Daikin RDXYQ5T8V1B Installer And User Manual page 107

RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
Setting (
[1‑5]
Shows the total number of connected
units (heat exchanger unit + indoor
units).
[1‑14]
Shows the latest malfunction code.
[1‑15]
Shows the 2nd last malfunction code.
[1‑16]
Shows the 3rd last malfunction code.
7‑segments display – Mode 1
(in case of 8 HP)
You can read out the following information:
Setting
[1‑1]
Shows the status of
low noise operation.
)
It can be convenient to check if the total
number of units which are installed
(heat exchanger unit + indoor units)
match the total number of units which
are recognised by the system. In case
there is a mismatch, it is advised to
check the communication wiring path
between compressor unit and heat
exchanger unit, and between
compressor unit and indoor units (F1/F2
communication line).
When the latest malfunction codes
were reset by accident on an indoor
unit user interface, they can be checked
again through this monitoring settings.
For the content or reason behind the
malfunction code see
problems based on error
where most relevant malfunction codes
are explained. Detailed information
about malfunction codes can be
consulted in the service manual of this
unit.
To obtain more detailed information
about the malfunction code, press BS2
up to 3 times.
Value / Description
0 Unit is currently not operating under low noise
restrictions.
1 Unit is currently operating under low noise
restrictions.
Low noise operation reduces the sound generated by the
unit compared to nominal operating conditions.
Low noise operation can be set in mode 2. There are two
methods to activate low noise operation of the
compressor unit and heat exchanger unit.
▪ The first method is to enable an automatic low noise
operation during night time by field setting. The unit will
operate at the selected low noise level during the
selected time frames.
▪ The second method is to enable low noise operation
based on an external input. For this operation an
optional accessory is required.
18 Configuration
|
Value / Description
"22.3 Solving
4
codes" [
Installer and user reference guide
124],
107