Hoshizaki IM-240DME Service Manual page 82

5. EVAPORATOR 5. EVAPORATOR
Always install a new Drier every time the sealed refrigeration system is opened. 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 Do not replace the Drier until after all other repair or replacement has been
made. made.
1) Unplug the icemaker or disconnect the power source. 1) Unplug the icemaker or disconnect the power source.
2) Remove the Top, Front, Right and Left Side Panels. 2) Remove the Top, Front, Right and Left Side Panels.
3) Recover the refrigerant and store it in a proper container, if required by an applicable law 3) Recover the refrigerant and store it in a proper container, if required by an applicable law
(See "1. [b] REFRIGERANT RECOVERY"). (See "1. [b] REFRIGERANT RECOVERY").
4) Remove the Water Pan Assembly, referring to "8. WATER PAN ASSEMBLY." 4) Remove the Water Pan Assembly, referring to "8. WATER PAN ASSEMBLY."
5) Disconnect the solder connections on the Evaporator using brazing equipment. Protect 5) Disconnect the solder connections on the Evaporator using brazing equipment. Protect
the Expansion Valve from excessive heat. the Expansion Valve from excessive heat.
6) Remove four nuts holding the Evaporator. 6) Remove four nuts holding the Evaporator.
7) Install the new Evaporator, and secure it with the Bolts, Collars (Spacer) and Nuts. 7) Install the new Evaporator, and secure it with the Bolts, Collars (Spacer) and Nuts.
8) Install the new Drier (See "3. DRIER"). 8) Install the new Drier (See "3. DRIER").
9) Braze pipes, with nitrogen gas flowing at the pressure of 0.2 - 0.3 bar. 9) Braze pipes, with nitrogen gas flowing at the pressure of 0.2 - 0.3 bar.
10) Check for leaks using nitrogen gas (10 bar) and soap bubbles. 10) Check for leaks using nitrogen gas (10 bar) and soap bubbles.
11) Evacuate the system and charge it with refrigerant (See "1. [c] EVACUATION AND 11) Evacuate the system and charge it with refrigerant (See "1. [c] EVACUATION AND
RECHARGE"). RECHARGE").
12) Replace the removed panels in their correct positions. 12) Replace the removed panels in their correct positions.
13) Plug in the icemaker or connect the power source. 13) Plug in the icemaker or connect the power source.
IMPORTANT IMPORTANT
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