2 Chapter 1 Preliminary Operations
Liebert.CRV Series Air Conditioner User Manual
Table 1-1 Center of gravity
Model
Distance from corner (unit: m)
x
y
z
X (±0.05m)
Y (±0.05m)
Z (±0.05m)
CR020
0.52
0.30
0.71
CR035
0.50
0.30
0.80
CR040
0.54
0.30
0.80
Note: The center of gravity on the Liebert.CRV varies with the options and the model’s size
Moving by a forklift and unit weight
The schematic diagram of moving the unit by a forklift is shown in Figure 1-1. The unit weight is given in Table 1-2.
Figure 1-1 Moving the unit by a forklift
Table 1-2 Unit weight (unit: kg)
Model
Power supply
Weight (±5%)
Air-cooled
Water/Glycol-cooled
Chilled water
CR020
380V ~ 415V/3-phase/50Hz
335
350
-
CR035
380V ~ 415V /3-phase/50Hz
365
385
-
CR040
380V ~ 415V /3-phase/50Hz
-
-
330
Note: Weights of full version units without packaging
1.3 Operating Limits
The units are designed to operate within working ranges (see Table 1-3 ~ Table 1-7). These limits are referred to new
machines or to those that have been correctly installed and serviced.
The warranty clauses are no longer valid for any possible damage or malfunction that may occur during or due to
operation outside the application values.
For all units
Table 1-3 Operating limits for all units
Item
From
To
Room air
conditions
Temperature
18°C
40°C
Humidity ratio
5.5g/kg
11g/kg
Relative humidity
20%
60%
Storage
conditions
Temperature
-20°C
50°C
Power supply
tolerances
Voltage
±10%
Frequency
±2Hz
