This guide explains how to safely install the EWH‑A3 wall‑mounted water heater. It covers required mounting clearances, wall load capacity, mounting brackets, and pipe connections. The document also describes the safety mechanisms such as the dual high‑temperature limit, pressure‑relief valve and triple‑pole power cut‑off.
Key product features include three heating modes (low‑power 1250 W, half‑tank 2500 W, full‑tank 2500 W), a memory function that retains settings for 48 hours after power loss, and a corrosion‑resistant inner tank. The guide provides wiring details, water‑pipe connection steps, and a service record card for future maintenance. This manual is written in Chinese.
| Pressure‑relief valve setting | 0.8 MPa (non‑adjustable) |
|---|---|
| Low‑power heating level | 1250 W |
| Half‑tank heating level | 2500 W |
| Full‑tank heating level | 2500 W |
| Width (example model) | 375 mm |
It includes a dual high‑temperature limit switch, a pressure‑relief valve set at 0.8 MPa, and a triple‑pole power‑cut device that instantly disconnects the heater from the supply.
The electronic controller stores all user settings for up to 48 hours when power is lost.
The wall must support four times the water‑filled weight, and the heater should be at least 300 mm from the side edge to allow access to the side cover for maintenance.