Capacity And Power Consumption - Panasonic CS-A18BD3P Service Manual

15 CAPACITY AND POWER CONSUMPTION

15.1. COOLING CAPACITY CURVE, COOLING POWER CONSUMPTION
CURVE
COOLING CAPACITY CURVE
RATED COOLING CAPACITY, RATED COOLING POWER CONSUMPTION
CS-A24BD3P/CU-A24BBP5
CS-A28BD3P/CU-A28BBP5
CS-A28BD3P/CU-A28BBP8
CS-A34BD3P/CU-A34BBP5
CS-A34BD3P/CU-A34BBP8
CS-A43BD3P/CU-A43BBP8
CS-A50BD3P/CU-A50BBP8
CS-A24BD3P/CU-C24BBP5
CS-A28BD3P/CU-C28BBP5
CS-A28BD3P/CU-C28BBP8
CS-A34BD3P/CU-C34BBP5
CS-A34BD3P/CU-C34BBP8
CS-A43BD3P/CU-C43BBP8
CS-A50BD3P/CU-C50BBP8
• • • • Calculation of actual cooling capacity and power consumption
Example
CS-A28BD3P / CU-C28BBP8
• • • • Calculation of the actual cooling capacity and power
consumption for the following cooling conditions: Indoor
temperature of 18°C (wet-bulb temperature) and outdoor
temperature of 40°C (dry-bulb temperature).
Calculation method
• • • • Find the cooling capacity ratio and power consumption ratio
from the cooling capacity graph and power consumption
graph for model CS-A28BD3P / CU-C28BBP8.
1. The cooling capacity ratio indicated at the intersection
between an outdoor unit heat exchanger inlet air
temperature of 40°C on the horizontal axis and an indoor
unit heat exchanger inlet temperature on 18°C is 0.92.
MODEL NAME
COOLING POWER CONSUMPTION CURVE
RATED COOLING STANDARD
CAPACITY (kW) POWER CONSUMPTION (kW)
6.50
7.30
7.30
10.45
10.45
13.00
14.50
6.50
7.30
7.30
10.45
10.45
13.00
14.50
2. The cooling power consumption ratio from the same
intersection on the power consumption graph is 1.02.
• • • • Thus,
Actual cooling capacity = cooling capacity ratio x rated
cooling = 0.92 x 7.80 = 7.18 (kW)
Actual cooling power consumption = cooling power
consumption x rated power consumption = 1.02 x 2.70 =
2.75 (kW)
33
2.59
2.69
2.69
3.95
3.65
4.53
5.10
2.59
2.69
2.69
3.95
3.65
4.53
5.10