19 Technical data
Installation and operation manual
37
RWEYQ8~14T9Y1B
VRV IV water-cooled system air conditioner
4P452190-1D – 2020.10
After correcting the abnormality, press BS3 to reset the malfunction
code and retry operation.
The malfunction code which is displayed on the outdoor unit will
indicate a main malfunction code and a sub code. The sub code
indicates more detailed information about the malfunction code. The
malfunction code will be displayed intermittent.
Example:
Code
Example
Main code
Sub code
With an interval of 1 second, the display will switch between main
code and sub code.
19
Technical data
▪ A
subset
of the latest technical data is available on the regional
Daikin website (publicly accessible).
▪ The
full set
of latest technical data is available on the Daikin
Business Portal (authentication required).
19.1
Service space: Outdoor unit
Make sure the space around the unit is adequate for servicing and
the minimum space for ventilation is available (refer to the figure
below).
(mm)
≥500
≥500
≥900
≥900
≥20
≥20
≥20
≥20
≥20
≥20
F
(mm)
≥300
F
Front side
INFORMATION
Further specifications can be found in the technical
engineering data.
19.2
Piping diagram: Outdoor unit
A
C
D
B
B
B
SV
SV
SV
M
SV
SV
HPS
SV
SV
SENPH
SENPL
4D108945A
A
Charge port
B
Stop valve (with service port
∅
7.9 mm flare
connection)
C
Cooling water inlet
D
Cooling water outlet
Charge port / Service port
Filter
Check valve
Pressure relief valve
Solenoid valve
Capillary tube
Electronic expansion valve
4‑way valve
Propeller fan
Port (for sensor)
Low/high pressure sensor
High pressure switch
Oil separator
Accumulator
