4
Set-up and installation
Installation and maintenance instructions
30
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1444099_00 – 07/2018 – EN
Fig. 4-46
Oil trap bend for refrigerant line
Item
Designation
A
Heat pump outdoor unit
B
Daikin Altherma EHS(X/H)
C
Gas line
D
Liquid line
E
Oil trap bend
H
Height to 1st oil trap (max. 10 m)
H
O
Height difference between heat pump outdoor unit and
heat pump indoor unit
Tab. 4-9
Legend for
4.8.2
Pressure test and filling the refrigerant
circuit
WARNING
The overall heat pump system contains refrigerants with
fluorinated greenhouse gases that are harmful to the envir-
onment when released.
Refrigerant type: R32
GWP* value: 675
*GWP = Global Warming Potential
▪ Enter the total filling quantity of refrigerant on the label
supplied on the external heat pump unit (for notes, see
Installation instructions for the heat pump outdoor unit).
▪ Never allow refrigerant to escape into the atmosphere -
always extract and recycle with a suitable recycling
device.
1
Perform pressure test with nitrogen.
▪ Use nitrogen 4.0 or higher.
▪ Maximum 40 bar.
2
After the leak search is complete, completely drain.
3
Vacuum lines.
▪ Pressure to be reached: 1 mbar absolute.
▪ Time: Minimum 1 h
4
Check whether additional refrigerant is needed for primer filling;
fill if necessary.
5
Open the stop valves on the exterior unit completely until the
stop. Slightly tighten.
6
Reinstall the valve caps.
7
Check that the storage tank temperature sensors are inserted to
a depth of t
DHW1
80 cm and t
DHW2
60 cm.
4.9
Filling the system
Only fill the Daikin Altherma EHS(X/H) after completion of all installa-
tion work in the order shown below.
4.9.1
Checking the water quality and adjusting
the pressure gauge
1
Comply with the instructions for the water connection (see Water
connection) and for the water quality.
2
Adjust the mechanical pressure gauge (mounted on site in ac-
cordance with Connecting hydraulic lines or temporarily installed
with filling hose): Turn the pressure gauge glass so that the min-
imum pressure marking corresponds to the
system 2 m
(1 m water column corresponds to 0.1 bar).
4.9.2
Filling hot water heat exchangers
1
Open the shutoff valve for the cold water supply pipe.
2
Open the hot water tap connections so that the draw-off volume
can be set as high as possible.
3
Once water has been discharged from the tap connections, do
not interrupt the cold water flow to ensure that the heat ex-
changer will be fully vented and that any impurities or residue
will be discharged.
4.9.3
Filling the storage tank
.
4.9.4
Filling the heating system
.
