Hoshizaki Refrigeration Equipment KM-900MRH3

Ensure all components, fasteners, and thumbscrews are securely in place after maintenance or cleaning

Wear liquid-proof gloves for safe handling of cleaning and sanitizing solution

Dilute 16 fl. oz. of recommended cleaner with 3 gallons of water

Remove all ice from the Evaporator and the Storage Bin

Remove the Front Panel and Insulation Panel

Recover the refrigerant and store it in an approved container

Remove the insulation and the Expansion Valve Bulb on the suction line

Remove the Expansion Valve Cover

Disconnect the Expansion Valve using brazing equipment

Move the Control Switch to the 'OFF' position

Move the Control Switch to the 'ICE' position

Allow 5 minutes for the icemaker to fill with water and the Water Pump to start operating

Close the Water-cooled Condenser Water Supply Line Shut-off Valve

Open the Drain Valve for the water-cooled condenser water supply line

Allow the line to drain by gravity

Attach compressed air or carbon dioxide supply to the Condenser Water Line Drain Valve

Remove the Front Panel (Except water-cooled model)

Move the Control Switch, on the Control Box, to the “OFF” position

Close the Potable Water Supply Line Shut-off Valve and open the Potable Water Supply Line Drain Valve

Allow the line to drain by gravity

Attach compressed air or carbon dioxide supply to the Potable Water Line Drain Valve

Move the Control Switch to the “ICE” position

Blow the potable water line out using compressed air or carbon dioxide

Recover the refrigerant and store it in an approved container

Install the new Drier with the arrow in the direction of the refrigerant flow

Check for leaks using nitrogen gas (140 PSIG) and soap bubbles

Evacuate the system and charge it with refrigerant

Replace the panels in their correct positions