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Technical Specifications

ManualsBrandsEmerson ManualsRacks and Integrated SolutionsEmerson Liebert XD Piping System Flexible Piping for Liebert XD System
121122123124125126127128129130
Heat Rejection
118
Table 49 Minimum recommended control circuit wire size, AWG, 60 Hz models
Control Wire
Run, ft (m)
Drycooler Types With Pump Controls
DSF DDF DSO DDO
Number of Fans Number of Fans
1 1 123468123468
0-25 (0-7.6) 16 16 161616161616161616161616
26-50 (7.9-15.2) 16 16 16 16 16 16 16 14 16 14 14 14 14 14
51-75 (15.5-22.8) 16 16 16 16 16 16 14 14 14 14 14 12 14 14
76-100 (23.2-30.4) 16 16 161616161212121212121212
101-125 (30.8-38.1) 16 14 16 16 14 14 12 12 12 10 10 10 10 10
126-150 (38.4-45.7) 16 14 16 14 14 14 10 12 10 10 10 10 10 10
Control Wire
Run, ft (m)
Drycooler Types Without Pump Controls
(D)DNL (D)DNT
Number of Fans
1-46 & 8123468
0-25 (0-7.6) 16 16 16 16 16 16 16 16
26-50 (7.9-15.2) 16 16 16 16 16 16 16 16
51-75 (15.5-22.8) 16 16 16 16 16 16 16 14
76-100 (23.2-30.4) 16 16 16 16 16 16 16 12
101-125 (30.8-38.1) 16 16 16 16 16 16 14 12
126-150 (38.4-45.7) 16 16 16 16 16 14 14 10
Data based on 16 AWG min. wire size, 0.4 Amp per contactor, 1 to 1.5 Volt maximum drop & 104 °F (40 °C) average ambient temperature
Table 50 Minimum recommended control circuit wire size, mm
2
, 50Hz models
Control Wire
Run, m (ft)
Drycooler Types With Pump Controls
DSF DDF DSO DDO
Number of Fans
1 1 123468123 4 68
0-7.6 (0-25) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.5 1.0 1.5 1.5 1.5 1.5 1.5
7.9-15.2 (26-50) 1.0 1.0 1.0 1.0 1.0 1.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
15.5-22.8 (51-75) 1.0 1.5 1.0 1.5 1.5 1.5 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0
23.2-30.4 (76-100) 1.0 2.5 1.0 1.5 2.5 2.5 4.0 6.0 4.0 6.0 6.0 6.0 6.0 6.0
30.8-38.1 (101-125) 1.5 2.5 1.5 2.5 2.5 2.5 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0
38.4-45.7 (126-150) 1.5 4.0 1.5 2.5 4.0 4.0 6.0 6.0 6.0 6.0 6.0 10.0 6.0 6.0
Control Wire
Run, m (ft)
Drycooler Types Without Pump Controls
(D)DNL (D)DNT
Number of Fans
1-46 & 8123468
0-7.6 (0-25) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
7.9-15.2 (26-50) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 2.5
15.5-22.8 (51-75) 1.0 1.0 1.0 1.0 1.0 1.5 1.5 4.0
23.2-30.4 (76-100) 1.0 1.0 1.0 1.0 1.0 1.5 2.5 4.0
30.8-38.1 (101-125) 1.0 1.5 1.0 1.5 1.5 2.5 2.5 6.0
38.4-45.7 (126-150) 1.0 1.5 1.0 1.5 1.5 2.5 4.0 6.0
Table based on 1.0 mm
2
min. wire size, 0.5 Amp per contactor, 1 to 1.5 Volt maximum drop & 40 °C (104 °F) average ambient temperature