15
Application Information
MWM-J_(ii)
Wiring
Electrical Connections
• Wiring regulations on wire diameters differ from country to country. Please refer to your LOCAL
ELECTRICAL CODES for
fi
eld wiring rules. Be sure that installations comply with the rules and regulations.
General Precautions
• Ensure that the rated voltage of the unit corresponds to the name plate before carrying out proper wiring
according to the wiring diagram.
• Provide a power outlet to be used exclusively for each unit. A power supply disconnects and a circuit
breaker for over-current protection should be provided in the exclusive line.
• The unit must be GROUNDED to prevent possible hazards due to insulation failures.
• All wiring must be
fi
rmly connected.
• All wiring must not touch the hot refrigerant piping, compressor or any moving parts of fan motors.
Refrigerant Piping
Piping Length and Elevation
When the pipe length becomes too long, both the capacity and reliability drop. As the number of bends increases,
system piping resistance to the refrigerant
fl
ow increases, thus lowering the cooling capacity, and as the result
the compressor may become defective. Always choose the shortest path and follow the recommendation as
tabulated below:
Outdoor Unit
Indoor Unit
L
H
Model
Indoor
MWM09J/JR
M5WM10J/JR
MWM15J/JR
M5WM15J/JR
MWM20J/JR
M5WM20J/JR
MWM25J/JR
M5WM25J/JR
Outdoor
MLC09C/CR
M5LC10C/CR
MLC15C/CR
M5LC15C/CR
MLC20C/CR
M5LC20C/CR
MLC25C/CR
M5LC25C/CR
Min. Allowable Length, m (L)
3
3
3
3
Max. Allowable Length, m (L)
12
12
15
15
Max. Allowable Height, m (H)
5
5
8
8
Liquid, mm/in
6.35 / 1/4
6.35 / 1/4
6.35 / 1/4
9.52 / 3/8
Suction, mm/in
9.52 / 3/8
12.70 / 1/2
15.87 / 5/8
15.87 / 5/8
* Be sure to add the proper amount of additional refrigerant. Failure to do so may result in reduced performance
Remark: The refrigerant pre-charged in the outdoor unit is for piping length up to 7.6m/25ft.
Содержание M5WM10J
Страница 10: ...8 MWM J_ ii Application Information Model MWM20JR MLC20CR Model MWM15JR MLC15CR 70034 095236...
Страница 11: ...9 Application Information MWM J_ ii Model M5WM20J M5LC20CJ Model M5WM25J M5LC25CJ...
Страница 13: ...11 Application Information MWM J_ ii Model M5WM25JR M5LC25CRJ CHECK JOINT COOLING HEATING CAP TUBE...
Страница 60: ...58 MWM J_ ii Wiring Diagram Cooling Only Indoor Unit Outdoor Unit Model MWM20 25J Model MLC20 25C 70034 108883...
Страница 62: ...60 MWM J_ ii Wiring Diagram 70034 108882 Heat Pump Indoor Unit Outdoor Unit Model MWM20 25JR Model MLC20 25CR...
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