How loud is a York central air conditioner?
70 to 77 dBA of sound power, depending on model and size. Each guide says units "shall be sound tested according to ANSI/AHRI Standard 270" without naming an edition, so all three models sit in one group here.
Read the two digits after the series letters as thousands of Btu an hour. A YC418 is a 1.5 ton unit, a YC424 2 tons, a YC430 2.5, a YC436 3, a YC442 3.5, a YC448 4 and a YC460 5.
| Size code (tons) | YC4, 14.3 SEER2, single stage | YC6, 16+ SEER2, stage 2 (full output) | YC6, stage 1 (low) | YC3, 13.4 SEER2, single stage |
|---|
| 18 (1.5) | 70 | 71 | No stage 1 row | 73 |
| 24 (2); YC4 also 25 | 71 | 72 | 71 | 74 |
| 30 (2.5) | 71 | Not made | Not made | 73 |
| 36 (3) | 72 | 72 | 71 | 74 |
| 42 (3.5) | 73 | Not made | Not made | 76 |
| 48 (4) | 75 | 74 | 73 | 76 |
| 60 (5) | 75 | 75 | 75 | 77 |
The YC4 and YC3 run at one speed, so the fair comparison is with the YC6's stage 2 column. Its stage 1 column describes the lower gear that a two stage unit spends most of its run time in.
The cheaper YC4 leads at most sizes
70 dBA at 1.5 tons and 71 at 2 make the YC4 the quietest York air conditioner in most sizes. At 4 tons the two stage YC6 takes over with 74, against 75 for the YC4 and 76 for the YC3.
Anyone expecting the dearer model to win will find the order odd. York files the YC4 in its "$" tier and the YC6 in "$$", yet at 2 tons the YC4's single rating sits a decibel below the YC6 at full output and level with its low stage, and at 3 tons it matches the YC6's full output 72.
The YC3 never leads.
It rates 1 to 3 dBA above the YC4 everywhere, and its 77 at 5 tons is the highest air conditioner figure York prints. York's numbers sit beside other brands' in our central air conditioner ranking.
Three sound claims that disagree with York's tables
The claims were written as round ceilings and floors; the tables underneath move. In three places they do not agree.
| Model | What the page or header says | What the guide table shows |
|---|
| YC3 | Product page: "76 dBA or lower" | The 5 ton YC360E2S11 rates "77"; sell sheet and guide both say "77 dBA or lower" |
| YC6 | Product page: "As low as 73 dBA" | Stage 1 and stage 2 rows include 71 at three sizes |
| YC4 | Sound table headed "stage 2" cooling data | Physical data lists a "1-stage" compressor in every size |
Every guide also states a shared design target, "Units shall be designed to 77 dBA or less to minimize sound pollution". Wherever a page and a guide differ, the guide wins here.
How loud are York heat pumps?
69 to 77 dBA of sound power for the two stage R-454B YH4, YH5 and YH6. Each guide prints four tables, stage 1 and stage 2 for both cooling and heating, tested to ANSI/AHRI Standard 270 with no edition named.
Stage 2 cooling, the full output column, reads like this by size:
| Size code (tons) | YH4, 14.3 SEER2 | YH5, 15.2 SEER2 | YH6, 16 SEER2 |
|---|
| 18 (1.5) | 70 | 70 | 70 |
| 24 (2) | 72 | 70 | 71 |
| 30 (2.5) | 73 | Not made | 72 |
| 36 (3) | 73 | 72 | 70 |
| 48 (4) | 74 | 74 | 74 |
| 60 (5) | 75 | 74 | 71 |
Stage 2 heating spans 69 to 76 for the YH4 and 69 to 75 for the YH5 and YH6. At most YH4 and YH6 sizes it reads above cooling, but at three YH5 sizes it reads below. The 1.5 ton rows match in all three guides octave band for octave band, which points to one shared 1.5 ton unit across the three lines.
Which York heat pump is the quietest?
That depends on size. At 2 tons the YH5 leads with 70 dBA in cooling and stage 2 heating. At 3 tons the YH6 leads with 70 in cooling and ties the YH5's 70 in heating, and at 5 tons its 71 in full output cooling undercuts the other two by 3 to 4.
At 4 tons all three rate 74 in full output cooling, which leaves price to decide.
On stage 1, the YH5's 3 ton rates 69 in both cooling and heating, the lowest stage 1 figures in York's heat pump tables. One YH6 row runs backwards, the 2 ton at "77" on stage 1 heating and "73" on stage 2, and the guide offers no note on it. The quietest heat pumps guide puts these tables beside other brands.
The variable speed models use a different sheet
The inverter heat pumps, YD5, YDV and YDC, print sound power in product specifications of another format, with decimals and no sound test standard named. That alone keeps them out of the AHRI 270 ranking.
Their numbers also contradict themselves. In the YDV sheet the sound table lists 53.4 dBA at low cooling for 3 tons while the spec table gives that size a minimum of 59.3, and the YDC's 3 ton rows, 40.5 at minimum cooling and 57.2 at maximum, sit far below any other York table even though its page says "as low as 60 dBA". The YH9, York's variable speed communicating model, has no sound table at all: its page promises "76 dBA or lower", and the document filed as its guide is a data sheet without a sound row.
The technical guides list a field installed "dense foam cover that provides 2 dBA sound level reduction", part number S1-01007xxx000 in the YC guides and S1-010-07xxx-000 in the YH guides.
No rating above includes it. Beyond that, the feature lists say only that "Compatible accessories for further sound reduction are also available", and the same 2 dBA is given for every size rather than a figure measured per model. Applied to a 5 ton YC3, it would bring 77 down to about 75, level with an unblanketed YC4 or YC6.
Are York, Luxaire and Coleman the same?
They share paperwork, and some model names differ by a single letter. York's installation manual for the YC3, YC4 and YC6 also covers "XC4, RC4", "XC3, RC3" and "XC6 and RC6", and Luxaire's site sells the XC3, XC4 and XC6 with York's card claims repeated word for word: "As low as 73 dBA" for the XC6, "76 dBA or lower" for the XC3 and XC4. The YD5 and YDV spec sheets are shared too, titled "YD5 and XD5 Series" and "YDV and XDV Series".
Luxaire's and Coleman's technical guides were not part of this review, and Coleman's site turned requests away, so only York model numbers are rated here.
The York guides themselves carry two company names: Johnson Controls Ducted Systems on the older ones, BHC Group Heating & Cooling on those from September 2025 on.
R-410A leftovers on York's listings
Several cards still describe R-410A units, the YXV variable capacity air conditioner among them, whose 2019 guide rates 53 to 74 dBA. York's transition page says R-410A split systems are "prohibited to manufacture as of January 1, 2025, and must be installed by January 1, 2026", which is why only R-454B models are ranked.
On November 6, 2026 the air conditioner listing also carried the YCE, YCS, YXT, YFK, YC2D, YC2E and YC2F, each with nothing but an "As low as" floor on its card. None belongs to the R-454B YC3, YC4 and YC6 range, and the YXT's guide names R-410A, so they stay unranked. The heat pump listing is the same story, with the YZV, YZT, YHM, YHE and YH2E cards showing floors from 54 to 72 dBA, and the side discharge HMCG2, HH8 and HMH7 all at "as low as 54". A floor cannot be ranked, so no guides were sought for these.
