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Office HVAC Zone Strategy in Nashville: A Property Manager’s Guide

Managing a comfortable, energy-efficient office building in Nashville’s variable climate requires more than just a powerful HVAC system, it demands a smart zoning strategy. As a property or facility manager, understanding how to properly zone your commercial HVAC system can mean the difference between soaring utility bills and optimized performance that keeps tenants happy year-round.

Understanding Commercial HVAC Zoning Systems

HVAC zoning is the practice of dividing your commercial building into separate areas (zones) that can be heated or cooled independently based on specific needs. Think of it as creating climate neighborhoods within your building, each with its own thermostat and control capabilities.

In Nashville, where summer temperatures regularly climb into the 90s and winter can dip into the 20s, a well-designed zone strategy isn’t just a luxury. It’s a necessity for managing operational costs and tenant satisfaction.

Why Nashville Office Buildings Need Strategic Zoning

Nashville’s commercial real estate market presents unique challenges:

  • Solar heat gain variations: South and west-facing offices absorb significantly more heat during afternoon hours
  • Occupancy fluctuations: Conference rooms, break rooms, and private offices have vastly different usage patterns
  • Multi-tenant considerations: Different businesses have different comfort preferences and operating hours
  • Seasonal extremes: The 70+ degree temperature swing between January and July demands flexible climate control

Core Components of Effective HVAC Zoning

Modern commercial HVAC zoning relies on electronically controlled dampers installed within your ductwork. These dampers open and close in response to signals from zone thermostats, directing conditioned air only where it’s needed.

Key components include:

  • Motorized zone dampers – Control airflow to specific building sections
  • Zone thermostats – Monitor temperature and send signals to the control panel
  • Zone control panel – Acts as the system’s brain, coordinating damper positions
  • Bypass dampers or variable-speed equipment – Prevent pressure buildup when zones close

For facilities managing multiple buildings or complex layouts, HVAC automation controls can integrate all zones into a single, intelligent management platform that learns usage patterns and optimizes performance automatically.

Determining Optimal Zone Configuration

There’s no one-size-fits-all answer, but these factors should guide your zoning decisions:

Factor Consideration Recommended Action
Building exposure Perimeter offices receive more solar heat Create separate zones for north, south, east, and west exposures
Occupancy density Conference rooms vs. individual offices Zone high-occupancy areas separately from low-traffic spaces
Equipment heat loads Server rooms, copy rooms, kitchens Isolate areas with internal heat generation
Operating hours 24/7 operations vs. standard business hours Enable independent scheduling for different tenant needs

Implementing a Zone Strategy for Multi-Story Office Buildings

Multi-story buildings present additional complexity. Heat naturally rises, meaning upper floors typically require less heating in winter but more cooling in summer. Many Nashville property managers find success with a hybrid approach combining floor-by-floor zoning with exposure-based zones on individual floors.

Perimeter vs. Interior Zone Strategy

One of the most effective commercial zoning strategies divides floor space into perimeter and interior zones:

Perimeter zones (typically 10-15 feet from exterior walls) experience direct sunlight exposure, heat loss through windows in winter, and greater temperature fluctuations from outdoor weather conditions.

Interior zones remain more stable because they’re insulated by surrounding spaces and protected from solar heat gain. They are primarily affected by occupancy and equipment heat, often requiring cooling even when perimeter zones need heating.

This strategy is particularly valuable in Nashville’s glass-fronted office buildings, where southern exposure can create significant cooling demands even on mild spring days.

Common HVAC Zoning Mistakes to Avoid

Creating too many zones: More isn’t always better. Excessive zoning increases installation costs, creates maintenance complexity, and can cause airflow problems. Most office buildings function optimally with 4-8 well-planned zones per floor.

Ignoring static pressure: When zones close, pressure builds up in the ductwork. Without proper pressure relief, you’ll experience noisy operation, reduced efficiency, and premature equipment failure.

Overlooking occupancy patterns: Zoning based solely on floor plans without considering actual usage patterns wastes the strategy’s potential. Conduct occupancy studies before finalizing your zone design.

Neglecting maintenance access: Zone dampers require periodic inspection and adjustment. If your commercial HVAC maintenance team can’t easily access dampers, issues will go undetected until comfort problems arise.

Integrating Plumbing Considerations into Your Facility Strategy

While planning your HVAC zones, don’t overlook the connection to your plumbing infrastructure. Many commercial buildings in Nashville integrate their plumbing and HVAC systems for optimal efficiency. Particularly when dealing with hydronic heating systems that use hot water distribution, water-source heat pumps that require coordinated plumbing and HVAC zones, and kitchen or breakroom locations where plumbing and HVAC loads intersect.

Taking a holistic approach to your building’s mechanical systems prevents conflicts between trades and ensures coordinated maintenance scheduling. Many facility managers find value in working with contractors who offer both disciplines under one roof.

Energy Management Through Smart Zoning

Nashville’s utility rates make energy efficiency a priority for any commercial property. Strategic zoning delivers measurable savings through several mechanisms:

Reduced runtime: Systems only operate in occupied zones, cutting runtime by 20-40% in typical office buildings.

Load balancing: Prevents oversized equipment from short-cycling by matching capacity to actual demand zone-by-zone.

Improved equipment longevity: Even wear across system components rather than constant operation at full capacity.

When combined with building automation, zone-based strategies enable sophisticated approaches like automated setback schedules for individual zones, adaptive learning that adjusts to actual occupancy patterns, and remote monitoring and adjustment via smartphone or computer.

Retrofitting Existing Buildings vs. New Construction

For new construction: Incorporate zoning from the design-build phase for optimal ductwork layout, equipment sizing, and control system integration. This approach typically costs 15-20% less than retrofitting and delivers superior performance.

For existing buildings: Retrofitting zone controls into established duct systems requires careful assessment of existing ductwork capacity, current equipment sizing, available space for damper installation, and cost-benefit analysis based on current utility expenses.

Many Nashville office buildings built before 2000 lack any zoning whatsoever. For these facilities, even basic zone upgrades deliver quick payback through reduced energy costs.

Maintenance Requirements for Zoned HVAC Systems

Zone systems add complexity, but they don’t necessarily increase maintenance burden, if you establish proper protocols:

  • Quarterly zone testing: Verify that dampers respond correctly to thermostat signals
  • Annual control calibration: Check and recalibrate zone thermostats and control sequences
  • Filter changes: Monitor filter conditions more closely in zoned systems
  • Control software updates: Keep building automation systems updated with latest firmware

Investing in a comprehensive preventive maintenance program protects your zoning investment and prevents small issues from becoming costly comfort problems.

Tenant Satisfaction and Zone Control

One underappreciated benefit of proper zoning is tenant satisfaction. When businesses have meaningful control over their space’s climate, complaints drop dramatically. Consider providing individual zone thermostats, override capabilities for special events or after-hours usage, and clear communication about how the system works.

Remember that perceived control matters as much as actual temperature. Even if ranges are limited, tenants who can adjust their own thermostat are typically more satisfied than those who must call management for changes.

Take Control of Your Building’s Comfort and Efficiency

Strategic HVAC zoning isn’t just about technology, it’s about matching your building’s mechanical systems to how your tenants actually use the space. Whether you’re managing a historic downtown high-rise or a newer suburban office park, the right zone strategy delivers measurable improvements in energy efficiency, tenant satisfaction, and equipment longevity.

As Nashville’s commercial real estate market continues to grow, property managers who invest in intelligent building systems will find themselves with a competitive advantage. Prospective tenants increasingly prioritize sustainability and comfort, making proper HVAC zoning a valuable selling point.

Ready to optimize your office building’s HVAC performance? The commercial HVAC experts at Interstate AC specialize in designing and implementing zone strategies for Nashville-area office buildings. With over 20 years of experience serving property managers and facility teams throughout Middle Tennessee, we understand the unique climate challenges your building faces. Contact our commercial team today for a comprehensive assessment of your current system and customized recommendations for improving comfort while reducing operational costs.

Smart HVAC Technology for Nashville Commercial Buildings: Automation Guide for Facility Managers

For property and facility managers in Nashville, keeping commercial buildings comfortable while managing operating costs can feel like walking a tightrope. The good news? Smart technology is transforming how commercial HVAC systems operate, giving you unprecedented control over energy consumption, maintenance schedules, and tenant satisfaction.

The Evolution of Commercial HVAC Technology

Gone are the days when commercial heating and cooling meant simple thermostats and reactive maintenance. Today’s smart HVAC technology brings sophisticated automation, real-time diagnostics, and predictive capabilities that fundamentally change facility management. In Nashville’s climate, where summer temperatures can soar into the 100s and winter lows dip into single digits, having intelligent climate control isn’t just convenient; it’s essential for protecting your investment and keeping occupants comfortable year-round.

Building Automation Systems: Your Facility’s Central Nervous System

Think of a Building Automation System (BAS) as the brain that coordinates all your building’s mechanical and electrical systems. These platforms don’t just control your HVAC, they can integrate:

  • Climate Control: Heating, ventilation, and air conditioning across multiple zones
  • Lighting Systems: Automated schedules and occupancy-based controls
  • Security Infrastructure: Access control and surveillance monitoring
  • Utility Metering: Real-time tracking of water, gas, and electricity consumption
  • Even Plumbing Systems: Monitoring water temperature, pressure, and leak detection

For Nashville property managers, HVAC automation controls offer the ability to manage entire portfolios from a single dashboard. Whether you’re overseeing a multi-tenant office building in downtown Nashville or managing a sprawling industrial facility, BAS technology gives you unprecedented visibility into how your systems perform.

Key Benefits of BAS Integration

Benefit Impact on Operations ROI Timeline
Energy Savings 15-30% reduction in utility costs 2-4 years
Reduced Downtime Predictive alerts prevent system failures Immediate
Extended Equipment Life Optimized operation reduces wear 3-5 years
Labor Efficiency Centralized monitoring reduces site visits 1-2 years
Tenant Satisfaction Consistent comfort improves retention Ongoing

Smart Thermostats: Small Devices, Big Impact

While comprehensive building automation delivers impressive results, sometimes the most significant improvements come from upgrading individual components. Commercial smart thermostats represent one of the most cost-effective entry points into HVAC automation.

Modern commercial thermostat solutions offer capabilities that traditional models can’t match:

Scheduling & Automation

  • Program temperature changes based on occupancy patterns
  • Automatically adjust settings during holidays and weekends
  • Create zone-specific schedules for different areas of your facility

Remote Access & Control

  • Adjust settings from your smartphone or computer
  • Grant access to maintenance teams without physical site visits
  • Monitor multiple properties from anywhere

Energy Analytics

  • Track consumption patterns by time, zone, and season
  • Identify inefficient equipment before it fails
  • Generate reports for budgeting and planning

Integration Capabilities

  • Connect with existing HVAC equipment regardless of age or manufacturer
  • Work within larger BAS platforms
  • Compatible with utility demand-response programs

Predictive Maintenance: Preventing Problems Before They Start

Traditional HVAC maintenance operates on a reactive model, when something breaks, you fix it. Smart technology flips this approach on its head through predictive maintenance capabilities that identify issues before they become emergencies.

Here’s how it works in practice:

  1. Continuous Monitoring: Sensors track temperature, pressure, vibration, airflow, and dozens of other parameters
  2. Baseline Establishment: The system learns normal operating patterns for your specific equipment
  3. Anomaly Detection: When readings deviate from expected ranges, alerts trigger automatically
  4. Maintenance Scheduling: Issues get addressed during planned service windows rather than emergency callouts

For facilities managers, this means fewer 2 AM phone calls about failed systems and significantly lower repair costs. When your commercial HVAC maintenance team can replace a failing component during regular service instead of conducting emergency repairs, you save both money and tenant goodwill.

Real-Time Monitoring and Remote Diagnostics

One of the most valuable aspects of smart HVAC technology is the ability to monitor system performance in real-time, regardless of where you’re physically located. This capability proves especially valuable for:

Multi-Property Management

  • Monitor all buildings from a centralized dashboard
  • Compare performance across different sites
  • Identify which properties need attention

After-Hours Operations

  • Receive alerts about system issues immediately
  • Authorize or deny access remotely for maintenance teams
  • Verify proper system operation without site visits

Energy Management

  • Track consumption during peak demand periods
  • Implement load-shedding strategies during utility peak pricing
  • Demonstrate sustainability efforts to tenants and stakeholders

IoT Integration: Connecting Your Entire Facility

The Internet of Things (IoT) takes smart HVAC to the next level by creating a fully connected facility ecosystem. In this environment, your HVAC system doesn’t operate in isolation, it communicates with other building systems to optimize performance holistically.

Practical IoT Applications:

  • Occupancy Sensors detect when conference rooms or office areas are empty, automatically adjusting HVAC output to save energy while maintaining comfort when people return
  • Weather Integration connects to local forecasts, pre-cooling buildings before heat waves or adjusting schedules for mild weather days
  • Equipment Communication allows your ductless mini-split systems to coordinate with central HVAC, ensuring efficient zone control without conflicts
  • Utility Integration enables participation in demand-response programs, automatically reducing load during peak pricing periods while maintaining minimum comfort levels

Even plumbing systems benefit from IoT connectivity. Smart water heaters can coordinate with HVAC systems to manage total energy load, while leak detection sensors can trigger HVAC adjustments to prevent mold growth in affected areas.

Data Analytics: Making Informed Decisions

Smart HVAC systems generate massive amounts of operational data. The key is transforming that data into actionable insights that improve your bottom line.

What You Can Learn:

  • Which zones consistently require more heating or cooling (identifying insulation issues or problematic equipment)
  • How occupancy patterns affect energy consumption (optimizing schedules for actual usage)
  • The true cost of operating different buildings in your portfolio
  • Which equipment approaches end-of-life and needs budget consideration
  • Historical trends that help predict future maintenance needs and costs

This analytical capability transforms facility management from reactive to strategic. Instead of simply responding to problems, you’re actively optimizing performance based on hard data.

Implementation Considerations for Nashville Properties

If you’re considering smart HVAC integration for your Nashville property, here’s what to consider:

Assessment Phase

  • Evaluate current equipment age and compatibility
  • Identify integration opportunities with existing systems
  • Determine whether partial or complete automation makes sense

Technology Selection Work with experienced providers who understand both modern smart technology and legacy systems. Interstate AC specializes in integrating new automation with existing equipment, so you’re not forced into complete replacements unnecessarily.

Installation Approach Consider phased implementation:

  1. Start with smart thermostats in high-traffic or problematic zones
  2. Add remote monitoring for critical equipment
  3. Expand to comprehensive BAS as ROI proves value
  4. Integrate additional systems (lighting, security) over time

Training & Support Ensure your maintenance staff and property teams understand new capabilities. The best technology fails if people don’t know how to use it effectively.

Cost Considerations and ROI

Smart HVAC integration represents a significant investment, but the returns justify the expense for most commercial properties:

Upfront Costs:

  • Smart thermostats: $200-$500 per zone
  • Basic automation controls: $5,000-$15,000 for small properties
  • Comprehensive BAS: $2.50-$10 per square foot depending on complexity
  • Professional installation and programming

Ongoing Costs:

  • Cloud-based monitoring subscriptions
  • Annual maintenance and updates
  • Training for new staff members

Expected Returns:

  • 15-30% reduction in energy costs
  • 20-30% decrease in maintenance expenses
  • Extended equipment lifespan (typically 2-5 additional years)
  • Improved tenant retention and satisfaction
  • Reduced labor costs for facility management

Most properties see complete ROI within 3-5 years, with benefits continuing long after the initial investment is recovered.

Security and Reliability Concerns

As you integrate smart technology into critical building systems, security becomes paramount. Modern BAS platforms employ multiple layers of protection:

  • Network Segmentation: Building automation systems operate on separate networks from general business operations
  • Encrypted Communication: Data transmission uses enterprise-grade encryption
  • Access Controls: Role-based permissions ensure only authorized personnel can make changes
  • Backup Systems: Manual overrides remain available if automation fails
  • Local Processing: Critical functions continue operating even if cloud connectivity is lost

Working with experienced providers ensures these security measures are properly implemented and maintained.

The Nashville Advantage: Local Expertise Matters

While smart HVAC technology is universal, successful implementation requires local knowledge. Nashville’s specific climate challenges, building codes, and utility structures all influence how these systems should be configured and optimized.

Partnering with a local commercial HVAC provider who understands both cutting-edge technology and Middle Tennessee’s unique requirements ensures your smart systems deliver maximum value. From commercial heating services that handle Nashville’s surprisingly cold winters to cooling solutions that tackle our notoriously humid summers, local expertise makes all the difference.

Getting Started with Smart HVAC Integration

Ready to bring your Nashville property into the modern age of facility management? Here’s your roadmap:

  1. Schedule a Facility Assessment Have professionals evaluate your current systems, identify integration opportunities, and recommend specific technologies for your needs.
  2. Prioritize Based on Impact Focus first on areas where smart technology delivers the fastest ROI, typically high-traffic zones, equipment near end-of-life, or spaces with comfort complaints.
  3. Start Small, Scale Smart Begin with pilot programs in one building or section, prove the concept, then expand based on results.
  4. Plan for Long-Term Integration Choose platforms and providers that support growth, ensuring today’s investment remains valuable as you expand automation capabilities.
  5. Invest in Training Make sure your team understands how to leverage new capabilities fully, unused features provide zero value.

Take Control of Your Facility’s Future

Smart HVAC technology isn’t just about following trends, it’s about taking control of your operating costs, improving tenant satisfaction, and positioning your property for long-term success. As Nashville continues growing and commercial expectations rise, properties with advanced automation capabilities will have significant competitive advantages.

The question isn’t whether smart HVAC integration makes sense for your Nashville property. It’s when you’ll make the move and how quickly you’ll start realizing the benefits.

Ready to explore smart HVAC solutions for your commercial property? Contact Interstate AC at (615) 802-2665 to schedule a consultation. Our team of commercial HVAC specialists can assess your facility, recommend appropriate technology solutions, and create a customized integration plan that fits your budget and delivers measurable results. With over 20 years serving Nashville’s commercial sector and expertise spanning everything from traditional HVAC to cutting-edge building automation, we’ll help you make the transition smoothly and successfully.

Is It Helpful To Close Vents in Unoccupied Rooms?

As a business owner or facility manager, cutting costs while maintaining comfort is a constant priority. You may have heard the idea to close vents in unused rooms in order to reduce energy bills… but does this method really work in commercial buildings?

The short answer: no. In fact, closing vents could harm the HVAC system and increase costs over time. Interstate AC Service explains why this common myth doesn’t work and offers better alternatives for energy savings in your commercial space.

Why Closing Vents Can Hurt Your Business

Commercial HVAC systems are designed to handle a specific airflow, based on the size and layout of your building. Closing vents in unoccupied rooms disrupts this balance, creating unnecessary pressure in the ductwork. This added strain forces your system to work harder, which increases energy consumption and accelerates wear and tear on components.

For example, if vents are close in offices, warehouses, or conference rooms, the HVAC system continues to pull in the same volume of air, but now it has fewer outlets to release it.

Over time, this imbalance can lead to serious issues, including:

  • Cracked Ductwork: Increased pressure can cause leaks, reducing efficiency and creating air quality problems.
  • Higher Utility Bills: Paradoxically, your system works harder and uses more energy when vents are closed.
  • Mold Growth: Condensation builds up in improperly ventilated areas, leading to mold and mildew.
  • Damaged Components: Overworked motors, heat exchangers and evaporator coils can fail prematurely, resulting in expensive repairs.

Rather than saving money, closing vents increases maintenance costs and shortens the lifespan of your HVAC equipment – a lose-lose for your business.

Alternatives: Smarter Energy-Saving Strategies

If closing vents isn’t the answer, what can you do to reduce heating and cooling costs in your commercial building? Here are a few proven strategies that deliver:

  • Schedule professional inspections and tune-ups at least once a year. A clean, well-maintained system runs more efficiently, lowering energy costs and avoiding expensive repairs.
  • Modern commercial HVAC systems can be upgraded with zoning capabilities, allowing you to adjust temperatures independently in different areas based on occupancy.
  • Programmable thermostats allow you to set specific temperatures for certain hours, ensuring energy isn’t wasted when spaces are unoccupied.
  • Check windows, doors and walls for drafts or leaks, which force your system to overcompensate.
  • Unplug unused office equipment, turn off lights in empty rooms, and use ceiling fans to improve airflow. Small changes add up to significant savings.

By adopting these habits, your business space can improve energy use without risking HVAC damage or system downtime.

Partner With Interstate AC Service for Expert Care

So, is it helpful to close vents in unoccupied rooms? No. While it may sound like a simple fix, it creates more problems than solutions for your commercial HVAC system. Instead, let Interstate AC help you implement smarter energy-saving measures tailored to your building’s needs.

Our technicians specialize in commercial HVAC systems, offering maintenance, repairs and upgrades designed to reduce costs and maximize comfort. Call us today at (615) 802-COOL (2665) to schedule a consultation or request a free estimate.

The Role of HVAC in Indoor Air Quality Management

Have you noticed an increase in your employees’ allergies or sick days? If so, you’ll benefit from understanding how to improve air quality in commercial buildings. At Interstate AC, we’ve served the community for over 20 years and can efficiently tackle jobs of any complexity.

What Is Indoor Air Quality (IAQ)?

Indoor air quality includes the temperature, airflow, humidity levels, and pollutants in a building’s air. The U.S. Environmental Protection Agency estimates Americans spend roughly 87% of their time indoors. Consequently, indoor air often affects a person’s health more than outdoor air.

Indoor air pollution affects your employees’ health, satisfaction, and productivity. From reducing volatile organic compounds to regulating humidity, IAQ remains an important aspect of occupational safety.

Signs Your Company Has Poor Air Quality

How do you know you should improve air quality in commercial buildings?

Increased Health Issues

The most long-term effects of poor air filtration in a commercial office building include persistent health problems. The least severe consequences include a rise in allergy symptoms like a runny nose, scratchy throat, and itchy eyes. However, even minor symptoms can significantly reduce how efficiently your employees work.

Prolonged exposure to low-quality building air can have serious consequences for your workforce. A polluted indoor environment can produce the following health complications:

  • Coughing, wheezing, and trouble breathing
  • An increase in the frequency and severity of asthma attacks
  • A burning sensation in the chest
  • Eye and throat irritation
  • Chronic obstructive pulmonary disease and emphysema
  • An increased vulnerability to breast or lung cancer
  • An enhanced risk of heart attack

Uncomfortable Work Conditions

Employees thrive in office buildings with good indoor air quality. If the air quality is poor, your workers may notice a spike in relative humidity. When the level surpasses 60%, it can feel like working in a tropical jungle.

When an HVAC system doesn’t perform well, it may not have adequate air movement, which can cause your employees to feel too hot or cold. Uncomfortable indoor environments can also make it difficult for workers to concentrate.

Poor HVAC Equipment and Ventilation System Performance

HVAC systems that don’t perform well often lead to a poor indoor environment. A system may operate poorly because of dirt buildup or blocked air vents. Dirt and dust can contain indoor air contaminants, making maintaining indoor air quality impossible. When a commercial building has subpar HVAC systems, health complications aren’t far behind.

Unpleasant Smells

While not all indoor air pollutants (like carbon monoxide) create foul smells, mold, and other biological contaminants often do. These smells can distract from an office environment and indicate the presence of air pollution that can spread health complications throughout a commercial building.

How To Improve Indoor Air Quality in Commercial Buildings

Do you want to improve office air quality? Growing office plants and regularly dusting your office furniture can help, but don’t overlook the important role heating, cooling, and ductwork play in maintaining good indoor air quality.

Clean Your Air Ducts

If you want to improve air quality in commercial buildings, clean your air ducts every three to five years. If you notice the signs you have poor air in your office building, you should schedule duct cleaning more frequently. If you live in an area with poor outdoor air quality, you should also consider scheduling cleaning more often.

When dust builds up in your ducts or vents, exhaust fans blow it throughout your building. Investing in clean ductwork can help you improve indoor air quality throughout your building.

Change Your Air Filters

Improving indoor air quality requires regularly changing your system’s air filters. The air filter helps mitigate the effects of poor outdoor air quality by trapping dust and particulates before they enter your ductwork.

You can find air filters that only require cleaning or changing every three months, but you should change most filters every 30 days. Certain factors can increase how frequently you should change your filter, including:

  • Employees who smoke near the building
  • Allowing pets on the premises
  • Living in a polluted area
  • Not dusting or vacuuming frequently

Schedule Annual Furnace and Air Conditioning Maintenance

Routine HVAC maintenance plays an important role in maintaining indoor air quality. By scheduling maintenance for every HVAC device at least once a year, you ensure it continues to regulate humidity, maintain great airflow, and filter pollutants. This also saves you money in the long term by keeping your energy bills low, reducing the frequency of repairs, and extending the life of your device.

Install Filtration Systems

The Environmental Protection Agency identifies building-wide systems like an air purifier or indoor air quality sensors as one of the best ways to maintain adequate air quality. While your air conditioning and furnace play a pivotal role, the devices can’t handle all the purification you need.

Call Interstate AC To Improve the Quality of Your Indoor Air

Are you a building manager who wants to improve air quality in commercial buildings? Reach out to Interstate AC.

Whether you want us to install an air purifier or need help controlling relative humidity, you’ll love our dedication to customer satisfaction. Building managers love us because we make HVAC repairs, installation, and maintenance stress-free.

Schedule service by calling 615-802-COOL (2665).


Frequently Asked Questions

If you still have questions about why a building owner should improve the air quality in an office space, consider the answers to the topic’s most common questions we’ve provided below.

Does Poor Indoor Air Quality Violate OSHA Standards?

Poor indoor air quality can violate the Occupational Safety and Health Administration standards if the particulate matter reaches 500 parts per million. OSHA and the Environmental Protection Agency require office buildings to maintain these standards.

What Are the Major Indoor Pollutants?

Major indoor pollutants include secondhand smoke, building materials like asbestos, gaseous pollutants from gas stoves, and particulate matter like dust mites.

Why Should Building Management Improve Air Quality in Commercial Buildings?

Building management should improve air quality in commercial buildings to keep workers healthy, satisfied, and productive.

How To Maximize Energy Efficiency in Your Commercial HVAC System

Forward-thinking business owners see how valuable it is to improve energy efficiency in building infrastructure, but where do they start when assessing their organization’s energy usage? Saving energy can be a monumental task, but think of it as baby steps to achieve an energy-efficient building. If you’re willing to steadily reach new goals each year, each of those energy savings will add up – including in your commercial HVAC system.

Below, Interstate AC outlines ways to reduce energy consumption in your commercial property.

Energy-Efficient Buildings Use Insulation for Consistent HVAC Cost Savings

While not everyone can tear down and rebuild existing buildings, you can use less energy with some environmental design enhancements. First, seal hidden air leaks that allow conditioned air to escape your building. These small openings and drafts can seriously increase your power bill.

Large industrial plants are particularly susceptible to forgotten drafty areas because of the vast square footage. Installing energy-efficient windows and quality insulation helps. Any energy-efficient building keeps warmed or cooled air safely indoors.

A Conscious Business Owner Pays HVAC Maintenance Costs for Lower Energy Consumption

Feeling overwhelmed by heating and cooling costs? Some business owners might take that as an excuse to skimp on annual maintenance, but putting off tune-ups for just a few years instantly makes your commercial building less energy-efficient. Filter changes, maintenance sessions, and prompt HVAC fixes also lower your building’s energy use while ensuring healthier indoor air quality.

After all, well-oiled, regularly serviced HVAC equipment is the key to an energy-efficient building. Tactics like space heating to enhance climate control work, too.

An Energy-Efficient Building Integrates Renewable Energy Sources to Lower Its Daily Energy Usage

Have you thought about harnessing the sun’s energy and other natural resources in your quest for commercial energy savings? The industrial sector reaps significant benefits from renewable energy choices while helping the earth.

Why not consider solar panels for a more energy-efficient building with lower carbon emissions, particularly if your factory or warehouse has a flat roof?

Commercial Building Owners Improve Energy Efficiency in Building HVAC Infrastructure With More Efficient Equipment

Pioneering green buildings starts by phasing out incandescent bulbs in favor of light bulbs that conserve more energy. The Department of Energy confirms that traditional electrical light can increase a building’s energy bills by up to 30%. Alternatives like LED lighting, on the other hand, can reduce energy use by a whopping 75%.

Save money, and spring for energy-efficient, sustainable lighting designs across all your commercial buildings!

Tips To Outfit Commercial Buildings With Quality, Modern Heating and Cooling Systems

Is your commercial heating and cooling system relentlessly wearing down your allocated repair budget? Newer, more energy-efficient systems guzzle fewer resources and run much better than old HVACs.

Your business’s outdated mechanical systems depend on a constant supply of natural gas or electricity to cool and heat well, and this process emits carbon dioxide. This gas traps more heat in the earth’s atmosphere, and that means your business is directly contributing to the Greenhouse Effect.

Stay calm; learning to improve energy efficiency in building-related processes helps. For example, an energy-efficient building harnesses improvements like:

  • Solid ductwork: Brittle, aging ducts puncture and fracture. You might not find out about these tiny openings for months or years after they’ve let out conditioned air that should be going through your building’s vents.
  • Smart thermostats: Control the temperature from any location on-site or away from the office. That way, the thermostat setting keeps everyone on-site comfortable without running up the bills.
  • Newer equipment: How old is your current system? Commercial HVACs can last 15 to 20 years with diligent maintenance and lessen your business’s carbon footprint. More energy-efficient equipment choices include heat pumps and ductless systems, so be sure to ask about them.

Modern energy recovery ventilation enhancements also help to balance air input and output, optimizing energy usage and air quality.

Where Should You Begin in Your Building or HVAC?

An energy-efficient building takes time. Start with an energy audit, which is like a blueprint that reveals:

  • Utility bill-spiking factors
  • Power-guzzling building areas or appliances
  • Where energy changes are possible, like new heating and cooling equipment

Strategize step-by-step changes to your building using your audit results as a reference. If that assessment recommends new commercial HVAC equipment, turn to Interstate AC for business-focused HVAC expertise.

Interstate AC Can Install the HVAC Industry’s Most Cost-Effective Technologies in Your Business

Our technicians do more than install basic heating and cooling systems or energy-efficient lighting – we’re here to help your business save energy costs, money, and the earth. When you enhance your building’s energy efficiency, you show your employees, customers, and investors that you care about the future you’re all building.

Your commercial venture can always improve energy efficiency in building strategies for a brighter tomorrow. Start maximizing energy savings today – call 615-802-COOL (2665) to schedule a consultation with the Interstate AC team!


FAQs

Here’s what our commercial clients ask about maximizing a building’s efficiency.

Do HVAC Systems Create Greenhouse Gas Emissions?

Yes, HVAC systems create greenhouse gas emissions, especially older models powered by natural gas created from fossil fuels. Reduced energy consumption brings related energy costs in line, thanks to an HVAC upgrade.

How Much Money Do Commercial Buildings Save With HVAC Energy Performance Improvements?

The Department of Energy reports that energy-efficient commercial buildings can save up to 30% (because inefficient buildings waste up to 30% of their energy intake).

What Are Small Things My Business Can Do to Combat Climate Change?

Small things your business can do to combat climate change include:

  • Audit energy habits
  • Calculate your business’s carbon footprint
  • Reduce your building’s monthly energy consumption
  • Systematically install energy-efficient lighting

Also, consider utilizing renewable energy sources.

When You Improve Building Energy Efficiency, Are There Environmental Benefits?

Yes, when you improve energy efficiency in building-related processes, you facilitate energy and environmental design changes that benefit the world. For instance, curbing energy use translates to:

  • Less oil extraction
  • Eased electrical demands
  • The least possible carbon output for your facility

Commercial HVAC equipment that needs less energy also elevates these efforts – often considerably, if you consider the daily gains.

How To Choose the Right HVAC System for a Large Space

Maintaining a commercial building is complex, and business owners often need professional advice on how to choose the right HVAC systems for a large space.

Although every project is different, maximizing comfort, energy efficiency, and reliability for your business means looking at multiple elements.

Size Matters

The unit size is the most important consideration when selecting a cooling and heating system for your commercial space, but bigger isn’t always better.

In addition to considering the square footage of the space when trying to choose the right HVAC system for a large space, evaluate the layout, insulation, ceiling height, sun exposure, and number of people working in the space all influence the ideal unit size.

To calculate the required cooling capacity in BTUs (British thermal units), divide the square footage by 400, then multiply by 12,000 to get the minimum cooling capacity; you’ll need to add additional capacity for factors like windows, high ceilings, and workers.

Additional Factors to Consider

Climate

Not all HVAC systems work the same in every environment. Extreme temperatures in either direction can affect system efficiency and capacity.

Indoor Air Quality Needs

HVAC directly influences indoor air quality, including humidity, ventilation, and air filtration, so you need to choose a system that creates a comfortable and healthy working environment.

Energy Efficiency

The Seasonal Energy Efficiency Ratio (SEER) requirements apply to commercial systems. The higher the SEER rating, the more efficient the system and the less it will cost to run.

Regulations

In addition to SEER ratings, your HVAC system must comply with applicable government regulations.

Get Help With Commercial HVAC

When you need professional, experienced insights into how to choose the right HVAC system for a large space, get in touch with Interstate AC at (615) 802-COOL (2665).

We’re the most trusted commercial HVAC experts in Middle Tennessee and have the expertise to ensure your business stays comfortable year-round.

Frequently Asked Questions

What Happens If the HVAC System is Oversized?

An oversized HVAC system will use more energy, but won’t provide the most reliable or even cooling. Excess capacity will cause the unit to short-cycle and turn off before it fully warms or cools the space, resulting in uncomfortable temperatures and excess humidity.

How Long Does a Commercial HVAC System Last?

The average system lasts 12 to 15 years when you choose the right HVAC system for a large space and invest in regular maintenance.

What Are the Most Common Air Conditioning Systems Used in Large Buildings?

Central air conditioning is the most common system for large buildings. Very large industrial buildings typically use chillers, which distribute cooled water or liquids via a series of coils throughout the building.

Is Your Thermostat the Cause of Your Heating Problem?

It’s cold and your heat doesn’t seem to be working!  Did you know your thermostat could be the cause?  Here are some troubleshooting tips and fixes you may be able to do yourself, to save time and money.

  • Power:  Is the display on your thermostat blank? It could be there is no power to the thermostat.  A tripped circuit breaker or fuse could be the problem, possibly caused by a power outage, power surge, lightning strike, or storm. Reset the tripped circuit breaker or replace the fuse. Make sure all the wires going to the thermostat are connected and not loose.
  • Batteries: If your thermostat is battery-powered, or relies on battery for backup power in case of a power outage, it could be that the battery needs replacing.  If you have a programmable thermostat, and had a recent power outage, it could be that without a functioning battery backup, all of your settings have been wiped out by the power outage and the thermostat reverted to its default program. You’ll need to insert a new battery, then re-enter your settings.
  • Date/Time: Check that the thermostat is set to the correct day and time, including the AM or PM designation.  One customer bought a programmable thermostat to save money, with the intent to have the heat backed down while the customer was away at work, and have the heat cranked up at night when the customer was home.  But when the customer started freezing at night, they mistakenly thought something was wrong with their heat, when the real culprit was they had the AM/PM designation backwards on their thermostat!

Here’s a tip: If you’ve lost your owner’s manual for your thermostat, most major-brand manuals can be found on the web — just go to the manufacturer’s web site.

  • Mode: Check that the thermostat is in heat mode. This switch can easily get accidentally bumped into the off or cool position. If it’s a programmable thermostat, switch it to manual control and set it for 5 degrees above the room temperature, and wait to see if the heat cycles on.  If it does not, then the problem may be at the furnace.

If none of these DIY fixes addresses your problem, and you live in the Nashville area, give us a call at 615-802-2665. We’re here to help!

Single vs Variable-Speed Blowers: Does it Matter?

Single-Speed Blowers

If your furnace or heat pump is more than 10 years old, it likely has a single-speed air handler (blower).  Single-speed blowers work like a light switch: they’re either on (blowing at maximum speed) or off (not blowing).  Single-speed units have been the standard, most affordable option, but they have some disadvantages.

Disadvantages of Single-Speed Blowers

  • It uses more electricity.
  • It causes large swings in temperature: from too cold to too hot. And because the air does not circulate at all when the blower switches off, the heated air rises to the ceiling.  This is why we recommend running ceiling fans on low, even in the winter.
  • When the blower comes on, you hear a loud rush of air and it can be noisy.  Plus, the surge of electricity it consumes may cause your lights to dim for a second each time it kicks on.
  • Because there are periods when the blower is not blowing at all, humidity control suffers.  In the summer, the air only moves through the de-humidifier when the blower is on (actively blowing), and humidity builds up when the blower cycles off.
  • The constant cycling on and off makes for more wear-and-tear on all the components, and could cause the system to breakdown sooner.

Variable-Speed Blowers

Over the last 10 years, technology has continued to advance, making variable-speed motors less complex, more reliable, more responsive, and more commonplace on HVAC units.  A variable-speed blower runs at different speeds to precisely control the flow of heated or cooled air throughout your home.

On a mild day, the blower runs slower.  The AC or heat runs in longer cycles so the indoor temperature does not spike up and down, thus making overall efficiency higher.  Variable-speed blowers offer the highest efficiency and performance.  The AFUE (annual fuel utilization efficiency) of a furnace with a variable-speed blower may be as high as 95%.

Advantages of Variable-Speed Blowers

  • Sensitivity: Since it operates at different speeds, it can adapt to the unique airflow requirements of a home at any given point in time.  For example, it can compensate for the amount of dirt in the air filter or blocked vents by increasing the fan speed.
  • Efficiency: It always operates at the lowest speed required, thus it saves electricity, and is less costly to operate. This increases efficiency and allows the unit to use about two-thirds less electricity. This results in a 40% year-round energy savings (about 75% of that savings is in heating).
  • Quieter: Whether running AC or heat, the unit is quieter because most of the time it is not operating at full speed. Plus, it gradually ramps up to full-speed when needed, eliminating the sudden noisy blast of air common with single-speed units.
  • Comfort:  A variable-speed unit will keep you more comfortable because it keeps the temperatures more constant – eliminating the wide swings of too cold and too hot which results from single-speed systems cycling on and off.
  • Air Circulation:  It circulates air continuously, with fewer “off” cycles, allowing more air mixing and preventing the trapping of hot air near the ceiling.  In the summer, it allows the air-conditioner to remove more moisture from the air, decreasing humidity to make you feel more comfortable.
  • Air Quality: Because your air filter is only filtering particles when the air is moving through it, having a variable-speed blower means more air will be filtered.  This means leaving fewer particles to be deposited in your living space, which may translate into fewer allergens and less dust.
  • Longer Life: Since a variable-speed blower is not having to constantly cycle on and off, there is less wear-and-tear and thus fewer breakdowns and a longer operating life for the system.
  • Payback: Although the tax credits have expired for buying a high-efficiency variable speed HVAC unit, it is still a wise purchase.  This is because the reduced costs (less electricity consumed, fewer breakdowns) during operation mean you’ll get a return on investment (ROI) in just 4-5 years.

Does it Really Matter?

Bob, a homeowner who recently had a variable-speed HVAC system installed, says “There is a big difference… it does a better job of keeping warm and even throughout the room.”  His old system was quite noisy, so that has been a big improvement, too.  One feature Bob likes about his furnace now is that “it waits until the furnace is warm before it starts to blow hard.”

What System is Right for You?

If you live in the Nashville TN area and need help deciding between the various types of systems on the market and determining which one is best for your needs, give us a call at (615) 832-8500.

Which HVAC Brand is Best?

We’ve been in the business almost 20 years now and have installed and serviced a variety of HVAC units. We are not paid by manufacturers to promote their brand(s); instead, we recommend brands based on our vast experience and our customer’s individual needs.  If the customer has a preference for a certain brand, we do our best to provide it.  But, if you really want to know which brand is best, here are the facts:

The Dirty Little Secret

When you look beyond the label slapped on the outside of the unit, you’ll see that most of the internal components are the same.  There are about six HVAC equipment manufacturers in the U.S. who make about 150 different brand names.  Many of them use the same internal components and are produced on the same assembly line in the same factory.  Goodman and Amana are made in the same factory, yet Amana typically costs more.  Carrier, Bryant, Payne, Tempstar, and Day and Night are made in the same factory, yet Carrier has more name recognition due to more advertising.  York and Luxaire are both owned by Johnson Controls.  There’s almost no difference between Trane and American Standard.  Lennox, Ducane, and Concord are all made by Lennox.  Even less obvious is that some of the internal components of all brands are made by just a handful of third-party companies, making many components interchangeable between brands.  With so much the same, what’s the real differentiator?

The Real Differentiator

Unlike many other products, when you purchase an HVAC system, much of the design and engineering occurs on-site (at your home).  Each home is different and presents different challenges with ductwork, physical location, clearances, etc.  No brand, no matter how much it cost and its reputation, will perform reliably if not installed and maintained correctly.

The overwhelming majority of HVAC failures are the result of improper installation or maintenance.  In fact, a good percentage of our business comes from people who hired the cheapest contractor to install their unit, or who think they saved money by not having regular spring and fall maintenance.  There’s a proper way to install and maintain an HVAC unit and it’s worth paying for that expertise, because going with the lowest bid can often cost you later.

Just as not all doctors, mechanics, or hair stylists are the same, neither are all HVAC contractors.  Sometimes, it’s worth going a bit out of your way, or waiting an extra day for an appointment to get a professional you trust.

Pitfalls to Watch For

Watch out for contractors who:

  • will offer you a great deal on a discontinued model,
  • do not provide continuing education for their technicians or use transient laborers,
  • don’t inspect your existing ductwork (if it’s a replacement) or will quote you a price over the phone,
  • won’t be around to honor the service agreement you purchased.

At Interstate AC Service, we use only qualified, licensed HVAC service technicians, we never use undocumented workers, we provide continuing education to our technicians, our technicians are not paid on commission, and we are committed to customer service.

Buyer Beware!

Don’t be fooled by a system that says it will last for 20 years.  Not without regular maintenance it won’t!   If you neglect your system, it won’t matter what brand you buy!  Here are some other things to watch for:

  1. Proprietary Design:  With some brands, the parts may be proprietary and not interchangeable.  So, there may be longer wait times for replacement parts because you can only get them from one manufacturer, and it may make the unit more expensive or difficult to maintain over time.
  2. Specifications:  When comparing units, be sure you’re comparing apples to apples.  Comparing a SEER 14 unit to a SEER 21 unit is not valid, because each is built to different specifications and their cost to operate varies widely.  Be aware that not all manufacturers offer units with the same SEER rating (Don’t know what a SEER is? Check out our post What’s Your SEER?).
  3. Features:  Look at the extras that may be rolled into the price.  Is part of what you’re paying for the extended warranty?  A bigger thermostat screen might not be worth paying extra for, but a quieter unit may be… only YOU can determine what features are of value to YOU.
  4. Reviews:  Few people will go online to write something positive about an air conditioner, heat pump, or furnace.  It’s only when it doesn’t work that people typically feel compelled to write a review.  Keep in mind when reading reviews, you cannot know reliably what the circumstances were.  Most failures are not due to the workmanship inside the unit but to the faulty installation and maintenance.  Did the installer install a mismatched AC condenser and evaporator?  Was the unit maintained under a service contract the entire time?  Take the reviews online with a grain of salt!
  5. Allegiances: Use an impartial contractor – one that is licensed to install and service all major brands.  A “factory-authorized dealer” for a single brand can only offer you the prices and features of that brand, even if that might not be best for your needs.  Not having a vested interest in one particular brand means you’ll have more options. [Note: Interstate AC Service is licensed to install and service all major brands – both residential and commercial.]

Bottom Line

The most important aspect of your HVAC system is not the brand you choose, but the contractor!  Except for minor differences, all brands are fairly comparable, but it’s the installation and service that matters.  Unfortunately, buying a “top” brand (one you’ve heard of or has good reviews) doesn’t matter much when it comes to HVAC units.

If you live in the Nashville or surrounding area, and need help with an HVAC issue at your home or business, know you can call on Interstate AC service at (615) 832-8500.  We’ll provide unbiased, professional service you can trust. We never forget we’re here for you!

Be Pro-Active With an Off-Season Replacement

It’s no surprise that the demand for air-conditioners is highest in the summer, and the demand for furnaces is highest in the winter.  If you have an old or failing HVAC system, it will likely go out when it is stressed the most – on the coldest or hottest day of the year – when the demand is greatest.  Well, that’s when everyone else is calling for service, too!  So you may find, no matter what HVAC company you call, they won’t be able to get to you right away.  [If you’ve ever had the unfortunate experience of needing a tow truck after slipping on snowy/icy roads, you know what I mean!]

Be Pro-Active!

The best time to get a new furnace is in the spring and summer, and the best time to get a new air-conditioner is in the fall and winter.  Of course, if you’re replacing an entire system – like a heat-pump that is used for both heat and air – then the best time is during the “in-between” seasons – spring and fall – when systems are less stressed and the HVAC companies are not overrun with service calls.

Benefits of Being Pro-Active

Being pro-active has many added benefits:

  1. You may get off-season discounts or manufacturers’ rebates.  Plus, you’ll have time to get a professional analysis done of your home, get 2 or 3 quotes, and do research on the companies.  You won’t be in a “desperate” situation: like having no air conditioning on a day with 90+ degree temperatures and 90% humidity!
  2. It’s less disruptive for the homeowner.  You can schedule the install at a convenient time for you, and you won’t have to worry about being down (without heat or air) when it’s most needed!  Face it: it’s much less of an “inconvenience” to be without heat or air (while your old system is being removed and your new system is being installed) when it’s not freezing cold or blazing hot out!
  3. It gives you time to research the various kinds of systems, and the various features, to find the one best for you.  When it’s 7 degrees out and you’ve been without heat for 12 hours, you’re not going to be in much of a “shopping” mood and may wind up getting whatever is readily available and can be installed quickly, rather than the best system to meet your needs.

Think Spring!

If you know your HVAC system won’t stand another winter or summer… don’t just let it slip your mind as we approach spring.  That’s when you SHOULD be thinking: now’s the best time to replace it!  Remember, the best time to buy a new system is before your existing system fails, and before the extreme hot or cold weather arrives.

If you need heating or air-conditioning service, no matter the season, call on Interstate AC Service at 615-802-2665.  We’re here to provide all of Nashville and surrounding areas with professional , dependable HVAC system service and installation.