AUKS AL-H18/4DR1(U), Service Manual

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AUKS DC Inverter 1 Drive1 50HZ R410A Four-way cassette
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3. Capacity Amendment
3.1 Running range
Cooling capacity (Btu/h) 12000 18000 24000 36000 48000 60000
Power supply 220-240V~/50Hz 380-415V 3N~/50Hz
Voltage 187~242V 320~420V
Ambient temperature
Cooling 16~49 ℃
Heating -15~24 ℃
3.2 Amendment coefficient of cooling capacity under different indoor/outdoor DB/WB
temperature
K1
Indoor air inlet temperature ℃ Outdoor air inlet DB temperature ℃
DB WB 25 30 35 40 43
23 16 0.98 0.94 0.89 0.85 0.82
25 18 1.05 1 0.95 0.90 0.87
27 19 1.1 1.05 1 0.95 0.91
28 20 1.12 1.07 1.02 0.96 0.93
30 22 1.19 1.13 1.08 1.02 0.99
32 24 1.26 1.20 1.15 1.08 1.05
Actual cooling capacity calculation:
Actual cooling capacity=amendment coefficient of cooling capacity × nominal cooling capacity
——nominal cooling capacity could be found from the performance parameters list
——amendment coefficient of cooling capacity could be found from table above.
3.3 Amendment coefficient of heating capacity under different indoor/outdoor DB/WB
temperature K2
Actual heating capacity calculation:
Actual heating capacity=amendment coefficient of heating capacity × nominal heating capacity
——nominal heating capacity could be found from the performance parameters list
——amendment coefficient of heating capacity could be found from table above.
Indoor air inlet DB
temperature
℃
Outdoor air inlet WB temperature ℃
-15 -10 -5 0 7 10 15
15
0.64 0.71 0.77 0.8 1.04 1.1 1.16
20
0.59 0.66 0.72 0.76 1 1.06 1.12
25
0.55 0.62 0.69 0.71 0.96 1 1.07