This instruction manual is for a wireless network extender device, model WRT-350N. This product is a 300M wireless network extender that supports 54M/150M/300M wireless speeds. The wireless speed can be automatically adjusted according to the actual usage environment. This product can be used to extend the coverage of the wireless network and make the wired network wireless.
This manual covers safety precautions, installation requirements, and step‑by‑step installation methods for the JSQ series gas water heater. It includes wiring diagrams, component layout, and instructions for adjusting firepower and water‑flow settings.
The document also explains the meaning of fault codes, maintenance tips, and after‑sales service information, helping users troubleshoot issues such as ignition failure, fan problems, and temperature sensor errors. This manual is written in Chinese.
| Input voltage | 220 V |
|---|---|
| Auxiliary voltage options | 110 V / 12 V / 24 V |
Press the firepower key; for FFSA/FFSRA models the LED bar length increases with higher firepower, while FFSB/FFSRB models use lamp indicators for small, medium, and large fire settings.
Hold the power/on‑off key for about 3 seconds to change the display from temperature to water‑flow (liters per minute); it returns to temperature display after roughly 20 seconds.