Common HVAC Problems Resolved

HVAC Systems present their own challenges depending on the application. Here we cover some of the common inquiries we receive from our customers. If you have a question that you would like our experts to answer, please submit it by clicking the button. We want to hear from you!

Whole HVAC Systems

How can I increase the efficiency of my HVAC system?

                Steps can be taken to increase the efficiency of your HVAC system:

  • Replace failing HVAC equipment with a highly efficient and properly sized system
  • Redesign the buildings ductwork to eliminate sharp turns and meandering runs that waste energy
  • Eliminate air leaks by sealing ductwork
  • Ensure balanced ventilation in strategic areas of your building
  • Automate and control building functions from one central location using direct digital controls

My energy bills are high and my employees are still uncomfortable, what’s happening with my system?

There are many reasons that your HVAC system isn’t performing up to standard. A combination of issues could be contributing to the high energy bills and worker discomfort including:

  • Old or improperly sized HVAC equipment
  • Building construction that is inefficient that allows for a high amount of air infiltration
  • A ventilation system that does not take into account for the heat given off of electronics like computers, industrial equipment and lighting
  • System operational inefficiencies

Why is commercial heating and cooling maintenance important?

Like with any important equipment, preventative maintenance is essential to prolonging the life and preserving the system’s efficiency of your HVAC system.

 Maintenance can also:

  • Reduce downtime associated with equipment breakdowns
  • Lower utility bills
  • Prolong the lifespan of the HVAC equipment
  • Minimize the need for repairs
  • Promote safer equipment operation     

What is SEER?

SEER is the abbreviation for seasonal energy efficiency ratio. The SEER number indicates how much energy will be required to run the system and how much it will cost each month to operate the HVAC system. It is calculated by dividing the cooling capacity of an AC unit in continuous operation by the amount of electrical power it consumes.

The numbers range from 14, which is the minimum federal regulation requirement as of January 1, 2015. Extremely efficient systems are rated in the 20s, mid-range is 18. Upgrading a SEER 10 HVAC system to an 18 SEER rating will reduce cooling costs by almost half.

For more information about SEER ratings contact an HVAC expert as ISC Sales today.

What is SRN?

SRN is the abbreviation for Sound Rating Numbers. The SRN indicates the amount of noise emitted by HVAC systems during periods of normal operation. The noise produced is measured in decibels and cooling equipment usually operates between 70 and 90 decibels.

Typical SRN ratings fall between 74 to 80 decibels. The higher the SRN rating the louder the equipment functions.  For equipment located on the roof or in a remote location, the SRN is less of a concern than equipment located by working employees where a loud system could serve as a distraction or annoyance. 

HVAC Filters

What is MERV?

MERV is the abbreviation for Minimum Efficiency Reporting Value, it is part of the ASHRAE 52.2 Test Standard that determines the ability of an air filter to remove particles of a specific size from an air stream. They range from 1 to 16; 16 being the most efficient at capturing particles.

How often should I replace the filter?

There are many factors that determine when a filter should be changed including how long the unit runs, air quality, humidity and other factors. Needs can vary greatly from application to application.

For most pleated filters, is it recommended to change them out every two to three months. Many of the filters offered by ISC Sales are reusable. For more information about our filters, please browse our products or contact an HVAC expert today.

How do I know which direction to install my filter in?

The airflow will be indicated by arrows printed on the filter. The filter should be installed with arrows facing the direction of airflow.

What is the difference between a furnace filter and an AC filter?

                Furnace filters and AC filters are the same type of product and are interchangeable.

Are your filters electrostatically charged?

Yes, we carry electrostatically charged filters to attract dust, debris and bacteria more effectively. To learn more about electrostatically charged filters contact an HVAC expert at ISC Sales today.

Panasonic Rotary AC Compressors

What is the advantage of using Panasonic AC Compressors?

Panasonic Rotary Compressors require little to no maintenance. They are built to last and are highly durable. To know why these are the best units you can get, please visit our dedicated Panasonic Rotary AC Compressors FAQ Guide.

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