CANAIR · SERIES C22 · R-410ASeries C22 at AirGreen6 C22 wall units, from 9,000 to 24,000 BTU/h, sold and installed by AirGreen in Montreal, Laval, Longueuil, the South Shore and the North Shore.
CanAir · C22 wall unit · R-410A · updated October 8, 2026
CanAir C22 wall unit: cool all summer, heat down to -15°C
The C22 is CanAir’s R-410A wall unit for cooling, backup heat and the shoulder seasons. Six models, from 9,000 to 24,000 BTU/h, two of them 115 V. It heats down to -15°C; colder than that, backup heat takes over.
No amountLogisVert: none of our C22 AHRI numbers on the list as of Oct. 8, 2026
AirGreen × CANAIRSeries C22R-410A9,000 to 24,000 BTU/hHeating down to -15°C115 V or 230 VSold and installed by AirGreenMontreal · Laval · Longueuil · South Shore · North Shore
AirGreen × CANAIRSeries C22R-410A9,000 to 24,000 BTU/hHeating down to -15°C115 V or 230 VSold and installed by AirGreenMontreal · Laval · Longueuil · South Shore · North Shore
SEER2, HSPF2 (region IV), heating ranges, sound levels and line lengths: CanAir brochure. LogisVert: Hydro-Québec’s list of October 8, 2026. AirGreen never changes an AHRI number.
02 · Variable output
The C22 18,000 modulates from 3,900 to 20,000 BTU/h in cooling.
A variable-speed heat pump adjusts its output to what the room needs. As long as the load stays above its minimum, it slows down instead of stopping and restarting. Tap a size to see its range, in cooling and heating, per the CanAir C22 brochure.
Cooling2,650 – 10,300 BTU/h
min. 2,650rated 9,000max. 10,300
Heating2,700 – 10,500 BTU/h
min. 2,700rated 10,000max. 10,500
3.9×between minimum and maximum in cooling
3.9×between minimum and maximum in heating
Cooling2,900 – 10,200 BTU/h
min. 2,900rated 9,000max. 10,200
Heating2,400 – 10,900 BTU/h
min. 2,400rated 10,000max. 10,900
3.5×between minimum and maximum in cooling
4.5×between minimum and maximum in heating
Cooling4,300 – 12,600 BTU/h
min. 4,300rated 12,000max. 12,600
Heating4,000 – 12,500 BTU/h
min. 4,000rated 12,000max. 12,500
2.9×between minimum and maximum in cooling
3.1×between minimum and maximum in heating
Cooling3,800 – 12,850 BTU/h
min. 3,800rated 12,000max. 12,850
Heating2,730 – 12,500 BTU/h
min. 2,730rated 12,000max. 12,500
3.4×between minimum and maximum in cooling
4.6×between minimum and maximum in heating
Cooling3,900 – 20,000 BTU/h
min. 3,900rated 18,000max. 20,000
Heating6,300 – 19,400 BTU/h
min. 6,300rated 18,800max. 19,400
5.1×between minimum and maximum in cooling
3.1×between minimum and maximum in heating
Cooling6,700 – 25,300 BTU/h
min. 6,700rated 24,000max. 25,300
Heating6,900 – 28,100 BTU/h
min. 6,900rated 24,000max. 28,100
3.8×between minimum and maximum in cooling
4.1×between minimum and maximum in heating
014,05028,100 BTU/h
Minimum, rated and maximum capacities: CanAir C22 brochure, p. 7. The rated capacity is the one on the label; the range shows how far the compressor goes down and up.
03 · The cold
-15°C: the C22’s heating limit.
The C22 heats from -15°C to 24°C, per the CanAir brochure. Colder than that, backup heat takes over: baseboards, furnace or another system. To heat all winter with the wall unit, look at the C28 or the 4C28.
-20°C
C22 all sizes · down to -15°C
Backup needed
C28 9,000 to 24,000 for comparison · down to -30°C
Within range
4C28 for comparison · down to -30°C
Within range
04 · 115 V or 230 V
115 V or 230 V: what really changes on a C22.
The C22 comes in 115 V at 9,000 and 12,000 BTU/h. Same series, same size: here are the differences CanAir publishes, side by side.
C22 9,000 BTU/h
115 V
230 V
SEER2
21.5
21.7
EER2
12.5
12.6
HSPF2 (Region IV)
9.0
9.1
Cooling range (BTU/h)
2,650 – 10,300
2,900 – 10,200
Heating range (BTU/h)
2,700 – 10,500
2,400 – 10,900
Indoor sound, low speed
22 dB(A)
24 dB(A)
Outdoor sound
55 dB(A)
54.5 dB(A)
Models
C22SCH09H11 C22SEH09H11
C22SCH09H21 C22SEH09H21
In short: Almost a tie. The 230 V model is slightly more efficient (SEER2 21.7 vs 21.5) and the 115 V model is quieter at low speed (22 vs 24 dB(A)).
CanAir C22 brochure, p. 7. The electrical hookup is checked at the visit: AirGreen holds subclass 16 (electrical) under RBQ licence 5645-9605-01.
05 · LogisVert, Hydro-Québec’s list
No LogisVert amount for the C22.
The 9,000 BTU/h units are below the 12,000 BTU/h minimum. The other sizes are not on Hydro-Québec’s list of October 8, 2026. Here is the detail, size by size.
Size
AHRI
Why no amount
9,000 · 115 V
207683249
Under 12,000 BTU/h: LogisVert requires an outdoor unit of at least 12,000 BTU/h nominal cooling capacity.
From 22 to 46 dB(A) indoors, depending on size and fan speed.
Pick a size, then a fan speed. The needle shows the indoor unit’s sound level published by CanAir; the outdoor unit is shown next to it.
22dB(A) · Low
Outdoor unit55 dB(A)
Outdoor unit54.5 dB(A)
Outdoor unit53.5 dB(A)
Outdoor unit53.5 dB(A)
Outdoor unit57 dB(A)
Outdoor unit60 dB(A)
Rule of thumb: 10 dB(A) more is heard as roughly twice as loud. dB(A) is weighted to follow how the ear hears.
Indoor and outdoor sound levels: CanAir C22 brochure, p. 7. Lowest figure in the series: 22 dB(A) (9,000 · 115 V, low speed).
07 · Line length
Up to 164 ft between the head and the outdoor unit.
Slide the line length and height difference: the tool compares your case with the limits published for each C22. Handy for a condo up high or a head upstairs.
Maximum length and height, 25 ft precharge and 0.16 oz/ft added charge (0.32 oz/ft on the 24,000): CanAir C22 brochure, p. 7. The real length is measured at the visit.
08 · Refrigerant
The C22 uses R-410A. Its R-454B counterpart is the 4C22.
R-410A is the refrigerant of the C22 and C28. The 4C22 follows the same idea with R-454B, whose global warming potential (GWP) is about 4.5 times lower.
R-410AC22 · C282,088
R-454B4C22 · 4C28 · 4CDH466
÷4.5 lower GWP going from R-410A to R-454B
A2L class
R-454B is rated A2L: low toxicity, mildly flammable. The CanAir 4C22 brochure shows it (“A2L R-454B”, p. 5). It is installed following the rules for that class.
What changes for you
In daily use, nothing: the unit heats and cools the same way. The refrigerant matters mostly for the environment and for the technician who services it.
What GWP means
Global warming potential compares a gas with CO₂ over 100 years. A GWP of 466 means one kilo of R-454B equals 466 kilos of CO₂.
Figures from the CanAir brochures and ENERGY STAR. Scroll through.
Did you know · CanAir10,000 BTU/h
More heat than cooling
The C22 9,000 BTU/h heats at a rated 10,000 BTU/h, and the 18,000 at 18,800.
01/07Did you know · CanAir22 dB(A)
The 115 V has an edge
At 9,000 BTU/h, the 115 V version drops to 22 dB(A) at low speed, versus 24 for the 230 V.
02/07Did you know · CanAir164 ft
The longest line in the series
The C22 24,000 accepts 164 ft between the two units and an 82 ft height difference. The 9,000 and 12,000: 100 ft and 60 ft.
03/07Did you know · CanAir25 ft
Precharged
The outdoor unit ships charged for 25 ft of line. Beyond that, 0.16 oz of refrigerant is added per foot (0.32 oz on the 24,000).
04/07Did you know · CanAir50°C
It cools up to 50°C
C22 cooling range: from -15°C to 50°C outside (5 to 122°F), per the brochure.
05/07Did you know · AirGreen2 / 6
ENERGY STAR, not cold climate
The two C22 9,000 BTU/h units are ENERGY STAR certified, without the cold climate mention. The 12,000, 18,000 and 24,000 are not in the ENERGY STAR database.
06/07Did you know · CanAir60 dB(A)
The loudest outdoor unit in the series
The C22 24,000, per the brochure. Both 12,000 units are at 53.5 dB(A).
07/07
12 · Glossary
Eight terms to read a C22 spec sheet.
Tap a card: the definition, then the series figure.
13 · CanAir warranty
Ten years on the compressor and parts.
The warranty comes from CanAir. The installation and the record of your dates are on us. Keep your maintenance proof: CanAir can ask for it.
10 years
on the compressor and parts, and 6 years on labour, for residential systems sold since October 5, 2026
1 yr2 yr3 yr4 yr5 yr6 yr7 yr8 yr9 yr10 yr
Compressor
10 years
Parts
10 years
Labour
6 years
CanAir base warranty 2026-10-05. Coverage starts at installation. Labour: limited warranty, based on the manufacturer’s table of allowed hours, for a residential installation in Quebec.
Extension
CanAir offers an optional 4-year labour extension, for the original buyer only. We cover it in the quote.
Transfer
The base warranty transfers with the house during the initial term only.
Maintenance
Have the recommended maintenance done and keep your invoices and reports: without proof, coverage can be limited.
14 · Our CanAir projects
CanAir wall units installed by AirGreen.
These articles show CanAir wall units; they don’t always name the series.
Down to -15°C, per the CanAir brochure (heating range from -15°C to 24°C). Below -15°C, another heat source is needed.
The 9,000 BTU/h units are below the 12,000 BTU/h minimum. The 12,000, 18,000 and 24,000 are not on Hydro-Québec’s list of October 8, 2026.
Both heat down to -15°C. The C22 uses R-410A and goes up to 24,000 BTU/h; the 4C22 uses R-454B and goes up to 18,000 BTU/h. Its brochure lists optional Wi-Fi; for the C22, we confirm in the quote.
At 9,000, barely: SEER2 21.5 vs 21.7, and it is quieter at low speed. At 12,000, the 230 V does better: SEER2 21.4 vs 20.8.
Yes, in 9,000 and 12,000 BTU/h. The 18,000 and 24,000 are 230 V.
The CanAir brochure lists 22 to 35 dB(A) indoors at the lowest speed, depending on size. The size table gives each model’s figure.
For residential systems sold since October 5, 2026: 10 years on the compressor and parts, and 6 years of limited labour (residential installation in Quebec), per the CanAir base warranty.
100 ft of line on the 9,000 and 12,000, 98 ft on the 18,000 and 164 ft on the 24,000, per the brochure.
The C22 page, checked line by line on October 8, 2026.
What we checked for this page, and where. LogisVert amounts remain indicative: Hydro-Québec confirms them when you apply.
×
6 AHRI numbers checked against the LogisVert listHydro-Québec file of Oct. 8, 2026: 0 with an amount.
6 AHRI numbers searched in ENERGY STAR2 certified, none cold climate (Oct. 8, 2026).
Every technical figureCanAir C22 R-410A brochure (January 31, 2025), p. 7.
The warrantyCanAir base warranty 2026-10-05 and 4-year extended labour warranty.
6 product pagesEvery link on this page leads to the right airgreen.ca page.
AirGreen × CANAIRSeries C22R-410A9,000 to 24,000 BTU/hHeating down to -15°C115 V or 230 VSold and installed by AirGreenMontreal · Laval · Longueuil · South Shore · North Shore
AirGreen × CANAIRSeries C22R-410A9,000 to 24,000 BTU/hHeating down to -15°C115 V or 230 VSold and installed by AirGreenMontreal · Laval · Longueuil · South Shore · North Shore
AirGreen · Air conditioning & heating
Your C22, picked for your room and installed by AirGreen.
We come and see the room, choose the size with you, and give you a clear quote with the AHRI number and the estimated LogisVert amount.
