Can You Oversize An Evaporator Coil?

Can you Oversize an evaporator coil? The added surface area slows airflow and you get better heat and dehumidification.”, while the answer to “Can you Oversize an evaporator coil?” says the exact opposite: “After extensive research, we have found that

having a matched or oversized evaporator coil will not control humidity enough

.

What happens if evaporator coil is oversized?

Yes, it's bad if your evaporator coils are sized bigger or smaller than your condenser coils. In fact, if the size of your evaporator and condenser coils don't match, it can result in:

Higher monthly energy costs

. Reduced unit lifespan.

Is a larger evaporator coil better?

Your AC may excel in dehumidifying your home if the evaporator coils are larger, but will not cool your home effectively. Meanwhile,

larger evaporator coils will cool your interior, but they will not remove moisture from the air

. Keep in mind that it is never a good idea to delay an air condition repair.

Should evaporator coil be larger than condenser?

Can I use a 2.5 ton condenser with a 3 ton coil?

The short answer is,

you can't

. A good tech might be able to get it to work with like a TXV, but you are going to be bottle-necked at the 3-ton. There is no way you will get 5-ton capacity after that. It will mess up your warranty and your efficiency will be off.

Can you put a 2.5 ton condenser with a 2 ton coil?

In spite of the nay sayers here

yes you can and it can work very well

. You will indeed have to install an expansion valve that matches the condenser capacity. It also depends on the type of evaporator coil and furnace or Air Handler that you have.

Can you use a 5 ton coil with a 4 ton condenser?

if coil is not to old it may be an ari rated match.

5 ton coil with 4 ton unit is VERY common to get seer ratings up

. just make sure blower is set up for proper cfm's. use a propely sized txv for your metring device and airflow,airflow,airflow!!!

Can I use a 4 ton condenser with a 3 ton air handler?

she can not install a 4 ton condenser on a 3 ton coil and expect it to work

. as far as everyone saying trying to force 4 tons of air through a 3 ton coil, he didn't say anything about changing the air handler out, only the outdoor unit. also the wiring probably isn't large enough to handle the larger unit.

Can I use a 5 ton condenser with a 4 ton air handler?

A 5 ton outdoor unit will not work with a 4 ton indoor coil and air handler or furnace

.

What happens if condenser is oversized?

Since the oversized unit is constantly short-cycling,

the rooms that are furthest away from the thermostat will cool down slower than the interior rooms

. This causes hot and cold spots throughout your home, which is uncomfortable. The temperature of your home should be consistently comfortable.

Why condenser capacity is always bigger than evaporator?

Condensers have to be larger than evaporators in terms of their heat exchange capacity because

they are not only rejecting the heat absorbed by the evaporator

… they also need to reject additional heat that the refrigerant gains in the compressor from the heat of compression.

How do you tell the tonnage of an evaporator coil?

Simply

divide the BTUs by 12,000

to calculate the tonnage of your unit. For example, if your air conditioner is 36,000 BTUs, you have a 3-ton unit. Some manufacturers bury tonnage or BTU information in their model numbers. Look for an even, two-digit number between 18 and 60.

How do you match AC condenser and evaporator?

How do I know what size evaporator I need?

If the evaporator must move 400 gallons per minute: 14 x 400 = 5,600. Multiply the answer by 500: 5,600 x 500 = 2,800,000. This answer is the evaporator's size, measured in BTUs per hour

. Divide the answer by 12,000: 2,800,000 / 12,000 = 233.33.

Does the air handler and condenser have to match?

The coils, blowers, wiring, etc. need to be compatible in order for an air conditioning system to operate efficiently and keep your home comfortable.

If you combine a condensing unit with an air handler (or furnace) it wasn't designed to work with, in the best case the result will be reduced operating efficiency

.

Do SEER ratings need to match?

The SEER rating of a heat pump or air conditioning system is based on the efficiency of the combination of the condenser (outdoor unit) and air handler (indoor unit).

They are required to be matched up by the manufacturer for performance

, and the system may have a slightly higher rating than the condenser alone.

Do evaporator coils have SEER ratings?

A SEER is an energy efficient ratio for all HVAC units.

If you have a SEER rating below 14, you may need to replace the entire unit and not just the evaporator coil

. This is because you can't match an evaporator coil with a SEER 14 rating with a unit that has a rating of 13 or lower.

Can a 2 ton outdoor unit be installed with a 1.5 ton indoor unit?

A straightforward answer for your question would be YES.

You can use any indoor unit for any outdoor unit

. Because all the cooling comes from the outdoor unit only.

How do you size an AC coil?

How many horsepower is a 3 ton compressor?

How do I read my evaporator coil model number?

What is the difference between a condenser and evaporator?

Evaporator Coils vs. Condenser Coils.

The evaporator coil is the part of an air-conditioning system that removes heat and moisture from indoor air to cool it.

The condenser coil takes that heat and releases it outside.

Can I install a different brand of AC indoor and outdoor unit?

Different brand equipment can almost always work fine

. However, because manufacturers design their components to work optimally together, the potential exists for some loss in efficiency when mixing and matching. Keep in mind, you are also combining systems that are different ages as well.

What is the difference between a 2 ton and a 3 ton AC unit?

HVAC experts eventually divided that number by 24 hours and came up with 12,000 BTU/1-ton AC capacity. Using that measurement,

a two-ton AC unit will remove 24,000 BTUs, while a three-ton AC unit will remove 36,000 BTUs

. Therefore, the more tonnage the AC unit is rated for, the more air it can cool down.

How do you match AC to furnace?

Does a heat pump have to match air handler?

“Can a heat pump be replaced without having to replace the air handler?” The answer is

yes, but with some caveats

. You have to make sure the units you have match appropriately. You can't just go to a store and buy the first condenser you see and match it with the air handler in your house.

Should I replace condenser with compressor?

As you can see, condenser problems and compressor failures are often related. Thus,

it might be a good idea to replace a condenser when your compressor fails

. What's more, when a compressor fails, there is a tremendous amount of debris that is suddenly injected into the AC system.

Can I replace my AC unit with a heat pump?

If you need to replace your air conditioning system or your entire HVAC, should you consider getting a heat pump for AC?

A heat pump can replace your air conditioner, and possibly your heating system as well

. But it is important to make sure it's the right choice for your needs.

Is it better to undersize or oversize AC?

What happens if you have an oversized AC unit?

When an AC system is too big,

it won't run regular cycles

. As a result, the cycles will not be long enough to remove humidity from the air (which is a big deal living in Florida). Generally, it takes a cycle of 20 to 30 minutes to cool and dehumidify the air.

How many square feet will a 3 ton AC cool?

How many square feet does a 3-ton air conditioner cover is quite easy to answer as well. 3-ton is equal to 36,000 BTU. If you apply the 20 BTU per sq ft rule of thumb, you can see that a 3-ton air conditioner cools about

1,800 square feet

spaces.

Can a condenser be to big?

Can a dirty condenser cause high subcooling?

With a dirty or blocked condenser,

even the subcooled liquid temperature coming out of the condenser will be at a higher temperature

. This means that the liquid temperature out of the condenser will be further from the evaporating temperature.

What is the suction pressure of an R134a unit operating at an evaporator temperature of 20?

At low temperatures such as -20F, the suction temperature for R134a would be -40F. At this temperature, R134a suction pressure would be in a vacuum of

14.7 in Hg

.. For R404a, the suction pressure would be 4.8 psig.

How many sq ft will a 2.5 ton AC cool?

For example, a 30,000 BTU, 2.5-ton air conditioner is made to effectively cool a home

between 1,200 and 1,500 square feet

. A slightly larger 3,600, 3-ton unit, is designed for homes that are 1,500 to 1,800 square feet.

What ton AC do I need for 2000 square feet?

If your home is 2000 square feet, you can calculate your HVAC needs the same as you would for a 1600 square foot home. Assuming one ton of cooling capacity can cool 400 square feet of your home, you'll need about

5.0 tons

of air conditioning capacity. Multiply this by 12,000 BTUs, and you'll get 60,000 BTUs.