Evaporator Coil - Traulsen UHT48 Service Manual

V. REMOVAL & REPLACEMENT OF PARTS (cont'd)
27" Models
WARNING: THIS PROCEDURE REQUIRES THE USE
OF REFRIGERANTS. BE CERTAIN THE WORK AREA
IS WELL VENTILATED. SAFETY GOGGLES AND
GLOVES SHALL BE WORN SINCE REFRIGERANTS
MAY CAUSE BURNS TO THE SKIN.
Begin by removing the evaporator and condensing unit
covers as outlined in sections "V. a & b".
Next, recover the refrigerant from the system.
NOTE: The use of reclaiming equipment is mandatory.
Remove the evaporator fan assembly and shroud.
Move the thermostat bulb out of the way (on freezer
models only, it will also be necessary to remove the
high limit thermostat and clips that support the de-
frost heater and locate the thermostat bulb).
Remove the screws from the mounting brackets that
secure the coil (see figure 30).
Disconnect the refrigeration lines to the evaporator coil
at the back of the unit. Pull the coil from the cabinet.
NOTE: You may have to remove the defrost heater with
the evaporator coil.
Reverse the procedure to install.
Evacuate system. To finish, charge the system and
put unit back into operation.
NOTE: It is recommended that the filter/drier be
changed when this part is replaced.
WARNING: UNPLUG UNIT BEFORE SERVICING
V. o- EVAPORATOR COIL:
-15-
48" & 60" Models
WARNING: THIS PROCEDURE REQUIRES THE USE
OF REFRIGERANTS. BE CERTAIN THE WORK AREA
IS WELL VENTILATED. SAFETY GOGGLES AND
GLOVES SHALL BE WORN SINCE REFRIGERANTS
MAY CAUSE BURNS TO THE SKIN.
Begin by removing the evaporator and condensing unit
covers as outlined in sections "V. a & b". Also re-
move the evaporator fan shroud as outlined in sec-
tion "V. k".
Next, recover the refrigerant from the system.
NOTE: The use of reclaiming equipment is mandatory.
Remove the thermostat as outlined in section "V. c"
(on freezer models only, it will also be necessary to
remove the high limit thermostat and screws that sup-
port the defrost heater ).
Disconnect the wiring harness from condensing unit
to the evaporator.
Disconnect the refrigeration lines and wiring harness
to the evaporator coil at the back of the unit.
Remove the screws from the mounting brackets that
secure the coil (see figure 31). Pull the coil from the
cabinet.
NOTE: You may have to remove the defrost heater with
the evaporator coil.
Reverse the procedure to install. Evacuate system.
NOTE: it is recommended that the filter/drier be
changed when this part is replaced.
To finish, charge the system and put unit back into
operation.