Carrier ZC - Manual (Page 18)

18
Position the drain pan inside the cabinet.
9.2 DRAINING SYSTEM THROUGH THE BOTTOM
OUTLET (USING THE DRAIN PAN)
Install a 5/8" (15,9 mm) plastic hose at the outlet of
the drain pan.
The hose must be long enough to reach the
rain water drain.
Install one of the hose ends at the drain outlet.
The other end of the hose must be connected to the
water mains.
The installation of this draining system is
not recommended when the unit is
installed on sites with difficult access
(example: far from windows and inside
buildings), because it is difficult to connect
the hose to the water mains.