18 | Configuration
Installer and user reference guide
101
RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
Model DIP switch
5HP ▪ DS1‑1: COOL/HEAT selector (refer to the manual of the
cool/heat selector switch). OFF=not installed=factory
setting
▪ DS1‑2: NOT USED. DO NOT CHANGE THE FACTORY
SETTING.
8HP ▪ DS1‑1: COOL/HEAT selector (see "14.5.3 Possible options
for the compressor unit and heat exchanger unit"[456]).
OFF=not installed=factory setting
▪ DS1‑2~4: NOT USED. DO NOT CHANGE THE FACTORY
SETTING.
▪ DS2‑1~4: NOT USED. DO NOT CHANGE THE FACTORY
SETTING.
Push buttons
Use the push buttons to make the field settings. Operate the push buttons with an
insulated stick (such as a closed ball-point pen) to avoid touching of live parts.
The push buttons differ depending on the model.
Model Push buttons
5HP ▪ BS1: MODE: For changing the set mode
▪ BS2: SET: For field setting
▪ BS3: RETURN: For field setting
▪ BS4: TEST: For test operation
▪ BS5: RESET: For resetting the address when the wiring is
changed or when an additional indoor unit is installed
8HP ▪ BS1: MODE: For changing the set mode
▪ BS2: SET: For field setting
▪ BS3: RETURN: For field setting
7‑LEDs display or 7-segments display
The display gives feedback about the field settings, which are defined as [Mode-
Setting]=Value.
The display differs depending on the model.
Model Display
5HP 7‑LEDs display:
▪ H1P: Shows the mode
▪ H2P~H7P: Shows the settings and values, represented in
binary code
(H8P: NOT used for field settings, but used during
initialisation)
8HP 7‑segments display ( )
Example: