Daikin Altherma 3 H F - To Open the Stop Valves; To Manually Open the Electronic Expansion Valves

15 | Disposal
Installer reference guide
187
EPGA11~16DAV3(7) + EAVZ16S18+23DA6V(7)+9W
Daikin Altherma 3 H F
4P556075-1A – 2021.09
To recover refrigerant when power is ON
1 Make sure the unit is not running.
2 Make sure the stop valves are open (see "15.1.1 To open the stop
valves"[4187]).
3 Activate the recovery mode (see "15.1.3Recovery mode"[4188]).
Result: The unit opens the electronic expansion valves.
4 Recover refrigerant from the 3 service ports.
5 Deactivate the recovery mode (see "15.1.3Recovery mode"[4188]).
Result: The unit returns the electronic expansion valves to their initial state.
To recover refrigerant when power is OFF
1 Make sure the stop valves are open (see "15.1.1 To open the stop
valves"[4187]).
2 Manually open the valves (Y*) (see "15.1.2 To manually open the electronic
expansion valves"[4187]).
3 Recover refrigerant from the 3 service ports.
15.1.1 To open the stop valves
Before recovering refrigerant, make sure the stop valves are open.
a
b
c
a Service port and service port cover
b Stop valve
c Stop valve cover
1 Remove the stop valve cover.
2 Insert a hexagon wrench into the stop valve and turn counterclockwise to
open.
15.1.2 To manually open the electronic expansion valves
Before recovering refrigerant, make sure the electronic expansion valves are open.
When power is OFF, this has to be done manually.
c2
c1
1 2 3
c3
c1 Electronic expansion valve
c2 EEV coil
c3 EEV magnet
1 Remove the EEV coil (c2).
2 Slide an EEV magnet (c3) over the expansion valve (c1).