How much does this unit weigh? - Amana PTC153D35AR Central Air Conditioner

mg is a unit of mass (or weight), ml is a unit of volume.

One ml of water weighs one thousand milligrams. One ml of gold weighs nearly twenty thousand milligrams.

Gram is a unit of mass (or weight). Cup is a unit of volume. The conversion depends on the density of whatever you have.

A cup of water weighs about 237 grams. A cup of gold weighs about 4,600 grams.

Milligram is a unit of mass (or weight). Milliliter is a unit of volume.

One milliliter of water weighs one thousand milligrams. One milliliter of gold weighs nearly twenty thousand milligrams.

Gram is a unit of mass (or weight). Teaspoon is a unit of volume. One teaspoon of water will weigh about 4.9 grams. One teaspoon of gold will weigh over 90 grams.

Gram is a unit of mass (or weight). Cup is a unit of volume.

One cup of water weighs about 237 grams. One cup of gold weighs about 4,600 grams.

Cup is a unit of volume, pound is a unit of mass (or weight). A cup of water weighs about half a pound. A cup of gold will weigh over six pounds.

Gram is a unit of mass while tablespoon is a unit of volume. The conversion depends on the density of the substance.

One tablespoon of water weighs about 14.8 grams. One tablespoon of mercury weighs about 200 grams.

Gram is a unit of mass while tablespoon is a unit of volume. The conversion depends on the density of the substance.

One tablespoon of water weighs about 14.8 grams. One tablespoon of mercury weighs about 200 grams.

Litre is a unit of volume, milligram is a unit of weight or mass.

7.6 litres of water will weigh about 7,600,000 mg, while 7.6 litres of gold will weigh quite a bit more.

Not every 3-ton unit weighs exactly the same - they differ in weight depending on how they were manufactured. Most 3-ton units weigh around 150 pounds (I would guess) give or take a few pounds.
The "3-ton" refers to the "cooling capacity" of the air conditioner.
It's actually 'slang' for 36,000 Btu.
Note; 12,000 btu equals 1 ton.
Hence a 24,000 Btu unit would be called a "2-ton unit," and a 12,000 Btu unit would be called a 1 ton unit.