1

Product Overview

Introduction

The Unit Vent Controller—0 to 10V Output is the Siemens Building Technologies, Inc. Terminal Equipment Controller (TEC) used in unit ventilator applications. See Figure 1. It provides Direct Digital Control (DDC) for five applications. The controller can operate as an independent, stand-alone, DDC room controller or be networked with an APOGEE field panel.

The controller provides all termination, input/output, system and local communication connections. See Figure 1. The controller hardware consists of the controller with cover and mounting bracket.

Table 1. Unit Vent Controller – 0 to 10 V Output Applications.

Standard Applications

2281 Heating and/or Chilled Water Cooling, ASHRAE Cycles l and II

2283 Heating and/or Chilled Water Cooling, ASHRAE Cycle III

2284 Heating and DX Cooling, ASHRAE Cycles I and II

2286 Heating and DX Cooling, ASHRAE Cycle III

2287 Nesbitt Cycle W

2299Slave Mode (no control; available for set up, and point extension device)

Ordering Notes

Unit Vent Controller – 0 to 10 Volt Output

540-509

Siemens Building Technologies, Inc.

1

Page 11
Image 11
Siemens 125-1957 owner manual Product Overview, Introduction, Ordering Notes, Standard Applications

125-1957 specifications

Siemens 125-1957, a notable creation of the German engineering giant Siemens, is recognized for its innovative design and advanced technology in the realm of electrical engineering. This model is emblematic of the mid-20th century's commitment to optimizing electrical machinery for industrial applications, contributing to enhanced productivity and efficiency.

One of the main features of the Siemens 125-1957 is its robust construction, designed to withstand the demanding environments of industrial settings. The body of the machine is built from high-grade materials, ensuring durability and longevity. It is also designed to minimize vibration and noise during operation, thus enhancing the user experience.

Technologically, the Siemens 125-1957 incorporates advanced electric motor technology, which provides reliable performance across a variety of applications. The motor is designed for high efficiency, allowing it to operate effectively under load while consuming less energy. This efficiency is crucial in industrial applications where operational costs are significant. The motor is also equipped with thermally protected windings, which prevent overheating and extend the service life of the equipment.

The 125-1957 model is characterized by its adaptability in various operational settings. It is compatible with a range of automation systems, making it a versatile choice for factories and production lines. Its design allows for easy integration with existing equipment, minimizing downtime during installation.

Moreover, the Siemens 125-1957 boasts a user-friendly interface, making it accessible for operators with varying levels of expertise. It comes with comprehensive safety features, including circuit protection and emergency stops, ensuring that it meets the strict industrial safety standards.

In summary, the Siemens 125-1957 represents a blend of robust design, advanced motor technology, and user-oriented features. With its energy-efficient performance and adaptability, it stands out as a key asset in industrial electrical engineering, demonstrating Siemens' commitment to innovation and quality in the manufacturing sector. This model continues to be relevant, supporting various industries in their pursuit of efficiency and reliability.