Daikin RXQ8PY1 - Page 248

Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705
242 Installation Manual
! All transmission wiring is to be procured on site. All wiring should use sheathed vinyl cord
0.75-1.25 mm
2
or cable (duplex). (Triplex only for the COOL/HEAT selector.)
! Transmission wiring (About the symbol 1 ~ 3, see figure 21, 22) should be done within the
following limitations.
If they are exceeded, transmission problems may occur.
1 Between outdoor unit and indoor unit
Between outdoor unit and outdoor unit of other systems
Max. wiring length : 1,000 m
Max. total wiring length : 2,000 m
Max. no. of branches : 16
[Note]
No branch is allowed after branch (See figure 23)
Max. no. of outdoor units of other system
that can be connected : 10
2 Between outdoor unit and outdoor unit of same system (Only for multi system)
Max. wiring length : 30 m
3 Transmission wiring to COOL/HEAT selector
Max. wiring length : 500 m
figure 23
Outdoor
unit
Transmission
wiring between
outdoor unit
and indoor unit
Transmission
wiring between
outdoor unit and
indoor unit
No branch is
allowed
after branch
Central remote control, etc.
Indoor unit
Indoor unit
Indoor unit Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unitIndoor unit
Indoor unit Indoor unit
Indoor unit
Indoor unit
Indoor unitIndoor unit
Transmission
wiring
between
outdoor unit
and outdoor
unit
Outdoor
unit
Outdoor
unit
Outdoor
unit
Branch line 1
Branch line 2
Branch line 1
Branch line 2
Branch line 3
Main line
Main line
No branch
is allowed
after branch