The Automated Logic ZASF-A is a secondary VAV damper accessory designed for variable air volume (VAV) terminal box applications. It is intended for use with the ZN341A and ZN141A controllers, providing additional damper positioning and airflow sensing capabilities for dual-duct or airflow-tracking systems.
The ZASF-A mounts directly onto the secondary VAV damper shaft and combines an integral actuator with a precision differential pressure sensor. Its separable Belimo brushless DC actuator delivers 45 inch-pounds (5 Nm) of torque and can be mounted up to 300 feet from the controller.
The integrated airflow sensor measures differential pressure across a range of 0–2 inches of water column, supporting airflow measurement and control. The assembly connects to the ZN341A or ZN141A through the Act Net port and receives its power from the connected controller.
Key Features & Benefits
Features:
- Designed for secondary VAV terminal box applications
- Compatible with Automated Logic ZN341A and ZN141A controllers
- Mounts directly onto the secondary VAV damper shaft
- Provides damper positioning and airflow sensing for dual-duct or tracking systems
- Includes a separable Belimo brushless DC actuator
- Delivers 45 inch-pounds (5 Nm) of actuator torque
- Allows actuator mounting up to 300 feet from the controller
- Includes an integral differential pressure sensor with a 0–2 in. H₂O range
- Provides airflow measurement accuracy of ±5% of full flow at 2 in. H₂O
- Receives power from the connected ZN341A or ZN141A controller
- Includes LED status indicators for communications, operation, power, and motor direction
- Includes built-in surge and transient protection
Benefits:
- Adds secondary damper control to compatible VAV systems
- Supports airflow sensing in dual-duct and tracking applications
- Allows flexible actuator placement up to 300 feet from the controller
- Supports airflow measurement across a defined differential pressure range
- Helps maintain occupant comfort through coordinated VAV airflow control
- Simplifies integration with compatible Automated Logic controllers
- Supports easier installation and system monitoring through integrated hardware and status indicators