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Author: Javelin Controls
Date: February 21, 2022

4 Ways To Cut Operations Costs With A HVAC System From Javelin Controls

The heating, ventilation and air conditioning industry cover a variety of systems that are used to move air between indoor and outdoor areas. As well as this, they help to keep commercial and residential buildings warm or cool. Even the most modern of HVAC systems can be costly to install and to run.

They can consume as much as 30% of a building's energy use thus causing a big hit to a company's operational expenses. Systems such as these are greatly beneficial in the management of a building's heating and cooling systems, ventilation and much more. By considering the energy efficiency of an HVAC system from Javelin Controls, you can get the most out of your system with cheaper operational costs.

But how is this achieved?

A simple way of achieving less energy consumption and operational costs with heating, ventilation and air conditioning is to have it controlled in accordance with real-time demand. This is especially relevant during the pandemic where there are fewer people in office spaces. Even when office spaces are empty, traditional controls will continue to pump out heated and cooled air regardless of whether it is needed or not.

In addition to making thermostats programmable, demand-controlled HVAC can also automate time of day schedules for other parameters that can be turned on during regular working hours and be turned off automatically afterwards. This concept can also be taken much further allowing for zoned spaces that can be manually controlled according to comfort as well as detecting the occupancy of office spaces and adjusting HVAC controls according to the current needs.

Furthermore, this guide will demonstrate how an HVAC system from Javelin Controls can help cut operational expenses.

Air Flow Control with Variable Air Volume (VAV) Boxes

VAV boxes allow for maximum comfort within office spaces, without any increase in energy usage and operational costs. They feed air of a constant temperature into different areas of your building. The amount of air or level at which it is expelled can be adjusted to suit the occupants and create a comfortable environment. Newer systems do this with dampers. They act as vents that open or close to distribute the air evenly where required.

Boxes such as these are installed in the ducts close to the outlet of each zone of your HVAC system. In practice, this may be useful in any room filled to full capacity, as adjusting the thermostat will open the dampers and allow for more chilled air within the space.

Alternatively, in an office that is too cold, the VAV box will be signalled from the thermostat to close the dampers and therefore reduce cool air spreading throughout the office.

As a result, these can be greatly beneficial in cutting operation costs by customising cooling and heating systems so they do not need to be run continuously and unnecessarily.

Underfloor Air Distribution

Air distribution for new construction can help provide further comfort at a decreased cost. This works as conditioned air runs through a plenum space under a raised floor that is often 12 to 18 inches above a concrete slab, rather than overhead through ducts. In some instances, fan-powered terminal units and ducts may also be placed under the floor. The air then reaches the space in question through diffusers in the floor.

Distribution like this is much more efficient due to the natural thermal stratification of air and because the air source is closer to where the occupants are located rather than raised high above them.

Underfloor distribution allows occupants to use higher setpoints on thermostats as the efficiency is increased. This system is great for open planned offices, as the raised floor can also accommodate computer network cables and power.

SIgn on a door that reads 'We're Air Conditioned For Your Comfort'

Occupancy Sensors

One key way of increasing energy savings within your facility is with the use of lighting sensors. Electronic sensors such as this detect when occupants are in a room and turn the lights on or off according to when they are actually needed.

Modern building automation technology and HVAC systems are great in that light sensors can be integrated with HVAC systems to control heating and cooling as well as lighting only when it is required.

Up until recent years, installing light sensors was something that could only be considered when designing HVAC systems for new spaces or in instances of major renovations. The reason for this is the need to hard-wire the sensors directly to the light sources for each space. However, innovation in modern technology allows for wireless sensors that are much more cost-efficient and quick to install, without a need for wiring.

Sensors and HVAC Systems in More Detail

How do sensors and an HVAC system from Javelin Controls work? Simply put, when the occupancy sensors detect that a certain space is not in use, a signal is sent that turns off or turns down the flow of conditioned air to that space of the floor or the building. Estimates on how much energy can be saved can vary on the occupancy of the space, the chosen sensor technology and the design of the HVAC system but can reach as much as 30%.

Sensors such as these implement a range of technologies that detect occupancy in a room or space. These include passive infrared (PIR) which detects movement, cameras, microphones and magnetic sensors on doors. Other sensors use low energy Bluetooth to track the location of occupants within a given space. However, there are positives and negatives to each of these technologies. For example, the use of cameras can raise concerns about privacy within a facility.

In order to get the most out of using occupancy sensors as part of an HVAC system from Javelin Controls and reduce energy consumption, first consider areas that are used intermittently throughout the day. For example, in spaces such as conference rooms, ensure that you choose the sensor technology best suited for your space.

Regular Maintenance of HVAC systems

It is essential even for the newest HVAC systems to be properly maintained in order to achieve optimum efficiency. Ensure that you use an experienced and qualified HVAC company that can confidently configure equipment so it continues to run as it is needed to.

It can be tempting to ignore annual check-ups, however, you should think of this process similar to how you would for a car. You would not miss a yearly MOT, even if you thought your vehicle was running just fine. Maintenance for your HVAC system can be extremely valuable in ensuring that you get the true value out of your system and by ensuring everything is working efficiently, you will cut costs. Maintenance will ensure that you prolong the lifespan of the system, stay cool in the summer and warm in the winter. In addition, you will be able to avoid unexpected issues that may significantly impact the HVAC system’s performance.

During a maintenance visit, sensors will be checked by our professionals to ensure they are working properly. If they are part of a fairly old system or being affected by external factors, they could be inaccurate. Checks like this are vital in the smooth running of your systems and so should only be carried out by expert service technicians.

As well as this, schedules can be checked to ensure they are appropriate for your building. Each client’s needs will vary so we make sure your HVAC systems are optimised to your own requirements.

A Few More Considerations

Maximising space can be one of the most effective ways of reducing costs. Traditional HVAC systems can be bulky and by considering space-saving units, you can benefit by capitalising on the extra space. These systems can free up areas within a building that can be used for additional floors. This can then drive more revenue as the space can be used up for an office and apartment building.

Additionally, products that are outdated are more likely to fail and require additional maintenance that can be costly. A solution here is to ensure you install newer and more durable components such as radiators, heat pumps and boilers. These systems use the latest in up to date technology and thus will require less repair and reduce costs in the long run.

Additionally, an HVAC system that is poorly installed will result in more wastage as energy is used inefficiently. The best practice here is to create a smart plan for new installations by considering the level of occupancy throughout a building throughout a day and year. Buildings that are empty during certain seasons such as the summer may not require cooling during that time as it wouldn’t be necessary. Furthermore, if there are times of the day which are busier than others, adjusting the temperatures accordingly, will ensure that everyone in the building is comfortable whilst reducing costs.

Lastly, ensuring you have a modern HVAC model and ensuring regular maintenance will ensure that operations run smoothly and efficiently, which will cut costs on wastage and constant repairs.

Cutting Costs with an HVAC System From Javelin Controls - Conclusion

When considering how to cut costs with your HVAC system, there are a number of ways you can do so. However, these systems are very complex and engineered with multiple elements that allow you to maintain a comfortable environment. They often filter the surrounding air or rely on intelligent sensors to fulfil their roles.

Because of this, they need regular expert attention. To get the best return on investment and make the most of your systems - regular servicing and professional installation are necessities. This way you can mitigate any risks and prolong the life of each system or control.

More about Javelin

Get in touch with the Javelin Controls team to transform your work environment with a high-quality building management system and to book an expert service. We’ll be more than happy to discuss your control and HVAC system requirements and find a customised solution to suit your business needs.

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