Air-X-Changers air cooler selection

Configure Air-X-Changers air coolers for gas compression packages around the thermal duty, process circuits, drive arrangement and available installation space.

EH: combined engine and compressor cooling

A compact unit combines engine and compressor cooling. Sloped sections and forced draft define the arrangement; replacement assemblies should match the equipment drawing.

Fan diameter 24–168 inches
Engine or electric motor drive
Vertical air discharge
Forced-draft arrangement

F: multiple-stage gas cooling

Horizontal coils work with multiple fans and vertical discharge. One cooler combines engine, compressor and multiple-stage gas cooling duties.

Fan diameter 48–144 inches
Forced-draft arrangement
Individual plenum for each fan
Model 2F and 3F layouts are documented

H: skid-mounted horizontal cooler

A horizontal cooler on a skid serves gas compression, lube oil and process cooling duties. Single- and multi-fan arrangements depend on the selected execution.

Fan diameter 24–144 inches
Forced or induced draft
Electric motor or hydraulic drive
Single- and multi-fan configurations

VI: vertical discharge with induced draft

This induced-draft cooler combines engine and compressor duties. Accessible sections support applications requiring frequent section changes; match flow direction and guarding when replacing an assembly.

Fan diameter 36–168 inches
Engine or electric motor drive
Vertical air discharge
Induced-draft arrangement

VV: compact gas, water and lube oil cooler

A compact, portable cooler uses horizontal airflow. Forced- and induced-draft options require separate checks of the fan, guards and installation clearances.

Fan diameter 18–60 inches
Engine or electric motor drive
Horizontal airflow
Forced or induced draft

Z: bolt-together horizontal cooler

The horizontal structure supports subcolumn or skid installation. Its bolt-together design allows optional field assembly; define the drive and maintenance clearances with the package layout.

Fan diameter 48–204 inches
Electric motor or hydraulic drive
Forced or induced draft
Single- and multi-fan configurations

Information for selection

Start with the equipment nameplate, a clear view of the installed cooler and the assembly drawing showing the requested item. EH, F, H, VI, VV and Z identify a family rather than a complete manufacturing specification. Photograph the component marking separately so it remains readable.

State whether the request covers a single part, a replacement section or an assembled cooler.

Where identification is incomplete, provide dimensions with measurement points marked. A hole pattern needs a sketch as well as distances. Explain the maintenance problem and the operating condition you need to restore. This keeps the enquiry connected to the installed machine.

Keep equipment and component identifiers in separate fields; a fan marking alone should not be treated as the identifier of the entire cooler.

Thermal duty and process circuits

For a new cooler, provide composition and flow for each fluid circuit, inlet temperatures and required outlet temperatures. Add operating and design pressures, design ambient temperature, the number of circuits and the available connections.

List startup, normal operation and peak load separately where they differ. A single average condition can hide a requirement that determines the equipment selection.

Compressor power is not the heat rejection duty. The enquiry needs fluid data and clear boundaries for the systems being cooled. State whether engine and lube oil cooling belong in the package. If some inputs are unavailable, identify them explicitly and attach the current process datasheet.

Agree the data used for selection before comparing package arrangements and document any changes to the operating basis.

Replacement sections and connections

Identify a replacement section by its drawing number and bill-of-materials position. Provide nozzle locations, connection details, flow direction and accessible dimensions. Useful photographs show the complete section, headers, mounting points and markings.

Field measurements support identification, while the agreed assembly drawing defines the final interface. State whether existing piping must be retained.

Separate a single-section replacement from a request for several sections or a complete cooler. Record earlier modifications to the installed equipment, including changed connections. The catalogue and the actual assembly may represent different executions.

Keep operating pressure, design pressure and test records distinct in the enquiry. The documents should connect each circuit to its own specification rather than transferring the rating of an adjacent circuit.

Fan and drive arrangement

For a fan enquiry, provide diameter, blade count, hub marking and rotation direction, with the viewing side stated clearly. Include photographs of the mounting and guarding. A model family diameter range does not establish interchangeability of an individual fan.

Drive identification also needs the installed motor, shaft and transmission details relevant to that assembly.

Keep a replacement enquiry separate from a proposed speed change. A different drive condition affects the operating basis and needs technical assessment. Divide the requested scope into fan assembly, fasteners, bearing units and drive components.

State the quantity and reference drawing for each item. If an assembled unit is required, define the assembly boundary and list the accessories expected with it instead of relying on a broad description.

Louvers and cold-weather options

The model sheets describe optional louvers and guards. EH, H and Z also have documented warm air recirculation options. Confirm the installed arrangement against the equipment drawing. For a replacement, photograph the actuator, linkage, mounting points and markings.

Screens need a defined size, frame and installation side. An option listed for a model does not establish its presence on your equipment.

For a new package, specify the minimum ambient temperature and the required control approach. Treat additions to an operating cooler as a change in scope. Separate equipment already fitted from requested additions and identify the responsible party for installation.

Agree how the selected options relate to process outlet temperature control, access and the surrounding package before the component list is finalized.

Installation and maintenance access

Send a site layout showing supports, piping and access areas. Mark airflow obstructions, discharge direction, maximum height and lifting restrictions. Photographs of adjacent equipment help define a replacement project.

Dimensions in the model sheets are estimates and may vary; the agreed equipment drawing should establish the actual installation interface. Do not order against a catalogue outline alone.

For section and drive replacement, identify the removal route and access to fasteners. If the cooler must use an existing skid, provide its dimensions and fixing coordinates. Transport restrictions and building openings can determine assembly boundaries.

Agree which items arrive assembled and which need field installation. Include the data needed by the receiving team so unloading and positioning do not depend on assumptions made after delivery.

Prepare an equipment enquiry

Use a schedule with equipment identifier, drawing number, item position, description, quantity and file reference. Apply the same identifier to photographs and the schedule. If a part is used on several packages, show the quantity for each package.

For a new assembled cooler, attach the technical specification and a list of agreed differences from the existing installation.

Keep uncertain identifiers as separate rows with a note. Do not merge similar-looking components before their interfaces are checked. Submit legible files relevant to the enquiry. After clarification, freeze one schedule revision so a change is not lost between messages and attachments.

The resulting scope can distinguish replacement assemblies, equipment packages and accessories while preserving a direct link to each requested item.

Receiving and technical handover

Before dispatch, agree the packing identification, item scope and document list. On receipt, compare package counts and markings with the agreed schedule. Record packaging damage or identification discrepancies before installation.

A photograph of the new component nameplate connects the received item to the purchasing specification and the maintenance record. Preserve the agreed drawing revision with it.

Installation, adjustment and startup should follow the documentation for the actual equipment and the procedures of the responsible site team. A model overview does not replace an installation instruction or an assessment of a design change.

Keep the final component list and clarification record together. A later enquiry can then start from the installed execution and the actual replacement position rather than repeating identification from general appearance.

Related manufacturers

Air-X-Changers and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Air-X-Changers and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.