Cooling System - WEG CFW-11W G2 RB Series User Manual

3.2.6 Cooling System

Figure 3.22 on page 3-17 shows the details of the coolant inlet and outlet.
Table 3.9 on page 3-17 contains detailed specifications of the UP11W G2 cooling system.
Coolant Inlet Temperature
Fluid Temperature Increase
Coolant Flow
Maximum Flow Allowed
Maximum System Pressure in Relation
to the Atmosphere
Load Loss on the Inverter Heatsink
Coolant Inlet and Outlet Fittings Used on
the Inverter
(1) Considering the 20 l/min flow and the composition of 90 % of water and 10 % of glycol in the coolant.
(DIN 3861 / ISO 8434-1)
Figure 3.22: Detail of the coolant inlet and outlet
Table 3.9: Cooling system specifications
From 0 ºC to 45 ºC (32 ºF to 113 ºF) according to the coolant used; see
on page 3-19. From 45 ºC to 55 ºC (113 ºF to 131 ºF) with output current derating
(1) 6 °C (46 ºF)
20 l/min
30 l/min
6 bar (600 kPa)
0.84 bar (84 kPa)
(1)
Stainless steel bulkhead fitting for 16 mm tube, M24X1.5 thread and 24° taper
(DIN 3861/ISO 8434-1). According to
M24X1.5 thread
Tube gauge 16 mm
internal taper of 24°
Figure 3.23: Details of the hydraulic connection on the product
Installation and Connection
Coolant inlet
Coolant outlet
Figure 3.23 on page 3-17
Table 3.12
CFW-11MW G2 RB | 3-17
3