Showing posts with label gmc. Show all posts
Showing posts with label gmc. Show all posts

Thursday, April 11, 2013

Pricing Policy

We understand that no one is comfortable hiring a company by the hour. After all, we are consumers too! That is why, when you do business with GMC Air Conditioning Services, you will be quoted a flat price for your repair, and that is all you will pay, regardless of how long the job takes. We charge a small diagnostic fee in order to determine the problem with your A/C system and then we let you know exactly what the cost to repair will be. It is that simple, no hidden charges!

Our list of services include...
  • Air Conditioning Replacements. 
  • Duct Repair. 
  • Indoor Air Quality Solutions. 
  • 24 Hour Emergency Service. 
  • Fast Reliable repairs. 
  • Preventative Maintenance Agreements. 
  • Free Estimates. 
  • Free 2nd opinion of your cooling problems. 
Let us worry about your air conditioning, so you don't have to!

Friday, March 15, 2013

How Central Air Conditioning Works


Air conditioners and refrigerators work the same way. Instead of cooling just the small, insulated space inside of a refrigerator, an air conditioner cools a room, a whole house, or an entire business.

Air conditioners use chemicals that easily convert from a gas to a liquid and back again. This chemical is used to transfer heat from the air inside of a home to the outside air.

The machine has three main parts. They are a compressor, a condenser and an evaporator. The compressor and condenser are usually located on the outside air portion of the air conditioner. The evaporator is located on the inside the house, sometimes as part of a furnace. That's the part that heats your house.

The working fluid arrives at the compressor as a cool, low-pressure gas. The compressor squeezes the fluid. This packs the molecule of the fluid closer together. The closer the molecules are together, the higher its energy and its temperature.

The working fluid leaves the compressor as a hot, high pressure gas and flows into the condenser. If you looked at the air conditioner part outside a house, look for the part that has metal fins all around. The fins act just like a radiator in a car and helps the heat go away, or dissipate, more quickly.

When the working fluid leaves the condenser, its temperature is much cooler and it has changed from a gas to a liquid under high pressure. The liquid goes into the evaporator through a very tiny, narrow hole. On the other side, the liquid's pressure drops. When it does it begins to evaporate into a gas.

As the liquid changes to gas and evaporates, it extracts heat from the air around it. The heat in the air is needed to separate the molecules of the fluid from a liquid to a gas.

The evaporator also has metal fins to help in exchange the thermal energy with the surrounding air.

By the time the working fluid leaves the evaporator, it is a cool, low pressure gas. It then returns to the compressor to begin its trip all over again.

Connected to the evaporator is a fan that circulates the air inside the house to blow across the evaporator fins. Hot air is lighter than cold air, so the hot air in the room rises to the top of a room.

There is a vent there where air is sucked into the air conditioner and goes down ducts. The hot air is used to cool the gas in the evaporator. As the heat is removed from the air, the air is cooled. It is then blown into the house through other ducts usually at the floor level.

This continues over and over and over until the room reaches the temperature you want the room cooled to. The thermostat senses that the temperature has reached the right setting and turns off the air conditioner. As the room warms up, the thermostat turns the air conditioner back on until the room reaches the temperature.

Source: Energy Quest

Wednesday, March 6, 2013

Split System

A split system is an HVAC system in which some components are located inside the structure of the house and some are located outside. Split systems should be matched for optimal efficiency.

Friday, February 22, 2013

Dust and Your AC


If dust in your air conditioner made it more difficult and expensive to cool your home last summer, call an HVAC contractor to clean it for you. Although you can remove some of the dust yourself, you’ll need a technician who has the tools and training to access the parts that you can’t.

Dust is a major cause of air conditioning inefficiency and potentially failure. You can eliminate a good deal of dust in your air conditioner by keeping the filter clean for the indoor furnace or air handler. When dust builds on the evaporator coil, it slows the process of extracting heat from the indoor air, and may eventually cause the outdoor compressor to overheat and break. The dust also slows the passage of air through the filter, retarding the cooling process.

The other place where dust collects is in your outdoor compressor. Once you’ve removed all the vegetative debris around the unit, try hosing off the fins and coils with a light to medium spray. This can dislodge some of the dust that slows the cooling of the warmed refrigerant coming from inside.

An HVAC technician goes more deeply into the system by cleaning the outdoor coil and the electrical components. Dust impedes the flow of electricity through the wiring, interfering with the smooth operation of the appliance. The technician uses pH balanced cleaners to remove all the dirt and dust from the compressor’s coil, as well, increasing the efficiency of your A/C.

He also cleans the evaporator coil indoors and measures the amount of refrigerant in your system. The dust that collects outdoors can cause tiny leaks in the coils and connectors. If the refrigerant is low, the technician looks for the leaks and repairs or replaces the faulty parts, and refills your system to the manufacturer’s specifications.

Wednesday, January 16, 2013

Filter Importance

One of the easiest air conditioning maintenance steps is to be sure that you use a high quality air filter. Air filter replacement is the most commonly needed air conditioning maintenance service.

Replacing the air filter monthly protects the mechanical components of your air conditioning system from dirty buildup. A dirty air filter also can impede airflow and force your air conditioning system to work harder and less efficiently to cool your home. A poorly maintained AC System may fail due to abnormal wear and tear. Dirt and dust buildup may cause you to need an air conditioner repair visit or may lead to expensive parts failures or AC Unit replacement. Our air conditioning specialists determine the condition of your AC System and thoroughly maintain it to help preserve comfort to your home.

Source: San Francisco Chronicle

Friday, January 11, 2013

Maintenance Checklist


Maintain your equipment to prevent future problems and unwanted costs. Keep your cooling and heating system at peak performance by having a contractor do annual pre-season check-ups. Contractors get busy once summer and winter come, so it's best to check the cooling system in the spring and the heating system in the fall. To remember, you might plan the check-ups around the time changes in the spring and fall.

A typical maintenance check-up should include the following.
  • Check thermostat settings to ensure the cooling and heating system keeps you comfortable when you are home and saves energy while you are away.
  • Tighten all electrical connections and measure voltage and current on motors. Faulty electrical connections can cause unsafe operation of your system and reduce the life of major components.
  • Lubricate all moving parts. Parts that lack lubrication cause friction in motors and increases the amount of electricity you use.
  • Check and inspect the condensate drain in your central air conditioner, furnace and/or heat pump (when in cooling mode). A plugged drain can cause water damage in the house and affect indoor humidity levels.
  • Check controls of the system to ensure proper and safe operation. Check the starting cycle of the equipment to assure the system starts, operates, and shuts off properly.
Cooling Specific
  • Clean evaporator and condenser air conditioning coils. Dirty coils reduce the system's ability to cool your home and cause the system to run longer, increasing energy costs and reducing the life of the equipment.
  • Check your central air conditioner's refrigerant level and adjust if necessary. Too much or too little refrigerant will make your system less efficient increasing energy costs and reducing the life of the equipment.
  • Clean and adjust blower components to provide proper system airflow for greater comfort levels. Airflow problems can reduce your system's efficiency by up to 15 percent.
Heating Specific
  • Check all gas (or oil) connections, gas pressure, burner combustion and heat exchanger. Improperly operating gas (or oil) connections are a fire hazard and can contribute to health problems. A dirty burner or cracked heat exchanger causes improper burner operation. Either can cause the equipment to operate less safely and efficiently.
Actions To Do Yourself
  • Inspect, clean, or change air filters once a month in your central air conditioner, furnace, and/or heat pump. Your contractor can show you how to do this. A dirty filter can increase energy costs and damage your equipment, leading to early failure.
Source: Energy Star

Thursday, November 15, 2012

SEERs?

What are SEERS?

SEER stands for Seasonal Energy Efficiency Ratio. The SEER rating is the BTU of cooling output during its normal annual usage divided by the total electric energy input in watt hours during the same time frame.

SEERS range from 13 (lowest) and 21 (highest). The higher the SEER rating, the more energy efficient the system is.

Tuesday, October 30, 2012

Importance of Clean Air Filters


Breathing fresh, clean air is important to our health. But if we don’t make it a habit to change the filters in our home air systems, the equipment can fail, making matters much worse. Maintaining a good filter maintenance schedule protects the air we breathe and the heating and cooling equipment in our homes.

Airflow goes hand-in-hand with the efficiency of your HVAC system, and furnace filters assist with this. Dirty filters restrict the airflow, which results in higher energy and even HVAC repair costs.

With your typical off-the-shelf throwaway HVAC filter, it collects particles in the filtering medium. After it collects a certain amount of particles and is full, you simply remove it, throw it away, and replace it with another.

It is important to remember the more efficient the filter or the dirtier the air, the faster the filter is going to fill up and need to be replaced. It is recommended that HVAC air filters be checked at least every 30 days for an excessive load up of particles. If the filter looks overloaded on day 30, then you will have to change the amount of time you check the filter. On the other hand, if the filter looks particularly clean, you can relax the schedule of checking it.

Aside from keeping the air in your home clean, if your air system is working with a dirty air filter, it will slow down its efficiency as it slows down to do the same job. As a result, you’ll be paying more money to keep your home warm or cool.

And last but not least, an air filter helps keep the interior of your equipment clean. If a dirty air filter I kept in use, it could damage your equipment, or even cause it to break down entirely, which won’t do you any good.

Prevent overpaying for heating and cooling your home, or repairing the equipment by maintaining a schedule to replace your air filters.

Friday, October 19, 2012

Satisfaction Guaranteed

With GMC, your satisfaction is guaranteed!

Our goal is that you are 100% satisfied with the products and services we offer you. To this end we make the following pledge. If you are not completely satisfied with a product or service you have purchased from us, simply let us know and we will do what's necessary for you to be completely satisfied. Satisfied customers are our most important product!
Read some of our testimonials here.
Make your opinion known by posting a review for us on Angie's List or Google Plus.


Monday, October 8, 2012

Pricing Policy


We understand that no one is comfortable hiring a company by the hour. After all, we are consumers, too! That is why, when you do business with GMC Air Conditioning Services, you will be quoted a flat price for your repair, and that is all you will pay, regardless of how long the job takes. We charge a small diagnostic fee in order to determine the problem with your A/C system and then we let you know exactly what the cost to repair will be. It is that simple; no hidden charges!

Our list of services includes:
  • Air Conditioning Replacements.
  • Duct Repair.
  • Indoor Air Quality Solutions.
  • 24 Hour Emergency Service.
  • Fast Reliable repairs.
  • Preventative Maintenance Agreements.
  • Free Estimates.
  • Free 2nd opinion of your cooling problems.
Let us worry about your air conditioning, so you don't have to!

Friday, October 5, 2012

Raise the Ratings!


We provide great service and want it to show to those who do not yet know us! Help us raise our ratings on Google Plus by telling everyone the sort of service you have had with GMC Air Conditioning Services.

A short, honest recount of your most recent experience, or why you come back again and again, would be most helpful.

Leave your comments here: Google Plus by clicking the blue box that says Write a Review.

Thanks!