Hot Gas Valve - Hoshizaki AM-100BAE Service Manual

5. HOT GAS VALVE

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.
1) Unplug the icemaker or disconnect the power source.
2) Remove the Rear Mesh and Front Panel.
3) Recover the refrigerant and store it in a proper container, if required by an applicable law
(See "1. [b] REFRIGERANT RECOVERY").
4) Disconnect the Hot Gas Valve leads.
5) Remove the screw and the Solenoid Coil.
6) Remove the valve and Drier using brazing equipment.
7) Braze the new Hot Gas Valve with nitrogen gas flowing at a pressure of 3 - 4 PSIG.
Always protect the valve body by using a damp cloth to prevent the valve from
overheating. Do not braze with the valve body exceeding 248°F.
8) Install the new Drier (See "3. DRIER").
9) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
10) Evacuate the system and charge it with refrigerant (See "1. [c] EVACUATION AND
RECHARGE").
11) Attach the Solenoid Coil to the valve body, and secure it with the screw.
12) Connect the leads.
13) Refit the panels in their correct positions.
14) Plug in the icemaker or connect the power source.
IMPORTANT
WARNING
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