19
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Configuration
Installer and user reference guide
101
RXYTQ
VRV IV+ heat pump for high ambient temperatures
4P561157-1B – 2021.11
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.
See also:
▪
"19.2.4 To access mode 1 or 2"
▪
▪
▪
"19.2.7 Mode 1: Monitoring settings"
▪
"19.2.8 Mode 2: Field settings"
19.2.2 Field setting components
Location of the 7‑segment displays, buttons and DIP switches:
a
b
BS1 BS2
DS1 DS2
BS3
X27A
BS1
MODE: For changing the set mode
BS2
SET: For field setting
BS3
RETURN: For field setting
DS1, DS2
DIP switches
a
7‑segment displays
b
Push buttons
19.2.3 To access the field setting components
It is not required to open the complete electronic component box to access the
push buttons on the PCB and read out the 7‑segment display(s).
To access you can remove the front inspection cover of the front plate (see figure).
Now you can open the inspection cover of the electrical component box front plate
(see figure). You can see the three push buttons and the three 7‑segment displays
and DIP switches.
