Installation manual

English 12

7-2 EXAMPLE FOR THE WHOLE SYSTEM

7-3 POWER CIRCUIT, SAFETY DEVICE AND CABLE REQUIREMENTS

• A power circuit (Refer to Table 3) must be provided for connection of the unit. This circuit must be protected

with the required safety devices, i.e. a main switch, a slow blow fuse on each phase and an earth leakage

circuit breaker.

• When using residual current operated circuit breakers, be sure to use a high-speed type (0.1 second or

less) 30mA rated residual operating current.

• Use copper conductors only.

• Use insulated wire for the power cord.

• Select the power supply cable type and size in accordance with relevant local and national regulations.

• Use vinyl cord with sheath or cable (2 wire) of AWG 18-16 for transmission wiring.

Table 3

MCA: Min. Circuit Amps (A); MFA: Max. Fuse Amps (A)

NOTES

• The above Table 3 of Electrical Characteristics refers to one BS unit.

• See the Engineering data book for other details.

7-4 WIRING EXAMPLE

• Here is shown a wiring example for one system transmission wiring.

• Connect terminals F1 and F2 (TO IN/D UNIT) on the control PCB (A1P) in the outside unit EL. COMPO.

BOX and terminals F1 and F2 (TO OUT/D UNIT) of the control PCB (A1P) of the first BS unit A.

Units Power supply

Model Type Hz Voltage Min. Max. MCA MFA

BSVQ36P

BSVQ60P

VJ 60 208~230 187 253 0.1 15

Power supply wiring

Transmission wiring

Switch

Fuse

Outside unit

Power supply

Main switch

BS unit

Indoor unit

Remote controller

Cooling/Heating selectable indoor unit

Cooling-dedicated

indoor unit