14
Concealed Duct Higth Static Pressure Type (RAV-SM
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4DTP
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No.
1
2
3
4
5
Procedure
Take off the screws A and B then remove the terminal block assembly.
Using board installing spacer (A), install “1 : 1 Model” Connection Interface board to the position of electric parts box
of the indoor unit. (See the figure below.)
Using terminal block fixing screws, install U3, U4 terminal block to the position of electric parts box of the indoor unit.
(See the figure below.)
• When tightening the screws, be sure not to damage wires.
• Adhere the attached nameplate near the U3, U4 terminal block.
Connect the relay wire (A) from U3, U4 terminal block to CN40 (Blue) of “1 : 1 Model”
Connection Interface board. There is no polarity for wire connection.
Connect the relay wire (B) from CN50 (White) on the indoor P.C. board to CN51 (Red) on “1 : 1 Model” Connection
Interface board. (See the figure below.)
Return terminal block assembly to the original position without pinching wires.
Confirm to hook the claw of terminal block assembly on the right side.
Then screw A and B.
Details
CAUTION
After connection of the relay wires (A) and (B), bind them with banding band so that wires are not caught in. In this
CN50(White)
Terminal block assembly
Relay wire (B)
Screw B
CN40(Blue)
Screw A
1:1 model connection interface board
Fixing claw for terminal
block assembly
CN51(Red)
Relay wire (A)
Spacer (A) (3pcs)
U3, U4 terminal block
time, be sure not to bind the relay wires (A) and (B) together with the power supply lines such as power cable,
earth wire, etc.; otherwise a trouble may be caused.