Daikin VRV IV RXYQ TYDN Series - 9.4. Transmission wiring connection procedure; 9.5. Power wiring connection procedure

Installation Manual EDUS341411-N
30 Installation of Outdoor Units
3P362438-1B
20
3P362438-1B English
RXYQ72T
1
2
3
RXYQ96-168T
1
2
3
1 %QPVTQNDQZEQXGT
2 Inspection door
3 [Service precautions] Label location
NOTE
r Open the knock holes with a hammer or similar tool.
r After knocking out the holes, we recommend you remove any burrs
and paint the holes with repair paint to prevent rusting.
4GHGTVQVJGCDQXGƂIWTGU
r When passing wiring through the knock holes, remove burrs around
the knock holes and protect the wiring with protective tape.
4GHGTVQVJGCDQXGƂIWTGU
r If small animals might enter the unit, block off any gaps (hatching
RCTVUKPVJGCDQXGƂIWTGUYKVJOCVGTKCNƂGNFUWRRN[
9.4. Transmission wiring connection procedure
r 4GHGTTKPIVQVJGƂIWTGDGNQYEQPPGEVVJGVTCPUOKUUKQPYKTKPIDG-
tween outdoor unit and indoor unit, outdoor unit and outdoor unit of
other system, outdoor unit and outdoor unit of same system.
65
11
2
9
TO IN/D UNIT
F1 F2
TO OUT/D UNIT
F1 F2
TO MULTI UNIT
Q1 Q2
A1P
TO MULTI UNIT
Q1 Q2
21
43
A1P
65
12:
10
11
F1 F2 F1 F2 F1 F2
7 7
8
1 /CUVGTWPKV
2 5WDWPKV
3 Outdoor unit A
4 Outdoor unit B
5 %QPVTQNDQZ
6 1PN[4:;3s6;&0%QPVTQNDQZ
7 (Only RXYQ – TYDN)
&QPQVQRGPVJGEQPVTQNDQZEQXGT
(There is no work when installation.)
8 Never connect the power wire.
9 To outdoor unit of other system
10 7UGFWRNGZYKTGU0QRQNCTKV[
11 Indoor unit
 The Outdoor unit that connects the transmission wiring to
an indoor unit is Master unit of the multi system.
6JGQVJGTWPKVUCTG5WDWPKVU+PVJKUƂIWTG1WVFQQTWPKV#
is the Master unit.)
Check installation work to ensure proper operation. Onsite
settings can be accomplished by operating the printed
circuit board (A1P) of Master unit.
NOTE
r Do not connect the power wiring to terminals for the transmission
wiring. Doing so would destroy the entire system.
r When connecting wires to the terminal block on the printed circuit
board, too much heat or tightening could damage the printed circuit
board. Attach with care.
See the table below for the tightening torque of the transmission
wiring terminals.
Screw size Tightening torque
M3.5 (A1P)
0.59-0.71 ft
x
lbf (0.8-0.97 N
x
m)
r Transmission wiring (About the symbol [1]-[2], see the foregoing
ƂIWTGUJQWNFDGFQPGYKVJKPVJGHQNNQYKPINKOKVCVKQPU
+HVJG[CTGGZEGGFGFVTCPUOKUUKQPRTQDNGOUOC[QEEWT
[1] Between outdoor unit and indoor unit
Between outdoor unit and outdoor unit of other systems
/CZYKTKPINGPIVJHVO
/CZVQVCNYKTKPINGPIVJHVO
/CZPQQHDTCPEJGU
[Note]
No branch is allowed after a branch. See the follow-
KPIƂIWTG
/CZPQQHQWVFQQTWPKVUQHQVJGTU[UVGOVJCVECPDGEQP-
nected : 10
1
2
F1 F2 F1 F2
F1 F2 F1 F2
F1 F2
1 Branch
2 Branch after branch
[2] Between outdoor unit and outdoor unit of same system
/CZYKTKPINGPIVJHVO
r 6JGVTCPUOKUUKQPYKTKPIKPUKFGVJGEQPVTQNDQZUJQWNFDGUGEWTGF
WUKPIVJGENCORCUUJQYPKPVJGƂIWTGDGNQY
RXYQ72T
1 (A1P)
X1M
2
2
1 (A1P)
X1M
RXYQ96-168T
1 +PVJGEQPVTQNDQZ
2 Clamp (1) (accessory)