Electric Wiring - Toshiba MMY-MUP0801HT8P-E Installation Manual

8

Electric wiring

WARNING
The appliance shall be installed in accordance with national wiring regulations.
Capacity shortages of the power circuit or an incomplete installation may cause an electric shock or fire.
CAUTION
• Perform wiring of power supply complying with the rules and regulations of the local electric company.
• Do not connect 380V - 415V power to the terminal blocks for control cables (Uv (U1, U2), Uh (U3, U4), Uc (U5, U6));
otherwise, the unit may break down.
• Be sure that electric wiring does not come into contact with high-temperature parts of piping; otherwise, the
coating of cables may melt and cause an accident.
• After connecting wires to the terminal block, take off the traps and fix the wires with cord clamps.
• Process both electric wiring and refrigerant piping into the same system.
• Do not conduct power to indoor units until vacuuming of the refrigerant pipes has finished.
• For the power supply wiring of indoor units, follow the instructions in the Installation Manual of each indoor unit.
Power supply specifications
Do not bridge the power between outdoor units
through the equipped terminal blocks (L , L
1
47-EN
, L , N).
2 3
Power supply for
outdoor units
Incorrect
Power wiring selection
1
Single unit
Unit 1 Unit 2
ELCB ELCB
Main Main
switch switch
Model name
MMY-MUP0801
MMY-MUP1001
MMY-MUP1201
MMY-MUP1401
MMY-MUP1601
MMY-MUP1801
MMY-MUP2001
MMY-MUP2201
MMY-MUP2401
– 24 –
Unit 3 Unit 4
ELCB ELCB
Main Main
switch switch
MCA: Minimum Circuit Amps
MOCP: Maximum Overcurrent Protection (Amps)
Phase supply MCA
17
23
27
31
3N~ 50Hz
34
380-400-415V
38
40
57
60
Unit 5
ELCB
Main
switch
MOCP
20
32
32
40
40
50
50
63
80
EN
48-EN