IERNA's Heating & Cooling Blog : Posts Tagged ‘Northdale’

When Does AC Replacement Make More Sense Than Repairs?

Monday, June 6th, 2016

As summer quickly approaches, we don’t need to be reminded of how hot it will get. With temperatures already increasing, you may be faced with the tough decision about what to do with an air conditioning system that’s been troubling you since the last cooling season.

An AC system isn’t something you can fix on your own. Doing so can actually cause additional damage to your system. Rather, you’ll want to rely on a professional technician’s recommendation and your own budget to decide whether to repair an aging system or replace it. But how do you know for sure which is right?

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AC Problems: Condensate Drain Troubleshooting

Monday, April 25th, 2016

Are you aware of the role that the condensate drain plays in your air conditioning system? Most homeowners aren’t, however the condensate drain is a vital component to your air conditioner. Your AC is able to cool your house by removing the moisture out of the air. That moisture has to have somewhere to go, and this is where the condensate drain comes in.

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HVAC Question: What is a Heat Pump Reversing Valve?

Monday, July 23rd, 2012

Did you know that heat pumps can be used for both heating and cooling in your Tampa home? The reversing valve is what makes this possible, read on to learn more!

In General

Functioning on the same principle as refrigerators, the heat pump uses a liquid to absorb heat as it turns into a gas and release heat as it returns to a liquid state. During the summer, the heat pump operates as a standard central air conditioner, removing heat from the house and venting it to the outside.

In the winter, the heat pump reverses this process, extracting heat from the cold air outside and releasing it inside the house. The heat pump is very efficient when the outside temperature is around 45 degrees Fahrenheit to 50 degrees Fahrenheit, but it becomes less efficient as the temperature drops.

The Heart of the Matter

The reversing valve in the heat pump switches the process from absorbing heat from the inside to evacuate outdoors like an air conditioner to extracting heat from cold temperatures outside and redistributing it indoors.  The thermal energy at play is the natural force of heat to move toward cooler temperatures, releasing energy in the shift.  Heat pumps take care of both and the reversing valve controls the direction of the flow.

The reversing valve has two states of operation: relaxed and energized.  In the relaxed state, the heat pump can be programmed to introduce either heated or cooled temperatures into the conditioned space, depending on the direction of the flow of refrigerant through the closed loop.

By applying a 24 volt charge of AC current (a low voltage typically used in HVAC systems), the valve becomes energized and reverses the flow, producing the opposite conditioning.  The reversing valve may be driven by the heat pump through the use of a control board or directly by a thermostat.

Will a Heat Pump Work in My Home?

To determine if a heat pump is right for the heating and cooling of your Tampa home, call Ierna’s Heating & Cooling. We will determine the needs of your home and which Tampa HVAC system will work best for you and your family!

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