Worldwide ShippingNo Account Needed to Start a Coil BriefSupport in English and Spanish
Worldwide ShippingNo Account Needed to Start a Coil BriefSupport in English and Spanish
Worldwide ShippingNo Account Needed to Start a Coil BriefSupport in English and Spanish
Worldwide ShippingNo Account Needed to Start a Coil BriefSupport in English and Spanish
Worldwide ShippingNo Account Needed to Start a Coil BriefSupport in English and Spanish
Custom Microchannel Coils.
Microchannel coils made to order for commercial replacement and retrofit requests. Start with measurements of the existing coil or submit an existing drawing through the separate drawings pathway in Coil Brief.
A microchannel coil transfers heat between refrigerant and the air passing through its fins. Refrigerant travels through small passages inside flat tubes, while the fins provide additional surface area for heat exchange. In a condenser it releases heat to the air; in an evaporator it absorbs heat from the air.
The tubes connect to headers that distribute and collect refrigerant. This flat-tube, brazed construction differs from the round tubes and separate plate fins used in a conventional coil. The illustration shows one possible arrangement; the coil’s role and connection details depend on the equipment.
//Coil selection
What matters when selecting a microchannel coil?
The right replacement depends on the coil’s role in the system, refrigerant, construction, and installation requirements.
What to consider
Why it matters
Coil duty
Condenser or evaporator role and existing equipment requirements
Refrigerant and circuiting
System refrigerant, internal passages, and header arrangement
Core construction
Aluminum fins, flat multiport tubes, and headers
Materials and environment
Operating exposure and construction-specific protection review
Fit and installation access
Dimensions, mounting tabs, connections, and removal space
Replacing an existing coil? Start with its measurements or drawing.
Airflow, operating conditions, and performance specifications are not required to begin a measurement-based replacement request. Refrigerant and circuit details still need to be confirmed.
Explore the core, connections and mounting points of a microchannel coil.
123456
Inlet and outlet roles are illustrative; the approved drawing confirms the final arrangement.
1
Aluminum fins
Thin, louvered fins sit between the flat tubes. They provide surface area for heat exchange as air passes through the core.
2
Flat multiport tubes
Each flat aluminum tube contains several small internal passages for refrigerant. These passages are inside the tube and are not visible in the front-facing illustration.
3
Aluminum headers
Headers distribute refrigerant into the tubes and collect it as it leaves. The headers, flat tubes and fins form a brazed aluminum core.
4
Inlet connection
Where refrigerant enters the coil. Its position, size and connection type depend on the proposed design.
5
Outlet connection
Where refrigerant leaves the coil. Inlet and outlet roles shown in the diagram are illustrative and are confirmed in the final design.
6
Mounting tabs
Attachment points secure the coil inside the equipment. Their locations and clearances must suit the installation.
Final construction, mounting details and connection arrangements are confirmed through the approved drawing.
Advantages of microchannel construction
The benefits depend on the coil design and operating conditions.
Compact construction
Flat tubes allow a shallow coil profile, which can help where installation space is limited.
Low weight
Aluminum construction can reduce coil weight compared with conventional copper-tube designs.
Lower refrigerant volume
Small internal passages can reduce the refrigerant held inside the coil. The system charge must still follow the equipment manufacturer’s requirements.
Heat transfer and airflow
Tube and fin geometry can be selected to balance heat transfer with resistance to airflow.
Refrigerants for commercial HVAC
Your system’s refrigerant helps determine the coil’s materials, pressure requirements, and design.
R-410A
Used in many existing HVAC systems.
R-32
Used in newer HVAC equipment.
R-454B
Used in newer HVAC equipment.
Examples shown. Refrigerants vary by equipment and application.
Specify your system’s refrigerant in your Coil Brief. Each coil is designed for its stated refrigerant and operating conditions.
Replacement and order details
OEM replacements
Discontinued or unknown model? Start with measurements or a drawing.
Independent aftermarket replacements. Rowform is not affiliated with or endorsed by these brands.
You can submit a replacement request even if the original microchannel coil is discontinued or the equipment model is unknown. Rowform reviews the submitted coil details to determine whether a custom replacement can be supplied.
An equipment brand or model alone does not confirm compatibility. The proposed dimensions, connections, construction, and refrigerant/circuit details must be reviewed for the individual request.
Rowform reviews the coil details before preparing a custom replacement. Overall dimensions are one part of the review; the construction, connections, and refrigerant/circuit details also matter.
Rowform supplies independent aftermarket replacements and is not affiliated with or endorsed by these equipment brands. Brand pages do not confirm microchannel compatibility with every model.
Dimensions and connections
Use the measurement pathway to enter the requested coil dimensions, connection sizes, positions, and orientation. Follow the guidance or contact Rowform if a detail is unclear.
Construction and circuit details
Provide the requested construction and refrigerant/circuit details from the existing coil. A measurement-based replacement request does not require airflow, operating conditions, or performance specifications.
Measurements or an existing drawing
Choose the measurement pathway or the separate drawings pathway. You do not need to provide both measurements and drawings.
Optional supporting information
Equipment brand and model, nameplate photos, connection photos, and supporting drawings are optional in the measurement pathway. You do not need to supply all of them.
For requests based on operating requirements, email [email protected].
Coil protection
Protection options are reviewed for the proposed microchannel construction.
Coil Brief lists No Coating, Nano Coating, and E-Coating, with Help me choose to compare the options. For a microchannel coil, availability and suitability must be confirmed for the proposed construction and operating environment.
Hydrophilic fin treatment is a separate optional add-on in Coil Brief. Its applicability, and any proposed coating or treatment, are confirmed during review and documented in your quote and approved drawing.
Your quote separates manufacturing and transit estimates.
Your quote includes estimated manufacturing and transit times for the reviewed specifications, quantity, and freight service. Transit begins after dispatch and does not include production time.
Estimates are not guaranteed delivery dates. Expedited production and shipping are not currently available.
12-month limited warranty
Coverage begins at documented delivery.
Coverage starts at documented delivery and covers qualifying manufacturing and material defects. Registration is not required.
Environmental corrosion is not automatically covered. The warranty excludes corrosion caused by unsuitable fluids, chemicals, or environmental exposure. Review the full coverage, exclusions, and remedies before ordering.
Review the proposed dimensions, connections, construction, and any agreed coating on the engineering drawing before approving it. Contact Rowform about discrepancies before approval.
Submitting a Coil Brief does not place an order or require payment. Coil Record keeps your project documents and order updates together.
Choose the measurement pathway to provide the requested dimensions, construction, connection, and refrigerant/circuit details, or use the separate drawings pathway to submit an existing drawing. Equipment brand and model, nameplate photos, connection photos, and supporting drawings are optional in the measurement pathway. Airflow, operating conditions, and performance specifications are not required for a measurement-based replacement request. For requests based on operating requirements, email [email protected].
Yes. Choose the drawings or specifications route in Coil Brief and supply the documents that describe the coil you need. Rowform reviews the submitted information for completeness.
Yes. Submit the coil details through the measurement pathway or an existing drawing through the drawings pathway. Supporting photos, equipment identifiers, and drawings are optional in the measurement pathway. Rowform reviews whether a custom replacement can be supplied. A brand or model number alone does not confirm compatibility.
Do not assume the two are interchangeable. Microchannel coils use flat multiport tubes and headers rather than the round-tube construction of a conventional coil. Matching outer dimensions alone does not confirm fit or system compatibility. Contact Rowform to review a proposed change in coil construction before ordering.
Coil Brief lists No Coating, Nano Coating, and E-Coating, with Help me choose to compare them. Availability and suitability for a microchannel coil must be confirmed for the proposed construction and operating environment. Hydrophilic fin treatment is a separate optional add-on whose applicability also needs review. Any proposed coating or treatment is confirmed in your quote and approved drawing.
Rowform’s limited coil warranty lasts 12 months from documented delivery, with no registration required. It covers qualifying manufacturing and material defects, subject to the Terms of Service. Corrosion caused by unsuitable fluids, chemicals, or environmental exposure is excluded. Review the full warranty for coverage, exclusions, and remedies.
Yes. Review and approve the engineering drawing, checking the dimensions, connections, construction, and any agreed coating. Contact Rowform about discrepancies before approving it. Coil Record keeps your project documents and order updates together.
Your quote includes estimated manufacturing and transit times based on the reviewed specifications, quantity, and freight service. Transit starts after dispatch and does not include production time. Estimates are not guaranteed delivery dates. Expedited production and shipping are not currently available.
