Hatteras HN4000 User Manual

Verifying Fan-Module Operation 2-11
920550-5020 Rev 14 HN4000 Hardware Installation Guide
Step 4. IftheHN4000isnotoperating:
a. VerifythattheassignedbreakerinthebreakerpanelisintheONpositionorthe
assignedfuseinthefusepanelisworkingproperly.
b. VerifythatthepowerconnectortotheHN4000isseatedproperly.
c. VerifythattheHN4000isreceiving‐48
VDCpoweroftheproperpolarity.
End of Procedure
2.8 Verifying Fan-Module Operation
AftertheHN4000powersup,verifythatCoolingUnitFailLEDis“off,”indicatingthatthefan
moduleisoperating.Figure 2‐11showstheLED’slocation.
Figure 2-11 Cooling Unit Module and Cooling Unit Failure Indicator
End of Procedure
Caution
When removing power from the device, ensure that both power connections (A and B) are
removed.
Caution
Do not operate an HN4000 for more than two minutes without its fan-module operating.

Hatteras HN4000 Specifications

General

Brand	Hatteras
Model	HN4000
Category	Switch
Language	English