The HVAC Coil Blog


Emergent Coils’ GSA Contract and Nonprofit Discounts

Posted By Tommy Thompson On 05/22/2017 at 08:36PM

I want to remind everyone that Emergent Coils has a GSA Contract and a Nonprofit Discount program. We wouldn’t want our government and nonprofit customers to miss out on these important opportunities.

GSA Contract

Emergent Coils was awarded GSA Contract No. GS-07F-130DA for Schedule 56 / SIN 563 27 on July 1, 2016 and the contract runs through June 30, 2021. This 5-year contract allows government agencies to efficiently purchase a wide range of HVAC coil products and services from Emergent Coils at approved pricing.

We are the government’s go-to source for new and replacement chilled water coils, hot water coils, steam coils, steam distribution coils, DX evaporator coils, condenser coils, stock booster coils, fan coils, tube bundles and heat exchangers. Having the contract speeds up the purchase process for our government customers.

Our products can be purchased directly through the GSA Advantage! Website Nonprofit / Charity Discounts We kicked off our charitable giving last year with a donation to Shepherd’s Field Children’s Village in Tianjin, China. Shepherd’s Field was in need of new equipment for its hydroponic greenhouse and we volunteered to design and install a better system for heating and cooling, including shade cover, fans, proper ventilation. The orphans at Shepherd’s Field now enjoy fresh organic produce straight from the greenhouse all year long.

This year, Emergent Coils is giving back to qualified nonprofits by offering a discount of 10% on HVAC coils and other products found on our website. Nonprofits need donations, grants and other revenue to fulfill their missions, which is why we want to do our part to reduce their operating expenses by lowering HVAC coil costs in 2017.

To qualify, nonprofit organizations must provide proof of their tax-exempt status under Section 501(c)(3) of the U.S. Internal Revenue Code when placing their order. For more information, visit Emergent Coils Non-profit For questions about our GSA Contract and Nonprofit Discount program, or to place an order, please contact us at 1-855-COIL-NOW (1-855-264-5669) or sales@emergentcoils.com.

4 Tips for Improving Energy Efficiency in Commercial Buildings

Posted By Tommy Thompson On 05/21/2017 at 09:37PM

As I’ve discussed before, you can improve the energy efficiency and performance of your commercial HVAC system by doing regular maintenance (cleaning coils and replacing them when they start to fail, etc.). But improving energy efficiency in commercial buildings goes beyond HVAC systems.

According to the U.S. Department of Energy, lighting represents the largest source of electricity consumption in commercial buildings, costing an estimated $38 billion per year. The National Renewable Energy Lab is working on a way to help commercial buildings save on lighting and ventilation costs by improving the accuracy of motion detection. https://energy.gov/public-services/commercial-buildings

In the meantime, here are 4 Tips for improving energy efficiency. Don’t forget to share this information with tenants and others in your buildings to improve overall energy efficiency. • Rethink your lighting. o Install occupancy sensors, which can reduce lighting costs by up to 40%. o If sensors aren’t an option, remove excess lighting not necessary for security and safety. Turn off lights in unoccupied areas and after hours. o Replace incandescent bulbs with compact fluorescents, which can last up to 9 times longer. o Upgrade fluorescent lighting fixtures to high-efficiency equipment. o Replace incandescent lights in exit signs with LED fixtures to reduce costs by up to 95%. • Use sun-blocking solutions on windows. o Close the blinds when direct sunlight is heating up the room, use solar shade screens, or add sun-control film to windows. This reduces HVAC usage and lowers energy consumption. • Power down office equipment when not in use. o Energy costs can be cut by approximately 40% by using sleep-mode when computers, monitors, printers, and copiers are not in use. Turning off office equipment after hours or unplugging unused equipment reduces costs even more. o Automate the process using “smart” power strips, which sense the presence or absence of office workers and turn the attached equipment on or off accordingly. • Buy energy-efficient products. o ENERGY STAR certified equipment, including computers, monitors, and printers, are more energy efficient than other products, saving you money on utility bills, and helping protect the environment. For more tips on increasing your energy efficiency, visit DC’s Department of Energy & Environment website. https://doee.dc.gov/service/energy-tips-commercial-buildings Improving energy efficiency lowers overall operating costs and saves valuable resources. To learn more about improving the energy efficiency of your HVAC system with new or replacement coils, contact us at 1-855-Coil-Now or sales@emergentcoils.com today.

Making sure your commercial HVAC system is ready for summer

Posted By Tommy Thompson On 04/01/2017 at 09:51PM

Now is a great time to make sure your commercial HVAC system is ready to handle spring and summer cooling. Evaluating your evaporator coil and condenser coils is part of the process.

The evaporator and condenser coils inside a central air conditioner or heat pump facilitate the heat exchange process, which is the basis of refrigerated cooling and, in the case of heat pumps, heating. Refrigerant circulates on a continuous loop between the evaporator coil and condenser coil.

As you probably know, the evaporator coil is located inside or near the air handler where the blower fan is. The condenser coil is located outside in the condenser unit, which also contains the compressor, a fan and copper tubing, as well as valves and switches. Condenser coils come in a variety of shapes, but for most central air conditioning systems, the condenser coil wraps around the sides of the outdoor condenser unit. The evaporator coil works with your heating system in the winter and your cooling system in the summer. Evaporator coils are made from copper, steel or aluminum because these metals conduct heat easily. The evaporate coil operates with the air conditioner or heat pump to condition and cool indoor air that flows over it by removing moisture and heat. In winter, the heat pump pulls air in from the outside and runs the air over the evaporator coil. The colder air is warmed by the evaporator coil and then pumped through the ductwork to heat the building. Even if the air outside the building is below freezing, the HVAC system is able to pull some heat from it. The first sign there may be a problem with the condenser coil is when the temperature of the cooled air is warmer than the thermostat setting. Check the amount of refrigerant in the system to make sure there is enough coolant. If the coolant level is OK, it might be time to replace the condenser coil. Check your local guidelines to learn about the proper disposal of old condenser coils. Also check for leaks in your evaporator coils if the refrigerant level is low. Corrosion from building materials, furniture and common cleaning solutions that produce fumes called volatile organic compounds (VOCs) can cause the evaporator coils to leak. Contact our coil experts at 1-855-Coil-Now or sales@emergentcoils.com if your commercial HVAC system needs new or replacement condenser and evaporator coils.

A Few Facts about HVAC Chillers

Posted By Tommy Thompson On 03/06/2017 at 07:18PM

HVAC chillers are used in commercial and industrial refrigeration systems for a variety of applications, such as pumping water to coils in plants and commercial buildings, cooling medical devices, and processing plastics. Since chillers and the coils we sell go together, here are a few facts about chillers:

HVAC chillers are typically made up of a compressor, condenser, evaporator, metering device, and other components.

There are two primary types of condenser cooling methods: air-cooled and water-cooled. Air-cooled condensing methods use a fan to force cool air over the condenser coils. Air-cooled condensers require ambient temperatures of 95°F (35°C) or below to operate effectively, which means air-cooled condensers are a poor choice for high heat environments. Water-cooled condensing methods fill the condenser coils with circulating water, and two steps are involved. First, heat moves from refrigerant vapor into the condenser water, then the warmed water is pumped to a cooling tower where the process heat is released into the atmosphere. In hot environments, water-cooled condensers use less energy than air-cooled because the temperature of the water is much lower than the air temperature. Another common type of condenser cooling method is the remote air-cooled condenser chiller system. The condenser is positioned remotely, often outdoors, with the main part of the chiller near the application. This type of system works well in areas where there is inadequate air for efficient operation of the condenser near the application, such as a facility with low ceilings or tight spaces.

HVAC chillers operate with a closed-loop system, so the recycled coolant remains in the chiller. There are number of different types of refrigerants in use today. The chiller has a separate tank that filters and cleans the coolant before returning it to the main storage area for reuse.

Some commercial chillers contain large cooling towers attached to the compressor to provide additional cooling power. The cooling towers accelerate the evaporation of the heat from the refrigerant, which improves the chiller's effectiveness.

HVAC chillers can come with a local or a remote-control panel that transmits the chiller's pressure and temperature. Some models also include microprocessor controls and emergency alarms.

To find the right coils to go with your HVAC chiller, contact us at 1-855-Coil-Now or sales@emergentcoils.com today.

Proposed New DOE Standards for Commercial Boilers

Posted By Tommy Thompson On 01/02/2017 at 03:52PM

The U.S. Department of Energy (DOE) recently proposed new efficiency standards for commercial boilers, commonly used to heat office buildings, hospitals, schools, and other commercial and industrial buildings. http://energy.gov/sites/prod/files/2016/03/f30/Commercial%20Packaged%20BoilersNOPR0.pdf

Commercial boilers either use oil or gas as the fuel source, and many provide both hot water and space heating. According to the Appliance Standards Awareness Project, the current standards for commercial boilers require a minimum efficiency of 77% to 84% depending on the specific type, size, and fuel. The new proposed standards would raise the minimum efficiency levels to 81-88%. The DOE is scheduled to publish a final rule for commercial boilers later this year, and the new standards would take effect three years later. Appliance Standard

Commercial boilers are generally used to heat buildings with a central system, where boilers provide hot water or steam for heating and chillers provides cold water for cooling. Hot water produced by a boiler is pumped through pipes and delivered to equipment throughout the building, including hot water coils in air handling units. Steam boilers produce steam that flows through pipes from high pressure areas to low pressure areas. Steam can be used directly by equipment or by a heat exchanger and tube bundle that supplies hot water to equipment.

Boilers are one of the largest energy users in a building, and the new standards are designed to reduce consumption by about 2-6% compared to current standards. Some commercial boilers already meet the proposed standards.

The proposed standards will not require building owners to replace commercial boilers, but there are ways to improve the energy efficiency in your current boiler. For example, install a high efficiency heat exchanger, either proactively or when the current heat exchanger begins to fail. The heat exchanger transfers energy from an outside source into usable heat, and some heat is lost during the process. Reducing the amount of wasted heat increases the boiler’s efficiency and reduces energy costs.

To increase the energy efficiency of your current boiler without replacing the entire unit, upgrade to a higher efficiency heat exchanger (link to https://www.emergentcoils.com/applications/10-heat-exchanger). Heat exchangers can be fabricated to your specifications or cross-referenced with your current make and model for specs. Contact Emergent Coils at sales@emergentcoils.com or 1-855-Coil-Now for more information.

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