FREQUENTLY ASKED QUESTIONS CONCERNING PORTABLE AIR CONDITIONERS Which end of the exhaust hose applies to the unit and    which end applies to the window or wall? Can the exhaust hose be fed into an existing duct? Can the exhaust hose be lengthened? Is the exhaust from the unit harmful? Can the unit be used without hooking up the exhaust hose? I do not have a window or a door in which to install the exhaust hose,    where else can it be installed? Why doesn't the air feel as cool as a window unit? The unit is blowing cool air, but why isn't the room being cooled? Why is the unit not cooling the office and/or computer room? What should be the temperature of the air emitting from the cooling vent? Can the unit be plugged into a regular 15 amp outlet? How much water does the unit hold? How often does the unit have to be drained? Can the drain tube be left in to drain the water continuously? Can the drain tube be put into the drain bottle for direct drainage? Why does the unit make a bumping sound from time to time? Why has the unit stopped blowing cold air and exhaust, when the room is still hot? Can a piece of wire mesh or an exhaust baffle be installed on the end    of the exhaust hose to prevent insects and/or water from entering the hose? Can a three to two adapter be used to plug in the unit? Which end of the exhaust hose applies to the unit and which end applies to the window or wall? The flat, rectangular end fits into the unit; the slanted end fits into the window. (NOTE : Both ends are identical, except the end that fits into the window has an extra attachment.)   Can the exhaust hose be fed into an existing duct? Yes.   Can the exhaust hose be lengthened? Yes, however, the unit will not function as efficiently, and an additional exhaust fan at the end of the extension may be necessary to aid exhaust.   Is the exhaust from the unit harmful? No, the exhaust is only hot air.   Can the unit be used without hooking up the exhaust hose?   No; although the unit will run without using the exhaust hose, it will not function properly as the hot air normally exhausted by aid will be recycled into the room.   I do not have a window or a door in which to install the exhaust hose, where else can it be installed?   It can also be installed through a wall, or into existing duct work. Why doesn’t the air feel as cool as a window unit? The temperature output of the window unit and the portable unit are the same; however, the velocity of the air blowing out of the vent of the portable unit is lower to reduce the amount of noise produced by the unit. (NOTE: While most of the window unit sits outside of the window, the portable unit sits within the space being cooled.)   The unit is blowing cool air, but why isn’t the room being cooled? Check for hot air leakage into the room; check that the exhaust hose has been properly installed (NOTE: If the exhaust hose has been extended, an additional exhaust fan may be needed at the exhaust end of the hose.); check that the size of the room being cooled is within specified parameters delineated on the specification page of the manual; there may be too many bodies in the room; there may be excessive sunlight flooding the room.   Why is the unit not cooling the office and/or computer room? In any such environment: doors are being opened and closed as people come and go; office machines (i.e. computers, copiers, coffee makers, etc.) give off excessive heat; shades or blinds of large windows may be drawn. An evaluation of the heat load by an air conditioning professional may be necessary to determine how many units are needed to cool the environment.   What should be the temperature of the air emitting from the cooling vent? The air blowing out of the cooling vent is directly related to the ambient temperature of the air in the room, which is being drawn through the filters and into the unit: said should be at least 20ºF (6.7ºC) cooler.   Can the unit be plugged into a regular 15 amp outlet? Yes, our units typically pull only 7 amps when running; however, do not insert more than one air conditioner plug into a common double outlet or surge protector.   How much water does the unit hold? Our units hold from 2 to 5 liters (5.3 quarts). How often does the unit have to be drained? It depends upon the humidity: at a humidity of 70%, the unit typically pulls about 12 liters (12.7 quarts) of water in a 24 hour period; as the humidity increases, the amount of water pulled will increase.   Can the drain tube be left in to drain the water continuously? Yes, the unit may run a bit hot, but it will not be affected. (NOTE: Please ensure that the drain tube is fed into an ample source of drainage.)   Can the drain tube be put into the drain bottle for direct drainage? No; although the unit will function, by bypassing the internal float valve, the unit will not automatically turn off when the drain bottle is full, resulting in spillage and possible flooring damage.   Why does the unit make a bumping sound from time to time? The bumping sound is either the compressor starting up or shutting down: once the room being cooled has reached the desired temperature, the compressor will run in on and off cycles to maintain the set temperature.   Why has the unit stopped blowing cold air and exhaust, when the room is still hot? The exhaust hose was either improperly installed or is clogged; such will cause the hot air normally emitted from the exhaust hose to back up and overheat the compressor, which will trip the safety circuit to shut the compressor down; said circuit will reset itself when the air has cooled and the compressor will restart. (NOTE: This problem will recur unless the inadequate exhaust stream has been addressed.)   Can a piece of wire mesh or an exhaust baffle be installed on the end of the exhaust hose to prevent insects and/or water from entering the hose? Yes, those typically used on the outside of a kitchen exhaust work well. Can a three to two adapter be used to plug in the unit? Yes, but an electrician should install the appropriate plug to assure proper grounding.