Daikin Altherma 3 M - Page 294

4 | Third party components
Service manual
294
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
4 Activate vacuum / recovery mode as described in "Recovery mode — In case
of 1N~ models (7-LEDs display)"[4294] or "Recovery mode — In case of 3N~
models (7-segments display)"[4295].
5 To make sure that refrigerant cycle is completely connected and there are no
dead-zones because of closed expansion valves, entering the vacuum /
recovery mode ensures that:
▪ all outdoor unit expansion valves get fully opened.
6 To add refrigerant, see "4.2.2Repair procedures"[4291].
Is the problem solved? Action
Yes No further actions required.
No Return to the troubleshooting of the
specific error and continue with the
next procedure.
Recovery mode — In case of 1N~ models (7-LEDs display)
Before recovering refrigerant, make sure the electronic expansion valves are open.
When power is ON, this has to be done by using the recovery mode.
Components
To activate/deactivate the recovery mode, you need the following components:
1N~
BS2
SET
BS1
MODE
BS3
RETURN
BS4
PUMP DOWN
H1P H2P H3P H4P H5P H6P H7P
DEMANDL.N.O.P.HWLMODE TEST
H1P~H7P 7‑LEDs display
BS1~BS4 Push buttons. Operate the push buttons with an insulated stick (such as a closed
ballpoint pen) to avoid touching of live parts.
To activate the recovery mode
INFORMATION
If you get confused in the middle of the process, press BS1 to return to the default
situation.
Before recovering refrigerant, activate the recovery mode as follows:
# Action 7-LEDs display
(a)
H1P H2P H3P H4P H5P H6P H7P
1 Start from the default situation.