COMPONENT INFORMATION
2-24
Figure 2-66. Evaporator Assy.
Model 501F
Defrost Heater
Assy.
Defrost Drain
Tube heater
Defrost Terminator
(Location varies)
EVAPORATOR ASSEMBLY
MODEL 501F
The larger finned tubes allow for efficient opera-
tion by drawing in the cabinet air and circulating it
through this full width evaporator.
The design incorporates an eight pass defrost
heater assy. along with a defrost drain tube heater
(Figure 2-66). The defrost drain water is caught
by the V-shaped drain trough. Because of the the
colder temperatures, a drain trough heater keeps
the area warm during the defrost cycle only.
WARNING
Always disconnect electrical power to equip-
ment before attempting repairs.
WARNING
Evaporator coils are sharp and easy to bend;
they are also very cold.
REFRIGERATOR EVAPORATOR
ASSEMBLY - ALL MODELS
The larger fin tube design of the evaporator allows
for a warmer coil operating temperature. Warmer
operating temperatures provide advantages in
inside humidity, compressor capacity and control
“coil sensing” capabilities (Figure 2-67).
This evaporator coil incorporates an off-cycle
defrost. Once the system is pulled down and the
control is satisfied, the unit is shut down. The unit
will remain off until the 39
° F cut-in temperature is
reached at the control.
WARNING
Always disconnect electrical power at the mas-
ter switch before attempting repairs.
WARNING
Evaporator coils are sharp and easy to bend;
they are also very cold.
Figure 2-67. Refrigerator Evaporator Assy
Refrigerator Evaporator