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Operation
Installer and user reference guide
31
RXYSQ4~6T8V/YB
VRV IV-S system air conditioner
4P482277-1B – 2020.10
WARNING
Never touch the air outlet or the horizontal blades while the swing flap is in
operation. Fingers may become caught or the unit may break down.
NOTICE
▪
The movable limit of the flap is changeable. Contact your dealer for details. (only
for double-flow, multi-flow, corner, ceiling-suspended and wall-mounted).
▪
Avoid operating in the horizontal direction
. It may cause dew or dust to
settle on the ceiling or flap.
8.5 Setting the master user interface
8.5.1 About setting the master user interface
g
d
d
c
c
f
e
b
a
g
f
e
a
VRV IV-S Heat pump outdoor unit
b
Refrigerant piping
c
VRV direct expansion (DX) indoor unit
d
User interface (dedicated depending on indoor unit type)
e
BP box (required to connect Residential Air (RA) or Sky Air (SA) direct expansion
(DX) indoor units)
f
Residential Air (RA) direct expansion (DX) indoor units
g
User interface (wireless, dedicated depending on indoor unit type)
When the system is installed as shown in the figure above, it is necessary to
designate one of the user interfaces as the master user interface.
The displays of slave user interfaces show
(change-over under centralised
control) and slave user interfaces automatically follow the operation mode
directed by the master user interface.
Only the master user interface can select heating or cooling mode.
8.5.2 To designate the master user interface