Liebert CR020 User Manual

Warning - Risk of refrigerant system rupture or explosion from
overpressurization
Risk of refrigerant system rupture or explosion from overpressurization. Can cause equipment damage, injury or death.
If a pressure relief device is not provided with the condenser unit, the system installer must provide and install a discharge
pressure relief valve rated for a maximum of 609 psig (42bar) in the high side refrigerant circuit. Do not install a shutoff valve
between the compressor and the field installed relief valve.
One or more additional pressure relief valves are required downstream of any and all fieldinstalled isolation. Do not isolate
any refrigerant circuits from overpressurization protection.
For systems requiring EU CE compliance (50Hz), the pressure relief valve must be CE certified to the EU Pressure
Equipment Directive by an EU ‘Notified Body’.
Digit Nomenclature
The unit is fully defined by twenty-five digits.
1 1 12 3 4 5
6 7 8 9 1011
.. ..
25
C R 0 2 0
Digit 1 and 2: Family
CR: Liebert.CRV
Digit 3, 4 and 5: Cooling
Capacity "kW" (approx.)
Nominal cooling capacity
Digit 6 - Air Discharge
R: Horizontal airflow
Digit 7 - System Type
A: System Type - Air cooled
W: System Type - Water cooled
C: System Type - Chilled Water
Digit 8 - Airflow
1: Airflow - EC Plug Fan
Digit 9 - Power Supply
0: Power Supply - 380V ~ 415V /3ph/50Hz+N
C: Power Supply - 208V/3ph/60Hz
A: Power Supply - 460V/3ph/60Hz
Digit 10 - Cooling System
2: Cooling System - CW with two way valve
3: Cooling System - CW with three Way
7: Cooling System - DX with digital scroll single
circuit R410A
Digit 11 - Humidification
0: Humidification - None
S: Humidification - Electrode humidifier
Digit 12 – Display
A: Display - Small Display 1 T+H Sensor
N: Display - Small Display 1 Temp Sensor Only
D: Display - Large Display 1 T+H sensor
C: Display - Large Display 1 Temp sensor Only
Digit 13 - Re-Heating
0: None
1: Electric heating 1 Level
Digit 14 - Air Filter
0: G4 (EU4)
1: F5 (EU5)
2: G4 (EU4) + Clogged Filter Alarm
3: F5 (EU5) + Clogged Filter Alarm
8: Merv 8 + Clogged Filter Alarm
9: Merv 11 + Clogged Filter Alarm
Digit 15 - Coil
1: Air cooled - water cooled two ways water valve
7: Water cooled 3 ways water valve
H: CW Standard coil

Liebert CR020 Specifications

General

Brand	Liebert
Model	CR020
Category	Air Conditioner
Language	English