Emerson Liebert MC Microchannel Outdoor Condenser 28 - 220kW User Manual
Piping
33
Liebert
®
MC
™
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. Tables 10, 11 and 12 provide the approximate charge required for the condensers 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
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 Liebert MC
Due to the much smaller coil volume, the performance, especially subcooling, of a Liebert MC
condenser is quite sensitive to the amount of refrigerant charge. Ensure that an accurate
amount of refrigerant charge is added.
Table 10
Refrigerant required, R-407C, approximate
Condenser
Models
Single Circuit, lb/circuit (kg/circuit)
Dual Circuit, lb/circuit (kg/circuit)
Condensers without
Liebert Lee-Temp
Condensers with
Liebert Lee-Temp
Condensers without
Liebert Lee-Temp
Condensers with
Liebert Lee-Temp
Approximate R-407C Refrigerant Needed
MCS028
2.2 (1.0)
21.0 (9.5)
N/A
N/A
MCM040
3.0 (1.4)
21.8 (9.9)
N/A
N/A
MCM080
7.5 (3.4)
44.5 (20.2)
3.0 (1.4)
21.8 (9.9)
MCM120
N/A
N/A
N/A
N/A
MCM160
N/A
N/A
7.5 (3.4)
44.5 (20.2)
MCL055
5.0 (2.3)
25.9 (11.7)
N/A
N/A
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)
N/A
N/A
MCL220
27.0 (12.3)
108.9 (49.4)
12.2 (5.6)
53.8 (24.4)
* Model MCM120 is available with Liebert DSE
™
receiver; a Liebert Lee-Temp receiver is not available with the unit.
Source: DPN002411, Rev. 3
Table 11
Refrigerant required, R-410A, approximate
Condenser
Models
Single Circuit, lb/circuit (kg/circuit)
Dual Circuit, lb/circuit (kg/circuit)
Condensers w/o
Liebert Lee-Temp
Condensers with
Liebert Lee-Temp
Condensers with
Liebert DSE
Condensers w/o
Liebert Lee-Temp
Condensers with
Liebert Lee-Temp
Condensers with
Liebert DSE
MCS028
2.5 (1.2)
18.3 (8.4)
N/A
N/A
N/A
N/A
MCM040
3.5 (1.6)
19.3 (8.8)
N/A
N/A
N/A
N/A
MCM080
8.5 (3.8)
39.6 (18.1)
N/A
3.5 (1.6)
19.3 (8.8)
N/A
MCM120
N/A
N/A
26.0 (11.8) *
N/A
N/A
N/A
MCM160
N/A
N/A
N/A
8.5 (3.8)
39.6 (18.1)
13 (5.9)
MCL055
5.0 (2.3)
24.2 (11.0)
N/A
N/A
N/A
N/A
MCL110
10.7 (4.9)
49.0 (22.2)
N/A
5.2 (2.4)
24.4 (11.1)
N/A
MCL165
18.4 (8.4)
79.9 (36.2)
33 (15)
N/A
N/A
N/A
MCL220
27.0 (12.3)
102.9 (46.7)
39 (17.7)
12.3 (5.6)
50.6 (23.0)
18 (8.2)
* Model MCM120 is available with Liebert DSE
™
receiver; a Liebert Lee-Temp receiver is not available with the unit.
Source: DPN002411, Rev. 3