Hoshizaki KM-901MAH 用户手册

76

. Always install a new drier every time the sealed refrigeration system is 

opened. 

. 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 50°F (°C).

) Turn off the power supply.
) Remove the icemaker panels.
3) Recover the refrigerant and store it in an approved container.
4) Remove the condenser unit panels.
5) Disconnect the condenser inlet and outlet piping.
6) Remove the screws securing the condenser to the base of the unit, then remove the 

condenser.

7) Remove the shroud from the condenser and attach to the new condenser.
8) Install the new condenser.
9) Remove the drier (located in the icemaker), then place the new drier in position.

0) Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG.
) Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of 

refrigerant to the system (if using an electronic leak detector), and then raise the 
pressure using nitrogen gas (40 PSIG). DO NOT use R-404A as a mixture with 
pressurized air for leak testing.

) Evacuate the system, and charge it with refrigerant. See the rating label inside the 

icemaker for the required refrigerant charge. 

3) Replace the panels in their correct positions.
4) Turn on the power supply.