Toshiba Carrier MMC-AP0181H2UL, Руководство по установке, Страница: 10 / 18

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Ceiling type
Installation Manual
Ceiling type
Installation Manual
„ Wiring between indoor and outdoor units
NOTE
An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically the header
unit.
▼ Wiring example
U1U2
U1U2U3U4 L1 L2 L3 N U5U6
L1L2 A B U1U2 L1L2 A B U1U2 L1L2 A B U1U2 L1L2 A B
A B
U1U2U3U4 L1 L2 L3 N U5U6
A B A B
Outdoor Power supply
Ground
terminal
Ground
terminal
Outdoor Power supply
Circuit breaker Circuit breaker
Header outdoor unit Follower outdoor unit
Control wiring between outdoor units
Control wiring between indoor and outdoor units
Control wiring between indoor units
Indoor unit
Indoor unit Indoor unit
Indoor unit
Ground Ground Ground Ground
Remote
control
Remote
control
Remote
control Indoor
power
supply
Circuit
breaker
208/230-3-60 208/230-3-60
208/230-
1-60
Disconnect
switch per NEC
Disconnect
switch per
NEC
Disconnect
switch per
NEC
Disconnect
switch per
NEC
Group control
„ Wire connection
REQUIREMENT
• Connect the wires matching the terminal numbers. Incorrect connection causes a trouble.
• The low-voltage circuit is provided for the control wire and the remote control wire. (Do not connect the high-
voltage circuit)
• Loosen the cover mounting screws (2 positions) of the electrical control box, and then remove the cover.
• Attach the conduit pipe to the conduit hole with a lock nut.
• Slit the film of bushing attached to the hole for control wire and remote control wire, and then pass through wires.
• Connect the power supply wires, control wiring and the remote control wire to the terminal block of the electrical
control box. Secure the ground wire with the ground screw.
• Tighten screws of the terminal block securely, and fix the wires with code clamp attached to the electrical control
box. (Do not apply tension to the connecting section of the terminal block.)
• Mount the cover of the electrical control box so that it does not pinch the wires.
U
1 U
2
A B
L
1
L
2
Electrical control
box
P.C. board
Two screws
Terminal block
Ground screw
Remote control wires and control
wires
Hole for Remote control wires and
control wires
Conduit hole
Cord clamp
Control wiring/Remote
control terminal block
Power supply
terminal block
Wire partition plate
Pass the remote control wire and control wire
through the hole and behind this wire partition plate.
Power supply wires and
ground wire
17-EN 18-EN
+00EH99876401_00Ta.book Page 9 Monday, January 17, 2011 10:47 AM