Table of Contents
Fig. 4-46
Oil trap bend for refrigerant line
Item
Designation
A
Heat pump outdoor unit
B
Indoor unit
C
Gas line
D
Liquid line
E
Oil trap bend
H
Height to 1st oil trap (max. 10 m)
H
Height difference between heat pump outdoor unit and
O
heat pump indoor unit
Tab. 4-10 Legend for
Fig. 4-46
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.
Daikin Altherma EHS(X/H)(B)-D
Heat pump (indoor unit) with integrated heat accumulator
008.1444099_01 – 11/2018 – EN
4
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
80 cm and t
DHW1
DHW2
4.9
Filling the system
Only fill the indoor unit after all installation work is completed 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 height +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
see
Chap.
7.2.1.
4.9.4
Filling the heating system
see
Chap.
7.2.2.
Set-up and installation
60 cm.
Installation and maintenance instructions
29
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