Air-conditioner with fluid tank

An air conditioner comprising:

• an indoor unit;
• an outdoor unit;
• a circulation system for a fluid circulating between the indoor unit and the outdoor unit;
• and
• a fluid tank in the fluid path of the fluid circulating in the circulation system, the fluid tank comprising:
• a first chamber,
• a second chamber,
• the first chamber comprising a high-pressure inlet and a high-pressure outlet,
• the second chamber comprising a low-pressure inlet, a low-pressure outlet and a low-pressure filling opening.

A fluid tank configured to connect an indoor unit of an air-conditioner with an outdoor unit of the air-conditioner, the fluid tank comprising:

• a first chamber comprising a high pressure inlet, a high pressure outlet, and a high pressure filling opening;
• and
• a second chamber comprising a low pressure inlet, a low pressure outlet, and a low pressure filling opening,
• wherein the first and second chambers are configured to circulate a fluid between the indoor and outdoor units, and wherein the fluid is water, a water-based solution, or an alcohol.