It is said that the stock of knowledge doubles every eight years. This is more so in regard to scientific knowledge. Anergy is marketing a number of products-mainly control system components for HVAC industry. To understand HVAC Control system, an engineer need to have reasonable exposure to many branches of engineering like air-conditioning, refrigeration, mechanical, electrical, electronics, instrumentation etc. It is a Herculean task to keep abreast with the latest developments in all these branches of engineering which have a bearing on HVAC Systems and controls. Taking into account this challenge, Anergy’s endeavour is to progressively disseminate broad theoretical knowledge necessary for the understanding of control applications in HVAC systems through these pages. New topics will be added to this section periodically in brief modules that can be understood not only by the practicing engineer but other technicians as well.

- Why controls?

- Terminologies

- Types of Switches

- When will HVAC Controls become intelligent

Write-ups

- Importance of Control Valve Flow Characteristics - If any!

- Control Valves- Material of Construction

- Simultaneous Temp. Controller

- Modulating Positional Control

- 2-Way v/s 3-Way Control Valves

- A Tale of two Kwhs

- Locations of Temp. Sensors is the key to comfort

- Thermal energy/BTU meter the need for and installation care

- Be Careful when Piping 2/3 way Control Valves

Feedback from readers are solicited with regard to what has been discussed and what you would like to see discussed in future modules. Please forward your feedback through e-mail / post.