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9.3. Leading wire procedure
The power wiring and ground wiring are passed out from the power
wiring hole on the front (knock hole).
The transmission wiring is passed out from the wiring hole (knock
hole) on the front of the unit.
REYQ72T
1
2
4
3
1
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2
Knockout hole
3
Power line
4
Transmission line
REYQ72T
1
2
3
1
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2
Inspection door
3
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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.
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When passing wiring through the knock holes, remove burrs around
the knock holes and protect the wiring with protective tape.
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If small animals might enter the unit, block off any gaps (hatching
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9.4. Transmission wiring connection procedure
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tween outdoor unit and indoor unit, outdoor unit and outdoor unit of
other system, outdoor unit and outdoor unit of same system.
3P362438-5N English
REYQ96-168T
1
4
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co ro o co r
1
REYQ96-168T
2
3
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-
1
3
5
A1P
TO I N / D UNI T
TO OUT/D UNI T
TO MULTI UNI T
F1 F2
F1 F2
Q1 Q2
1
1
1
2
F1 F2
F1
TO OUT/D UNIT TO IN/D UNIT
2
11
F1 F2
12
3
F1 F2
F1
TO OUT/D UNIT TO BS UNIT
14
1
Master unit (*)
2
Sub unit (*)
3
Outdoor unit A
4
Outdoor unit B
5
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6
O
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7
O
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(There are no work when installation.)
8
Never connect the power wire.
9
To outdoor unit of other system
10
11
Branch Selector unit
12
Indoor unit
13
Indoor unit (Cooling only)
14
DOAS unit
(*) : The outdoor unit that connect the transmission wiring to
Branch Selector unit is Master unit of the multi system.
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unit A is the Master unit.)
Check operation in installation work, onsite settings and so
on are done 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.
Wiring to the indoor unit by way of Branch Selector unit should be
wired to F1 and F2 on the outdoor unit's terminal block (A1P_X1M).
The above wiring should be wired using AWG18-16 stranded, non-
shielded wiring.
All transmission wiring is to be procured onsite.
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
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7
7
2
4
6
5
6
A1P
TO MULTI UNI T
Q1 Q2
2
8
9
10
:
13
F2
F1 F2
F1
F2
1
1
TO OUT/D UNIT TO IN/D UNIT
F1 F2
11
F1 F2
F1 F2
F1 F2
F1 F2
12
F2
F1 F2
F1
F2
TO OUT/D UNIT
TO BS UNIT
14
*)
*)
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o o ri
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Tightening torque
0.59-0.71 ft
lbf (0.8-0.97 N
•
•
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oor
m)
20
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