Daikin Sensira Series, Service Manual

Page: 133 / 172

3 | Third party components
Service manual
133
FTXF20~71A + FTXF20~25B + FTXF20~42C + ATXF20~71A + ATXF20~42C
+ RXF20~71A + RXF20~60B + RXF20~42C + ARXF20~71A + ARXF20~42C
Split Sensira R32
ESIE18-12E – 2021.02
3 Measure the pressure of the refrigerant. The measured pressure converted
into saturated temperature MUST be in line with the expected pressure /
saturated temperature at current ambient temperature.
4 If the measured pressure is significantly higher (>5K), non‑condensables
gasses are most likely present in the refrigerant.
Any non‑condensables found in the
refrigerant circuit? Action
Yes To replace the refrigerant, see
"3.2.2 Repair procedures" [
4
133].
No Return to the troubleshooting of the
specific error and continue with the
next procedure.
To perform a pressure test of the refrigerant circuit
1 Perform a pressure test in line with local legislation.
Is the pressure in the refrigerant circuit
correct? Action
Yes Return to the troubleshooting of the
specific error and continue with the
next procedure.
No Replace the leaking part of the
refrigerant circuit, see
"3.2.2 Repair
procedures" [
4
133].
3.2.2 Repair procedures
To open the stop valves of the refrigerant circuit
Prerequisite: Remove the required plate work, see "2.10 Plate work" [
4
101].
1 Remove the caps.
a
b
a Liquid stop valve
b Gas stop valve
2 Completely open the stop valves by screwing the stop valve screw
counterclockwise.