Power Wiring Connection Procedure - Daikin VRV IV REYQ72TATJ Series Installation Manual

If they are exceeded, transmission problems may occur.
1 Between outdoor unit and Branch Selector (indoor) unit
Between outdoor unit and outdoor unit of other systems
Between outdoor unit and DOAS unit
Max. wiring length : 3280 ft. (1000 m)
Max. total wiring length : 6560 ft. (2000 m)
Max. no. of branches : 16
[Note] No branch is allowed after a branch. See the
following figure.
Max. no. of outdoor units of other system that can be con-
nected : 10
1
F1 F2
1 Branch
2 Branch after branch
2 Between outdoor unit and outdoor unit of same system
Max. wiring length : 98 ft. (30 m)
• The transmission wiring inside the control box should be secured
using the clamp (1) as shown in the figure below.
REYQ72T
1 (A1P)
X1M
2
• Outside the units, the transmission wiring must be finished simulta-
neously with the local refrigerant piping, and wound with tape (field
supply) as shown in the figure below.
4
2
1
5
4
3 4 6
• For multi system:
1 Transmission wiring between outdoor units in the same piping
system must be connected to terminals Q1 and Q2 (TO MULTI
UNIT).
Connecting the wires to the F1, F2 (TO OUT/D UNIT) terminals
results in system malfunction.
2 Wiring to other systems should be connected to terminals F1 and
F2 (TO OUT/D UNIT) on the printed circuit board of the master
unit. The outdoor unit that connects transmission wiring to indoor
unit is the master unit. The others are sub unit.
21
2
F1 F2 F1 F2
F1 F2 F1 F2
REYQ96-168T
1 (A1P)
X1M
2
1 In the control box
2 Clamp (1) (accessory)
1 Suction gas pipe
2 High/low pressure gas pipe
3 Liquid pipe
4 Insulation material
5 Finishing tape
6 Transmission wiring

9 .5 . Power wiring connection procedure

• Be sure to connect the power supply wiring to the power supply ter-
minal block and hold it in place using the included clamp as shown
in the figure below.
• The L1, L2 and L3 phases of the power wiring should be secured
separately to the hook using the included clamp (1).
• The ground wiring should be bound to the power wiring using the
included clamp (1) to prevent outside force from being applied to the
terminal area.
8 7
10
9
11
1
2
3
8
7
10 9
11
1
2
3
1 Power supply
(MODEL TAYD*: 3 ~ 460 V 60 Hz)
(MODEL TATJ*: 3 ~ 208/230 V 60 Hz)
2 Branch switch, Overcurrent breaker
3 Ground wire
4 Control box
5 (Only REYQ-TAYD*)
Control box (2)
6
(Only REYQ-TAYD*)
Do not open the control box (2) cover.
(There are no work when installation.)
7 Attach insulation sleeves
8 Power supply terminal block
9 Ground terminal
10 Clamp (1) (accessory)
11 Vinyl tube (accessory)
REYQ72T
6
4
5
REYQ96-168T
6
4
5
3P362438-5N English