Condensate Drain Piping - LG LC247HV Engineering Manual

reFrigerant PiPing DeSign

condensate drain Piping

Figure 54: Condensate Drain PIping Trap.
Models with drain pump
Max.
31-1/2 inches
Polyethylene insulation 10t
PVC drain pipe
Condensate Drain Piping Insulation
The inside temperature of the drain piping can rise to about 50°F. When high temperature and humidity air touch the outside surface of the
drain pipe, condensation may form. To prevent condensation from forming, install polyethylene insulation 1/4 to 7/16 inches thick. Drain
piping must be properly insulated to prevent damage to the indoor unit and the ceiling.
Figure 53: Condensate Drain Piping Should Be
Properly Clamped at the Connections.
Clamp connection
Figure 56: Condensate Drain Piping Should Not Include Sharp Bends.
Drain Piping Leak Test
Test the condensate drain piping system for leaks 24 hours after installation is complete. Use only water to test the drain piping.
64 | duct (HIGH StatIc)
11-13/16 inches or less
PVC elbow
PVC
Flexible hose
Common drain pipe
Drain pump
Figure 55: Properly Insulated Condensate Drain Piping.
Insulation Insulation
Insulation
required not required
not required
Sharp crook Sharp bend
Due to our policy of continuous product innovation, some specifications may change without notification.
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Models without drain pump
Metal clamp
Drain pan
Thermal insulation(bend area)
Insulation that does not
Insulation that does not
Insulation
fit--too loose
required
Figure 57: Do Not Reverse the
Slope for the Drain Connection.
Water f low
Reverse slope
Insulation
Insulation
required
not required
Flexible drain hose
Thermal insulation (drain pipe area)
Insulation that fits
fit--too loose
Figure 58: Improperly Installed
Insulation—Too Loose.
Insulation that does not
fit--too loose
Insulation that fits
Ins