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12
Indoor Condensate Drain Piping
PIPING INSTALLATION
Observe all local sanitary codes when installing condensate drains.
WARNING
CAUTION
WARNING
WARNING
It is recommended to install the condensate drain system with hard polyvinyl chloride (PVC) pipe
and matching connectors. Use piping of the same diameter or larger as the unit connection.
The Ceiling Cassette drainage port diameter is 1.2 in. (31mm) OD.
Pitch the condensate drain pipe at a gradual 2.5% pitch (Example: ΒΌ-in drop over a 10-in length)
without obstructions. Use pipe hanger/brackets to support the condensate drain pipe from dropping.
NOTE: Insulate condensate hose and/or pipes to prevent sweating which may cause
water stains or wall damage.
The following are recommended gravity drainage systems for the ceiling cassette.
Gravity Drainage Systems
Typical Gravity System
Common Drain Pipe System
with P-Trap and Vent
Outdoor Unit Pipe Connections
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