Hubbell STH manual Excessive vibration, High rate of flow beyond, Water hammer

Excessive vibration.	High rate of flow beyond	Consult factory.
	design conditions.
	Under sized piping to the	Re-pipe lines to unit using proper
	unit.	sized lines.
Water hammer.	Defective steam trap.	Repair or replace per separate O&M.
	Undersized condensate lines.	Re-pipe condensate line using proper
		sized lines.
	Insufficient slope on	Increase slope on condensate lines.
	condensate lines causing
	backup.

*Red symptom indicates that equipment should be shut down immediately and cause of malfunction corrected before unit is re-started or serious damage may result.

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