Trying to cool but units run and run and run.

7000kw up to 12x12 room

you can try to remove the unit and clean it. front coil and back coil.

that is a 10000 btu unit and a good rule of thumb to go by when 'sizing' a unit is 12000 btu for every 600 sq ft of cooling space (if the place is well insulated) or 400 sq ft (if not well insulated).
So, you have a 10000 btu unit which is 5/6th of 12000 btu - so - can reasonably expect that unit to cool approximately 500 sq feet.
In other words the room it's in now could be only - say - 300 sq feet (and well insulated) - in which case the AC unit is cooling it - well.
However, if you try to cool a 800 sq ft room - it will not work as well.
Hope this has helped.

Assuming the unit is 'cooling' but not cooling it 'well,' I would think the unit is too small.
NOTE: 2000 Btu for every 100 sq ft of cooling space if the room is well insulated. If not - then 2000 btu for every 66 sq ft.
For example - a 12000 btu AC unit should cool 600 sq feet of cooling space if well insulated.
or
400 sq feet if not well insulated.
hope this has helped.

Unfortunately, 7000 Btu's will not cool 1180 sq ft. At best, it's rated for 400 sq ft, as it's only rated as a "Room Air Conditioner". To cool 1180 square feet, you'll need at least 30,000 Btu's (like in Central Air Conditioning) or 4 more window units spread out throughout the condo. It takes more Btu's to cool, than it does to heat.

I really sorry. I wish I had better news for you. Thanks for choosing FixYa.

You need 12,000 BTU for every 500 sq ft of room space

Three 12,000 BTU window units would be close

The AC your landlord installed is rated at 8000 btu which is way too small for 900 sq ft. You need at least a 15000 Btu Air conditioner and a 'well insulated' house to be cool.
A good rule of thumb in the AC business says you need 1 ton (12000 btu) of Air conditioning for every 600 sq feet (if the house is well insulated) - if not - then you will need 1 ton (12000 btu) for every 400 sq feet.
So, if you have 900 sq feet and the house is well insulated you should have at least a 15000 btu unit.
If it's not well insulated you will need 24,000 btu.

you need to find out the size of the unit.
Rule of thumb - for every 600 sq ft of cooling area (in a well insulated house) you will need 1 ton of air conditioning. 1 ton = 12000 btu.
So, if your cooling area is 600 sq ft you would need an AC which was rated at 12000 btu, assuming your house is well insulated.
If it is not insulated well - you might need a bigger unit, i.e. 15000 btu.

This sounds like the unit is low on freon. From the model plate you have a 24,000 btu unit. This is the minimum needed for 1100 sq ft not accounting for windows and doors. Other factors have to be looked at for a good cooling AC, where is the unit located? In the basement is good. in the attic is bad. look at all the duct work is it all metal and insulated (good) is it plastic tubing (bad). The more insulation on the duct and the better it is sealed the better. You could use more btu's but you would have to replaced the whole system inside and out. You might look for a good 12,000 btu window unit or 2 - 3 8000 btus in different rooms. Now back to the problem I think you unit is low on freon. Should be using R22, unless you have a brother-in-law in the HVAC business you will have to call a local AC company to check out and add freon. Repost if you find other problems.

An 11'500 btu Is appr. 1 ton of cooling capacity or enough to cool approximatly 450 sq ft of floor area. Be sure to read the instructions of course and be sure that all the packaging material was removed that may be restricting airflow. On high you should be able to easily feel the air blowing 10-15 ft from the unit and the air should be dropping about 15- 20 degrees when it exits the unit. So if the room temperature is 85 degrees the air exiting the unit should be around 65 -70. The amount of time it takes to cool the entire room depends on how big the room is and how much and the intensity of the heat infiltrating the room and the number and heat output of appliances and people in the room. Hope this helps you out GL!