Gravity Drain-Units Without Factory-Installed Condensate Pump-600Mm (24"); Models; Figure 19 Gravity Drain Piping-600Mm (24") And 300Mm (12") Units - Emerson Liebert CRV User Manual

5.2.2 Gravity Drain—Units Without Factory-Installed Condensate Pump
• 3/4" FPT drain connection is provided on units without optional factory-installed condensate
pump with infrared humidifier or no humidifier; 1-1/4" FPT connection is provided on units with
steam generating humidifier
• Pitch the drain line toward the drain a minimum of 1/8" (3mm) per 1 foot (305mm) of length
• Drain is trapped internally. Do not trap the drain external to equipment
• Drain line must be sized for 2 gpm (7.6 l/m) flow
Figure 19 Gravity drain piping—600mm (24") and 300mm (12") units
UNIT
Do Not Externally
Trap the Unit
INCORRECT
UNIT
Continuous Downward Slope
CORRECT
Internal
Drain
External
Drain
These are external traps also, although
unintentional. Lines must be rigid enough
not to bow over top of other objects.
27
600mm (24") Models
—
Internal
Drain
External
Drain
UNIT
INCORRECT
Piping
Internal
Drain
External
Drain
DPN001556
Rev. 0
® ™
Liebert CRV