Vertiv Liebert Drycooler - Page 51

Control Wire Run, ft
(m)
Drycooler Types without Pump Controls
(D)DNL (D)DNT
No. of Fans
1-4 6 & 8 1 2 3 4 6 8
0-25 (0-7.6) 16 16 16 16 16 16 16 16
25-50 (7.9-15.2) 16 16 16 16 16 16 16 14
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 14 16 16 16 16 14 12
126-150 (38.4-45.7) 16 16 16 16 16 14 14 12
Data is based on 16AWG minimum wire size, 0.4 amp per contactor, 1 to 1.5 volt maximum drop and 104°F (40°C) average ambient temperature.
Table 6.9 Minimum Recommended Control Circuit Wire Size, AWG, 60 Hz Models/Drycooler Types without Pump
Controls
Control Wire Run, ft
(m)
Drycooler Types with Pump Controls
DSF DDF DSO DDO
No. of Fans No. of Fans
1 1 1 2 3 4 6 8 1 2 3 4 6 8
0-25 (0-7.6) 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
25-50 (7.9-15.2) 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
51-75 (15.5-22.8) 1.0 1.5 1.0 1.5 2.5 2.5 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0
76-100 (23.2-30.4) 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
101-125 (30.8-38.1) 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
126-150 (38.4-45.7) 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
Data is based on 16AWG minimum wire size, 0.4 amp per contactor, 1 to 1.5 volt maximum drop and 104°F (40°C) average ambient temperature.
Table 6.10 Minimium Recommended Control Circuit Wire Size, mm2, 50 Hz Models/Drycooler Types with Pump
Controls
6 Electrical Connections
47