Vertiv Liebert MCM080 - Refrigerant Planning Values

Item No. Description Qty
12 Copper Tube 7/8” Swaged 1
15 Support Leg 1
16 Fastener Assembly: Cap Screw, Lock Washer, Fender Washer 4
5.3 Refrigerant Planning Values
Planning for the refrigerant requirements of the completed system is the total of the charges from Indoor
Unit, Condenser (including Liebert Lee-Temp™ receiver, if used) and the interconnecting piping. Table 5.5
below, Table 5.6 on the next page, Table 5.8 on page78 and Table 5.9 on page80 provide the
approximate charge required for the condensers, recommended refrigerant pipe sizes and the
interconnecting piping. Consult indoor unit manuals for indoor unit charge requirements.
These values can be used for obtaining adequate refrigerant for the system, but should not be used for
final charging.
NOTE: Due to the much smaller coil volume, the performance, especially subcooling, of a LiebertMC
condenser is quite sensitive to the amount of refrigerant charge. Ensure that an accurate amount of
refrigerant charge is added.
Condenser Models Single Circuit, lb/circuit (kg/circuit) Dual Circuit, lb/circuit (kg/circuit)
Approximate
R-407C
Refrigerant Needed
Condensers without
Liebert Lee-Temp
Condensers with
Liebert Lee-Temp
Condensers without
Liebert Lee-Temp
Condensers with
Liebert Lee-Temp
MCS028 2.2 (1.0) 23.1 (10.5) — —
MCS056 N/A N/A 2.2 (1.0) 23.1 (10.5)
MCM040 3.0 (1.4) 23.9 (10.8) N/A N/A
MCM080 7.5 (3.4) 44.5 (20.2) 3.0 (1.4) 23.9 (10.8)
MCM160 — — 7.5 (3.4) 44.5 (20.2)
MCL055 5.0 (2.3) 25.9 (11.7) — —
MCL110 10.5 (4.8) 52.1 (23.7) 5.1 (2.3) 26.0 (11.8)
MCL165 18.3 (8.3) 84.8 (38.5) — —
MCL220 27.0 (12.3) 108.9 (49.4) 12.2 (5.6) 53.8 (24.4)
Source: DPN002411, Rev. 7
Table 5.5 Refrigerant required, R-407C, approximate
Vertiv | Liebert® MC™ Installer/User Guide | 75