20
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Configuration
Installer and user reference guide
101
RXYSQ4~6T8V/YB
VRV IV-S system air conditioner
4P482277-1B – 2020.10
DIP switches
Only change the factory settings if you install a cool/heat selector switch.
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.
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.
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
7‑LEDs display
The display gives feedback about the field settings, which are defined as [Mode-
Setting]=Value.
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
Example:
H1P H2P H3P H4P H5P H6P H7P
-
+
+
+
+
+
[
H1P
32 16
8
4
2
1]
Description
(H1P OFF)
Default situation
(H1P flashing)
Mode 1
(H1P ON)
Mode 2
+
+
+
+
+
0
0
8
0
0
0
(H2P~H7P = binary 8)
Setting 8
(in mode 2)
+
+
+
+
+
0
0
0
4
0
0
(H2P~H7P = binary 4)
Value 4
(in mode 2)
20.2.4 To access mode 1 or 2
After the units are turned ON, the display goes to its default situation. From there,
you can access mode 1 and mode 2.
Initialisation: default situation
NOTICE
Be sure to turn ON the power 6 hours before operation in order to have power
running to the crankcase heater and to protect the compressor.
Содержание VRV IV-S RXYSQ4T8VB Series
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