PIPING INSTALLATION
If a gradual pitch from the drainage port is not obtainable, the Ceiling Cassette contains an internal
condensate drain pump with limited head or lift. The condensate drain pipe may have a vertical height of
11-in. (280mm) maximum above the unit drainage port within the first 12-in as long as the remaining
condensate drain pipe gradually descends from that point and is aligned with drainage port.
Use an auxiliary condensate pump with float valve for vertical height greater than of 11-in.
(280 mm) above the unit drainage port. A float valve is recommended to shut off the system if
the auxiliary pump fails.
Vertical Lift Drainage System
Sealed
Drain
pipe
Clamps
Trap
Completing Condensate Drainage Piping
• Include the exterior section of condensate hose in the
pipe/wire bundle.
• Fasten the refrigerant and condensate pipe assembly to
the exterior wall for support.
• The drain pipe should terminate 6 inches above grade.
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