Daikin VRV IV RXYQ TYDN Series Engineering Data page 29

Installation Manual
RXYQ72T
1
2 Inspection door
3 [Service precautions] Label location
NOTE
Open the knock holes with a hammer or similar tool.
After knocking out the holes, we recommend you remove any burrs
and paint the holes with repair paint to prevent rusting.
When passing wiring through the knock holes, remove burrs around
the knock holes and protect the wiring with protective tape.
If small animals might enter the unit, block off any gaps (hatching
9.4. Transmission wiring connection procedure
tween outdoor unit and indoor unit, outdoor unit and outdoor unit of
other system, outdoor unit and outdoor unit of same system.
1
3
5 6
A1P
TO I N / D UNI T TO OUT/D UNI T TO MULTI UNI T
F1 F2 F1 F2 Q1 Q2
8
1 1
1
2
3 Outdoor unit A
4 Outdoor unit B
5
6
7 (Only RXYQ – TYDN)
(There is no work when installation.)
8 Never connect the power wire.
9 To outdoor unit of other system
10
11 Indoor unit
3P362438-1B English
30
RXYQ96-168T
1
2
3
7 7
2
4
F1 F2
5 6
A1P
TO MULTI UNI T
Q1 Q2
2
9
1
The Outdoor unit that connects the transmission wiring to
2 an indoor unit is Master unit of the multi system.
3
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
Do not connect the power wiring to terminals for the transmission
wiring. Doing so would destroy the entire system.
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
M3.5 (A1P)
Transmission wiring (About the symbol [1]-[2], see the foregoing
[1] Between outdoor unit and indoor unit
Between outdoor unit and outdoor unit of other systems
[Note]
No branch is allowed after a branch. See the follow-
nected : 10
-
1
:
1 2 10
F1 F2 F1 F2
11
1 Branch
2 Branch after branch
[2] Between outdoor unit and outdoor unit of same system
RXYQ72T
1 (A1P)
X1M
1
2 Clamp (1) (accessory)
EDUS341411-N
Tightening torque
0.59-0.71 ft lbf (0.8-0.97 N m)
2
F1 F2 F1 F2 F1 F2
F1 F2 F1 F2
RXYQ96-168T
1 (A1P)
X1M
2
Installation of Outdoor Units
-
2
20
3P362438-1B