The Belimo NR230A is an on/off rotary actuator used to motorize ball valves in HVAC water systems (coil isolation, changeover circuits, branch shutoff). It supports standard open/close and 3-point (floating) control panel wiring for straightforward integration with BMS/DDC outputs and interlocks.

Designed for direct mounting to compatible Belimo ball valves, it provides stable valve positioning and repeatable operation for day-to-day plant sequences in AHUs, FCUs, and hydronic distribution.

Applications

• 2-way / 3-way ball valve automation in chilled / hot water circuits
• On/Off isolation for AHU coils and FCU coils
• Zone shutoff valves for tenant areas and branches
• Pump/valve interlock sequences (open valve → enable pump)
• Simple control panels using 3-point outputs for directional drive