User manual

Liebert DS Components and Nomenclature
5Liebert
®
DS
™
Figure 3 Liebert DS model number nomenclature
Not all combinations of options are available on all units.
Digital Scroll Compressors
• Not available on 077 and 105 models
• Not compatible with SCR reheat because digital scroll provides variable capacity control
EC Fans, Direct-Drive
• Not available on upflow (VS) configuration
• Liebert Econ-O-Coil
™
not available on 028, 035, 042 models with 208/230V
Steam Generating Canister Humidifier
• Not available on upflow (VS) configurations
• Not available on EC fan configurations
575 Volt Option Limitations
• EC fans not available on 105 model
• Digital scroll compressors available only on 053, 070 models
GLYCOOL Liebert Economizer Models
• 105 model requires semi-hermetic compressors only, so as to prevent potential coil freezing
Turning Vanes
• Not available on floor stands 6" (152.4mm) tall
• Not available or required on units with EC fans
Cooling Type
A = Air-Cooled
D = Dual-Cooling, Air-Cooled
W = Water/Glycol
K = GLYCOOL
H = Dual-Cooling, Water-Cooled
Nominal kW
028, 035, 042, 053, 070, 077, 105
(8, 10, 12, 15, 20, 22, 30 tons)
Air Distribution
DS = Downflow Standard
VS = Upflow Standard
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
DS035AUA0EI****
Compressor
U - Semi-hermetic with four-step, R-407C
S - Scroll, R-407C
D - Digital Scroll, R-407C
Fan Type
0 = Centrifugal Fans
1 = EC Fans
Humidification
0 - None
I - Infrared
S - Steam Generating
Canister
Reheat Type
0 - None
E - 3-stage electric
S - SCR
Voltage
A - 460/3/60
B - 575/3/60
C - 208/3/60
D - 230/3/60
2 - 380/3/60
Factory Configuration
Number