Rooftop Unit

Carrier Rooftop Unit ® WeatherMaker® - 25 Ton Gas Heat Packaged Rooftop Unit R-454B (460-3)

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Carrier Commercial Rooftop Unit - 48K Rooftop Unit Repair, maintenance, and replacement planning

Technical Specifications

Product Specs

Model: 48K2AJ26-0-6A4B6D0
Manufacturer Number: 48K2AJ26-0-6A4B6D0
Vendor Number: 48K2AJ26-0-6A4B6D0
Catalog Brand: Carrier®
Product Family: 48K
AHRI Usage: Packaged
Air Flow Direction: Vertical
BTU Input: 262,500-525,000
BTU Output: 212,625-425,250
Blower Motor HP: 5
Blower Motor RPM: 1,200
Blower Wheel Diameter: 20
Blower Wheel Width: 15"
Brand: Carrier®
CFM Heating: 4,500-15,000
Color: Gray
Compressor Type: Scroll
Condenser Coil Fins Per Inch (FPI): 15
Condenser Coil Metering Device: EEV - Electronic Expansion Valve
Condenser Fan Blade Diameter: 30
Condenser Fan CFM: 19500
Condenser Fan Motor Qty: 2
Condenser Motor RPM: 1,140
Country Of Origin: MEX
Cycle/Hertz: 60 Hz
Drain Connection Size: 1"
Drive Type: Belt
EER: 9.8
Energy Star Rated: NO
Evaporator Coil Fins Per Inch (FPI): 15
Evaporator Coil Metering Device: EEV - Electronic Expansion Valve
Fuel Type: Natural Gas or LP
Gas Connection Size: 1 1/2"
Gas Connection Type: NPT
Height: 73.125
IEER: 13.2
Ignition Type: Direct Spark (DSI)
Length: 88.375
OPT Code: 1P48K2AJ26-0-6A4B6D0
Outdoor Air Filter Size (OA) In Inches (W X H X D): (4) 16 x 25 x 2; (4) 20 x 25 x 2
Phase: Three
Prop 65: YES
Refrigerant: R-454B
Return Air Filter Size (RA) In Inches (W X H X D): (10) 20 x 24 x 2
Stages Cooling: 3
Stages Heating: 2
Thermal Efficiency: 81%
Tier: WeatherMaker®
Tonnage: 25
Voltage: 460 VAC
Weight: 3199
Width: 165.125

Useful troubleshooting details

Confirm the exact model number, serial number, installed equipment type, and site voltage before service or replacement planning.
Match replacement equipment and accessories against current Carrier compatibility requirements, refrigerant type, capacity, airflow, and local code requirements.

Service planning

How GreenFlow handles Carrier® WeatherMaker® - 25 Ton Gas Heat Packaged Rooftop Unit R-454B (460-3) requests

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.

Describe the service issue

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

Review access and history

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

Plan the next step

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

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Our Happy Customers

Jahangir R.

They were very organized to communicate and be on time to come to look at my air condition to fix it.

Terry S.

Excellent service from best tech!

Anna G.

They quickly identified the issue with the heating system and fixed it efficiently. He explained everything clearly and made sure I understood what was going on. Very professional and reliable, extremely satisfied with the service.

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...

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