25
Modellreihe CQO ... ASF (2)
541
621
802
1102
1302
1602
Max. Außentemperatur (a)
°C
46,3
44,6
49,6
46,3
49,3
47,1
max. Wasservolumenstom (b)
m³/h
13,2
15
19
26,3
32,5
39,9
min. Wasservolumenstom (c)
m³/h
6,2
7,1
9
12,4
15,3
18,8
Modellreihe CQO ... ASF (2)
1902
2402
2802
3702
4002
4602
5002
Max. Außentemperatur (a)
°C
45,5
47,4
45,8
42,5
47,4
45,9
44,9
max. Wasservolumenstom (b)
m³/h
45,7
59,5
68,1
83,8
99
111,5
120,4
min. Wasservolumenstom (c)
m³/h
21,6
28,1
32,1
39,6
46,6
52,6
56,9
© STULZ GmbH – all rights reserved EN/09.2019/G42
cybercool 2 scroll original insTrUcTions
Models CQO ... ASF (2)
Max. outdoor temperature (a)
°C
max. water volume flow (b)
m³/h
min. water volume flow (c)
m³/h
Models CQO ... ASF (2)
Max. outdoor temperature (a)
°C
max. water volume flow (b)
m³/h
min. water volume flow (c)
m³/h
Chilled water quality
NOtICE
Observe the following limits for the water circuit of the chiller.
Water properties and ingredients
Carbonate hardness
°dH
<4
Carbonate hardness when adding inhibitors
°dH
<20
Total hardness
°dH
<15
pH value
7.0 - 9.0
pH value with light metal*
7.0 - 7.5
Chloride content
mg/l
<100
Chloride content with austenitic steels
mg/l
<50
Free chlorine
mg/l
<0.05
Hydrogen sulphide
mg/l
<0.05
Ammonia (NH
3
/NH
4
+
)
mg/l
<0.05
Sulphate
mg/l
<100
Manganese
mg/l
<0.05
Iron
mg/l
<0,2
Sulphide
mg/l
<0.05
Free aggressive carbonic acid
mg/l
<15
Suspended solids
mg/l
<20
Number of germs
cfu/ml
<1000
Electric conductivity without inhibitors
µS/cm
10 - 500
Electric conductivity with inhibitors
µS/cm
<2200
cfu - colony forming units
*aluminium or titanium.
All data refer exclusively to the chiller.
NOtICE
• Check the water quality regularly.
