18
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Configuration
Installer and user reference guide
100
R R8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
Mode 1 and 2
Mode
Description
Mode 1
(monitoring settings)
Mode 1 can be used to monitor the current situation of
the compressor 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.
18.2.2 To access the field setting components
"15.2.2 To open the compressor unit"
18.2.3 Field setting components
The components to make field settings differ depending on the model.
Model
Field setting components
5 HP
▪
Push buttons (BS1~BS5)
▪
7‑LEDs display (H1P~H7P)
▪
H8P: LED for indication during initialisation
▪
DIP switches (DS1)
8 HP
▪
Push buttons (BS1~BS3)
▪
7‑segments display (
)
▪
DIP switches (DS1 and DS2)
5 HP
BS2
SET
BS1
MODE
BS3
RETURN
BS4
TEST
BS5
RESET
H1P
H2P
H3P
H4P
H5P
H6P
H7P
H8P
1 2
OFF
ON
DS1
1 2 3 4
OFF
ON
DS1
1 2 3 4
OFF
ON
DS2
MULTI
DEMAND
L.N.O.P.
SLAVE
MASTER
IND
TEST/
HWL
MODE
8 HP
A1P
BS1 BS2 BS3
A1P
ON ( ) OFF ( ) Flashing ( )
ON ( ) OFF ( ) Flashing (
)
DIP switches
Only change the factory settings if you install a cool/heat selector switch.