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The warranty clauses are no longer valid for any possible damage or malfunction that may occur during or due to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
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