Green Flow Solution logo
Schedule Service

Evaporator coil

Back to Johnson Controls products

Johnson Controls Evaporator coil CTU48C5XFS1

Schedule Service Check Availability
Johnson Controls Johnson Controls AHRI Indoor - CTU uncased upflow/downflow aluminum indoor coil Evaporator coil Repair, maintenance, and replacement planning
Johnson Controls CTU48C5XFS1 product image

Technical Specifications

Product Specs

  • AHRI unit role: Indoor
  • AHRI model/pattern: CTU48C5XFS1
  • AHRI records represented: 119
  • AHRI equipment type: Central HP
  • AHRI tonnage: 2.7666666666666666
  • AHRI refrigerant: R-454B
  • Verified catalog model: CTU48C5XFS1
  • Verified product family: CTU uncased upflow/downflow aluminum indoor coil
  • Verified catalog brand: Johnson Controls
  • 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.yorknow.com/ctu48c5xfs1.html
  • 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

View All
Eligible Central HP <5.4 tons

AHRI 214719832

AHRI 214719832 identifies a Mass Save qualified Central HP <5.4 tons from JOHNSON CONTROLS with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719837

AHRI 214719837 identifies a Mass Save qualified Central HP <5.4 tons from JOHNSON CONTROLS with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719842

AHRI 214719842 identifies a Mass Save qualified Central HP <5.4 tons from JOHNSON CONTROLS with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719847

AHRI 214719847 identifies a Mass Save qualified Central HP <5.4 tons from JOHNSON CONTROLS with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719852

AHRI 214719852 identifies a Mass Save qualified Central HP <5.4 tons from JOHNSON CONTROLS with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719857

AHRI 214719857 identifies a Mass Save qualified Central HP <5.4 tons from JOHNSON CONTROLS with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719862

AHRI 214719862 identifies a Mass Save qualified Central HP <5.4 tons from JOHNSON CONTROLS with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719867

AHRI 214719867 identifies a Mass Save qualified Central HP <5.4 tons from JOHNSON CONTROLS with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719872

AHRI 214719872 identifies a Mass Save qualified Central HP <5.4 tons from JOHNSON CONTROLS with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Eligible Central HP <5.4 tons

AHRI 214719877

AHRI 214719877 identifies a Mass Save qualified Central HP <5.4 tons from JOHNSON CONTROLS with outdoor unit HH836E2S11 and indoor unit CTU48C5XFS1+TXV.
Loading more

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.

Additional Services

Brands We Service

Popular cities

Service Areas

Our Happy Customers

Murali S.

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

Sharad W.

Green Flow and the people who work there are terrific. Vlad and Andre are excellent. Andre was very helpful. He was punctual, respectful, efficient and knowledgeable. He did not try to sell me something I didn’t need ( as others have done before). I was charged $99 which...

Melissa S.

The repair person came quickly and was super efficient and polite, and showed me what to do next time. He gave my dog a quick pay and was off again.

Michele Z.

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

View All