Trane · Light Commercial Packaged Heat Pump
Trane WSK090A3S000000 — 7.5 ton
7.5 Ton - Standard Efficiency Packaged Heat Pump - R-454B - 208/230/3 WSK090A3S000000
Comparable 7.5-ton systems from other brands
Same size, different brands, cheapest first. An “outdoor unit only” price doesn't include the matched indoor unit — don't compare it 1:1 against a two-piece system. Pick a brand, then open it to compare the price across every retailer that lists it.
| Model | From | Compare |
|---|---|---|
| Daikin DSC0903D000001S | $8,800 | 2 retailers → |
Specifications
| Tonnage | 7.5 ton |
Specs are decoded from the model number and retailer listings. Confirm against the manufacturer submittal sheet before purchase.
Efficiency & refrigerant
This unit uses R-454B, a current low-GWP (A2L) refrigerant that meets the post-2025 EPA AIM Act standard — future-proof for serviceability. A2L refrigerants are mildly flammable, so above a charge threshold the system needs factory leak detection; a certified installer handles this.
Rebates & tax credits
Federal 25C tax credit (now expired for new installs). A qualifying central air conditioner may have qualified for the federal 25C credit (up to $600) if it met the efficiency tier (split: SEER2 ≥ 17.0 and EER2 ≥ 12.0; packaged: SEER2 ≥ 16.0 and EER2 ≥ 11.5) and was installed as an AHRI-matched system. Important: the federal 25C credit applied only to property placed in service on or before December 31, 2025 — under the One Big Beautiful Bill (Pub. L. 119-21), it does not apply to systems installed after that date. If you installed a qualifying system in 2023–2025, you may still be able to claim it on that year's return — and 2025 claims require the manufacturer's qualified-manufacturer (QM) code. Read the federal credit details at ENERGY STAR / IRS →
This is not tax advice. We do not know this exact model's certified efficiency rating, so we cannot say it qualifies for any specific amount. Eligibility depends on the installed system's AHRI-matched rating, your tax liability, and the home being your residence. Always confirm with your installer and a tax advisor.
Official documents
Find the manufacturer's submittal sheet, installation manual, owner's manual, and warranty for the Trane WSK090A3S000000:
Search Trane literature for WSK090A3S000000 →
Documents are hosted by the manufacturer — BuyerBloc links to the official source and never re-hosts copyrighted manuals.
Matched systems (AHRI)
For ducted split systems, the rated efficiency only holds for AHRI-certified matched combinations of outdoor unit, coil, and air handler. Look up certified matches for this model in the official directory:
Find AHRI-certified matches for WSK090A3S000000 →
A retailer "system bundle" is not proof of an AHRI reference number. Verify the match in the AHRI Directory.
Before you buy or install
A packaged unit combines heating and cooling in one outdoor cabinet — size it from a Manual J calculation and confirm the configuration (gas/electric, heat pump, or AC-only) and the duct connection (downflow vs horizontal). It needs a permitted install with a properly built curb or slab and an EPA 608-certified technician for the refrigerant circuit.
Maintenance
Replace the filter every 1–3 months, keep the outdoor cabinet clear, and have a technician check both the heating and cooling sides annually since both live in one unit.
Trane WSK090A3S000000 — questions
How much does the Trane WSK090A3S000000 cost?
The market median is $11,416 (typical $11,416 to $11,416). No single retailer lists this exact model for direct purchase right now — that figure is the aggregated market benchmark, equipment only.
Is that the installed price?
No — this is the equipment (box) price. A full installed light commercial packaged heat pump (matched components, labor, permits) costs significantly more, and that install markup is where quotes vary most.
What refrigerant does the WSK090A3S000000 use?
The Trane WSK090A3S000000 uses R-454B.
Does the Trane WSK090A3S000000 qualify for a federal tax credit?
The federal 25C credit applied only to systems placed in service on or before December 31, 2025, so it does not apply to new installs after that date. State and utility rebates (via DSIRE) may still apply — confirm eligibility with your installer and a tax advisor.
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