Panasonic S-22MU1E5A Technical Data Manual page 6

1. Electrical Wiring
(5) Use shielded wires for inter-unit control wiring (c) and
ground the shield on both sides, otherwise misoperation
from noise may occur. (Fig. 2-5)
Connect wiring as shown in Section "1-3. Wiring System
Diagrams".
(6) Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed
2
5 or 3 *1.5 mm flexible cord. Type designation 60245 IEC 57 (H05RN-F, GP85PCP etc.) or heavier
cord.
Use the standard power supply cables for Europe (such as H05RN-F or H07RN-F which conform to
CENELEC (HAR) rating specifications) or use the cables based on IEC standard. (60245 IEC57, 60245
IEC66)
WARNING
When connecting each power wire to the terminal, follow the instructions on "How to connect wiring to the terminal"
and fasten the wire securely with the fixing screw of the terminal board.
How to connect wiring to the terminal
For stranded wiring
(1) Cut the wire end with cutting pliers,
then strip the insulation to expose
the stranded wiring about 10 mm and
tightly twist the wire ends. (Fig. 2-6)
(2) Using a Phillips head screwdriver,
remove the terminal screw(s) on the
terminal board.
(3) Using a ring connector fastener or
pliers, securely clamp each stripped
wire end with a ring pressure terminal.
(4) Place the ring pressure terminal,
and replace and tighten the removed
terminal screw using a screwdriver.
(Fig. 2-7)
Examples of shield wires
(1) Remove cable coat not to scratch braided shield. (Fig. 2-8)
(2) Ravel braided shield carefully and put tightly braided shield
together.
Coat with insulation tube or wrap insulation tape after
putting tightly. (Fig. 2-9)
(3) Remove coat of signal wire. (Fig. 2-10)
(4) Connect signal wire removed coat and shield wire with
pressure terminal. (Fig. 2-11)
Earth wire for power supply
The earth wire should be longer than the other lead wires for
electrical safety.
Loose wiring may cause the terminal to overheat or result in unit malfunction.
A fire hazard may also occur.
Therefore, ensure that all wiring is tightly connected.
2-5
Ground
Stranded wire
Ring
pressure
terminal
Fig. 2-6
Screw
Special
washer
Ring pressure
terminal
Terminal board
Wire
Wire
Fig. 2-7
Fig. 2-8
Fig. 2-9
Fig. 2-10
Fig. 2-11
Design of VRF SYSTEM
Shielded wire
Ground
Fig. 2-5
Screw and
Special washer
Ring
pressure
terminal
Insulation tape
Shield mesh
Insulation tape Shield mesh
1
2
3
4
5
6
7
8
9