Finding correct OEM replacement coils can be challenging, especially when dealing with older commercial equipment, discontinued parts, or long manufacturer lead times.
Whether you’re searching for a Trane, Carrier, York, Daikin, or AAON replacement coil, you may not need to purchase an expensive OEM part or replace the entire HVAC unit.
A custom-manufactured replacement coil can often provide a practical, cost-effective alternative.
1. Equipment Manufacturer and Model Number
Start with the HVAC equipment manufacturer, model number, and serial number.
Common manufacturers include, but are not limited to:
- Trane
- Carrier
- York
- Daikin / McQuay
- AAON
- Lennox
- Modine
- Aerofin
This information is typically found on the equipment nameplate and/or located on the coil’s header. Capital Coil can help identify the original coil specifications.
2. Coil Type
Knowing the type of coil you’re replacing is an important first step.
Common commercial HVAC replacement coils include:
- Chilled Water Coils: Used for cooling in air handling systems.
- Hot Water Coils: Provide heating in commercial HVAC equipment.
- DX Evaporator Coils: Used in refrigerant-based cooling systems.
- Condenser Coils: Typically found in rooftop units and outdoor equipment.
- Steam Coils: Used in commercial and industrial heating applications.
Each coil type has different design and performance requirements.
3. Coil Dimensions
Accurate measurements are essential to ensure the replacement coil fits your existing equipment.
Important dimensions include:
- Overall coil height, length, and depth
- Fin height and fin length
- Number of tube rows
- Fins per inch (FPI)
- Tube diameter
- Casing dimensions
Even small differences can affect installation, so it’s important to confirm measurements rather than estimate.
4. Connection Sizes and Locations
The replacement coil should match the existing system’s piping or refrigerant connections whenever possible.
Helpful details include:
- Connection size and type
- Supply and return locations
- Connection orientation
- Number of connections
Photos showing the connection locations can be especially useful.
5. Photos of the Existing Coil
Try to include:
- Any labels or tags on the coil
- A full view of the existing coil
- Close-ups of the connections
- The coil installed inside the HVAC unit
Photos can help clarify details that may be difficult to describe or measure.
Don’t Have All the Information? No Problem.
It’s common for older commercial HVAC equipment to have missing nameplates, discontinued model numbers, or limited documentation.
In many cases, a custom OEM-compatible replacement coil can be manufactured using measurements, photos, and available operating specifications.
The more information you provide, the easier it is to determine the correct replacement and avoid unnecessary delays.
Ready to Request an OEM Replacement Coil Quote?
Whether you’re looking for a Trane, Carrier, York, Daikin, AAON, or other commercial HVAC replacement coil, gathering a few basic details is a great place to start.
Send us your equipment information, coil dimensions, and photos of the existing coil. Our team can help review your requirements and explore available replacement options.
Call to speak with a coil specialist today.