1-4-5. SIMPLE REMOTE CONTROLLER (UTY-RSKU, UTY-RHKU)
● Indoor unit addresses and refrigerant circuit addresses can be set up using simple remote controllers.
● This function allows setting the addresses of all indoor units to which a simple remote controller is being
connected.
● This function cannot be used to set up remote controller addresses.
Be sure to set them up using the rotary switches on the PCB of each indoor unit. (Refer to 1-3.)
● This function can be set up on both UTY-RSKU (With operation mode) and UTY-RHKU (Without operation
mode) types.
● This function cannot be used on the slave units.
PREPARATION
1) Make sure that all indoor unit address switches (IU AD x10, IU AD x1) and refrigerant
circuit address switches (REF AD x10, REF AD x1) on the PCB of each indoor unit are set
at 0 (factory setting).
Rotary switch
(type A)
SW601 SW602
SW604 SW605 SW606 SW607 SW608
Check the position “0”
(Factory setting)
IU AD x10
IU AD x1
REF AD x10
REF AD x1
● If any of the switches is positioned at a value other than 0, this function will not activate.
● The layout of the switches differs depending on the type of the indoor unit. (Refer to 2-2.)
2) If multiple indoor units are connected to a single simple remote controller, make sure to
manually set up the remote controller address (RC AD) on the PCBs of the indoor units.
(Refer to 1-3.)
Ex.) When four indoor units are connected
0 1 2 3
Indoor unit Indoor unit Indoor unit Indoor unit
RC AD RC AD RC AD RC AD
Wired
remote
controller
3) Turn on the power to the indoor unit.
● By turning on the power indoor units initializes EEV, so make sure the piping air-tight test and
vacuuming have been conducted before turning on the power.
● Also check again to make sure no wiring mistakes were made before turning on the power.
Indoor
units
Indoor
units
Breaker ON
- (07 - 39) -
FUNCTION
SETTING
FUNCTION
SETTING
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