AB Series Water-Source Heat Pump

Deliver elevated comfort and optimized efficiency.

AB Series Water-Source Heat Pump

Performance That Sets a Higher Standard

The YORK® AB Series Large Capacity Water to Air Heat Pump combines high efficiency operation with a robust set of standard features across a wide capacity range. Purpose built for demanding commercial applications, it integrates scroll compressor technology, variable air volume capability, and 100% outside air operation to enable flexible system design, consistent performance, and quiet operation. With low GWP R 454B A2L refrigerant, the AB Series helps support sustainability objectives while aligning with evolving regulatory requirements.

Benefits

Robust Construction

ROBUST CONSTRUCTION

The unit includes a galvanized steel cabinet for strength and corrosion protection, as well as durable scroll compressors.

Quiet Operation

QUIET OPERATION

Scroll compressors, equipment liners, balanced fans and heavy-duty construction make the unit inherently quiet.

Convenient Servicing

CONVENIENT SERVICING

Schrader valves, front access and an easily accessible electrical box make servicing simple.

LOW EMISSIONS

The R-454B refrigerant has a low global warming potential (low-GWP) that meets the AIM Act criteria.

Features

100 VA transformer
Available in 7.5, 10, 15 and 20 HP
Standard range (TXV) capable
Take-apart construction
Optional 100% outside air capability

Belt-driven inverter duty fan motor
Up to 16 different selectable belt drives
Reverse cycle
Optional factory-installed variable frequency drive

Technical Resources

Document Name

Description

Language

Resource Type

AB

39227_YORK_2026WSHPProductCatalog_FINAL_DIGITAL (English)

YORK Commercial WSHP Product Catalog

AB

39227_YORK_AB One Sheet_060526_CF_v1 (English)

YORK AB WSHP Brochure

Brochure

AB Series ESS_06.2026 (English)

AB Series Engineering Submittal Sheet

English Brochure

Brochure

AB Series_IOM_en_03.2026 (English)

AB Series Installation, Operation, and Maintenance Manual

English Brochure

Brochure

York_WSHP_Common_Warranty_04.2026 (English)

Water-Source Heat Pump Commercial Warranty

English Brochure

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