Hoshizaki KM-1301SWH/3 Benutzerhandbuch

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1. 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 (11°C).

1) Turn off the power supply.
) Remove the panels.
3) Recover the refrigerant and store it in an approved container.
4) Disconnect the condenser inlet and outlet piping.
5) Remove the side frame, then remove the condenser assembly.
6) Remove the shroud from the old condenser and attach it to the new condenser.
7) Install the new condenser assembly, then attach the side frame in its correct position.
8) Remove the drier, then place the new drier in position.
9) Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG.

10) 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 (140 PSIG). DO NOT use R-404A as a mixture with 
pressurized air for leak testing.

11) Evacuate the system, and charge it with refrigerant. See the nameplate for the required 

refrigerant charge. 

1) Replace the panels in their correct positions.
13) Turn on the power supply.