Design manual with plumbing schematics, installation guidelines, and technical specifications for Rinnai tankless water heater systems.
The Rinnai Tankless Water Heater System Design Manual provides detailed plumbing schematics for single‑unit, multiple‑unit, recirculation, and storage‑tank configurations. It includes guidance on certifications, accessory kits (MSB, EZConnect™), model applicability, and clearances for vent terminations.
Additional sections cover water‑quality requirements, pump‑sizing calculations for circulation loops, optional solar‑backup options, and step‑by‑step flush procedures to maintain heat‑exchanger performance. The manual also lists pressure‑loss curves, freeze‑protection options, and recommended materials for pumps and piping.