Vertiv Liebert CRV4 Series User Manual

Vertiv | Liebert® CRV4 | User Manual 33
Mechanical Installation
3.4. Charging Refrigerant and Adding Lubricant Oil
3.4.1. Charging Refrigerant
The Liebert® CRV4 air-cooled series air conditioner is charged in the factory with 2 bar nitrogen for shipping.
Table 3-5, Table 3-6 and Table 3-7 are the standard refrigerant charge for outdoor (Vertiv™ Liebert® LSF/
Vertiv™ Liebert® LVC) and indoor units respectively.
Table 3-5 Refrigerant Charging Amount of the Liebert LSF Outdoor Unit (unit: kg)
Outdoor Unit Model LSF38 LSF42 LSF52 LSF62 LSF76 LSF85
Recommended charging amount 3.93 4.12 5.12 5.86 6.72 7.9
Table 3-6 Refrigerant Charging Amount of the Liebert LVC Outdoor Unit (unit: kg)
Outdoor Unit Model LVC088 LVC106 LVC140 LVC152 LVC170
Recommended charging amount 4.12 5.12 5.86 6.72 7.90
Table 3-7 Refrigerant Charging Amount of the Indoor Unit (unit: kg)
Indoor Unit Model CR025 CR035 CR045
Standard charging amount 2.47 3.12 3.44
The recharged amount of the refrigerant is calculated using the following formula:
Refrigerant relling amount (kg) = Recommended refrigerant charging amount of outdoor unit + recommended
refrigerant charging amount of indoor unit + refrigerant charging amount of per meter liquid pipe (kg/m) × total
length of liquid pipe (m)
Refer to the Table 3-8 for the refrigerant recharging amount of per meter liquid pipe for dierent ODs:
Table 3-8 Amount of Refrigerant per Unit Length of Liquid Pipe
Liquid Pipe
OD (mm)
Refrigerant Recharging Amount
of per meter Liquid Pipe (kg/m)
Liquid Pipe
OD (mm)
Refrigerant Recharging Amount of
per meter Liquid Pipe (kg/m)
12.7 0.107 22 0.321
16 0.174 25 0.431
19 0.245 28 0.517
For the refrigerant charging method, refer to Section 5.2.2 Commissioning Procedures.

Vertiv Liebert CRV4 Series Specifications

General

Brand	Vertiv
Model	Liebert CRV4 Series
Category	Air Conditioner
Language	English