The 4-wire manifold valve actuator is used to open and close circuit valves on the 1 and 1-1/4 in PRO-BALANCE manifolds. Use REHAU thermostats to control actuators directly, or connect through REHAU electronic controls.

Rehau® Pro-Balance Valve Actuator, 24 VAC, 32 - 140 deg F

• Gray position indicator provides visual verification of the actuator's position
• When the actuator is off and closed, the gray indicator is flush with the top of the actuator
• When the actuator is on and open, the gray indicator will rise out of the top of the actuator and be visible from the side
• Red pull-out tab is provided to allow easy installation onto the manifold, after installation remove red tab
• A dry-contact end switch is built-in to the actuator
• This end switch can be used to operate 24 VAC (2 A maximum) relays for pumps and other devices and can be wired so that pumps turn on only when actuator is fully open
• If required, connect the green end switch wires to a suitable 24 VAC powered relay to activate a device to be operated by the actuator's end switch or connect these wires directly into an appropriate zone control module
• 24 VAC "thermal motor" heating element melts a wax cartridge, allowing the actuator to open when there is a call for heat (power on), when the power is off, the wax cools and closes the valve (normally closed), operation takes 3 - 4 min
• 4-wires - blue/brown - apply 24 VAC power, green (2) - end switch, length - 40 in
• Low power draw approximately 2 V-A in operation, maximum 4.5 V-A when first powered, ensures transformer has sufficient power (VA) to operate all actuators

• Catalog https://assets.unilogcorp.com/267/ITEM/DOC/Rehau_260166_Catalog.pdf