Atlas Butler is your local full service Heating, Ventilation and Air Conditioning (HVAC) contractor. Established in 1921, Atlas Butler has first-hand experience with state-of-the-art innovations and innumerable older styles of HVAC systems. Since HVAC technology rapidly changes, we think our tenure is an invaluable benefit to Columbus area businesses. Atlas Butler is the best choice for tackling your small or large HVAC issues. We believe in being your educated consultants and have an extensive and resourceful library of archived materials. Atlas Butler is in this industry and in this area for the long term. Contact us with your HVAC challenge today!

Electrical/Electric Controls

Electronic control devices are temperature controls, humidity controls, relays, valves, dampers, pressure controls, and thermostats We are astute in the repair, maintenance, and installation of electrical and electronic control systems. These systems work independently of other controls. They are hardwire interlocked to each other to accomplish a specific sequence of operation. The power required is either line voltage or low voltage, depending on the application. This type of control requires a limited amount of tools and ability to maintain. A broad application of products can be used to meet any control application. .

Pneumatic Control Systems

Atlas Butler is your best choice for the repair and maintenance of pneumatic control systems. In the past, pneumatic controls systems were the most cost- effective system to install in a commercial building. The high cost of properly maintaining this system is a drawback to this type of installation. The proper tools and the technical ability to work on a pneumatic control system is limited to either the manufacturer or to an independent contractor that has invested heavily in the equipment and manpower necessary to perform this specialized service.

Pneumatic control systems use compressed air to supply energy for the operation of valves, motors, relays, and other system equipment. Pneumatic control systems are made up of the following elements:

  1. A source of compressed air, which is stored in a receiver tank at a pressure capable of supplying all the pneumatic devices in the system with operating energy.
  2. A refrigerant air dryer and oil removal filter to ensure dry oil-free air downstream.
  3. A pressure reducing station which reduces receiver tank pressure to a normal operating pressure of 15-25 psig, depending on system requirements.
  4. Air lines (which can either be copper or polyethylene tubing) that connect the supply air to the control devices.
  5. Control devices of thermostats, humidistat controllers, valves and dampers.

Operating, maintenance and energy saving tips

Maintaining proper supply air temperatures during building load changes is key to achieving high efficiency and optimal performance of your heating and cooling system.

An improper setup could result in system hunting and over-worked chillers, boilers, and pumps. This causes unstable controller functions and hydronic balancing problems.

It is important to understand how to plot reset schedules during controller setup and calibration in accordance to building demand. This saves energy and creates less wear and tear on equipment, thus providing better climate control.

The dual input receiver controller’s authority adjustment sets up proper deck temperature control automatically, plotted by the technicians reset schedule.

Can the original pneumatic compressor be replaced with just any air compressor?

No. Pneumatic control systems must be clean, dry, and oil-free or contamination will occur and result in expensive repairs. A cheaper regular shop air compressor is designed to migrate a little oil vapor from its crankcase to lubricate shop air tools. It should not be used to replace a control instrument compressor that runs at a third of the speed, run cooler temperatures and are not designed to sling oil.