Selection instructions for secondary action (proximity control) actuators

1、 Purpose:

• Used on smoke exhaust valves and smoke fire dampers that require secondary action.

2、 Function:

1. Manually or electrically open the valve to exhaust smoke, and when the temperature rises by 280 ℃, the thermostat will automatically close the valve.
2. Output passive signals for opening and closing.

3、 Technical parameters:

1. Control voltage DC24V, current<0.
2. Conventional configuration includes a 280 ℃ thermostat, a spindle hole of ¢ 12.7, and a shaft height of 110mm.

4、 Attention:

1. Please ensure that the opening (closing) direction of the valve body blades is consistent with the direction of the mechanism during installation. After installation, manual and electric testing can be conducted before leaving the factory. Reverse and open.
2. Due to the built-in reverse two-way torsion spring in the mechanism, please do not empty the mechanism for testing before installing the valve body and thermometer.
3. If a circuit breaker signal is required, please specify when placing an order.