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1.5. Operation range
1.5.1. 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.
1.5.2. Indoor and Outdoor Temperature
• Model 50Hz CU-B24DBE5 CU-B28DBE5 CU-B28DBE8 CU-B34DBE5 CU-B34DBE8 CU-B43DBE8 CU-B50DBE8
* -10°C is possible in non-residential computer rooms, etc., where the temperature is not les than 21°C and humidity is not more
than 45%.
MODEL Unit Main Power Applicable Voltage
CU- Phase, Volts Hz Max Min
B24DBE5 1~220 50 242 198
B28DBE5 1~230 50 253 207
B34DBE5 1~240 50 264 216
B28DBE8 3N~380 50 418 342
B34DBE8 3N~400 50 440 360
B43DBE8 3N~415 50 457 374
B50DBE8
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/- -10/-*
Heating 50 27/- 16/- 24/18 -10/-
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