Removal And Replacement Of Cabinet Evaporator - Hoshizaki REFRIGERATED PREP TABLE WITH RAISED RAIL 73168 Service Manual

15) Replace the panels in their correct positions.
16) Plug in the unit, then move the power switch to the "ON" position to start the unit's
cooling process.
D. Removal and Replacement of Cabinet Evaporator
1. Always install a new drier every time the sealed refrigeration system is
opened.
2. Do not replace the drier until after all other repair or replacement has been
made. Install the new drier with the arrow on the drier in the direction of the
refrigerant flow.
3. When brazing, protect the drier by using a wet cloth to prevent the drier from
overheating. Do not allow the drier to exceed 250°F (121°C).
1) Remove the refrigeration system cartridge. Perform steps 1 through 14 in "IV.B.1.
Recovery Procedure." Once the refrigeration cartridge is out, proceed to step 2.
Be careful when handling the cabinet evaporator assembly. This assembly
includes a defrost heater sheathed in a glass tube. This sheathing can be
easily damaged and may also cause cuts if broken. The defrost heater will also
be hot after a defrost. Use gloves when handling and avoid touching the glass
directly. Also prevent the defrost heater from touching other parts.
2) Remove the defrost heater, defrost thermostat, defrost and cabinet thermistors from the
evaporator. See Fig. 3.
3) Remove the evaporator shroud and evaporator bracket from the evaporator.
4) Remove the insulation tubing, and disconnect the evaporator inlet and outlet tubing.
5) Remove the screws holding the evaporator to the refrigeration system cartridge.
6) Remove the evaporator and drier.
7) Place the new evaporator and new drier in position. Provide a safe means for
supporting the evaporator.
Defrost Thermostat
Evaporator
Fig. 3
Defrost Thermistor
Evaporator Bracket
CAUTION
WARNING
Cabinet Thermistor
48
Evaporator Shroud
Cabinet Fan Motors
Defrost Heater
Cabinet Thermistor Bracket