User manual

Piping
85 Liebert
®
DS
™
Figure 67 Gravity drain for downflow and upflow units
Condensate Pump
• 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
CORRECT
INCORRECT
CORRECT
DOWNFLOW DS UNIT UPFLOW DS UNIT
UNIT
INTERNAL
DRAIN
EXTERNAL
DRAIN
CONTINUOUS DOWNWARD SLOPE
INTERNAL
DRAIN
UNIT
UNIT
EXTERNAL
DRAIN
INCORRECT
INTERNAL
DRAIN
EXTERNAL
DRAIN
THESE ARE EXTERNAL TRAPS ALSO, ALTHOUGH
UNINTENTIONAL. LINES MUST BE RIGID ENOUGH
NOT TO BOW OVER TOP OF OTHER OBJECTS.
INCORRECTINCORRECT
THESE ARE EXTERNAL TRAPS ALSO, ALTHOUGH
UNINTENTIONAL. LINES MUST BE RIGID ENOUGH
NOT TO BOW OVER TOP OF OTHER OBJECTS.
INTERNAL
DRAIN
EXTERNAL
DRAIN
INTERNAL
DRAIN
EXTERNAL
DRAIN
INTERNAL
DRAIN
EXTERNAL
DRAIN
CONTINUOUS DOWNWARD SLOPE
UNIT
UNIT
UNIT
DO NOT EXTERNALLY
TRAP THE UNIT
DO NOT EXTERNALLY
TRAP THE UNIT
DPN001556
Rev. 0