submittal sheets and pages. Sources are at the bottom of the page.

Ceiling

The current R-32 model mounts on the ceiling only; floor mounting belonged to the former universal units, now retired.

235 mm

235 mm thick, 1,080 to 1,700 mm long depending on size.

High ceiling

High Ceiling Mode compensates for warm air collecting up high.

Gravity

Optional drain pump: gravity drainage is possible.

-21 °C

The previous generation heated down to -10 °C; the R-32 Centauri heats down to -21 °C.

Stained glass

GENERAL suggested the universal unit for hallways and beneath stained glass in houses of worship.

02 · Ceiling or floor

Today, on the ceiling.

Choose where you want the unit. The current R-32 units fix to the ceiling only; floor mounting belonged to the R-410A universal units, now retired.

Where do you want the unit?
ItemWhat it does
ABUH18KUAS · 18,000 BTU/hCeiling only. R-32, heats down to -21 °C.
ABUH24KUAS · 24,000 BTU/hCeiling only. R-32, heats down to -21 °C.
ABUH30KUAS · 30,000 BTU/hCeiling only. R-32, heats down to -21 °C.
ABUH36KUAS · 36,000 BTU/hCeiling only. R-32, heats down to -21 °C.
ABU18RULX · 18,000 BTU/hFloor, low wall or ceiling. R-410A, retired by GENERAL.
ABU24RULX · 24,000 BTU/hFloor, low wall or ceiling. R-410A, retired by GENERAL.
ABU36RSLX · 36,000 BTU/hLarge ceiling unit. R-410A, retired by GENERAL.
Floor consoleFor a unit on the floor or under a window today, see our R-32 consoles.
03 · The units

Four R-32 units, then the former R-410A ones.

Tap a model: photo, sheet, efficiency and LogisVert amount.

ModelHeats down toMax at -15 °CSEER2HSPF2LogisVertAHRI
Centauri ceiling-suspended 18,000 BTU/h-21 °C17,100 BTU/h23.411.2$1,728215434548
Centauri ceiling-suspended 24,000 BTU/h-21 °C23,600 BTU/h21.710.8$2,136215434549
Centauri ceiling-suspended 30,000 BTU/h-21 °C28,000 BTU/h20.810.5$2,544215434550
Centauri ceiling-suspended 36,000 BTU/h-21 °C31,000 BTU/h21.310.4$3,048215434551
RULX universal unit 18,000 BTU/h (retired)-10 °C–––$0–
RULX universal unit 24,000 BTU/h (retired)-10 °C–––$0–
RSLX large ceiling unit 36,000 BTU/h (retired)-10 °C–––$0–
04 · Your ceiling

Can the ceiling be opened?

That is the question that settles cassette versus suspended unit.

Cassette or suspended unit?

The ceiling can be opened

Our adviceThe cassette
What you seeA grille flush with the ceiling
It takes245 to 288 mm of space above the ceiling
DrainBuilt-in pump

See the cassette page: compact 4-way or circular 360°.

The ceiling cannot be opened

Our adviceThe suspended unit
What you seeA 235 mm body under the ceiling
It takes1.08 to 1.70 m of free length
DrainBy gravity, or an optional pump

Concrete, exposed beams, cathedral ceiling: the suspended unit needs no space above.

05 · Between two beams

Measure the free length.

Slide to your ceiling’s free length, between two beams for example: the tool compares it with each size’s length.

Free length on the ceiling
R-32 18,0001,080 mm
R-32 24,000 and 30,0001,390 mm
R-32 36,0001,700 mm

Body length only, according to the manufacturer; it is 705 mm deep and 235 mm thick. Some clearance is also needed around it: we measure on site.

06 · Which indoor unit

Same outdoor unit, different efficiency.

On the same Centauri outdoor unit, the suspended unit beats the ducted unit on SEER2 and trails the circular cassette. The LogisVert amount stays the same.

Same outdoor unit, different indoor unit

AOUH18KUAS1

Circular cassetteSEER2 26.3
Floor-ceilingSEER2 23.4
Compact cassetteSEER2 21.9
DuctedSEER2 18.6
LogisVert, whatever the indoor unit$1,728

ENERGY STAR list. LogisVert is computed from the capacity rated at -8 °C, the same here for every indoor unit: 14,400 BTU/h.

AOUH24KUAS1

Circular cassetteSEER2 23.2
Floor-ceilingSEER2 21.7
DuctedSEER2 18.5
LogisVert, whatever the indoor unit$2,136

ENERGY STAR list. LogisVert is computed from the capacity rated at -8 °C, the same here for every indoor unit: 17,800 BTU/h.

AOUH30KUAS1

Circular cassetteSEER2 22.4
Floor-ceilingSEER2 20.8
DuctedSEER2 18.5
LogisVert, whatever the indoor unit$2,544

ENERGY STAR list. LogisVert is computed from the capacity rated at -8 °C, the same here for every indoor unit: 21,200 BTU/h.

AOUH36KUAS1

Circular cassetteSEER2 21.3
Floor-ceilingSEER2 21.3
DuctedSEER2 18
LogisVert, whatever the indoor unit$3,048

ENERGY STAR list. LogisVert is computed from the capacity rated at -8 °C, the same here for every indoor unit: 25,400 BTU/h.

07 · In cold weather

Down to -21 °C with the Centauri units.

Bars: maximum capacity published by GENERAL and capacity at -15 °C (ENERGY STAR). Red tick: the rated values, including the -8 °C one LogisVert uses.

Heat by outdoor temperatureTap a temperature
Size8.3 °C-8.3 °C-15 °C
Centauri ceiling-suspended 18,00025,600 BTU/h19,300 BTU/h17,100 BTU/h
Centauri ceiling-suspended 24,00032,000 BTU/h26,000 BTU/h23,600 BTU/h
Centauri ceiling-suspended 30,00038,000 BTU/h30,900 BTU/h28,000 BTU/h
Centauri ceiling-suspended 36,00043,000 BTU/h34,500 BTU/h31,000 BTU/h

At -8 °C the rated value is a part-load test. Values with the suspended unit, per GENERAL and ENERGY STAR.

08 · More heat in deep cold

The XLTH outdoor unit, at 30,000 and 36,000.

GENERAL also pairs the 30,000 and 36,000 with an XLTH outdoor unit that heats down to -26 °C.

Standard outdoor unit versus XLTH

ABUH30KUAS vs ABUH30KUAS · XLTH

ABUH30KUASABUH30KUAS · XLTH
At +8 °C (rated)32,000 BTU/h32,000 BTU/h
At -8 °C (rated)21,200 BTU/h21,000 BTU/h
At -15 °C28,000 BTU/h33,000 BTU/h
Heats down to-21 °C-26 °C
SEER220.820.5
HSPF210.510.5
Indicative LogisVert$2,544$2,520

Same suspended unit, different outdoor unit. The XLTH gives more heat at -15 °C and heats down to -26 °C. Its LogisVert amount is a little lower: it is computed from the value rated at -8 °C.

ABUH36KUAS vs ABUH36KUAS · XLTH

ABUH36KUASABUH36KUAS · XLTH
At +8 °C (rated)38,000 BTU/h38,000 BTU/h
At -8 °C (rated)25,400 BTU/h25,200 BTU/h
At -15 °C31,000 BTU/h40,000 BTU/h
Heats down to-21 °C-26 °C
SEER221.320.8
HSPF210.410.5
Indicative LogisVert$3,048$3,024

Same suspended unit, different outdoor unit. The XLTH gives more heat at -15 °C and heats down to -26 °C. Its LogisVert amount is a little lower: it is computed from the value rated at -8 °C.

ENERGY STAR and GENERAL data. These XLTH pairings are not in our online shop: ask about them at the estimate.

09 · Two generations

From -10 °C to -21 °C.

The former universal unit and the current R-32 unit, at equal size.

Then and now, 18,000 BTU/h

ABU18RULX vs ABUH18KUAS

ABU18RULXABUH18KUAS
Heats down to-10 °C-21 °C
RefrigerantR-410AR-32
Global warming potential (GWP)2,088675
Cooling efficiencySEER 16 (old test)SEER2 23.4
Heating efficiencyHSPF 8.5 (old test)HSPF2 11.2
Indicative LogisVert$0$1,728

The old SEER and SEER2 are not measured with the same test: they are shown side by side, with no common bar. The old unit is not on the ENERGY STAR list: $0 in LogisVert.

10 · What you hear

A suspended unit, on the scale of everyday sounds.

Levels published by GENERAL for the indoor and the outdoor unit.

ModelIndoor, quiet speedIndoor, high speedOutdoor unit
Centauri ceiling-suspended 18,00031 dB(A)38 dB(A)55 dB(A)
Centauri ceiling-suspended 24,00029 dB(A)41 dB(A)54 dB(A)
Centauri ceiling-suspended 30,00032 dB(A)45 dB(A)55 dB(A)
Centauri ceiling-suspended 36,00032 dB(A)44 dB(A)56 dB(A)

Levels published by GENERAL, measured in a lab; at home, the room, the furniture and the distance change what you hear. Scale: Government of Québec reference points.

11 · The line set

Up to 50 m depending on size.

Drag the sliders: length and height between the two units, per GENERAL’s limits.

Place the outdoor unitDrag the sliders
ModelMax lengthMax heightPre-chargeMinimum
Centauri ceiling-suspended 18,00030 m15 m–5 m
Centauri ceiling-suspended 24,00050 m–––
Centauri ceiling-suspended 30,00050 m30 m20 m5 m
Centauri ceiling-suspended 36,00050 m30 m20 m5 m
12 · Hydro-Québec LogisVert

From $1,728 to $3,048 in R-32.

All four R-32 units are ENERGY STAR cold climate. The former RULX and RSLX are not on the list: $0.

ModelIndicative amountCalculation
Centauri ceiling-suspended 18,000$1,72814,400 BTU/h ÷ 1,000 × $120 = $1,728
Centauri ceiling-suspended 24,000$2,13617,800 BTU/h ÷ 1,000 × $120 = $2,136
Centauri ceiling-suspended 30,000$2,54421,200 BTU/h ÷ 1,000 × $120 = $2,544
Centauri ceiling-suspended 36,000$3,04825,400 BTU/h ÷ 1,000 × $120 = $3,048
RULX universal unit 18,000$0–
RULX universal unit 24,000$0–
RSLX large ceiling unit 36,000$0–
ENERGY STAR required

Since November 26, 2025, only ENERGY STAR certified heat pumps qualify.

12,000 BTU/h minimum

The outdoor unit must be at least 12,000 BTU/h nominal in cooling.

Cap: 100% of the cost

The grant never exceeds the purchase and installation cost, before taxes.

9 months to apply

You apply no later than nine months after installation.

Apply for LogisVert no later than
July 8, 2027
All about LogisVert
13 · The former units

Universal and large ceiling, retired.

GENERAL suggested the universal unit for hallways and beneath stained glass in houses of worship. It is retired from its catalogue.

SystemSizeMountingHeats down toLogisVertAt GENERAL
ABU18RULX + AOU18RLX18,000Floor, low wall or ceiling-10 °C$0Retired by GENERAL
ABU24RULX + AOU24RLX24,000Floor, low wall or ceiling-10 °C$0Retired by GENERAL
ABU36RSLX + AOU36RLX36,000Ceiling (large unit)-10 °C$0Retired by GENERAL

GENERAL pages and the ENERGY STAR list. These R-410A units are not on the ENERGY STAR list; availability is confirmed at quote time.

14 · Controls

A controller to choose.

ModelRole
UTY-LBTUHIR receiver kit with wireless remote
UTY-RVRUKAGAMI touch-panel wired controller
UTY-RNRUZ5touch-panel wired remote
UTY-RHRY / UTY-RSRYsimple wired remotes
FJ-IR-WIFI-1NA, BM101WA/BM102WAIntesis or Cielo IR Wi-Fi (needs the UTY-LBTUH)
UTY-RNBYUOptional wired remote of the retired RULX and RSLX

GENERAL lists the controls as options: one is chosen at quote time, the UTY-LBTUH kit or a wall controller. The exact Wi-Fi adapter is also confirmed at quote time.

15 · Built in

What GENERAL puts in its R-32 suspended units.

Unit fixed under the ceiling, without opening the ceiling.

4-way automatic louvers.

High Ceiling Mode: compensates for warm air collecting near the ceiling.

Fresh-air intake provided by GENERAL.

Optional drain pump; otherwise, gravity drainage.

Optional Wi-Fi with the GENERAL adapter.

Control to choose: UTY-LBTUH receiver and remote kit or a wall controller.

BACnet and Modbus compatible with a gateway.

Inputs and outputs to link third-party devices.

R-32 refrigerant: global warming potential of 675.

16 · The spec sheet

The R-32 units, line by line.

Centauri ceiling-suspended 18,000Centauri ceiling-suspended 24,000Centauri ceiling-suspended 30,000Centauri ceiling-suspended 36,000
Indoor unitABUH18KUASABUH24KUASABUH30KUASABUH36KUAS
Outdoor unitAOUH18KUAS1AOUH24KUAS1AOUH30KUAS1AOUH36KUAS1
AHRI number215434548215434549215434550215434551
Heats down to-21 °C-21 °C-21 °C-21 °C
Rated heating21,600 BTU/h27,000 BTU/h32,000 BTU/h38,000 BTU/h
Rated cooling18,000 BTU/h24,000 BTU/h30,000 BTU/h36,000 BTU/h
SEER223.421.720.821.3
EER212.912.81211.2
HSPF211.210.810.510.4
Indoor sound (min / max)31 / 38 dB(A)29 / 41 dB(A)32 / 45 dB(A)32 / 44 dB(A)
Outdoor sound55 dB(A)54 dB(A)55 dB(A)56 dB(A)
Indoor, w×h×d1,080×235×705 mm1,390×235×705 mm1,390×235×705 mm1,700×235×705 mm
Outdoor, w×h×d799×632×290 mm940×788×320 mm940×998×320 mm940×998×320 mm
Weight in / out24 / 38 kg31 / 52 kg31 / 62 kg38 / 62 kg
Max line set / height30 / 15 m50 / – m50 / 30 m50 / 30 m
Breaker–20 A25 A25 A
Refrigerant charge1.2 kg1.5 kg2 kg2 kg
ENERGY STARENERGY STAR cold climateENERGY STAR cold climateENERGY STAR cold climateENERGY STAR cold climate
Indicative LogisVert$1,728$2,136$2,544$3,048
17 · Did you know

What GENERAL’s sheets tell.

Mounted low on a wall, GENERAL’s former universal unit left enough room to vacuum underneath.

Source: GENERAL

GENERAL recommended the universal unit for houses of worship, beneath stained glass windows.

Source: GENERAL

The 36,000 BTU model is 1.70 m long and hides four fans.

Source: GENERAL

High Ceiling Mode accounts for warm air rising near the ceiling.

Source: GENERAL

The previous generation heated down to -10 °C. The R-32 Centauri heats down to -21 °C.

Source: GENERAL

Every R-32 size has the same thickness: 235 mm.

Source: GENERAL
18 · The GENERAL warranty

Up to 12 years on parts and compressor.

The longest tier needs online registration within 60 days and an AIRSTAGE Elite contractor. At AirGreen, both are done for you.

12 yearsparts and compressor, on eligible models
Basic warranty5 years parts, 7 years compressor
7 yrs
Registered onlineWithin 60 days
10 yrs
Elite contractor + registeredThe AirGreen tier
12 yrs

In Québec, the basic warranty needs no registration; the 10- and 12-year tiers do. Source: manufacturer's limited warranty statement (R-32).

Online registration, 60 days

We register your unit with GENERAL, free, on time.

AIRSTAGE Elite contractor

The condition for the 12-year tier. AirGreen is Elite Plus.

Licensed installer

The warranty requires a licensed contractor. RBQ 5645-9605-01.

Bought online: not covered.

GENERAL’s text excludes systems bought from an online retailer.

AirGreen × GENERAL AIRSTAGE

GENERAL’s unit, AirGreen’s installation.

A suspended unit weighs 24 to 38 kg and is fixed to the ceiling. AirGreen checks the structure, the drain slope and the line route, and registers the warranty.

GENERALAIRSTAGE

What GENERAL AIRSTAGE brings

  • No ceiling openingThe unit fixes underneath.
  • High Ceiling ModeFor tall rooms.
  • Down to -21 °CWith the Centauri outdoor units.
  • Up to 12 yearsParts and compressor, on GENERAL’s conditions.
AirGreen

What AirGreen brings

  • Elite Plus dealerThe highest level of the AIRSTAGE Elite program.
  • Free home estimateWe measure and check the insulation and the location.
  • Warranty registered for youWith GENERAL, within 60 days.
  • RBQ 5645-9605-01Subclasses 15.8, 15.10 and 16.

The result: a large room heated from the ceiling.

19 · GENERAL AIRSTAGE dealer – ELITE PLUS

Elite Plus: the highest level of the AIRSTAGE Elite program.

GENERAL’s Japanese engineering, installed by an Elite Plus team across Montreal, Laval, Longueuil, the North Shore, the South Shore and Montérégie.

Elite Plus partnership

The highest level of the AIRSTAGE Elite program.

Advanced manufacturer's training

Our technicians take the manufacturer’s training on AIRSTAGE systems.

Careful commissioning

Vacuum, refrigerant settings, electrical hookup, set up for winter.

Genuine parts and GENERAL support

Manufacturer parts and GENERAL technical support, wherever we install.

1Home estimate

Free. We measure and check the insulation and the location.

2Clear quote

The model, the size and the indicative LogisVert amount, in writing.

3Installation and commissioning

Vacuum, refrigerant, electrical, winter settings.

4Warranty registered

We register the unit with GENERAL and help you with LogisVert.

20 · Frequently asked questions

What people ask us about floor-ceiling units.

No. GENERAL describes it as a ceiling-suspended indoor unit. For floor or under-window mounting, see our floor consoles.

21 · See also

Related collections.

AirGreen × GENERAL AIRSTAGEFree home estimateWarranty registered for youElite Plus dealerMontreal · Laval · Longueuil · South Shore · North Shore

Sources checked on October 8, 2026

23 sources · show
  1. GENERAL AIRSTAGE, airstagehvac.com/r32/kuas1b
  2. GENERAL AIRSTAGE, airstagehvac.com/products/split
  3. GENERAL AIRSTAGE, airstagehvac.com/multi/r32-indoor
  4. GENERAL, submittal sheet 18KUAS1B
  5. GENERAL, submittal sheet 24KUAS1B
  6. GENERAL, submittal sheet 30KUAS1B
  7. GENERAL, submittal sheet 36KUAS1B
  8. GENERAL, submittal sheet 24KUAS1U
  9. GENERAL, submittal sheet 30KUAS1U
  10. GENERAL, submittal sheet 36KUAS1U
  11. GENERAL, submittal sheet 12KUAS1R
  12. GENERAL, product or archive page FLOORCEIL
  13. GENERAL, product or archive page ABU18RULX
  14. GENERAL, product or archive page ABU24RULX
  15. GENERAL, product or archive page ABU36RSLX
  16. GENERAL AIRSTAGE, document pdf-fcus-h-series-warranty-r32-202606
  17. ENERGY STAR, certified air-source heat pump list (dataset w7cv-9xjt)
  18. ENERGY STAR, program criteria
  19. NEEP, cold-climate heat pump list
  20. Hydro-Québec, LogisVert residential participation guide, version 1.10
  21. Hydro-Québec, LogisVert partner notice (ENERGY STAR required)
  22. Government of Québec, mesure du bruit
  23. airgreen.ca product sheets, read October 8, 2026

Amounts shown are estimates; only Hydro-Québec confirms the grant. Manufacturer data is quoted “according to the manufacturer”.

Price on quote. Every installation is different: we give you a free, detailed quote before any commitment.
The GENERAL AIRSTAGE shop · Floor-ceiling

The units, right below.

Each product sheet gives the AHRI number, the rated capacity and the indicative LogisVert amount. A controller is chosen at quote time.

GENERALAIRSTAGE