Wiring Design; General; Electrical Wiring Design; Outdoor Unit Power Supply - Toshiba MCY-MHP0404HT-E Engineering Data Book

4
Side blow VRF Data book

Wiring design

4-1. General

• The appliance shall be installed in a accordance with national wiring regulations.
Capacity shortages of the power circuit or an incomplete installation may cause an electric shock or fire.
• Perform wiring of power supply complying with the rules and regulations of the local electric company.
• Never connect AC voltage power to the control wiring terminal block (U1,U2,U3,U4); 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.
• Locate wiring system for the control and refrigerant piping system in the same line.
• Do not turn on the power supply of the indoor units until vacuuming of the refrigerant pipe has finished.
• For the wiring of power to indoor units and that between indoor and outdoor units, follow the instructions in the
installation manual of each indoor unit.

4-2. Electrical wiring design

Outdoor
power source
Indoor
power source
Determine the wire size for the indoor unit according to the number of connected indoor units downstream.

4-3. Outdoor unit power supply

Electrical characteristics
Model name
MCY-MHP0404HT-E
MCY-MHP0504HT-E
MCY-MHP0604HT-E
MCA : Maximum Circuit Amps
MOCP : Maximum Overcurrent Protection (Amps)
Circuit breaker
(Earth leakage breaker)
Single phase
50 Hz 220-240V
Earth leakage breaker
power switch
Normal Voltage Voltage Range
(V-Ph-Hz) Min
230 - 1 - 50 198
230 - 1 - 50 198
230 - 1 - 50 198
Main switch
(Fuse)
Indoor unit Indoor unit
Indoor unit Indoor unit
Compressor
Max kW
264 3.75
264 3.75
264 3.75
22
Pull box
Indoor unit
Indoor unit
Fan Motor Power Supply
kW MCA
0.100 × 2
23.5
0.100 × 2
26.5
0.100 × 2
28.0
MOCP
32.0
32.0
32.0