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Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual MCAC-HTSM-201506
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E-heater.
The selection of auxiliary heater is only for reconmendation, and the selection of auxiliary
heater can be selected according to the actual conditions.
Make sure E-heater is covered with water all the time.
2.9 Electric connection of the unit
Only use the electric components specified by product manufacture.
Electronic installation must comply with the native regulations. Independent power supply
should be applied. Power supply should satisfy electrical specifications that the unit
requires.
The unit must be ground wiring reliably.
Set leakage protective devices according to the requirements of national technical standard
about electric equipment.
Power supply wire and signal wire should be arranged properly without interruption to each
other, do not contact with connecting pipes and valves as well.
When strong electricity and weak electricity are in parallel, please put the cable into each
other
’s circuit and leave a proper space.
No power supply wire is provided, please refer to the requirements in national standards or
factory.
In following table, power supply wire and connection length is the situation when voltage
drop range is within 2%, if wire continuous length exceeds the ones listed in the table,
please choose wires with a right diameters according to relative regulation.
When finishing wiring, power on when there is no mistakes after a careful inspections.
RSJ-420/SZN1-H
Power supply
380-415V, 3Ph, 50Hz
Min. wire size
(metal pipe & synthetic resin pipe wire)
Wire size (
˂30m)
10# (UL1015)
Ground wire
10# (UL1015)
Manual switch
Capacity
63 A
Fuse
50 A
Leakage protector
30mA 0.1sec below