Carrier 38QUS018DS2 Series Installation Manual page 23

2. INDOOR UNIT INSTALLATION
2.4.4.3 Remove 4 screws, and then remove the frame from bottom side. Piping connection port and drain hose connection port can
be observed after take off the frame.
2.4.4.4 Remove the installation bearer, and take off control box cover. Wiring terminator can be observed.
2.4.5 Install the drain pipe
The drain line must not have a trap anywhere in its length, must pitch downwards, and must be insulated up to the outside wall.
Drain hose connection port
Installation bearer
Bend
Piping connection port
Control box cover
S shape
GB-22 7