Repair Procedures - Daikin VRV IV+ Service Manual

4 Third party components
Is the refrigerant field piping
conform with the regulations?
No
4.2.2

Repair procedures

To open the stop valves of the refrigerant circuit
Prerequisite: Remove the required plate work, see
work" on page 118.
1 Remove the caps.
a
a Liquid stop valve
b Gas stop valve
2 Completely open the stop valves by screwing the stop valve
screw counterclockwise.
Is the problem solved?
Yes
No
To replace the clogged/leaking part of the
refrigerant circuit
1 See the correct procedure for the component that needs to be
repaired. See also "Repair information" on page 138
details.
Is the problem solved?
Yes
No
Service manual
136
https://daikin-p.ru/catalog/vrv-daikn/naruzhnye-vrv-bloki-daikin
Action
Adjust the refrigerant field piping,
see "4.2.2 Repair procedures" on
page 136.
"3.13 Plate
b
Action
No further actions required.
Return to the troubleshooting of
the specific error and continue
with the next procedure.
for more
Action
No further actions required.
Return to the troubleshooting of
the specific error and continue
with the next procedure.
To recuperate the refrigerant
Prerequisite: Stop the unit operation (via the user interface, central
controller, operation switch, ...).
1 Necessary tools:
Service tool
Refrigerant recovery
unit
Scale
Manifold
Flexible hoses
Recovery cylinder
Vacuum pump
2 Setup a vacuum line between recovery unit discharge and the
recovery bottle. Without this additional setup, the discharge line
from the recovery device to the refrigerant cylinder would not
have been vacuumed.
3 Connect the vacuum pump, manifold, recovery unit, and
refrigerant recovery cylinder to the service ports of the
refrigerant circuit as shown below.
Remark
Compatible with the
refrigerant to be
recovered
Read-out / 10 grams
Compatible with the
refrigerant to be
recovered
Compatible with the
refrigerant to be
recovered
Compatible with the
refrigerant to be
recovered
2-stage, equipped
with solenoid valve
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ Heat Pump
ESIE18-14 – 2019.07