Apply to be a TradeMaster!
Filter menu expanded

Filters

13,101 items
Reset

SORT

Product Availability
–

Show In Stock Only (3589)
Reno (50)

Product Type
–

Blower (91)
Blower Assembly (27)
Blower Wheel (58)
Bracket (5)
Burner (5)
Compressor (62)
Contactor (22)
Control Board (31)
Control Module (6)
Drain Pan (36)

Price Range
–

Under $1 (1)
$1 to $5 (35)
$5 to $10 (66)
$10 to $15 (57)
$15 to $20 (50)
$20 to $25 (75)
$25 to $30 (91)
$30 to $35 (89)
$35 to $40 (107)
$40 to $45 (99)

York

York
Help Face
Need a little help?
13101 items
Grid
List
Compare
Product Image of D1EY030A06 Parts - York Central Air Conditionernot-to-sell-product
D1EY030A06 Parts - York Central Air Conditioner
SKU: D1EY030A06
York
SKU: D1EY030A06
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D1EZ030A25 Parts - Packaged Unit/RTUnot-to-sell-product
D1EZ030A25 Parts - Packaged Unit/RTU
SKU: D1EZ030A25
York
SKU: D1EZ030A25
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D1NQ060D09025 Parts - Packaged Unit/RTUnot-to-sell-product
D1NQ060D09025 Parts - Packaged Unit/RTU
SKU: D1NQ060D09025
York
SKU: D1NQ060D09025
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D1NQ060N06506 Parts - Packaged Unit/RTUnot-to-sell-product
D1NQ060N06506 Parts - Packaged Unit/RTU
SKU: D1NQ060N06506
York
SKU: D1NQ060N06506
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D1NQ060N11046NX Parts - Packaged Unit/RTUnot-to-sell-product
D1NQ060N11046NX Parts - Packaged Unit/RTU
SKU: D1NQ060N11046NX
York
SKU: D1NQ060N11046NX
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DAYA-X042N045A Parts - York Central Air Conditionernot-to-sell-product
DAYA-X042N045A Parts - York Central Air Conditioner
SKU: DAYA-X042N045A
York
SKU: DAYA-X042N045A
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DAYA-X042N070B Parts - York Central Air Conditionernot-to-sell-product
DAYA-X042N070B Parts - York Central Air Conditioner
SKU: DAYA-X042N070B
York
SKU: DAYA-X042N070B
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D1GA030N03206A Parts - Packaged Unit/RTUnot-to-sell-product
D1GA030N03206A Parts - Packaged Unit/RTU
SKU: D1GA030N03206A
York
SKU: D1GA030N03206A
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D1GA036N08006B Parts - Packaged Unit/RTUnot-to-sell-product
D1GA036N08006B Parts - Packaged Unit/RTU
SKU: D1GA036N08006B
York
SKU: D1GA036N08006B
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D1GA042N06406B Parts - Packaged Unit/RTUnot-to-sell-product
D1GA042N06406B Parts - Packaged Unit/RTU
SKU: D1GA042N06406B
York
SKU: D1GA042N06406B
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D1GH036N06406B Parts - Packaged Unit/RTUnot-to-sell-product
D1GH036N06406B Parts - Packaged Unit/RTU
SKU: D1GH036N06406B
York
SKU: D1GH036N06406B
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D1HE048A46BD Parts - Packaged Unit/RTUnot-to-sell-product
D1HE048A46BD Parts - Packaged Unit/RTU
SKU: D1HE048A46BD
York
SKU: D1HE048A46BD
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D1HE060A25A Parts - Packaged Unit/RTUnot-to-sell-product
D1HE060A25A Parts - Packaged Unit/RTU
SKU: D1HE060A25A
York
SKU: D1HE060A25A
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DAYH-F024N070 Parts - York Central Air Conditionernot-to-sell-product
DAYH-F024N070 Parts - York Central Air Conditioner
SKU: DAYH-F024N070
York
SKU: DAYH-F024N070
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D3CG090N13025MF Parts - Packaged Unit/RTUnot-to-sell-product
D3CG090N13025MF Parts - Packaged Unit/RTU
SKU: D3CG090N13025MF
York
SKU: D3CG090N13025MF
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DBYA-T036N090 Parts - Packaged Unit/RTUnot-to-sell-product
DBYA-T036N090 Parts - Packaged Unit/RTU
SKU: DBYA-T036N090
York
SKU: DBYA-T036N090
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DBYP-F036N090X Parts - Packaged Unit/RTUnot-to-sell-product
DBYP-F036N090X Parts - Packaged Unit/RTU
SKU: DBYP-F036N090X
York
SKU: DBYP-F036N090X
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DBYP-F048D110X Parts - Packaged Unit/RTUnot-to-sell-product
DBYP-F048D110X Parts - Packaged Unit/RTU
SKU: DBYP-F048D110X
York
SKU: DBYP-F048D110X
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DBYP-F048N110 Parts - Packaged Unit/RTUnot-to-sell-product
DBYP-F048N110 Parts - Packaged Unit/RTU
SKU: DBYP-F048N110
York
SKU: DBYP-F048N110
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DBYP-T042N110X Parts - Packaged Unit/RTUnot-to-sell-product
DBYP-T042N110X Parts - Packaged Unit/RTU
SKU: DBYP-T042N110X
York
SKU: DBYP-T042N110X
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DBYP-W036N070X Parts - Packaged Unit/RTUnot-to-sell-product
DBYP-W036N070X Parts - Packaged Unit/RTU
SKU: DBYP-W036N070X
York
SKU: DBYP-W036N070X
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D3CG102N16546 Parts - Packaged Unit/RTUnot-to-sell-product
D3CG102N16546 Parts - Packaged Unit/RTU
SKU: D3CG102N16546
York
SKU: D3CG102N16546
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D3CG120N16525MK Parts - Packaged Unit/RTUnot-to-sell-product
D3CG120N16525MK Parts - Packaged Unit/RTU
SKU: D3CG120N16525MK
York
SKU: D3CG120N16525MK
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D3CG120N20025MKD Parts - Packaged Unit/RTUnot-to-sell-product
D3CG120N20025MKD Parts - Packaged Unit/RTU
SKU: D3CG120N20025MKD
York
SKU: D3CG120N20025MKD
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D3CG150N16525MTA Parts - Packaged Unit/RTUnot-to-sell-product
D3CG150N16525MTA Parts - Packaged Unit/RTU
SKU: D3CG150N16525MTA
York
SKU: D3CG150N16525MTA
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D3CG150N20025MGB Parts - Packaged Unit/RTUnot-to-sell-product
D3CG150N20025MGB Parts - Packaged Unit/RTU
SKU: D3CG150N20025MGB
York
SKU: D3CG150N20025MGB
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D4CE036E02025MA Parts - York Heat Pumpnot-to-sell-product
D4CE036E02025MA Parts - York Heat Pump
SKU: D4CE036E02025MA
York
SKU: D4CE036E02025MA
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D4CE048A58EC Parts - Packaged Unit/RTUnot-to-sell-product
D4CE048A58EC Parts - Packaged Unit/RTU
SKU: D4CE048A58EC
York
SKU: D4CE048A58EC
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D4CE060A50EC Parts - Packaged Unit/RTUnot-to-sell-product
D4CE060A50EC Parts - Packaged Unit/RTU
SKU: D4CE060A50EC
York
SKU: D4CE060A50EC
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D4CE150A25MB Parts - Packaged Unit/RTUnot-to-sell-product
D4CE150A25MB Parts - Packaged Unit/RTU
SKU: D4CE150A25MB
York
SKU: D4CE150A25MB
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D4CG048N06225B Parts - Packaged Unit/RTUnot-to-sell-product
D4CG048N06225B Parts - Packaged Unit/RTU
SKU: D4CG048N06225B
York
SKU: D4CG048N06225B
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D4CG048N10346A Parts - Packaged Unit/RTUnot-to-sell-product
D4CG048N10346A Parts - Packaged Unit/RTU
SKU: D4CG048N10346A
York
SKU: D4CG048N10346A
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D4CG048N10358A Parts - Packaged Unit/RTUnot-to-sell-product
D4CG048N10358A Parts - Packaged Unit/RTU
SKU: D4CG048N10358A
York
SKU: D4CG048N10358A
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D4CG150N16525MA Parts - Packaged Unit/RTUnot-to-sell-product
D4CG150N16525MA Parts - Packaged Unit/RTU
SKU: D4CG150N16525MA
York
SKU: D4CG150N16525MA
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D4CG150N20025ME Parts - Packaged Unit/RTUnot-to-sell-product
D4CG150N20025ME Parts - Packaged Unit/RTU
SKU: D4CG150N20025ME
York
SKU: D4CG150N20025ME
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D6CG036N07906A Parts - Packaged Unit/RTUnot-to-sell-product
D6CG036N07906A Parts - Packaged Unit/RTU
SKU: D6CG036N07906A
York
SKU: D6CG036N07906A
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D6CG036N07906B Parts - Packaged Unit/RTUnot-to-sell-product
D6CG036N07906B Parts - Packaged Unit/RTU
SKU: D6CG036N07906B
York
SKU: D6CG036N07906B
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D6CG048N06006A Parts - Packaged Unit/RTUnot-to-sell-product
D6CG048N06006A Parts - Packaged Unit/RTU
SKU: D6CG048N06006A
York
SKU: D6CG048N06006A
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D4CG150N20046 Parts - Packaged Unit/RTUnot-to-sell-product
D4CG150N20046 Parts - Packaged Unit/RTU
SKU: D4CG150N20046
York
SKU: D4CG150N20046
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D6CG060N09925MBA Parts - Packaged Unit/RTUnot-to-sell-product
D6CG060N09925MBA Parts - Packaged Unit/RTU
SKU: D6CG060N09925MBA
York
SKU: D6CG060N09925MBA
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of D6CG060N09946C Parts - Packaged Unit/RTUnot-to-sell-product
D6CG060N09946C Parts - Packaged Unit/RTU
SKU: D6CG060N09946C
York
SKU: D6CG060N09946C
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DCUC-F060N125A Parts - Packaged Unit/RTUnot-to-sell-product
DCUC-F060N125A Parts - Packaged Unit/RTU
SKU: DCUC-F060N125A
York
SKU: DCUC-F060N125A
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DCUC-T060N100A Parts - Packaged Unit/RTUnot-to-sell-product
DCUC-T060N100A Parts - Packaged Unit/RTU
SKU: DCUC-T060N100A
York
SKU: DCUC-T060N100A
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DCUC-X036N100B Parts - Packaged Unit/RTUnot-to-sell-product
DCUC-X036N100B Parts - Packaged Unit/RTU
SKU: DCUC-X036N100B
York
SKU: DCUC-X036N100B
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DCYA-W060N110 Parts - Packaged Unit/RTUnot-to-sell-product
DCYA-W060N110 Parts - Packaged Unit/RTU
SKU: DCYA-W060N110
York
SKU: DCYA-W060N110
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DCYA-X060N110 Parts - Packaged Unit/RTUnot-to-sell-product
DCYA-X060N110 Parts - Packaged Unit/RTU
SKU: DCYA-X060N110
York
SKU: DCYA-X060N110
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DDHB-F060AB Parts - Packaged Unit/RTUnot-to-sell-product
DDHB-F060AB Parts - Packaged Unit/RTU
SKU: DDHB-F060AB
York
SKU: DDHB-F060AB
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Compare
Product Image of DDHB-W090A Parts - Packaged Unit/RTUnot-to-sell-product
DDHB-W090A Parts - Packaged Unit/RTU
SKU: DDHB-W090A
York
SKU: DDHB-W090A
Brand: York
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Backorder
Get it by Wed, Nov 18 - Mon, Dec 21
Resources
FAQs, Manuals & Videos
Articles
More About York

York is a manufacturer of residential and commercial HVAC equipment, including central air conditioners, heat pumps, gas furnaces, and air handlers, with a product history dating to 1874. Founded in York, Pennsylvania, York is now part of Johnson Controls and produces equipment across efficiency tiers from DOE-minimum single-stage models to high-efficiency variable-capacity systems. York's residential lineup includes the Affinity Series, LX Series, and entry-level lines covering heat pumps and air conditioners from 14.3 SEER2 through 19 SEER2. Select York products qualify for ENERGY STAR and are eligible for Inflation Reduction Act federal tax credits and rebates.

Product Lines

York Affinity Series Heat Pumps (YZV)

The York YZV Affinity Series is a variable-capacity communicating heat pump rated at 19 SEER2, using a variable-speed inverter compressor that adjusts capacity to match the home's load. The YZV qualifies for ENERGY STAR certification and may be eligible for IRA federal tax credits and utility rebates.

York LX Series Heat Pumps (YH6, YH2F)

York LX Series heat pumps cover the ENERGY STAR efficiency tier with two-stage (YH6, 16 SEER2) and 1-and-2-stage (YH2F, 15.2 SEER2) configurations. Both meet ENERGY STAR and CEE Tier 1 requirements and are eligible for IRA incentives. The YH6 provides reduced sound and tighter temperature control over single-stage models.

York Entry-Level Heat Pumps (YH2E) and Air Conditioners (YC2E, YC2F)

York entry-level models (YH2E heat pump 14.3 SEER2; YC2E air conditioner 14.3 SEER2; YC2F up to 17.5 SEER2) meet 2023 DOE minimum efficiency standards. The YH2E is designed for straightforward residential replacement projects. The YC2F steps up to two-stage capacity for larger tonnage and is ENERGY STAR rated.

York Residential Gas Furnaces

York residential gas furnaces are available in 80% and 90% AFUE configurations. High-efficiency York furnaces with variable-speed blowers and two-stage gas valves provide tighter temperature control and lower fuel use compared to single-stage, constant-speed models. York furnaces match with York split system equipment for AHRI-rated system combinations.

Why Contractors Specify York

HVAC contractors specify York because the product line covers the full range of residential efficiency tiers from DOE-minimum replacements through ENERGY STAR variable-capacity systems eligible for IRA federal tax credits. York LX Series and Affinity Series heat pumps qualify for ENERGY STAR and CEE Tier 1, giving contractors access to incentive-eligible products for customers pursuing IRA rebates. York is part of Johnson Controls. York furnaces and air handlers are designed to match with York split system equipment, simplifying system selection and supporting AHRI-rated matched system efficiency documentation.

How to Choose a York Product

The most important decision variable is the application efficiency target: DOE-minimum replacement, ENERGY STAR replacement, or high-efficiency variable-capacity installation. For DOE-minimum work, the YH2E (14.3 SEER2) and YC2E (14.3 SEER2) cover standard replacement. For ENERGY STAR-qualifying installations, the YH2F (15.2 SEER2) and YH6 (16 SEER2) meet CEE Tier 1 thresholds qualifying for IRA Section 25C credits. For maximum efficiency, the YZV Affinity Series (19 SEER2) uses an inverter compressor for load-matching. For furnace selection, match AFUE tier to energy cost sensitivity and climate.

FAQs

Where is York manufactured and when was York founded?
York was founded in York, Pennsylvania in 1874 and is now part of Johnson Controls. York manufactures residential and commercial HVAC equipment distributed through an authorized contractor and distributor network across North America.

What warranty does York offer on residential heat pumps and air conditioners?
York offers a 10-year parts limited warranty on registered residential products when installed by an authorized York contractor and registered within 90 days. Unregistered equipment typically carries a 5-year parts warranty.

What is the difference between the York YZV Affinity Series and the YH6 LX Series heat pump?
The YZV uses a variable-speed inverter compressor that continuously adjusts capacity, rated at 19 SEER2. The YH6 is a two-stage compressor rated at 16 SEER2, running at low or high capacity only. The YZV provides more precise temperature control at partial loads. The YH6 improves comfort over single-stage models at a lower upfront investment than the YZV.

What York heat pump qualifies for the IRA Section 25C federal tax credit?
York LX Series heat pumps (YH2F at 15.2 SEER2, YH6 at 16 SEER2) and the YZV Affinity Series meet ENERGY STAR and CEE Tier 1 requirements qualifying for IRA Section 25C tax credits. Eligibility depends on current IRS requirements.

Are York split system heat pumps compatible with non-York air handlers?
York split system heat pumps are designed to pair with York air handlers and furnaces for AHRI-rated matched system efficiency. Non-York air handlers can be used in some configurations, but AHRI-rated efficiency verification may not be available for the combination. Communicating York systems like the YZV require a compatible York communicating air handler or furnace.

How does SEER2 differ from SEER?
SEER2 is the 2023 DOE replacement for SEER, using a new M1 test methodology that results in ratings approximately 5 percent lower than equivalent SEER ratings. York equipment is rated in SEER2 under current DOE standards. The lower SEER2 number reflects the updated test standard, not a reduction in actual performance. York's current lineup runs from 14.3 SEER2 to 19 SEER2.