Vertiv Liebert DA265 - Refrigerant Charge Requirements for Air Cooled Systems

6.2.4 Refrigerant Charge Requirements for Air Cooled Systems
The following tables provide the refrigerant charge requirements for the Liebert® DSE, connected piping, and condenser
options.
Indoor Unit Type Model Circuit 1 (Outercircuit), lb(kg) Circuit 2 (Innercircuit), lb(kg)
Air cooled DA250 25 (11.3) 25 (11.3)
Air cooled DA265 25 (11.3) 35 (15.9)
*System Charge: Indoor unit, MCV440 heat rejection skid with EconoPhase (PRE) and refrigerant lines.
For system charges over 200 lb. (90.7kg), consult your Vertiv representative.
See Table 9.3 on page47 for the recommended oil for the system.
The values in this table and in the following tables are needed in order to calculate the full system charge:
• Table 6.8 below
• Table 6.9 below
Table 6.7 Indoor Unit Approximate Refrigerant Charge for R-410A Per Circuit
Heat Rejection Skid* System # Circuit Number
Charge per Circuit, lb (kg) (With or
Without Receivers)
MCV440 Single skid with (1) PRE
unit
1
1 62 (28.1)
2 62 (28.1)
MCV440 Dual skid with (2) PRE units
1
1 62 (28.1)
2 62 (28.1)
2
1 62 (28.1)
2 62 (28.1)
*The heat rejection skid contains Liebert® MCV condenser(s), Liebert® DSE receiver(s) when used with a DA250 system, Liebert® EconoPhase PRE units(s),
and all internal piping. Liebert® DSE receivers are not used with a DA265 system.
Table 6.8 MCV Heat Rejection Skid Refrigerant Charge for R-410A per Circuit Including PRE
Line Size, OD, in. Liquid Line Hot Gas Line
1-3/8 51.5 (23.0) 5.9 (2.6)
1-5/8 — 8.4 (3.7)
Source: DPN003099, Rev. 1
Table 6.9 Interconnecting Piping Refrigerant Charge for R-410A, lb per 100ft (kg per 30m)
6 Piping and Refrigerant Requirements
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