ɡ 3 ǡ . ϡ ɡ ɡ . . ݿ 3 ɡ ǡ : 1- (Split Units) . ϡ . 2- ( ) . 3- () . ߡ . BTU ɡ ǡ BTU . : ( 907 ) 24 ɡ 12,000 (BTU). (BTU): ( 450 ) (0.555556 \) 5,000 BTU 5,000 . ϡ (6,000 12,000 BTU) ǡ 1 2 ɡ . . ѡ ɡ : ɡ . ( ) . ( ) ɡ . ߡ . ɡ ̡ . ɡ 250 1500 ѡ ǡ .