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Installer reference guide
266
ERGA04~08EA + EHBH/X04+08EF
Daikin Altherma 3 R W
4P629085-1B – 2021.11
NOTICE
Before pump down.
Before using the unit's automatic pump down function, do the
following settings:
▪
Set [C-07]=0 (or [2.9]:
Main zone
>
Control
=
Leaving water
)
▪
Set [E-08]=0 (or [9.F]:
Installer settings
>
Power saving function
=
No
)
Pump down operation will extract all refrigerant from the system into the outdoor
unit.
1
Remove the valve lid from the liquid stop valve and the gas stop valve.
2
Install a manifold on the gas stop valve.
3
Start the pump down operation via the user interface integrated in the indoor
unit:
1
Set the user permission level to
Installer
—
2
Go to [A.5]:
Commissioning
>
Pump down
.
3
Select
Pump down
.
4
Select
OK
to confirm.
Result:
The pump down operation starts. It stops automatically
when done.
To stop the pump down operation manually:
—
1
In the menu, go to
Stop pump down
.
2
Select
OK
to confirm.
4
After 5 to 10 minutes (after only 1 or 2 minutes in case of very low ambient
temperatures (<−10°C)), close the liquid stop valve with a hexagonal wrench.
5
Check on the manifold if the vacuum is reached.
6
After 2-3 minutes, close the gas stop valve and stop the pump down
operation.
a
c
b
d
d
e
a
Liquid stop valve
b
Closing direction
c
Hexagonal wrench
d
Valve lid
e
Gas stop valve
Summary of Contents for Altherma 3 R W
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