1.4. Operation range
1.4.1. Power Supply
The applicable voltage range for each unit is given in the following table. The working voltage among the three phases must be
balanced within a 3% deviation from each voltage at the compressor terminals. The starting voltage must be higher than 85% of
the rated voltage.
MODEL Unit Main Power Applicable Voltage
CU- Phase, Volts Hz Max Min
L24DBE5 1~240 50 264 216
L28DBE5 1~220 50 242 198
1~230 50 253 207
1.4.2. Indoor and Outdoor Temperature
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Model 50Hz CU-L24DBE5, CU-L28DBE5
Operating Hz Indoor Temp. (D.B./W.B.) (°C) Outdoor Temp. (D.B./W.B.) (°C)
Max Min Max Min
Cooling 50 32/23 21/15 43/- -15/-
Heating 50 27/- 16/- 24/18 -20/-
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CS-F24DB4E5 CU-L24DBE5 / CS-F28DB4E5 CU-L28DBE5