Panasonic CS-A18BD3P Service Manual

Panasonic CS-A18BD3P Service Manual Manual pdf 33 page image

COOLING CAPACITY CURVEExampleCS-A28BD3P / CU-C28BBP8•••• Calculation of the actual cooling capacity and powerconsumption for the following cooling conditions: Indoortemperature of 18°C (wet-bulb temperature) and outdoortemperature of 40°C (dry-bulb temperature).Calculation method•••• Find the cooling capacity ratio and power consumption ratiofrom the cooling capacity graph and power consumptiongraph for model CS-A28BD3P / CU-C28BBP8.1. The cooling capacity ratio indicated at the intersectionbetween an outdoor unit heat exchanger inlet airtemperature of 40°C on the horizontal axis and an indoorunit heat exchanger inlet temperature on 18°C is 0.92. COOLING POWER CONSUMPTION CURVE2. The cooling power consumption ratio from the sameintersection on the power consumption graph is 1.02.•••• Thus,Actual cooling capacity = cooling capacity ratio x ratedcooling = 0.92 x 7.80 = 7.18 (kW)Actual cooling power consumption = cooling powerconsumption x rated power consumption = 1.02 x 2.70 =2.75 (kW)15 CAPACITY AND POWER CONSUMPTION15.1. COOLING CAPACITY CURVE, COOLING POWER CONSUMPTIONCURVERATED COOLING CAPACITY, RATED COOLING POWER CONSUMPTIONMODEL NAME RATED COOLING STANDARDCAPACITY (kW) POWER CONSUMPTION (kW)CS-A24BD3P/CU-A24BBP5 6.50 2.59CS-A28BD3P/CU-A28BBP5 7.30 2.69CS-A28BD3P/CU-A28BBP8 7.30 2.69CS-A34BD3P/CU-A34BBP5 10.45 3.95CS-A34BD3P/CU-A34BBP8 10.45 3.65CS-A43BD3P/CU-A43BBP8 13.00 4.53CS-A50BD3P/CU-A50BBP8 14.50 5.10CS-A24BD3P/CU-C24BBP5 6.50 2.59CS-A28BD3P/CU-C28BBP5 7.30 2.69CS-A28BD3P/CU-C28BBP8 7.30 2.69CS-A34BD3P/CU-C34BBP5 10.45 3.95CS-A34BD3P/CU-C34BBP8 10.45 3.65CS-A43BD3P/CU-C43BBP8 13.00 4.53CS-A50BD3P/CU-C50BBP8 14.50 5.10•••• Calculation of actual cooling capacity and power consumption33