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Two Speed - Tom's Take / Blog Post

TWO SPEED AIR CONDITIONING UNITS
This is the newest and best thing to hit the residential AC industry
 in my 45+
of being involved in it.

WHY
Because two speed systems run in low-speed 75% of the time,
only costing you
one half of the electric power 75% of the time.
This relates to about 40%
off your cooling bill. Combine that with
higher efficiency furnace and the savings of another 15% in the
heating mode which is normal.

This is payback for new equipment in as little as 2 to 3 years, if energy
prices stay at their current rate. We both know that's not going to
happen, no energy costs are going down.

Wholesale air-conditioning equipment cost to AC dealers has increased
30 to 40% in the last three years, with government regulations to the
new 13 seer minimum. Manufacturers are again, talking about price
increases for 2009. High-efficiency air conditioning will never be lower
to purchase than
right now.



Repair or service questions?

Contact us by email or Tel. 972-203-1317 for a friendly, free phone consult on your AC / Furnace / HVAC Repair needs (residential or commercial) in the Sunnyvale, TX, or greater Dallas / Ft. Worth area!


A two speed unit can beat the North Texas cruel temperature.
Let's assume you have the average 3 ton house. Meaning that the
A/C load for your house is a 3 ton load. If you were to buy a 4 ton
two speed A/C unit, it will operate 75% of the time in low speed.
That would be equal to about 2 ton unit, but also capable of 4 ton
load in high-speed. So on the brutal 95° -105° days you would have
an extra one ton of air conditioning capability.

On the low temperature days you would be operating in low speed
at the 2 ton load, this will remove an excessive amount of relative
humidity. Also operating at less amperage than a normal 3 ton
unit. Number one saving you electric current, number two
controlling the humidity in your home. 75° at 35% relative humidity
feels a few degrees cooler than 75° at 70° relative humidity. This
makes you feel so much more comfortable at the lower humidity
setting.

If your house is properly insulated this little trick using a two
speed unit gives you the capability of beating that average 20°
differential that air-conditioning are designed for. The standards
for air-conditioning are normally 18° to 20° on average as a
differential temperature from outdoor ambient temperatures for a
standard air-conditioner. If you upsizing to  a 4 ton two speed you
have an extra 33% above your load requirements. That extra 33%
should be able to allow you to maintain a 30° differential on those
brutal North Texas hot days.

The initial cost of a two speed unit is much higher than a standard
unit, but gives you a considerable amount of flexibility along with
energy savings 75% of the time. Being involved in air-conditioning
for over 45 years I don't know why someone didn't come up with
this sooner, including myself. This is sort of like having an air
conditioner with a supercharger on it. We all owe a vote of thanks
to the inventor of the two speed air-conditioning system.


Repair or service questions?

Contact us by email or Tel. 972-203-1317 for a friendly, free phone consult on your AC / Furnace / HVAC Repair needs (residential or commercial) in the Sunnyvale, TX, or greater Dallas / Ft. Worth area!

About Tom Durbin AC and Mechanical

Our business is located in Sunnyvale, Texas, and we service homes and businesses anywhere in the Dallas Metroplex. We are family owned and operated, have planned service agreements for both residential and commercial, service all makes and models of Air Conditioners, we not only service or repair, but can also conduct NEW installation and replacement for all major brands of air conditioning units. Even more important, we offer fair and friendly service with free consults - so ask us to help you figure out the best solution for your heating and air conditioning needs. We have certified, authorized repair staff and are a puron refrigerant specialists with 24 hour / 7 day emergency service.

AC, Furnace, HVAC Sales, Repair and Service - Dallas / Ft. Worth

From our offices in Sunnyvale, Texas, we service many communities in the greater Dallas / Ft. Worth area for their air conditioning, furnace, and HVAC repair and replacement. If you are looking for AC repair in Addison, Allen, Arlington, or Balch Spring. Furnace service in Bedford, Carrollton, Cedar Hill, Coppell, Texas, we offer some of the best rates and best AC / Furnace service available. Desoto, TX, and Duncanville AC, HVAC, Furnace repair, sales and service as well as air conditioning replacement in Euless, Fairview, Farmers Branch, Flower Mound, Forney, Frisco. In terms of Garland, Texas, we aim to be one of the air conditioning and heating service areas. Grand Prairie and Grapevine, TX, Heath and Highland Park, TX, and Hurst TX air conditioning repair and furnace repair. Irving, Lake Dallas, and Lancaster and Lewisville as well as McKinney, Mesquite, Murphy, Oak Cliff repair for major brands of air conditioner units, furnaces, and HVAC equipment. Plano Texas air conditioner repair as well as Plano furnace / HVAC sales and service. Parker, Richardson, Richland Hills, Rockwell, Rowlett, Sachse, Seagoville, University Park, Wilmer and Wylie - are all communities we service as one of the top-rated and best air conditioner replacement / repair services in Texas.