Should AC outdoor unit be lower than indoor unit?

It is always advisable to keep the outdoor unit at the height above the indoor unit. If the outdoor unit is kept at level below the indoor, some of the compressor power is used in pumping the refrigerant against the gravity, thus reducing the overall performance of the compressor.
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Can outdoor unit be lower than indoor unit?

Yes, absolutely. You can normally go up or down 1 full ton on the indoor coil. So a 2.5-ton outdoor unit can be installed with a 2 ton indoor unit.
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Should outdoor AC units be level?

We recommend you do not attempt to level the outdoor unit on your own. If you try to move or level the AC unit yourself, you risk bending the coolant lines, causing a leak, and allowing refrigerant to escape into the atmosphere. Even a small kink in the copper tubing can cause catastrophe in your AC equipment.
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Where should the outdoor unit of AC be placed?

Installing the outdoor unit in a safe, dry and well-ventilated area is advised. Making sure your outdoor unit is clear of trees or a dusty area (like a driveway) can further help you keep your air conditioner's filters clean and less likely to get dirty or blocked.
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Should AC unit be placed high or low?

Indoor AC unit must be installed high on the wall to ensure that cool air is distributed evenly throughout the room.
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Why the air conditioner unit is normally normally above the ground level?

As cool air is more dense than hot air so this cool air shift downward that is why the A.C. is installed at a height. If the A.C. would be installed at low level then coll air will not be able to cool whole room because then it become limited to areas near floor of the room.
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Why air conditioner are installed just below the roof?

The heater is placed near the floor because the air currents move upwards so the hot air fills up the whole room. Whereas, an air conditioner is placed near the ceiling because the cold breeze tends to settle down. If it is placed near the floor then it will fill just the bottom of the room with cool air.
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Can AC outdoor unit be higher than indoor unit?

Conclusion. An outdoor AC unit can be installed higher than the level of the indoor AC unit. There are some vertical distance restrictions, which require additional refrigerant added to the system if they are exceeded.
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How much clearance do you need above AC unit?

The general rule of thumb is to have at least one foot (or 12 inches) of clearance on each side of your air conditioner. Your air conditioner's manufacturer may have specific clearance recommendations, but they'll generally recommend between 12 and 24 inches.
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What happens if window AC unit is not level?

Window air conditioners drip water. If the unit is tilted appropriately, the drip will fall onto the ground outside. However, if it is not tilted enough, the water will drip inside the air conditioner and possibly down the wall inside your home. If this happens, you will need to readjust your air conditioner.
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How level should a condenser be?

Refrigerant needs to flow through the coils evenly without too much interference from the slope of the unit. A level concrete slab with rubber pads between the unit and the concrete is what the manufacturers recommend. "Mostly level" is probably okay for a residential unit.
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Why are AC units on roofs in Arizona?

It's not uncommon to see an air conditioning unit on the roof in Arizona because these systems require optimal circulation and ventilation in such a hot climate.
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Why do manufacturers require clearance above the unit condenser?

The manufacturer probably specifies a minimum number of feet of clear space above the compressor/condenser unit to avoid restricting its intake or more often outflow.
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What is the minimum distance between indoor outdoor units split AC?

Keep the distance between the two as close as possible to facilitate faster flow of your unit's coolant. The indoor and outdoor units should not be separated by more than 15 metres or cooling will be greatly affected.
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How Far Can AC condenser be from house?

Your condenser unit should be placed in a space that allows it to breathe freely. This means there should not be any large obstructions within at least 3-4 feet of your unit. If your home has multiple condenser units, they should be placed far enough away from each other that they do not hinder one another's airflow.
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Why air conditioner mounted high up on the wall?

Warmer air at the bottom is displaced and due to it being less dense, it rises. This process continues and sets up a convection current that will allow thermal transfer to occur. Since cold air is emitted from the A/C unit blowers, the unit has to be placed at the top of a room to allow a convection current to form.
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Why is a room heater place near the floor and an air conditioner near the ceiling?

A heater makes a room warmer by convection currents . The cold air comes down to get heat from heater and warm air (convection currents) lifts up in the room . If heater is placed at a height , then cold air below this height will not be heated by heater therefore it is installed near he floor of room.
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What is the problem with rooftop HVAC units?

RTU's are heavy and could cause damage to your roof membrane. If this happens, it could result in water leaking into the building. If the installation is done in a poor location such as a low spot, any water pooling from rain and weather can eventually corrupt the rooftop material surface where the unit sits.
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Does outside AC unit need shade?

Some people look into covering their outdoor AC units to protect them from debris and bad weather, but the fact of the matter is that you simply do not need to. In fact, you shouldn't.
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Can you put AC condenser on roof?

One of the basic reasons why most of us choose a roof-mounted AC unit is the amount of space it room. This can be an excellent solution for those who are living in residential areas and most likely don't have much both indoor and outdoor space for their air conditioning system.
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What should I put under my air conditioner?

You Need a Concrete Slab Under Your Outdoor AC Unit Because:
  1. It keeps your air conditioner from sinking: For an air conditioning system to function at peak efficiency, it is essential that it has room to breathe. ...
  2. It keeps oil from spreading: The compressor in your AC unit runs on oil.
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Does air handler need to be level?

The air handler must be installed in a level position to ensure proper condensate drainage. Keep flammable materials and vapors, such as gasoline, away from air handler. Place air handler so that heating elements are at least 18 inches (46 cm) above the floor for a garage installation.
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How do I put rocks in my AC unit?

To put rocks around your air conditioning unit, you will need to:
  1. Mark the area that you are going to landscape.
  2. Remove the grass around the air conditioner.
  3. Level the surface.
  4. Put additional dirt if needed.
  5. Place landscape cloth.
  6. Fasten landscape cloth.
  7. Fill the area with rocks.
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Are window AC units supposed to be level?

Many people mistakenly believe that air conditioners should be pitched down, slightly out of level, to help them drain condensate. Actually, an air conditioner should be installed so it is level. These appliances are designed so that condensate collects below the fan and runs into the slinger ring.
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