Custom H‑type all‑in‑one HT‑LT remote dry cooler for Jenbacher J620 gas engine. Independent high‑temperature and low‑temperature coil circuits without internal mixing. H‑shape vertical coil layout minimizes footprint and avoids hot air recirculation. Anti‑corrosion construction for biogas / landfill‑gas CHP power‑plant continuous operation. VRCOOLER provides thermal calculation, flange customization and full technical documentation.