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Installation and Replacement 3-7
Installing The Vanguard 342
Thermal Considerations
Introduction This section explains some of the heat and temperature factors that can affect your
Vanguard 342.
Fan After the unit is installed, power it up and check that the fan is working properly. The
feet must be installed and air should be blowing out of the unit.
Inlet Temperature After the unit is running, check the ambient air temperature. Make sure it does not
exceed the operating temperature limits specified in Appendix A.
Power Supply
Shutdown
If the Vanguard 342 power supply is not properly vented, the external power supply
overheats and shuts down.