Condensate Drain Connection / Drain Piping - LG ARND DCR4 Series Installation Manual

The figures below show the layout of the condensate drain connection. The distance from the drain pan outlet to the horizontal run of the
P-trap should be a distance of twice the static pressure in the drain pan
Figure 4: Drain Size and Locations.
Table 4: Drain Size and Locations Table.
No. Drain Type A (in.) B (in.) C (in.) Diameter (in.)
#1 Drain Pump (27-1/2 Lift)
#2 Gravity
Drain Piping
• Drain piping must have down slope (1/50 to 1/100).
• Any holes through the ceilings, walls, etc., must be large enough to accommodate
the drain piping and insulation.
Drain Leak Test
A leak test must be performed 24 hours after the drainage system has been installed.
Drain Pipe Insulation
Install field supplied polyethylene foam insulation 5/16 inch thick or greater on the
flexible drain pipe and position snugly against the indoor unit.
1 inch Plain, I.D.
19.7 13.6 3.8
1 inch, NPT, O.D.
Due to our policy of continuous product innovation, some specifications may change without notification.
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Condensate Drain Connection / Drain Piping

When connecting the condensate piping,
on the drain connections. Internal damage will occur. Refer to the table
above for condensate pipe connection sizes.
Figure 5: Drain Piping Slope.
Pipe clamp
Indoor unit
Maintenance
drain port
INSTALLATION
do not exert lateral force
Upward
routing
not allowed
15