Carrier 38QUS014DS2-2 Service Manual page 9

Remote on-off ports
⑹ Built-in drain pump (Optional):
 Built-in drain pump can lift the water to 750mm upmost. It's convenient to install drainage piping under
most space condition.
⑺
Built-in display board

The standard indoor unit can be controlled by wired controller.

There is a display board with a receiver in the E-box. Move out the display, and fix it in other place, even
in the distance of 10m. The unit will realized remoter control.

The wired controller and the display board can display the error code or production code when the chips
detect some failure.
Central control ports
6