Why Pressure wash my condenser?

The condenser coil…

The part of the air conditioning system that removes heat. It is a coil and when dirty its ability to remove the heat is reduced.

Saves on energy: A 15 F increase in temperature will reduce cooling capacity by 10.5 percent and increase power consumption by 15 percent. At 7 cents per kilowatt there will be a waste of $260 for every 10 tons of cooling per year.

Prevents equipment failure: Dirty condensers increase operating pressures of the refrigerant system. This will eventually cause compressor failure. As the airflow is restricted the condenser fan motor works harder to move the air. This causes high amperage draw and will eventually burn out the motor.

Prevents premature equipment Replacement: as the unit runs longer to do the same amount of work it will reduces its life span.

Price: When you look at the weighted energy consumption and calculate the cost you will see in actual fact you are most likely not spending funds but rather saving and contributing to energy conservation.
 

Economizers...

What are Economizers?

This is an optional air conditioning accessory that utilizes fresh outside air during cooling requirements in mild weather (below 15 C). A controlled motorized damper simply opening and bringing in outdoor fresh air mixed to 15 C enables the user many benefits to reduce the need for mechanical cooling.

What does this do for you?

A: For every hour of operation, the electrical consumption running mechanical cooling is approximately 3000 watts per 1000 square feet (equivalent to fifty 60 watt light bulbs!). With the use of an economizer the cooling consumption is completely saved. Multiply that by your square footage and savings multiply.

B: During the economizer mode which is a fairly large time frame in B.C. the mechanical cooling is not running and therefore extends the life of the compressor, condenser fan, and all related parts. A substantial percentage of compressor failures happen due to excessive operation in mild weather. This occurs when running temperatures are below the design specification and freeze up conditions develop along with water leaks from ice melting off the cooling coil.

C: When mechanical cooling is not operating air is not moving over the condenser coil thus the amount of coil cleanings required is reduced.

D: You are bringing in large quantities of fresh air which maintains a healthy environment reducing stale air complaints, fatigues, and staff concerns.

We believe this is a win win situation and although it necessitates initial expenditures it truly is an investment in comfort and earns energy & service savings.

Backflow Prevention Valves...

"You have a device or devices similar to this in your premise. City bylaws require that backflow prevention valves be tested on an annual basis."

Backflow occurs when a contaminated source enters the water supply. The contaminated source can enter through a cross connection with the drinking water supply.
 

The water supply system is designed to ensure that water flows to your property under pressure. If this pressure is not maintained, there is a chance that water could be drawn back into the City Water mains.
 

Water pressure can be affected when:

• there is a break in the water main

• water is being pumped from the main water supply during a fire

• a customer is using water at a higher pressure than the pressure supplied by City Water (back pressure)

• heavy water usage downstream, reduces water pressure upstream.

• the water outlet on the property is higher than the water main causing a constant back pressure

There is a cross connection between the drinking water supply and a contaminated source
 

There is a risk to public health if there is a cross connection between your water and a contaminated source. If there is a pressure drop in the main, a vacuum could be created in the water supply system which, under certain conditions, creates a siphoning effect and draws liquid from a contaminated source back into the drinking water supply.

A nearby property uses the drinking water supply
 

The dangerous chemical (or contaminant), which can remain in the water main for a period of time, will then go down the water mains and into a nearby property. When this water is used for drinking, showering, household or business purposes the occupants could be seriously or fatally injured.
 

M & T Air Conditioning is an approved provider to perform cross connection control tests and this service can be included on an annual basis during your regular inspection visits.

Contact service dispatch at 604-882-4800