Information; Notice - Daikin RXQ35AMV1B Installer's Reference Manual

RXQ-A_ARXQ-A
R32 split series
4P513661-11P – 2021.11
2 Leave as is for 4-5 minutes and check the pressure:
If the pressure...
Does not change
Increases
3 Vacuum the system for at least 2 hours to a manifold pressure of −0.1 MPa
(−1 bar).
4 After turning the pump OFF, check the pressure for at least 1 hour.
5 If you do NOT reach the target vacuum or CANNOT maintain the vacuum for
1 hour, do the following:
▪ Check for leaks again.
▪ Perform vacuum drying again.

NOTICE

Make sure to open the stop valves after installing the refrigerant piping and
performing vacuum drying. Running the system with the stop valves closed may
break the compressor.

INFORMATION

After opening the stop valve, it is possible that the pressure in the refrigerant piping
does NOT increase. This might be caused by e.g. the closed state of the expansion
valve in the outdoor unit circuit, but does NOT present any problem for correct
operation of the unit.
7 Piping installation
|
Then...
There is no moisture in the system.
This procedure is finished.
There is moisture in the system. Go
to the next step.
Installer reference guide
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