Daikin Altherma 3 HT - Disposal; To Recover Refrigerant

15 | Disposal
Installer reference guide
254
EPRA14~18D + ETVH/X16S18+23E
Daikin Altherma 3 H HT F
4P644737-1A – 2022.03
15 Disposal
NOTICE
Do NOT try to dismantle the system yourself: dismantling of the system, treatment of
the refrigerant, oil and other parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for reuse, recycling and recovery.
In this chapter
15.1 To recover refrigerant ............................................................................................................................................................ 254
15.1.1 To manually open the electronic expansion valves............................................................................................... 255
15.1.2 Recovery mode....................................................................................................................................................... 256
15.1 To recover refrigerant
When disposing of the outdoor unit, you need to recover its refrigerant.
▪ Use the service port (a) to recover refrigerant.
▪ Make sure the valves (Y1E, Y3E, Y2S, Y3S, Y4S) are open. If they are not open
during refrigerant recovery, refrigerant remains trapped in the unit.
a
Y2S
Y3S
Y4S
Y3E
Y1E
a Service port 5/16" flare
Y1E Electronic expansion valve (main)
Y3E Electronic expansion valve (injection)
Y2S Solenoid valve (low pressure bypass)
Y3S Solenoid valve (hot gas bypass)
Y4S Solenoid valve (liquid injection)
To recover refrigerant when power is ON
WARNING
Rotating fan. Before powering ON or servicing the outdoor unit, make sure that the
discharge grille covers the fan as protection against a rotating fan. See:
▪ "7.3.6To install the discharge grille"[476]
▪ "7.3.7To remove the discharge grille, and put the grille in safety position"[478]
1 Make sure the unit is not running.
2 Activate the recovery mode (see "15.1.2Recovery mode"[4256]).
Result: The unit opens the valves (Y*).