Electric actuator designed for valves in HVAC systems. Thanks to its compact design, it is suitable for installation in space-constrained areas, such as fan coil units or chilled ceilings. This actuator supports a 24 VAC input signal and offers excellent flexibility for various applications. It is designed for mounting on terminal unit valves from Johnson Controls as well as those from competing manufacturers. With its innovative stroke auto-detection concept, the VA-748x can be installed on most common terminal unit valves and pressure-independent control valves (PICV) with variable stroke available on the market.

One of the main features is the automatic stroke detection of the valve, which allows for mounting on different types of valves, including those with variable stroke. The actuator does not require expert knowledge for cable connection or replacement and has an IP54 protection class.

Technical Specifications

• Control: Floating
• Rated voltage: 24 VAC
• Nominal force: 120 N
• Running time: 13 s/mm
• Protection: IP54

Additional Features

• Automatic stroke detection
• Detachable cable for easy replacement
• Capability to mount on valves with variable stroke
• Low noise <30 dB(A)
• Electric fail-safe
• Operating temperature range: 0...50°C