ASCO AH4E112A

Three-Position Electrohydraulic Linear Hydramotor Actuator

AH4E Hydramotors are three-position push-type, self-contained, electrohydraulic linear actuators featuring dual internal control valves for repeatable positioning. The low-fire position is factory set at the stroke midpoint, but can be field adjustable to any position between 15% and 100% of stroke. When power is applied, the actuator shaft travels to the low-fire position. After an external switch completes the low-fire controller circuit, the shaft continues on to the high-fire setting. Opening the external switch returns the shaft to the low-fire setting, and power interruption fully closes the valve in one second or less from any position. The AH4E Hydramotor/V710(B) gas valve combination provides reliable main line gas control for a wide range of applications, including boilers, furnaces, ovens and all types of industrial and commercial burners.

Specifications:

• Power Requirement: 220 VA max.
• Closing Time: One second max.
• Opening Time: Fast Opening: 14 seconds max./ Slow Opening: 26 seconds max.
• Note: Opening time is double between -30°F and -40°F ambient. Opening time increases 20% when operating on 50Hz.