Midea MFYA400-24HRFN8-QRD0W User Manual page 80

Minimum Cross-Sectional Area of
Power and Signal Cables (For reference)
Rated Current of
Appliance (A)
> 3 and ≤ 6
> 6 and ≤ 10
> 10 and ≤ 16
> 16 and ≤ 25
> 25 and ≤ 32
> 32 and ≤ 40
CHOOSE THE RIGHT CABLE SIZE
The size of the power supply cable, signal
cable, fuse, and switch needed is determined
by the maximum current of the unit. The
maximum current is indicated on the nameplate
located on the side panel of the unit. Refer to
this nameplate to choose the right cable, fuse,
or switch.
b. Using wire strippers, strip the rubber
jacketfrom both ends of the signal cable
to reveal approximately 15cm (5.9") of
wire.
c. Strip the insulation from the ends.
d. Using a wire crimper, crimp u-lugs on
the ends.
NOTE: When connecting the wires,
strictly follow the wiring diagram
found inside the electrical box cover.
2.
Remove the electric cover of the outdoor
unit.
3. Connect the u-lugs to the terminals
Match the wire colors/labels with the labels
on the terminal block. Firmly screw the u-lug
of each wire to its corresponding terminal.
4. Clamp down the cable with the cable clamp.
5. Insulate unused wires with electrical tape.
Keep them away from any electrical or metal
parts.
6. Reinstall the cover of the electric control
box.
Nominal Cross-Sectional
Area (mm )
0.75
1
1.5
2.5
4
6
Cover
Screw
INDOOR UNIT WIRING
1. Prepare the cable for connection
a. Using wire strippers, strip the rubber
jacket from both ends of the signal cable
to reveal about 15cm (5.9") of the wire.
b. Strip the insulation from the ends of the
wires.
c. Using a wire crimper, crimp the u-lugs to
the ends of the wires.
2. Undo the screw on the cover of the electric
control box and remove the cover.
3. Connect the u-lugs to the terminals.
Match the wire colors/labels with the labels
on the terminal block. Firmly screw the u-lug
of each wire to its corresponding terminal.
Refer to the Serial Number and Wiring
Diagram located on the cover of the electric
control box.
CAUTION
While connecting the wires, please
•
strictly follow the wiring diagram.
The refrigerant circuit can become
•
very hot. Keep the interconnection
cable away from the copper tube.
4. Clamp down the cable with the cable clamp.
The cable must not be loose or pull on the
u-lugs.
5. Reattach the electric box cover.
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