Hitachi RCD-0.8FSN3 Installation And Operation Manual page 32

ELECTRICAL WIRING
8 Remote control switch connection
a. Installing remote control switch to each unit with
individual operation setting
Indoor unit
Outdoor unit
Remote
control
switch
b. Installing one remote control switch to multiple units for
individual operation setting
Indoor unit
Outdoor unit
Remote
control
switch
c. Simultaneous operation. The indoor unit is H-LINK II
model.
Indoor unit
Outdoor unit
Remote
control
switch
Set DSW6-1 OFF
?
N O T E
(*) This indoor unit is adopted 4 steps of fan speed (HIGH 2, HIGH,
MED and LOW). When installing this indoor unit with 3 steps of fan
speed type, connect the remote control switch to 4 steps of fan speed
type. If not, "HIGH 2" will not be indicated and can not be selected.
28 PMML0425A rev.0 - 02/2016 - P5415720
Indoor unit
Remote
control
switch
The transition wiring
Indoor unit
for the remote control
switch is required
Indoor unit
The simultaneous operation is
(*) available up to 4 indoor units.
(This connection is not
available for VRF
(SET-FREE System))
d. Connecting remote control switch in case of connecting
between refrigerant cycles.
Indoor unit Indoor unit
Outdoor
unit
Remote
Remote control switch
control switch
Individual
(Thermo ON/OFF individually)
?
N O T E
• The dip switches setting in the outdoor unit should be performed
according to Installation and Operation Manual of the outdoor
unit.
• Pay attention that the transition wiring for the remote control
switch is required in the following cases:
a The following functions are set to the sub unit which is not
installed the remote control switch.
- "Remote ON/OFF function, 1, 2 and 3" (External Input /
Output Function)
- "Power supply ON/OFF function, 1 and 2" (Function
Selection)
- "Prohibiting remote control after manual stoppage" (External
Input / Output Function)
- "Group setting by the centralized controler"
b The combination of twin, triple or quad is controlled by one
remote control switch.
c The address of the indoor unit is changed from the remote
control switch.
d The multiple panels with the motion sensor are controlled by
one remote control switch.
Indoor unit Indoor unit
Outdoor
unit
Individual
remote
control switch
Simultaneous