UPGR · CU–AL / FIELD INFORMATION

Replacement coil measurement worksheet

Measurement guide, not a manufacturing drawing

Record the actual coil. All example geometry is illustrative, not to scale, and has no product dimensions. Leave unknown values blank. A manufacturer must verify the measurements and approve a drawing before fabrication.

You can fill this sheet on screen or by hand. Entries remain in this browser tab; nothing is submitted. Print or save before closing the tab.

1 / Identify the coil and the observer

Project / locationExisting manufacturer / model / nameplateMeasured by / datePhoto or sketch showing O, airflow and the observer

Front view: stand upstream and look in the airflow direction. X points right, Y points up; air travels away from you (−Z). This is the reference for left/right.

Right-side view: look from +X towards the coil. Screen right follows airflow (−Z). The bottom datum and P height are the same as in the front view.

Solid outline: complete envelope, including projections. Shaded block: finned area. Dashed lines and P: illustrative measurement references, not hidden pipes or a hydraulic circuit.

O = lower-left front envelope datum. Dimensions A/B/C include all projections. Finned dimensions Wf/Hf exclude the casing and headers. Use the same photographed datum for all offsets.

2 / Dimensions and connection datum

Enter actual measurements in mm. Do not measure this illustration. Xp/Yp/Zp refer to one identified connection axis; repeat for each actual connection.

Code	What to measure	Measured, mm
A	Complete width, including projections	A: Complete width, including projections
B	Complete height, including projections	B: Complete height, including projections
C	Complete depth, including projections	C: Complete depth, including projections
Wf	Finned-block width only	Wf: Finned-block width only
Hf	Finned-block height only	Hf: Finned-block height only
Xp	Connection axis from left envelope datum	Xp: Connection axis from left envelope datum
Yp	Connection axis above bottom envelope datum	Yp: Connection axis above bottom envelope datum
Zp	Connection axis behind front datum, along airflow	Zp: Connection axis behind front datum, along airflow

P is a single example axis marker. It does not define the actual number, position, type or diameter of connections. Identify every real connection as P1, P2… on your photo or sketch; add another sheet where needed.

3 / Replacement requirements and access

Connection identity for the offsets above (P1, P2…)Quantity requiredConnection type / actual thread or flange size / projection / medium in or outFrame, flanges, fixing-hole locations and required mounting clearancesMeasuring method / uncertainty / inaccessible dimensionsWhat must remain compatible? Dimensions, connections, performance or controlsWhat may change? Explain constraints and the reason for replacementRemoval route, door/elevator opening, lifting and service clearanceKnown duty: air volume and temperatures; humidity for cooling; medium, concentration, temperatures and pressure limitsUnknowns, damage, site conditions and extra notes

4 / Attach the source evidence

Overall coil and installation photos
Readable nameplate / model identification
Front and side photos with airflow and observer marked
Every connection, fixing point and a measuring reference
Original drawing or selection sheet, if available
Access route, corrosion, damage and any hidden areas

Before manufacture

Reconcile your measurements with the manufacturer's drawing. Confirm materials, pressure/duty, all connections, mounting and access. This worksheet neither sizes a coil nor approves interchangeability, capacity or fabrication.