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

Piping
27 Liebert
®
CRV
™
5.2.2 Gravity Drain—Units Without Factory-Installed Condensate Pump—600mm (24") Models
• 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
CORRECT
INCORRECT
UNIT
Internal
Drain
External
Drain
Continuous Downward Slope
Internal
Drain
UNIT
UNIT
External
Drain
Internal
Drain
External
Drain
These are external traps also, although
unintentional. Lines must be rigid enough
not to bow over top of other objects.
INCORRECT
Do Not Externally
Trap the Unit
DPN001556
Rev. 0