SQN7. electric actuators are used for control of dampers and gas or fuel valves on small to medium-sized burners. The SQN7… are ideally suited for OEM manufacturers who integrate the actuators into their products!
This manual describes the SQN7 series electric actuators used for controlling fuel‑air mixture in small‑ to medium‑size burners. It covers the actuator’s functions, connection options (P‑PI, PID, 1‑ or 2‑wire controllers), and mechanical design, including the gear‑driven synchronous motor and clutch‑free gear mechanism.
Safety warnings, assembly and commissioning procedures, certification information, and detailed technical data (voltage, torque, rotation direction, dimensions) are provided. The document also includes wiring diagrams, switch adjustments, and optional feedback potentiometer installation. This manual is written in Chinese.
| Power input | AC 230 V ±10 % / ‑15 % |
|---|---|
| Frequency | 50 – 60 Hz (+6 %) |
| Motor type | Synchronous electric motor |
All assembly, installation and maintenance must be performed by qualified personnel, the unit must be completely isolated from the mains before any wiring, and proper protection against electric shock must be ensured.
SQN70 and SQN74 rotate clockwise, while SQN71 and SQN75 rotate counter‑clockwise.