the unit is built in the wall. window covers dont fit.air leask from the main vent.the maintenacne guy told me to cut cardboard strips and stick it outside (exterior ) of the building its on a high flooralso cold air leaking from the filter above the kitchen cooking range..please help asap
Not much to do with the AC except cover it tightly on the inside with a plastic sheet secured tightly. Covering the outside could be dangerous due to height and what if someone turns it on while that outside cover is on, you could damage the unit. Thats just the nature of those things, they are a big hole in your wall. The vent hood should have a damper that is forced open by the flow of air when the blower is on. Take off that filter and see if you can see such a thing and see if it is working properly. If you block this device off, use a non flamable material such as foil etc.
