At Pleune, our customers' needs are at the heart of our business. No where is this more apparent in our selection of equipment and services we offer our customers. In a typical building, about 50% of your energy costs are due to your HVAC systems. We can help you save on those costs - from pneumatic upgrades to new construction projects, we can customize a system making your facility more efficient, sustainable and profitable, utilizing energy saving solutions such as: Off site access and email/text alarming Properly controlling your equipment and running them only when conditions warrant can lead to major energy and financial savings, and unnecessary wear and tear. Heat-recovery technology transfers energy from exhaust air to incoming outside air. This greatly reduces the energy that's required to heat or cool incoming air. As a result, businesses can recover 50% to 80% of HVAC energy waste. Pleune Service Company is a Licensed Tridium Niagara AX Dealer, a non-proprietary system.

This means any HVAC contractor wanting to work on your controls can. Other companies recommend systems that only they can work on - why wouldn’t we do the same? Pleune Service Company makes professional equipment recommendations that are in the best interest of our customer. You may not have a choice in what equipment works best at your facility, but when it comes to service, you always should. And Pleune Service Company works best at every facility. Fill Out Our Survey Our mechanical systems maintenance service department is committed to maintaining the highest level of satisfaction. Whether it is installing a brand new system or cleaning and re- tuning a boiler, you will find us to be the most thorough and dedicated company. We are experienced at servicing a broad range of HVAC equipment such as: Data Room Air Conditioners Peace of Mind — The knowledge that should a problem arise, fast competent response is just a phone call away. Priority Response — We offer a higher priority response to those customers with a service agreement.

Documentation —- We provide complete documentation of the contract services we have provided along with a PM binder left on your site. Reduces Operating Costs — With a service agreement you are effectively time-sharing the right amount of technician labor to keep your facility operating at peak levels.average wattage window ac unit Protects Your Investment — A system that is allowed to deteriorate over time quickly loses its value and effectiveness. copper in ac unitsWith regular attention, HVAC control systems maintain their value through the benefits they provide, such as an energy efficient comfortable environment.buy 3 ton ac unit Preferred Labor & Materials — The customer will be advised of the defect. Subject to approval by an authorized agent of the customer, work will be performed on our preferred time and material basis.

Emergency Labor — This refers to all of the necessary unscheduled emergency labor to restore, repair, or replace the equipment on the list of maintained equipment during CTI’s normal working hours. Any material replacement will be invoiced on a preferred pricing basis. Comprehensive Coverage — The labor and material components and parts necessary to restore covered equipment to normal operation. These replacements will be of like or current design to prevent system depreciation or obsolescence. All work will be performed during CTI normal working hours. 24-Hour Coverage — This coverage includes back-up emergency services for critical responses on a 7-day/week, 24-hour/day basis. Subject to approval by an authorized agent of the customer, work will be performed on our overtime preferred time and material basis. The Heating, Ventilation and Air Conditioning (HVAC) department repairs and maintains all heating, cooling and exhaust air devices as well as hydraulic cooling and heating systems.

Each of our buildings have unique "personalities" when it comes to our ability to quickly adjust temperatures. The HVAC department manually ajusts temperatures in buildings where thermostats can not be adjusted by automated computer controls. The Controls department works to keep our buildings' climate comfortable through automated controls. Temperatures in most of our newer buildings can be adjusted by a central control center located in Holmes Convocation Center.  We are working to retrofit many of our older buildings with automated controls as well.It's more responsive, more accurate, and more energy efficient. The Controls department reviews control system desigsn and implements solutions to improve performance and energy conservation. Which should I call to adjust my temperature?Both departments work closely with each other to help fulfill your request.  Submit a work request through AiM, or click here for more info. Submit a Work Request How may we help you?

Physical Plant265 Dale StreetPO Box 32105Boone, NC 28608-2105Phone: 828.262.3190
Fax: 828.262.4017 Request Access to AiM (pdf) Enter a Central Warehouse Request Request Access to Online Vehicle Rentals (pdf) Initial Notification of Injury Supervisor's Accident Investigation Form Doctor Visit (pdf) Babel Buster Network Gateways: Big Features. Small Price.Control Solutions, Inc. - Minnesota DDC knowledge has become critical in the current HVAC market, but the only sources of information have been highly technical until DDC knowledge has become critical in the current HVAC market, but the only sources of information have been highlyWe asked Leo Meyer, the author of the recently released Digital Controls for HVAC Technicians to share with us an introduction to Digital Controls and it�s advantages. �DDC is actually a simpler system to work with than other systems,� Meyer tells us. �You�ll find how simple HVAC with DDC

can be and how simple troubleshooting is with DDC.� What follows is an excerpt You might find it hard to believe, but for an HVAC technician, a DDC system is much simpler than a pneumatic system. In many ways, DDC systems and pneumatic Both systems perform the same functions: o  Sensors monitor controlled variables such as temperature, humidity, and flow.o  Actuators energize or modulate controlled devices such as motors, Both systems have the same mechanical functions: o Automatic dampers control airflow. o Automatic valves control hot and chilled water flow. In some important ways, DDC systems and Fig.1 shows a single zone heating and cooling pneumatic system with mixed air control. (The operation of this system is explained in detail in the book Control System Basics for HVAC Technicians, LAMA Books) Briefly, the relays and receiver-controllers are necessary to transmit the proper output pneumatic signal (air pressure) to position the actuators for

the dampers and valves. Now look at Fig. 2 This shows the basic components of a DDC system for a similar HVAC system. Don't be put off by the number of wires shown, because these are installed by the computer technician. is simpler for the HVAC technician because the complex system of relays, receiver-controllers, high-pass relay, and minimum position relay is eliminated. All of these functions are performed within the controller: Wiring from electronic sensors transmits electrical input signals to the controller. Wiring from the controller sends output signals to the damper and valve actuators causing them to open, close, or modulate as required. The damper and valve actuators are electrically A work station central computer communicates with several controllers to receive, process, and store data. DDC systems for HVAC have many advantages over No moving parts for controller Fewer and simpler mechanical components

Fewer maintenance problems than pneumatic o No air compressor or air lines to maintain o No air leaks o No dryers or filters o No problems of moisture in the lines o No need for routine calibration Conditions stay more constant with less offset (control point is close to set point). An off-site computer can be used to supervise the Safer, because only those with a password can More adaptable to new developments in HVAC system Can be integrated with other building systems such as fire, security, and lighting. Information about the system can be obtained at a Set points and control strategies can be modified Detailed data may aid in troubleshooting A major advantage of a DDC control is the vast amount of information that can be obtained at the press of a few keys. require hours to gather is now available in a few seconds. The amount and type of information that can be obtained depends upon the size and type of the system

as well as the number and location of sensors in the system. Set points of the controlled variables o Conditioned space air o Hot water supply o Hot water return o Chilled water supply o Chilled water return Electrical values�voltage, current, and demand Monitor condition of critical equipment such as Give warnings such as alarms and text messages. Retrieve and store operating data. Provide more system information at a central work Provide system history and trends. In short, a DDC control system adds more capability and flexibility to an HVAC system. It allows an operator to control and adjust a system from a central work station. The operator can change set points for such conditions as air and water temperature and time schedules from the central work DDC provides a powerful tool for energy managementThe system makes it easy to gather information about electric power demand and energy consumption.

It can give you information about electric demand at peak hours when electric rates are highest. It can let you schedule the operation time of high-energy users for different times of the day to reduce both demand and peak hour consumption. Regular maintenance reduces building operation costs and provides more reliable operation. DDC can set up a maintenance schedule so that the computer will notify the building operator when each inspection and maintenance procedure is due. In addition the DDC can monitor the operating values of each piece of machinery and predict potential failures or need for additional maintenance or adjustment. The DDC system can manage building security by operating and monitoring security cameras, managing door access cards, and verifying whether doors are locked or unlocked Fig. 7. The system gives alarms when a secure area has been entered. An HVAC alarm system can be programmed to give an alarm signal for system malfunctions.