Carrier TOSHIBA MML-UP0071H-UL Installation Manual page 13

 Wire connection
REQUIREMENT
• Connect the wires matching the terminal numbers.
Incorrect connection can cause problems.
• Pass the wires through the bushing of wire connection
holes of the indoor unit.
• Keep a margin (Approx. 3.9" (100 mm)) on a wire to
hang down the electrical control box for servicing or
other purpose.
• The low-voltage circuit is provided for the remote
control. (Do not connect it to high-voltage circuit)
• Run the power supply wire through a conduit pipe up
to the conduit mounting plate in the indoor unit.
(It is recommended to use a flexible conduit pipe.)
• Draw in the wire from the pipe hole (Knockout hole).
• Provide adequate length to the wire and fix it with
cord clamp as shown in the figure.
Indoor / Outdoor control wire
Electrical control box
Remote control
terminal block
Uv(U1) Uv(U2)
Ground screw
Power supply
terminal block
L1 L2
Cord clamp
Power supply wire
Control wire Remote control wire
between indoor
and outdoor units
Unit: in (mm)
0.8" (20)
1.2" (30)
L L
1 2
0.4" (10)
Ground wire
23-EN
CAUTION
Firmly tighten the screws of the terminal block.
Keep the wire length as shown in figure below when it
is connected to the terminal block.
Power supply wires and control
wire
 Remote control wiring
Strip off approx. 0.4" (9 mm) the wire to be connected.
A B
As the remote control wire has non-polarity, there is no
problem if connections to indoor unit terminal blocks A
and B are reversed.
▼Wiring diagram
Terminal block for
remote control wiring of Terminal block
indoor unit
A
A
B
B
Remote control wire
(Locally procured)
 Address setup
Set up the addresses as per the Installation Manual
supplied with the outdoor unit.
 Installation procedure for Single port type Flow Selector unit
1
Remove the two fixing screws inside of the
discharge port.
Unit: in (mm)
2
Insert your hand into the discharge port,
push up the back side a little, and then
remove the discharge port from the hooks at
rear side.
3
Remove the 3 screws that fix the operation
box.
Remote
control unit
– 12 –
4
Slightly lift up the front of the operation box
and remove it by pushing toward the top
while keeping it tilted.
5
Connect the Power supply and
communication lead wire of the Single port
type Flow Selector unit to CN081.
CN081
Flow Selector unit lead wire
Operation box
Flow Selector unit
power supply lead wire
EN
24-EN