Comfort Control

Comfort Control Heating and Air Conditioning, Inc.

Service Pledges

Air Conditioning

Unit Disconnect

Disconnects are electrical safety features that ensure the heating and cooling system is completely shut off during servicing. A number of factors can compromise the disconnect and the wires connecting it to the rest of the system, including water, rust, overheating and general wear. The condition of the disconnect determines its effectiveness as a safety measure, consequently any deterioration represents a danger in itself. Moreover, decay of the disconnect may lead to blown fuses.

Pledge: We will inspect the disconnect.

Condenser Coil Cleaning

Over time, the condenser coils of your air conditioner accumulate dirt and debris. As the coils get dirty, they lose the ability to transfer heat effectively. Your cooling system then has to work harder, raising the refrigerant pressure higher. You may notice reduced cooling capacity and an increase your utility bill.

Pledge: We will clean the condenser coil fins to restore their efficacy.

Evaporator Coil Cleaning

Evaporator coils become dirty because air filters only collect a portion of the particles in the air. Even a small amount of dirt can reduce air flow, leading to an increase in frequency and duration of system operation and noticeable decrease in cooling capacity. The effect of this diminished efficacy will be higher utility bills. This is also a major cause of compressor failure. We recommend that customers replace or wash properly sized air filters every month.

Pledge: We will inspect and clean evaporator coils to restore their efficacy.

Blower Wheels

However effective your air filter, dust and grime end up accumulating on the blower wheels of the air conditioning system. A telltale sign of dirty blower wheels is reduced airflow and shorter cycling times – the system turns on and off with increased frequency. The system continues to push air through, but it has to work harder and longer to do it. The result is decreased efficiency, higher operating costs and a greater strain on the system; one possible outcome is compressor failure.

Pledge: We will inspect and clean the blower wheels

Refrigerant Charge

To be properly calibrated, the refrigerant charge of your home’s air conditioning system must remain in a “goldilocks zone” – neither too low, nor too high, but just right. A low or high refrigerant charge reduces the capacity and efficiency of the system, leads to increased operating costs, and can cause compressor damage and shutdown. Our technicians assess the question of the system’s refrigerant charge by comparing temperature and pressure readings in a two-pronged approach: measuring the super-heat of the evaporator and the sub-cooling of the condenser.

Pledge: We will gauge the refrigerant charge using super-heat and sub-cooling measurements, and optimize the charge accordingly.

Heat Pumps

Defrost Cycle Timing

The defrost timer regulates how often your heat pump stops heating the inside of the home in order to clear its outside parts of any ice that may be forming. Although defrost cycles are necessary for the heat pump to operate at peak condition and efficiency, if the timer triggers the defrost cycles too often or for too long, you will notice adverse effects: a reduction in the heating of your home and increased heating costs due to the inefficiency of the system. Over time, an improperly calibrated defrost timer can shorten the compressor’s life.

Pledge: We time the heat pump’s defrost cycles to make sure they conform to specifications.

Auxiliary Heat Strips

Under particularly cold conditions, the heat pump may struggle to raise the temperature to the level you have set in the thermostat. Auxiliary heat strips provide increased heating when the system requires a boost in capacity. Being a back-up contingency, the heat strips do not activate unless such acute conditions trigger them, but when they do come online you are thankful you have a second line of defense against the cold.

Pledge: We ensure that the auxiliary heat strips will activate when the system needs supplemental heating to keep you comfortable.

Reversing Valve

The direction of refrigerant flow in your heat pump determines whether your system puts out heating or cooling, according to how you’ve set the thermostat. The reversing valve functions as the master switch, in a sense, governing the direction of the flow and thus whether you will feel a change in temperature matching your expectations. If the reversing valve wears out, it can cause loss of heat – to the point of even further cooling an already cold room – and waste energy.

Pledge: We will verify that the reversing valve directs heat flow correctly and at peak efficiency.

Gas Heating Systems

Panels

Gas heating systems contain multiple panels, and not all of them may be visible on the outside or the front – some models nest subordinate panels within the compartment that the main access panel services, and some models compound further panels on the back or side of the unit body. All panels serve as a barrier to keep the internal components in and external factors out. Wherever they may be, loose panels present the dual drawbacks of loss in efficiency for the system and exposure to danger for your home’s occupants.

Pledge: We will inspect and secure all panels.

Carbon Monoxide Safety Check

The heat exchanger of your gas heating system is what keeps the combustion area separate from the heated air that circulates through your home. If a crack were to develop in the heat exchanger, carbon monoxide could escape into the air that you and your family end up breathing. Since carbon monoxide is a colorless, odorless, tasteless, poisonous gas and exposure to it can cause illness or even death, we take the integrity of the heat exchanger seriously and test it for leaks.

Pledge: We will check to make sure carbon monoxide levels are safe within the system.

Burners

The combustion of gas in the burners provides heating to the system. Over time, soot builds up on the burners, effectively insulating more and more of the heat from circulation. The reduction in heat supplied to the exchanger leads to an increase in fuel consumption to compensate. Consequently the efficiency of the system drops and your utility bill increases. Cleaning the soot off of the burners removes the insulating effect and restores their output to peak capacity.

Pledge: We will clean the burners of soot build-up.

Air Filter

The condition of the air filter factors highly in the peak operation of your gas heating system, and is one of the first and most frequently accessed areas for cleaning. If the air filter is dirty, the system not only has to work harder to circulate air through your vents, but you and your family may also suffer allergies and respiratory ailments due to breathing poor quality air. Most of the time, washing the air filter is all we need to do and it works like new; eventually, the air filter will degrade and we will replace it with a new one.

Pledge: We will wash or replace the air filter.

Thermocouple

A fundamental safety device of the gas heating system is the thermocouple. Mounted directly in the pilot flame, the thermocouple is an electric sensor that detects heat and controls the gas valve. If the pilot light is on, the thermocouple maintains the fuel supply open, but if the pilot light is out, the device senses the lack of flame and switches the gas valve closed. Consequently, the function of the thermocouple is to determine whether it is safe to keep the gas flowing through the system, or not.

Pledge: We will test the thermocouple for proper responsiveness to and, if necessary, replace it.