R4750B/C Manuals

R4750B/C Burner Controller Specification Sheet

The R4750B/C is a medium‑size gas‑burner safety controller that provides automatic ignition and safety monitoring for burners up to 580 kW/h. The document lists its mechanical dimensions, electrical contacts, power‑sequence timing and optional accessories.

Key data include a power consumption of 7 W (+25 % max), operating temperature range –20 °C to +60 °C, humidity tolerance up to 90 % RH at 40 °C, and a weight of 680 g. Contact ratings for ignition coil, pilot valve and main valve are also provided, along with timing charts for pre‑purge, ignition test and flame response. This manual is written in Chinese.

Covers: 规格书 · 选型表 · 尺寸 · 接点规格 · 电源时间顺序 · 可选附件