Installation

Service

Packaged Systems

​​Commercial HVAC

​​A/C Equipment - Refrigeration - Ice Machines
​Sales - Service - Installation

Condensing Equip


​​Call
​Today

​​​813-447-4445

Air Handlers

​​Residential HVAC


​​          Need Service?​
​         We have the best rates
​​          Have Questions?


          We have answers and,
Advice...is always Free 
 

Mini Split Systems

Commercial HVAC

Ice Machines

​​


















​New Equipment And Installation

​Save money by purchasing your HVAC equipment 
​through DRS Mechanical Services.
We install and service all major brands of hvac equipment, however
We recommend the following equipment brands:

-Trane Equipment
-American Standard
-Ameristar


​15 seer air handler and condenser
New copper line set, New drain line, New float switch
​New thermostat control wire, New outside line cover
​New condenser pad and airhandler stand.
​New line voltage wire, seal tite and service disconnect
​New thermostat - Your choice of:
​Digital Non-Programable, Digital Programable or
​Wifi smart thermostat









Warranty

​10 Year Parts
2 Year Service
1 Year Full System Replacement
​Lifetime Installation

​** We are proud to offer Tampa Bay the best in service and pricing








​​​Limited Time Only!
​Receive a free U.V. Light Kit with your new A/C equipment installation!
Keep your new system looking and healthy new on the inside.
Prevent mold and bacteria growth
​in your equipment and keep the air that you and
your family breath clean and healthy.
U.V. Lighting is the same technology used in the medical field
​to keep areas free of bacteria. Spending $1,200.00 on a U.V. lighting system
​for your HVAC equipment is not unheard of, howerver pricey
by our standards, we are including them as a way to say thank you
for choosing DRS Mechanical as your contractor. 

































​​













Food Service Range Hoods

Commercial Ventilation

Refrigeration

​​​U.V. Lighting

Semi-Hermetics

​​Included ​Free





















































​​













​Ice On Your Coils?

Why Ice Forms On Your A/C Equipment



Here are some reasons and explanations as to why a central air conditioner builds ice.


Air Flow Problems Caused By:


1: Dirty Filters
Yes, A dirty filter does cause indoor coils to ice up. Why? The indoor coil is about 40°F. Dirty filter prevents the air from flowing through the indoor coil and cause it to freezes up. When the ambient air which is warmer than the coil itself flows through the coil, the coils absorbes the heat from the air thereby raising the coil temperature. When there is a lack of air flow, the coil tempurature of the coil has no way to maintain the heat required to prevent the coil tempurature from dropping below freezing. when this happens, the condensation that is removed from the air buils on the coil as water but freezes on the coil as it makes its way to the drain pan. this process continues until the entire coil is then transformed into a solid block of ice.

2: Dirty evaporator coil
A dirty evaporator coil has the same reaction as a dirty filter does. A dirty evaporator is generally a result of poor maintenance and/or a lack of replacing filters in a timely fassion, installing filters incorrectly or using the wrong sized filters. There are also many cases to where the A/C equipment was installed incorrectly or there were duct leaks, which are very common causes.

3: Indoor blower not working
If you were to switch the Fan from Auto to ON, that controls the indoor blower which is what administers ambient air from the conditioned space through the filter section, accross the 40°F coil  where the air will be chilled then distributed back into the home through the supply vents. The indoor blower is designed to distribute the cold air surrounding the evaporator coil throughout the space to be conditioned.
If the blower doesn’t work, the cold air just stays there and does not move, thereby reducing the coil tempurature just as it would in a dirty coil and dirty filter situation causing ice to accumulate.



Refrigerant Problems Caused By:

1: ​Low refrigerant charge
Lack of refrigerant inside an HVAC system can cause the evaporator coil (indoor coil) to freezes up.
​Now because it would require an understanding of tempuratures and pressures, their relations to one another and some fundimental knowledge of applied refrigeration to really grasp how low refrigerant would cause and "ice up" situation, we arent going to go into detail on how this works. however, if your interested, there are plenty of videos and articles explaining the process which can be found on google.

2: Perfect or Fine Leaks
Although not common, small leaks within the evaporator coil can cause the evaporator coil to build ice around it.

3: Outdoor temperature is too low
Running your central air conditioner during low outdoor temperatures can cause indoor coil to build frost.

4: ​Low indoor ambient tempuratures
​​Especially in air handlers using a type of metering device called "a piston" or a "cap tube", operating this equipment at tempuratures "too cold" could spell problems such as avoidable down time , water damage  depending on system design and avoidable costs for repairs as operating  your equipment during an ice up can cause liquid flood back which may cause compressor failure. Prior to calling a service company, we recommend shutting your system off and sliding the fan to the on position for about and hour. In less severe cases this should be enough time to defrost the coil. After an hour, check the airflow from the supply vent, if it feels plentful and  the air being distributed feels to be at room tempurature, its most likely defrosted. At this point you may wish to try to resume operation, but raise the thermostate to operate at a higher tempurature.

Metering Device Problem:

Malfunction expansion valve
Metering device that is not providing the correct amount of refrigerant to the evaporator coil can cause the coil to ice up. These problems include but are not limited to a restriction in a cap tube system either in the cap tube itself or in the the piston or a txv that is stuck closed or is having issues with the sensing bulb. Any restriction of refrigerant at the evaporator can cause an ice up situation in and HVAC system.
Other Reason Why Central Air Conditioner Ice Up

1: Low pressure switch fail
This switch prevents equipment from operating during a low pressure situation. Since pressures and tempuratures rise and fall together, a pressure switch also protects against low ambient tempurature.  Say for example your thermostat gets stuck in cooling while your at work or on vacation. As the tempurature in the conditioned space drops, so then does the pressure in the suction side of the refrigerant circuit where the low pressure safety switch is installed. This switch will shut the system down to protect your equipment against "ice ups" and eventual compressor failure. Not all HVAC equipment have this low pressure safety switch installed, but we do recommend the use of them when possible.

2. Oversize central air conditioner
While this is not likely going to occur! It could happen. Although its not related to the topic of this section, we will mention that an oversized HVAC system may also cause mold and discomfort in a conditioned space. The primary task of any HVAC system is to dehumidify. When a system is too large it will cool too quickly thus not running long enough to dehumidify the space thereby creating cold and wet conditions in the home or business.


The cost of having ice in the indoor coil

An ice up in any HVAC equipment is a ​serious problem but unfortunately most people do not see it that way. Ice in the indoor coil means there will be liquid Freon entering the Ac compressor.
Why don’t we want liquid Freon to enter the compressor? Quite simply because a compressor is designed to compress a refrigerant from a heated gasious state into a super heated vapor. Whereas a liquid is a solid and cannot be compressed. Attempting to do so repededly, especially at a high RPM spells certain mechanical failure. Bent valves, broken rings or even a broken crank are all perfct examples of liquid slugging. These compressors require replacement, the single most expensive repair to any HVAC equipment. An A/C compressor simply can not handle refrigerant in its liquid form. As it enters the evaporator as a liquid, it absorbes heat as it  evaporates into a gas prior to entering the compressor.



  1. Low Hourly Rates
Free Diagnostics
Minimal Mark-up 
Longest Running Warranty
Satisfaction Guaranteed!!!
    Low Hourly Rates Free Diagnostics Minimal Mark-up Longest Running Warranty Satisfaction Guaranteed!!!

Call Today

813-447-4445