The NA9353E controller user manual provides installation notes, functions, alarm codes, parameter settings, and operation instructions.
The NA9353E controller is a refrigeration control unit that manages compressor, defrost, and fan operation, provides remote monitoring via app and web, and includes various protection and alarm functions. It supports peak‑valley power mode, energy statistics, and system maintenance reporting.
The manual covers installation precautions, main functions and technical specifications, detailed operation steps, alarm code explanations, parameter configuration procedures, wiring diagram, and warranty statements. It is intended for professional installers and service personnel. This manual is written in Chinese.
| Temperature display range | -45~125 °C (resolution 0.1 °C) |
|---|---|
| Temperature setting range | -40~115 °C (resolution 0.1 °C) |
| Temperature measurement accuracy | ±1 °C (-30~50 °C), ±2 °C (other ranges) |
| Current display range | 0~200 A |
| Compressor current range | 0~45 A |
| Compressor current accuracy | ±5 % |
| Fan current range | 0~20 A |
| Fan current accuracy | ±5 % |
| Voltage measurement accuracy | ±5 % |
| Operating environment | Altitude <2000 m, temperature -10~60 °C, humidity 20~85 % non‑condensing |
| Output contact capacity | 2 A/250 VAC resistive load |
Alarm code A31 is a high‑temperature alarm that does not stop the system and automatically recovers when the temperature exceeds the configured high‑temperature alarm set point (F13).
Use a four‑core shielded twisted‑pair cable for the panel‑to‑controller communication line, and do not exceed a length of 300 m.