Vertiv | Liebert PEX4 | User Manual 38
Installation
2.6.2. Refrigerant Requirement
The unit has a specically designed air conditioning system that requires a desired per-specied quality of
refrigerant (R410a) to perform continuously at the most optimum eiciency. For the details on the quantity of
refrigerant to be charged inside the system refer Table 2-12 and Table 2-13.
• Do not use refrigerant of inferior quality. For any consequences resulting from inferior quality refrigerant,
Vertiv does not assume warranty
responsibility.
Table 2-12 Indoor Refrigerant Charge (Unit: kg)
Indoor Model
P1035 P1045 P1050 P1060 P2070 P2080 P2090 P2100 P2110 P2120
Single
Circuit
Single
Circuit
Single
Circuit
Single
Circuit
Double
Circuit
Double
Circuit
Double
Circuit
Double
Circuit
Double
Circuit
Double
Circuit
Standard Charge 3.3 3.3 3.4 3.4 2x3.32 2x3.32 2x3.32 2x3.44 2x3.44 2x3.44
Table 2-13 Outdoor Refrigerant Charge (Unit: kg)
Outdoor Model
LSF52 LSF62 LSF70 LSF76 LSF85 LVC106 LVC140 LVC152 LVC170
Single
Circuit
Single
Circuit
Single
Circuit
Single
Circuit
Single
Circuit
Single
Circuit
Single
Circuit
Single
Circuit
Single
Circuit
Standard Charge 6.23 5.67 5.67 7.34 9.79 6.39 6.10 7.19 9.58
Refrigerant Charge = Charge of Indoor Unit + Charge of Outdoor Unit + (Refrigerant Charge per Unit
Length of Liquid Pipe x Length of Extended Pipe)
The system has a sufficient amount of oil for piping up to 50 m, if piping length exceeds 50 m
then additional oil is required in the system (equal to extra 6% of refrigerant amount). Unit for
extra oil quantity is expressed in litre (L).
Table 2-14 Amount of Refrigerant per Unit Length of Liquid Pipe (Unit: kg/m)
Liquid Pipe OD
(mm)
Refrigerant Charge per Unit
Length of Liquid Pipe (kg/m)
16 0.17
19 0.24
22 0.32
25 0.42
Please contact Vertiv local representative when operating under the following condition
• For non-standard vertical/ horizontal piping length based refrigerant amount.
• In case of dierent condenser.
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