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Wire Connection - Toshiba VN-M150HE Service Manual

Air to air heat exchanger concealed microcomputer control type
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Wire connection

Communication wire
terminal block
Wiring for the central
control (U3, U4)
Wiring for the remote
controller (A, B)
Power supply terminal
block (R(L), S(N))
External output terminal
block (1, 2, 3, 4, 5)
Operation output
Common
External damper output (3-4)
Abnormal/Bypass mode
output (3-5)
Power supply wire
30
S(N)
R(L)
30
REQUIREMENT
• Pass the wires through the grommet of wiring connection holes of the Air to Air Heat Exchanger.
• Keep a margin (Approx. 100 mm) on a wire.
• The low-voltage circuit is provided for the remote controller.
• Rotate the electrical control base to open.
• Connect the power supply wire (R (L), S (N)) and the remote control wire (A, B).
• Connect the central control wire (U1/U3, U2/U4) or the external output terminal block (1 to 5) if necessary.
• Tighten the screws on the terminal board firmly, then fix the wiring on the electrical control box using the
accessory cord clamp.
• Perform grounding work.
Central control wire
Earth line
10
In a central control system, connect
the copper braid shield of central
control wire (2-core shielded wire).
15
107
Remote
controller wire
Central control
wire
Earth screw
Grommet
Power supply
wire
Electrical control
box
Remote controller wire
10
15

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