Engineered replacement coils live or die on performance, not just frame size.
Matching length × width × height but ignoring rows, fin density, circuiting, and tube wall thickness can tank BTU output, spike pressure drop, and trigger costly rework. Modine’s duty-based sizing (with certified selection software) plus Raven’s on-site measurement and consultation delivers the specified thermal performance with fewer surprises in the field.
Who should read this: Mechanical engineers, contractors, and facility managers in healthcare, education, campus, multi-residential, and industrial/commercial plants.
What you’ll learn (5-minute read):
- Why “same-size replacement” ≠ “same performance,” and what actually governs coil duty.
- The variables that matter: rows, fins, circuiting, tube diameter/wall, and flow/ΔT.
- How Modine’s construction & QA reduce risk: copper tubes, aluminum fins, 316L stainless casings, optional coatings, 315 psig submerged pressure test, and recognized certifications (AHRI, UL; optional ASME/CRN).
- A practical measurement/spec checklist to streamline retrofits (access, connections, vents & drains, static limits).
Design highlights to look for in the field/specs:
- Size to duty, not dimensions: select by entering/leaving air & fluid temps, target ΔT, flow rates, and static constraints.
- Materials & options: copper tube / aluminum fin coils; 316L stainless or galvanized/aluminum casings; protective coatings where needed.
- Quality & compliance: every coil pressure-tested to 315 psig; AHRI/UL certified; ASME/CRN available.
- Field practicality: vents & drains standard; red-brass MPT or custom connections (swing, FPT, butt-weld, etc.); expedited 1-, 2-, 5-day options for critical replacements.
Bottom line: For uptime and total cost of ownership, spec engineered coils sized to the load and back them with Raven’s site measurement, direct coordination with Modine engineering, and fast fulfillment.