Installation Manual

19
PIPING INSTALLATION
Vertical Lift Drainage System (Internal Condensate Pump)
If a gradual pitch from the drainage port is not obtainable, the indoor unit has a lift condensate
drain pump * with limited head or lift. The condensate drain pipe may have a vertical height of
33 in. 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 33 in. above the
unit drainage port. A float valve is recommended to shut off the system if the auxiliary pump fails.
The unit has two gravity drain ports and a factory installed condensate pump with an outlet port.
The condensate pump port must be utilized for condensate removal or the pump may be
disconnected from the control board if a gravity drain port is desired. If disconnected the
condensate pump plug must be electrically insulated to prevent an accidental short circuit. Use
piping of the same diameter or larger as the unit connection. Local code should be referenced for
approved condensate piping for your area.
• Include the condensate hose in the pipe/
wire bundle for the exterior/outdoor
section.
• Fasten the refrigerant and condensate pipe
assembly to the exterior wall for support.
• The drain pipe should terminate 6 inches
above grade.