Heating/Cooling Coil Section for AHU

Product Specifications

Technical details and manufacturing context for Heating/Cooling Coil Section

Definition

The Heating/Cooling Coil Section is a critical component of an Air Handling Unit (AHU) that houses heat exchange coils responsible for adjusting the temperature of air passing through the system. This section typically contains either heating coils (using hot water, steam, or electric elements) or cooling coils (using chilled water or refrigerant) to condition the air to the desired temperature setpoint before distribution to occupied spaces. The section is designed as a modular part, allowing integration into various AHU configurations. Its primary function is to transfer thermal energy between the air stream and the fluid circulating within the coils, thereby heating or cooling the air as required. The coil section is typically constructed with copper tubes and aluminum fins, enclosed in a galvanized steel casing, ensuring durability and efficient heat transfer. The performance of the coil section is characterized by several parameters, including coil face area, rated airflow, cooling and heating capacities, water flow rate, pressure drops, operating pressure and temperature, coil material, fin spacing, number of rows, and weight. These parameters are provided as reference ranges and must be verified for the specific model and application. The coil section operates based on the principle of forced convection, where air is drawn or pushed across the finned surfaces of the coils. For heating, hot water or steam circulates through the tubes, transferring heat to the air. For cooling, chilled water or refrigerant absorbs heat from the air, lowering its temperature. The finned tube design maximizes surface area, enhancing heat transfer efficiency. When selecting a coil section, engineers must consider the required thermal capacity, airflow rate, available space, and system pressure constraints. Verification of model-specific values and standards with the legal manufacturer or supplier is essential to ensure proper integration and performance.

Working Principle

Air flows through the coil section where it comes into contact with the coil surfaces. For heating, hot water or steam circulates through the coils, transferring thermal energy to the air. For cooling, chilled water or refrigerant absorbs heat from the air, lowering its temperature. The coil's finned tube design maximizes surface area for efficient heat transfer between the fluid inside the tubes and the air passing over the fins.

Common Materials

Copper tubes, Aluminum fins, Galvanized steel casing

Technical Parameters

Parameter	Typical range	Notes & selection driver
Coil Face Area	0.5–8.0 m²	Determines air velocity and pressure drop.
Rated Airflow	1000–40000 m³/h	Match to AHU performance.ISO 580
Cooling Capacity	10–500 kW	Based on standard conditions.EN 1397
Heating Capacity	10–600 kW	Hot water or steam.EN 1397
Water Flow Rate	1–50 m³/h	Per coil circuit.
Water Pressure Drop	10–80 kPa	Affects pump selection.
Air Pressure Drop	50–250 Pa	At rated airflow.
Operating Temperature	-20–120 °C	For water and air.
Coil Material	Cu–Al, Cu–Cu, Al–Al	Tube–fin combination.ASTM B280
Fin Spacing	1.5–4.0 mm	Tighter for cooling, wider for dusty.
Number of Rows	2–8	More rows increase capacity and drop.
Weight	50–500 kg	Depends on size and material.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Coil Tubes Part
Contain heating/cooling fluid for heat transfer

Material: Copper
Fins Part
Increase heat transfer surface area between tubes and air

Material: Aluminum
Header Part
Distribute fluid to multiple coil tubes and collect return fluid

Material: Copper or steel
Casing Part
Structural enclosure that directs airflow through coils

Material: Galvanized steel
Drain Pan Part
Collects condensation from cooling coils

Material: Stainless steel or galvanized steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Heating/Cooling Coil Section.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Air Handling Unit (AHU)

View system integration details

Manufacturers of Heating/Cooling Coil Section

Manufacturer profiles associated with Heating/Cooling Coil Section.

Sourcing Heating/Cooling Coil Section from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Frequently Asked Questions

What is the typical range for coil face area?

The coil face area typically ranges from 0.5 to 8.0 m², which determines air velocity and pressure drop. The exact value must be matched to the AHU's airflow and space constraints.

What materials are commonly used in coil construction?

Common materials include copper tubes and aluminum fins, with a galvanized steel casing. The coil material combination can be Cu-Al, Cu-Cu, or Al-Al, as listed in the directory.

How does the number of rows affect performance?

More rows increase the heat transfer capacity but also increase air pressure drop. The directory lists a range of 2 to 8 rows, and the optimal number depends on the required capacity and allowable pressure drop.

What standards are referenced for capacity ratings?

Cooling and heating capacities are referenced to EN 1397, and rated airflow to ISO 580. These standards provide testing methods, but actual performance must be verified with the manufacturer for the specific model.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Buyer enquiry

Request manufacturing insight for Heating/Cooling Coil Section

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes: Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here: We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman: CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim: A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

pressure:	Max 25 psig (1.72 bar) working pressure, 50 psig (3.45 bar) test pressure
flow rate:	100-10,000 CFM (2.83-283 m³/min) air flow range
temperature:	-20°C to 120°C (operating), -40°C to 150°C (design)
face velocity:	300-700 fpm (1.5-3.6 m/s) recommended

Heating/Cooling Coil Section