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York Evaporator coil CTU48C5XFS1

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York York AHRI Indoor - CTU uncased upflow/downflow aluminum indoor coil Evaporator coil Repair, maintenance, and replacement planning
York CTU48C5XFS1 product image

Technical Specifications

Product Specs

  • AHRI unit role: Indoor
  • AHRI model/pattern: CTU48C5XFS1
  • AHRI records represented: 127
  • AHRI equipment type: Central HP
  • AHRI tonnage: 2.7333333333333334
  • AHRI refrigerant: R-454B
  • Verified catalog model: CTU48C5XFS1
  • Verified product family: CTU uncased upflow/downflow aluminum indoor coil
  • Verified catalog brand: York
  • Verified model family: CTU
  • AHRI indoor model/pattern: CTU48C5XFS1
  • Nominal capacity: 4 ton
  • Nominal cooling capacity: 48,000 BTU nominal cooling capacity
  • Configuration: Upflow/downflow
  • Coil type: uncased MaxAlloy aluminum indoor coil
  • Metering device: no factory valve; field-selected metering device per matched outdoor unit
  • Refrigerant: R-454B low-GWP compatible family
  • Published model dimension reference: 25Hx19.5Wx21D
  • Cabinet code: C
  • Slab code: F
  • Brand family page: https://www.york.com/residential-equipment/heating-and-cooling/evaporator-coils/ctu_yor_ds/ctu-600-2000-cfm-uncased-upflow-downflow-indoor-coil
  • YorkNow model reference: https://www.yorknow.com/ctu48c5xfs1.html
  • Technical guide: https://www.yorknow.com/pub/media/documentation/ctm_techguide.pdf

Useful troubleshooting details

  • Confirm the installed model and serial number, matched indoor or outdoor equipment, voltage, refrigerant, controls, and AHRI certificate before service or replacement planning.
  • Use the linked AHRI certificates to verify matched-system combinations, rebate conversations, and equipment eligibility before quoting replacement work.
  • Collect photos of the nameplate, equipment access, recent fault history, and comfort symptoms before dispatch or proposal planning.

Certification match

AHRI certificates

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Eligible Central HP <5.4 tons

AHRI 214719748

AHRI 214719748 identifies a Mass Save qualified Central HP <5.4 tons from YORK with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719749

AHRI 214719749 identifies a Mass Save qualified Central HP <5.4 tons from YORK with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719750

AHRI 214719750 identifies a Mass Save qualified Central HP <5.4 tons from YORK with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719751

AHRI 214719751 identifies a Mass Save qualified Central HP <5.4 tons from YORK with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719752

AHRI 214719752 identifies a Mass Save qualified Central HP <5.4 tons from YORK with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719753

AHRI 214719753 identifies a Mass Save qualified Central HP <5.4 tons from YORK with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719754

AHRI 214719754 identifies a Mass Save qualified Central HP <5.4 tons from YORK with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719755

AHRI 214719755 identifies a Mass Save qualified Central HP <5.4 tons from YORK with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719756

AHRI 214719756 identifies a Mass Save qualified Central HP <5.4 tons from YORK with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719757

AHRI 214719757 identifies a Mass Save qualified Central HP <5.4 tons from YORK with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
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Service planning

How GreenFlow handles CTU48C5XFS1 requests

1

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

2

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

3

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

4

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

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Murali S.

HVAC technician was punctual, followed up well, completed quick repairs, ensured the issue was resolved, and provided helpful recommendations.

Jack B.

Andrey always does a great job.

Neal V.

In an industry that often fraught with contractors taking advantage of homeowners, Andrey was honest with his assessment and willing to install a product acquired elsewhere (most want that margin themselves), patiently answered my questions (I’m an engineer so like to understand what’s happening), and proactively offered practical...

Michele Z.

Andrey was professional, prompt, smart, thorough and exceedingly pleasant. We are likely switching our current HVAC company to Green Flow.

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