U-Line SP 18 Service Manual page 18

Air flow in at
evaporator blade
Air flow out at
evaporator outlet
Figure 3. Frost Free Air Flow
Section 3 - Service and Repair
Air passes though
fin tube evaporator
Condensate drains down past the
evaporator, into drain pan, and into
condensate pan through drain hose. The
drain trough is warmed during defrost by
contact with evaporator fins. On U-CO29F
model, drain trough is also warmed by drain
heater attached to the drain pan.
U-LINE1015
3-3