Refrigerant
05.06.2015
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Copyright
2013 by: WATERKOTTE GmbH. Subject to changes.
9.4
Refrigerant charge and additional charge – EcoTouch Ai1 Air
(Power Inverter)
The outdoor units come fully charged with refrigerant R410A from the facto-
ry, allowing tube lengths (one way) up to 10 m without requiring additional
charging.
If tube lengths are less than 10 m, the charge in the outdoor unit is suffi-
cient. In new units, excess refrigerant must not be drained. However, to op-
timise the unit we recommend individual adjustment of refrigerant quantity
to total volume (refer to table).
Heat pump
Factory
pre-
charge
[kg]
Total charge at
line length (one way) [kg]
Power Invert-
er
11-20 m
21-30 m
31-40 m
41-50 m
51-60 m
61-75 m
>75m
5004.5
5006.5
2,1
0,2
0,4
0,6
not
possible
5008.5
3,2
0,2
0,4
1,0
not
possible
5011.5
5014.5
4,6
0,2
0,4
1,0
1,6
2,2
2,8
not
possible
If the tube length exceeds 10 m, charge unit with additional R410A refriger-
ant. Take care, that the tubes are not longer than (40 or 75 m)!
Outdoor unit
Between indoor and outdoor unit
Outer diameter of
connection-
lines
Power Inverter
Max. height dif-
ference H [m
Max. line length
L [m]
Max. number of
elbows
5004.5
5006.5
10 m
40 m
15
Liquid: Ø 6,35
Gas: Ø 12,7
5008.5
10 m
40 m
15
Liquid: Ø 10,0
Gas: Ø 16,0
5011.5
5014.5
30 m
75 m
15
Liquid: Ø 10,0
Gas: Ø 16,0
