Air Conditioner

Air Conditioner, how to set the air conditioner to certain rooms only?
the air conditioner in my house turns on at EVERY room. i want it to just be on at certain room to keep bills low. anyone knows how?
Something one must pay close attention to is over restricting the air flow. A certain minimum amount of air must pass over the evaporator coil located inside the house. Failure to allow this air to pass can cause the natural condensation of water to turn to ice or “freeze up”. This can result in liquid refrigerant slugging back to the compressor outdoors and damaging the reed valves. That is an expensive proposition. Rule of thumb is less restriction of air flow, the better.
How Air Conditioning Work