Liebert DS user manual Correct, Incorrect, INCORRECT DPN001556, Downflow Ds Unit, Upflow Ds Unit

Piping

Figure 56 Gravity drain for downflow and upflow units

DOWNFLOW DS UNIT

UPFLOW DS UNIT

INTERNAL DRAIN

UNIT

EXTERNAL

DRAIN

EXTERNAL DRAIN

INTERNAL

DRAIN

UNIT

CONTINUOUS DOWNWARD SLOPE

CORRECT

	INTERNAL
UNIT	DRAIN
	EXTERNAL
DO NOT EXTERNALLY	DRAIN
TRAP THE UNIT
INCORRECT
	INTERNAL

CONTINUOUS DOWNWARD SLOPE

CORRECT

EXTERNAL	INTERNAL
	DRAIN
DRAIN
	UNIT

DO NOT EXTERNALLY

TRAP THE UNIT

INCORRECT

DRAIN

UNIT

EXTERNAL

DRAIN

EXTERNAL DRAIN

INTERNAL

DRAIN

UNIT

THESE ARE EXTERNAL TRAPS ALSO, ALTHOUGH UNINTENTIONAL. LINES MUST BE RIGID ENOUGH NOT TO BOW OVER TOP OF OTHER OBJECTS.

INCORRECT

Condensate Pump

THESE ARE EXTERNAL TRAPS ALSO, ALTHOUGH UNINTENTIONAL. LINES MUST BE RIGID ENOUGH NOT TO BOW OVER TOP OF OTHER OBJECTS.

INCORRECT DPN001556

Rev. 0

•1/2" copper sweat connection is provided on units with optional factory-installed condensate pump

•Condensate Pump (60Hz): Condensate pump is rated for approximately 400 gph at 10 feet total head

•Condensate Pump (50Hz): Condensate pump is rated for approximately 315 gph at 10 feet total head

•Size piping based on available condensate head

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