Instructions - Rittal

11 Technical specifications
Description SK3320.600 SK3334.600
Rated voltage 400 V / 3~ / PE 460 V / 3~ / PE 400 V / 3~ / PE 460 V / 3~ / PE
Mains frequency 50/60 Hz 60 Hz 50/60 Hz 60 Hz
Rated current 3.8/4.6 A 3.9 A 4.9/5.9 A 5 A
Start-up current 12.0/17.1 A 14.5 A 15.0/21.0 A 18 A
Pre-fuse 10 A 10 A 10 A 10 A
Rated output 1716/1953 W 1953 W 2001/2505 W 2505 W
Cooling output
Tw = water inlet temperature
Tu = ambient temperature
3000/3400 W
Tw = 18°C
Tu = 32°C
3400 W
Tw = 18°C
Tu = 32°C
4500/5400 W
Tw = 18°C
Tu = 32°C
5400 W
Tw = 18°C
Tu = 32°C
Refrigerant quantity 1.2 kg 1.2 kg 1.5 kg 1.5 kg
Max. permissible
pressure PS
HP 24 LP 11 bar HP 24 LP 11 bar HP 24 LP 11 bar HP 24 LP 11 bar
Refrigerant R134a R134a R134a R134a
Temperature range +15°C – +43°C +15°C – +43°C +15°C – +43°C +15°C – +43°C
Achievable
static pressure
Cooling medium
tank volume
1.45 – 3.2 bar /
2.25 – 5.4 bar
2.25 – 5.4 bar 1.45 – 3.2 bar /
2.25 – 5.4 bar
30 l 30 l 30 l 30 l
2.25 – 5.4 bar
Noise level 68 dB(A) 68 dB(A) 68 dB(A) 68 dB(A)
Protection category –
external circuit
Connections for cooling
medium circuit
IP 44 IP 44 IP 44 IP 44
2 x ½" internal
thread
2 x ½" internal
thread
2 x ½" internal
thread
Weight 88 kg 88 kg 94 kg 94 kg
Tab. 9 Technical specifications for 3320.600 and 3334.600
Antifreeze
Proportion of
antifreeze
We recommend:
Manufacturer Rittal
20 vol. % min.
30 vol. % max.
Type Rifrost
Ready-to-use mixture
(see table under Hydrological data)
2 x ½" internal
thread
Page 36 of 61
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