Connecting Power Wire And Transmission Wires; Power Circuit And Cable Requirements - Panasonic U-4ML3DPQ Manual De Instalación

10.4. Connecting power wire and transmission wires

Let the power wire (including ground wire) go through the power
outlet port on either the front, side or back of the outdoor unit.
Let the transmission wires go through the cable outlet port, pipe
outlet port or knock out hole on either the front, side or back of
the outdoor unit. (See figure 9).
A Rear direction
B Lateral direction
C Front direction
1 Power terminal block (X1M)
2 Control wiring between units
3 Power cable with ground wire. (Keep proper distance between
power cable and control wiring).
4 Clamp (field supply)
5 stop valve mounting plate
6 Ground
7 Electric parts box
8 Power cable
9 Ground cable (yellow/green)
10 Fix the control wiring with the clamps
11 Control PC board
12 Control terminal block (X1M)
13 Cable clamp with copper foil
14 Shield
Fix the shield area of the control wiring to the copper foil of the
clamp.
15 Screw
Precautions when knocking out knockout holes
To punch a knock hole, hit on it with a hammer.
After knocking out the holes, we recommend you paint the
edges and areas around the edges using the repair paint to
prevent rusting.
When passing electrical wiring through the knock holes, remove
any burrs from the knock holes and wrap the wiring with
protective tape to prevent damage.
If there is any possibility that small animals enter the system
through the knock holes, plug the holes with packing materials
(to be prepared on-site).
1 2
1 Knockout hole
2 Burr
3 Packing materials
Installation manual
12

10.5. Power circuit and cable requirements

A power circuit (see table below) must be provided for connection of
the unit. This circuit must be protected with the required safety
devices, i.e. a main switch, a slow blow fuse on the phase and an
earth leak detector.
Model
U-4ML3
U-5ML3
U-6ML3
3
Use a power wire pipe for the power wiring.
Outside the unit, make sure the low voltage electric
wiring (i.e. for the remote control, between units, etc.)
and the high voltage electric wiring do not pass near
each other, keeping them at least 50 mm apart.
Proximity may cause
malfunctions, and breakage.
Be sure to connect the power wiring to the power
wiring terminal block and secure it as described under
"10.4. Connecting power wire and transmission wires"
on page 12.
Inter-unit wiring should be secured as described in
"10.4. Connecting power wire and transmission wires"
on page 12.
• Secure the wiring with clamps so that it does not touch
the piping.
• Make sure the wiring and the electric box lid do not
stick up above the structure, and close the cover
firmly.
Phase and
frequency Voltage
1 N~50 Hz 230 V
NOTE Select the power supply cable in accordance with
relevant local and national regulations.
Wire size must comply with the applicable local
and national code.
Specifications for local wiring power cord and
branch wiring are in compliance with IEC60245.
WIRE TYPE H05VV(*)
*Only in protected pipes (use H07RN-F when
protected pipes are not used).
When installing the earth leak detector make sure that it is
compatible with the inverter (resistant to high frequency
electrical noise) to avoid unnecessary opening of the earth leak
detector.
In connecting the power cable to the power terminal block,
securely clamp the cable as shown in figure 9.
After finishing the electric work, confirm that each electric
part and terminal inside the electric parts box is connected
securely.
electrical interference,
Recommended Transmission
fuses line section
2
32 A
0.75~1.25 mm
U-4~6ML3DPQ
Urban Multi air conditioner
4PW17809-1C