6 Configuration
Installation and operation manual
16
RXYSQ6T7Y1B9
VRV IV-S system air conditioner
4P397285-1B – 2016.03
6.1
Making field settings
6.1.1
About making field settings
To configure the heat pump system, you must give input to the
outdoor unit's main PCB (A1P). This involves the following field
setting components:
▪ Push buttons to give input to the PCB
▪ A display to read feedback from the PCB
▪ DIP switches (only change the factory settings if you install a cool/
heat selector switch).
Field settings are defined by their mode, setting and value. Example:
[2‑8]=4.
PC configurator
For VRV IV-S heat pump system it is alternatively possible to make
several commissioning field settings through a personal computer
interface (for this, option EKPCCAB is required). The installer can
prepare the configuration (off-site) on PC and afterwards upload the
configuration to the system.
See also:
"6.1.9 To connect the PC configurator to the outdoor
Mode 1 and 2
Mode
Description
Mode 1
(monitoring
settings)
Mode 1 can be used to monitor the current
situation of the outdoor unit. Some field setting
contents can be monitored as well.
Mode 2
(field settings)
Mode 2 is used to change the field settings of
the system. Consulting the current field setting
value and changing the current field setting
value is possible.
In general, normal operation can be resumed
without special intervention after changing field
settings.
Some field settings are used for special
operation (e.g., 1 time operation, recovery/
vacuuming setting, manual adding refrigerant
setting, etc.). In such a case, it is required to
abort the special operation before normal
operation can restart. It will be indicated in
below explanations.
6.1.2
To access the field setting components
See
"5.1.1 To open the outdoor unit" on page 7
6.1.3
Field setting components
The components to make field settings are as follows:
BS2
SET
BS1
MODE
BS3
RETURN
BS4
TEST
BS5
RESET
H1P
H2P
H3P
H4P
H5P
H6P
H7P
H8P
A1P
A2P
X1M
X2M
1 2
OFF
ON
DS1
MULTI
DEMAND
L.N.O.P.
SLAVE
MASTER
IND
TEST/
HWL
MODE
DS1
DIP switches
BS1~BS5
Push buttons
H1P~H7P
7‑LEDs display
H8P
LED for indication during initialisation
ON (
) OFF ( ) Flashing (
)
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
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)
6.1.4
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.
Turn on the power supply of the outdoor unit and all indoor units.
When the communication between indoor units and outdoor unit is
established and normal, the display indication state will be as below
(default situation when shipped from factory).
