Siemens ASZ Series

Series Overview

The Siemens ASZ Series consists of mechanical air damper linkage and adjustment components designed for integration with burner actuators in industrial combustion systems.

Unlike electronic control units or servo actuators, the ASZ Series provides the mechanical interface between the actuator output shaft and the air damper mechanism, enabling precise airflow positioning during burner operation.

Role in Combustion Control Architecture

In a typical industrial burner system:

• The burner control unit manages sequencing and safety
• The actuator (e.g., SQN / SQM series) controls rotational movement
• The ASZ Series linkage assembly transfers motion to the air damper

This mechanical transmission ensures accurate air-to-fuel ratio adjustment during ignition, modulation, and shutdown cycles.

Typical Applications

ASZ Series components are widely used in:

• Gas-fired industrial burners
• Oil and dual-fuel burners
• Modulating combustion systems
• Boiler combustion air control assemblies
• Process heating equipment

They are typically paired with Siemens actuator systems in commercial and industrial burner configurations.

Core Functional Characteristics

The ASZ Series provides:

• Adjustable linkage geometry: Allows for precise calibration of damper movement.
• Mechanical positioning accuracy: Ensures repeatable airflow settings.
• Stable torque transmission: Designed to handle industrial actuator loads.
• Flexible mounting compatibility: Adaptable to various burner designs.
• Industrial-grade structural durability: Built for continuous operation in harsh environments.

Why Mechanical Linkage Matters

Precise air control is critical in combustion systems. Improper mechanical alignment may result in:

• Air-fuel ratio imbalance
• Incomplete combustion
• Flame instability
• Reduced thermal efficiency

The ASZ Series ensures that actuator rotation translates accurately into controlled airflow modulation.

Model Differentiation

While all ASZ components serve as mechanical linkage elements, variations may include:

• Mounting configuration
• Shaft diameter compatibility
• Adjustment range
• Arm length and geometry
• Material strength classification

Selection Guide

When selecting an ASZ component, consider:

1. Actuator Model Compatibility: Ensure it fits your SQN/SQM actuator.
2. Required Damper Rotation Angle: Check the mechanical range of motion.
3. Mechanical Torque Load: Verify the linkage can handle the damper resistance.
4. Installation Space Constraints: Ensure adequate clearance for movement.

Integration with Siemens Actuation Systems

ASZ Series linkage assemblies are commonly integrated with:

• Siemens SQN Series actuators
• Siemens SQM Series actuators
• Modulating burner air control systems

Correct pairing ensures smooth modulation and repeatable positioning accuracy.