Schuller 4-wire Manifold Valve Actuator
|Actuator SC-17A-24B Four Wire Normally Closed|
|Switch-on current max||250 mA|
|Operating current||75 mA|
|Operating capacity||3 W|
|Closing and opening times||3 minutes|
|Pulling Load||100 N +/- 5 %|
|Ambient temperature||0°C up to +65 °C|
|Operating range||-58 to 140℉ (-50 to 60 ℃)|
|Weight||100 g with cable|
Components may become damaged during transportation and storage.
- Check all parts.
- Replace damaged actuators.
- Do not attempt to repair.
- Mount the actuator so that it is aligned horizontally or facing up. If you align the actuator facing down, its useful life may be shorter due to contamination
|Wire on Actuator||Uponor Zone Control Module||TACO Zone Valve Controller|
|Blue (24 VAC)||R1||1|
|Brown (24 VAC)||R2||2|
|Black (End Switch)||Y1||3|
|Black (End Switch)||Y2||4|
Connect 24 VAC power from a thermostat or zone control module to the brown and blue wires of the actuator. When 24 VAC power is applied to the actuator, it will take 3-4 minutes for the actuator to fully open. When power is cut, it will take 3-4 minutes for the actuator to fully close. A dry-contact end switch is built in to the actuator. When the actuator fully opens, the end switch will close. If required, connect the two black end switch wires to a suitable 24 VAC-powered relay, to activate a device to be operated by the actuator’s end switch. If the end switch is not needed, it is not necessary to use the black wires, and they may be trimmed.