Daikin RXYQ6BRY16 Installation Manual page 36

Referring to the figure below, connect the
•
transmission wiring between outdoor unit and indoor
unit, outdoor unit and outdoor unit of other system,
outdoor unit and outdoor unit of same system.
In order to reduce the risk of PCB failure due to
•
contamination, the A1P has been sealed off and a
relay terminal block X2M will be used for wire
connection. X2M is equivalent of A1P connection
below table.
TO IN/D UNIT
A1P F1
X2M X0
For the below wiring, always use vinyl cords with 0.75
to 1.25 mm shielded or cables (2-core wires).
2
To cope CISPR 14-1 standard shielded wire shall be
applied, select wire type accordance with each country
legislation.
(3-core wire cables are allowable for the cooler/heater
selector only.)
A1P X2M
1
3
5
X2M
X0 X1 X2 X3 X4 X5
1 1
1 2
F1 F2
1 Master unit (*)
2 Sub unit (*)
3 Outdoor unit A
4 Outdoor unit B
5 Electrical components box
6 Never connect the power wire.
7 To outdoor unit of other system
8 Use duplex wires (No polarity)
9 Indoor unit
(*): The outdoor unit that connect the transmission wiring
to an indoor unit is Master unit of the multi system.
And the other units are Sub unit. (In this figure,
outdoor unit A is the Master unit.)
Check operation in installation work, onsite settings
and so on are done by operating the PC-board (A1P)
of Master unit.
Wiring to the indoor unit should be wired to X0 and
•
X1 on the outdoor unit's terminal block (X2M).
Never connect the power supply to transmission
•
wiring terminal block. Otherwise the entire system
may break down.
34
01_EN_3P748230-1.indd 34
TO OUT/D UNIT TO MULTI UNIT
F2 F1 F2 Q1
X1 X2 X3 X4
A1P X2M A1P X2M
2
4
5
X2M
X4 X5
2
6
7
:
8
F1 F2 F1 F2
9
NOTICE
Be sure to keep the power line and transmission
•
line apart from each other. Transmission wiring
and power supply wiring may cross, but may not
run parallel.
Transmission wiring and power supply wiring
•
may not touch internal piping (except INV PCB
cooling pipe) in order to avoid wire damage
due to high temperature piping.
Firmly close the lid and arrange the electrical
•
Q2
wires so as to prevent the lid or other parts
X5
from coming loose.
When using a shielded wire, be sure to
•
connect ground only one end of the shielded
wire (at the outdoor unit).
See "12.6 Connection of wiring to terminal".
If grounding is not connected at one end or
connected to both ends, a communication
failure may occur.
12.5.2 Procedure for Wiring Inside Units
The power wiring and ground wiring are passed out
•
from the power wiring hole on the front (slit hole).
The transmission wiring is passed out from the wiring
•
hole (slit hole) on the front of the unit.
1 Slit hole
2 Power line
3 Transmission line
1 Electrical component box cover
2 Inspection door
3 [Service precautions] Label location
4 Wiring diagram printed on the back of the electrical
component box cover.
1
2
3
1
3
2
4
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