6 Configuration
Installation and operation manual
18
RXYSQ4~6TAY1B
VRV IV-S system air conditioner
4P482256-1 – 2017.03
5.8
Finishing the outdoor unit
installation
5.8.1
To finish the transmission wiring
After installing the transmission wires inside the unit, wrap them
along with the on-site refrigerant pipes using finishing tape, as
shown in figure below.
a
b
c
d
e
a
Liquid pipe
b
Gas pipe
c
Insulator
d
Transmission wiring (F1/F2)
e
Finishing tape
6
Configuration
INFORMATION
It is important that all information in this chapter is read
sequentially by the installer and that the system is
configured as applicable.
DANGER: RISK OF ELECTROCUTION
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
Field settings are defined by their mode, setting and value. Example:
[2‑8]=4.
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
"5.1.1 To open the outdoor unit" on page 9
.
6.1.3
Field setting components
NOTICE
The DIP switches (DS1 and/or DS2 on A1P) are not used.
Do NOT change the factory setting.
The components to make field settings:
▪ Push buttons (BS1~BS5)
▪ 7‑LEDs display (H1P~H7P)
▪ H8P: LED for indication during initialisation
X1M
A1P
BS2
SET
BS1
MODE
BS3
RETURN
BS4
TEST
BS5
RESET
H1P
H2P
H3P
H4P
H5P
H6P
H7P
MODE
TEST:
L.N.O.P. DEMAND
C/H SELECT
HWL:
IND
MASTER SLAVE
H8P
MULTI
ON (
) OFF ( ) Flashing (
)
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.
Push buttons
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
Display
The display gives feedback about the field settings, which are
defined as [Mode-Setting]=Value.
Display
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
Example:
H1P H2P H3P H4P H5P H6P H7P
-
+
+
+
+
+
[
H1P
32 16
8
4
2
1]
Description
(H1P OFF)
Default situation
(H1P flashing)
Mode 1
Summary of Contents for RXYSQ4TAY1B
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