19
Installation and Maintenance
Service Manual
(1) Use copper wire only as unit’s power cord. Operating temperature should be within it
value.
(2) If the power cord is more than 15m (49-1/4 ft.) long, please increase properly the sectional
area of power cord to avoid overload, which may cause accident.
(3)Above selection requirements: Power cord size is based on BV single-core wire (2~4pc)at
40°C(104°F) Cambient temperature when laying across plastic pipe. Air switch is D type and
used at 40°C(104°F). If actual installation condition varies, please lower the capacity
appropriately according to the specifications of power cord and air switch provided by
manufacturer.
(4)Install cut-off device near the unit. The minimum distance between each stage of cut-off
device should be 3mm(1/8 in.) (The same for both indoor unit and outdoor unit).
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