格力空调窗机铭牌上的"cooling power input"和"cooling rated input

格力空调窗机铭牌上的"cooling power input"和"cooling rated input
以下是铭牌参数：
WINDOW TYPE AIR CONDITIONER
model GJCM18A4TK1KA
rated voltage 220-240V~
rated frequency 50Hz
climate type T3
comp.LRA 52A
cooling capacity 4500W
cooling power input 1850W
cooling rated input 2900W
presure (discharge/suction) 2.7/1.6MPa
maximum allowable presure 4.7MPa
sound presure level (indoor/outdoor) 52/60dB(A)
refrigerant R22
refrigerant charge 0.7kg
weight 68kg
isolation I
moisture protection (outdoor part) IP24
manufactured date 2010.10
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
蓦然回首山：
我也觉得cooling power input 1850W是压缩机功率,cooling rated input 2900W是总功率,可是除了压缩机就剩两个风机了,功率不会有2900-1850=1050W这么大吧……