9
Versa Drawer Refrigeration Units
EVAPORATOR COIL ASSEMBLY
1. Disconnect power from the refrigeration unit.
2. Remove the drawer as described above.
3. Remove the rear panel as described in COVERS
AND PANELS.
4. Remove the evaporator coil assembly cover as
described previously.
5. Follow the EPA guidelines for RECOVERY,
PURGING/TESTING AND RECHARGING
REFRIGERATION UNIT to recover the refrigerant
from the refrigeration system.
Screw
Evaporator coil assembly
Figure 7. Evaporator Coil Assembly Removal
6. From the rear of the refrigeration unit, unsolder the
refrigeration lines from the evaporator coil assembly.
7. Carefully remove the expansion valve thermocouple
from evaporator line.
8. Remove the evaporator coil assembly from the unit
(Figure 7).
9. Reverse the above steps to install a replacement
or repaired evaporator coil assembly. Recharge the
system as described in the EPA guidelines for
RECOVERY, PURGING/TESTING AND
RECHARGING REFRIGERATION UNIT.
EXPANSION VALVE
1. Disconnect power from the refrigeration unit.
2. Remove the evaporator coil assembly cover as
described in COVERS AND PANELS.
3. Remove the expansion valve thermocouple from the
evaporator line.
Screw
Evaporator coil
assembly
Expansion
valve (TXV)
Thermocouple
Figure 8. Expansion Valve and Thermocouple
4. Reach inside the drawer box and unsolder the
refrigeration lines. Remove the expansion valve and
thermocouple from the evaporator housing (Figure 8).
5. Reverse the above steps to install a replacement
expansion valve.
CONDENSER FAN BLADE
1. Disconnect power from the refrigeration unit.
2. Remove the louvered access end panel as
described in COVERS AND PANELS.
Condenser
fan blade
Nut
Figure 9. Condenser Fan Blade
3. While holding the condenser fan blade (Figure 9),
remove the lock nut from the center of the
condenser fan blade.
4. Reverse the above steps to install the condenser
fan blade.
