Panasonic S-22MU1E5 Instrucciones De Instalación página 22

CAUTION
(1) When linking the outdoor units in a network, disconnect the terminal extended from the short plug from all outdoor units
except any one of the outdoor units.
(When shipping: In shorted condition.)
For a system without link (no wiring connection between outdoor units), do not remove the short plug.
(2) Do not install the inter-unit control wiring in a way that forms a loop. (Fig. 4-3)
Outdoor unit Outdoor unit
Indoor unit Indoor unit
(3) Do not install inter-unit control wiring such as star branch wiring. Star branch wiring causes mis-address setting. (Fig. 4-4)
Outdoor unit Indoor unit
NO
Indoor unit
(4) If branching the inter-unit control wiring, the number of branch points should be 16 or fewer.
(Branches that are less than 1 m are not included in the total branch number.) (Fig. 4-5)
Outdoor unit
Indoor unit Indoor unit
more than 1 m
Branch
Point
Indoor unit Indoor unit
16 or fewer
more than 1 m
Indoor unit
less than 1 m
Indoor unit
(5) Use shielded wires for inter-unit control wiring (c)
and ground the shield on both sides, otherwise
misoperation from noise may occur. (Fig. 4-6)
Connect wiring as shown in Section "4-3. Wiring System
Diagrams".
Shielded wire
Ground Ground
Fig. 4-6
(6) 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. (245 IEC57, 245 IEC66)
Outdoor unit
Prohibited
Prohibited
Indoor unit Indoor unit Indoor unit
Indoor unit
Indoor unit
Branch point
Outdoor unit Outdoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit
WARNING
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.
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 terminal screw.
39
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. 4-7)
(2) Using a Phillips head screwdriver,
remove the terminal screw(s) on the
terminal plate.
(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,
Fig. 4-3
and replace and tighten the removed
terminal screw using a screwdriver.
(Fig. 4-8)
■ Examples of shield wires
(1) Remove cable coat not to scratch braided shield. (Fig. 4-9)
(2) Unbraid the braided shield carefully and twist the
unbraided shield wires tightly together. Insulate the shield
Fig. 4-4
wires by covering them with an insulation tube or wrapping
insulation tape around them. (Fig. 4-10)
(3) Remove coat of signal wire. (Fig. 4-11)
(4) Attach ring pressure terminals to the signal wires and the
shield wires insulated in Step (2). (Fig. 4-12)
■ Wining samples
U1 type
Clamper
(Field supply)
Fig. 4-5
Power Supply
Clamping Clip
Protective ground screw (External
Solenoid Valve Kit for 3WAY)
Stranded wire Special
Screw
washer
Ring
pressure
Ring pressure
terminal
terminal
Terminal plate
Wire
Fig. 4-7
Fig. 4-9
Insulation tape
Fig. 4-10
Insulation tape
Fig. 4-11
Fig. 4-12
T1 type
Protective ground screw (External Solenoid Valve Kit for 3WAY)
Remote Control
Wiring
Power Supply
Use this screw when connecting the shield
for the Inter-unit control wiring to ground.
Inter-unit Control
Wiring
Functional ground screw (External Electronic
Expansion Valve Kit and Schedule Timer)
Use this screw when connecting the shield
for the Inter-unit control wiring to ground.
Functional ground screw (External Electronic
Expansion Valve Kit and Schedule Timer)
40
Screw and
Special washer
Ring
pressure
terminal
Wire
Fig. 4-8
Shield mesh
Shield mesh
Remote Control Wiring
Inter-unit Control Wiring