To Activate And Deactivate The Vacuum Mode Field Setting; To Perform Vacuum Drying - Daikin Altherma 3 H F Installer's Reference Manual

13 | Disposal

13.3 To activate and deactivate the vacuum mode field setting

13.4 To perform vacuum drying

Installer reference guide
200
b
a
e
a Liquid stop valve
b Closing direction
c Hexagonal wrench
d Valve lid
e Gas stop valve
To perform vacuum drying of the outdoor unit's internal refrigerant piping it is
necessary to activate the vacuum mode. This will open required valves in the
refrigerant circuit so the vacuuming process can be done properly.
To activate vacuum mode:
Activating the vacuum mode is done by operating the BS1 push button on the PCB
(A1P). Operate the switches and push buttons with an insulated stick (such as a
closed ball-point pen) to avoid touching of live parts.
When the unit is powered on and not running, push the BS1 push button 3 times
within a time frame of 10 seconds to activate vacuum mode.
To deactivate vacuum mode:
After vacuuming the unit, please deactivate the vacuum mode by pushing the BS1
push button 3 times within a time frame of 10 seconds.
Make sure to reattach the electronic component box cover and to install the front
cover after the job is finished.
NOTICE
Make sure that all outside panels, except for the service cover on the electrical
component box, are closed while working.
Close the lid of the electrical component box firmly before turning on the power.
NOTICE
▪
Connect the vacuum pump to both the service port of the gas stop valve and the
service port of the liquid stop valve to increase efficiency.
▪
Make sure that the gas stop valve and liquid stop valve are firmly closed before
performing the leak test or vacuum drying.
1 Vacuum the system until the pressure on the manifold indicates −0.1 MPa
(−1 bar).
2 Leave as is for 4-5 minutes and check the pressure:
c
d
d
EPGA11~16DAV3 + EAVH16SU18+23DA6V
Daikin Altherma 3 H F
4P606487-1 – 2019.12