6.5 Adding refrigerant
The units contain a basic quantity of refrigerant. In
addition, an additional amount of refrigerant must
be added for refrigerant piping lengths exceeding 5
metres per circuit. Refer to the following chart:
Up to and
incl. 5 m
From 5 m to
max. length
ML 265 DC
0 g/m
20 g/m
ML 355 DC
ML 525 DC
ML 685 DC
40 g/m
CAUTION!
Wear protective clothing when handling refrig-
erant.
DANGER!
Only refrigerant in a liquid state may be used to
fill the cooling cycle!
NOTICE!
Check the overheating to determine the refrig-
erant fill quantity.
NOTICE!
The escape of refrigerant contributes to climatic
change. In the event of escape, refrigerant with
a low greenhouse potential has a lesser impact
on global warming than those with a high
greenhouse potential.
This unit contains refrigerant with a greenhouse
potential of 675. That means the escape of 1 kg
of this refrigerant has an effect on global
warming that is 675 times greater than 1 kg
CO
2
, based on 100 years. Do not conduct any
work on the refrigerant circuit or dismantle the
unit - always enlist the help of qualified experts.
6.6 Condensate drainage connec-
tion and safe drainage
3
2
4
9
5
5
11
100
6
8
7
10
10
12
12
1
Fig. 34: Condensate drainage, seepage of conden-
sate and strip foundation (cross-section)
1:
Outdoor unit
2:
Leg
3:
Condensate collection tray
4:
Floor bracket
5:
Reinforced strip foundation
HxWxD = 300x200x800mm
6:
Gravel layer for seepage
7:
Condensate drainage heating
8:
Drainage channel
9:
Conduit for refrigerant piping and electrical
connecting line (temperature-resistant up to at
least 60°C)
10: Frost line
11: Drainage pipe
12: Soil
31
