Rockwell Automation T8271 Trusted 24V dc Fan Tray Roof Mounted - Manual (Page 7)

Trusted
TM
24V dc Fan Tray Roof Mounted T8271
Issue 9 Apr 10 PD-T8271 7
1. Description
The Trusted TM Fan Tray 24V dc Roof Mounted comprises eight fans mounted horizontally in a chassis
supported within a roof cowl.
Figure 2 below shows the configuration of the fans within the Fan Tray.
Figure 2 Fan Tray Wiring Diagram
The Fan Tray is powered from dual 24V dc supplies arranged such that the fans are supplied in fours
via 500mA anti-surge fuses. The 0V supply is connected via terminal block TB1.
Each fan is capable of moving 69m 3 /h when operating with a nominal rotor speed of 3100 rpm.
Protection against overloading and reverse polarity is provided electonically for each fan.