This manual provides step‑by‑step instructions for installing A.O. Smith EESR‑CA series electric water heaters. It covers site preparation, mounting the unit on a wall or cabinet, connecting water pipes, wiring the power supply, and installing the remote‑control box. Safety warnings, such as the need for a reliable ground and a nearby floor drain, are highlighted throughout.
The guide also explains how to operate the electronic controller, set temperature, timer and AES energy‑saving mode, and perform routine maintenance. Troubleshooting tables list common fault codes and recommended actions, while a parts list at the end identifies the accessories supplied with the heater. This manual is written in Chinese.
| Model | EESR-15CA / EESR-20CA / EESR-25CA |
|---|---|
| Rated Power | 1.5 kW / 2.0 kW / 2.5 kW |
| Water inlet/outlet size | 3/4" |
| Temperature‑pressure safety valve setting | 1 MPa (non‑adjustable) |
The anode rod should be checked and replaced every 2–3 years.
Press the “Reset” button after the protection has tripped; if it does not restore, call the service hotline.
The default temperature is set to 70 °C.