Removal And Replacement Of Condenser; Removal And Replacement Of Hot Gas Valve And Liquid Line Valve - Hoshizaki KMS-750MLH Service Manual

2. Removal and Replacement of Condenser

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.
1) Turn off the power supply.
) Remove the panels.
3) Recover the refrigerant and store it in an approved container.
4) Disconnect the condenser refrigerant tubing.
5) Remove the condenser.
6) Place the new condenser in position and secure with the mounting screws.
7) Remove the drier, then place the new drier in position (located in the icemaker). Install
the new drier with the arrow on the drier in the direction of the refrigerant flow.
8) Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG.
9) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
10) Evacuate the system, and charge it with refrigerant. See the nameplate on the
condensing unit for the required refrigerant charge.
11) Replace the panels in their correct positions.
1) Turn on the power supply.

3. Removal and Replacement of Hot Gas Valve and Liquid Line Valve

1. The condensing unit has 1 hot gas valve and 1 liquid line valve. Both valves
have a strainer prior to the valve body. It is advisable to change the strainer
when replacing the hot gas or liquid line valve.
. Always use a copper tube of the same diameter and length when replacing
the hot gas and liquid lines; otherwise performance may be reduced.
3. 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.
1) Turn off the power supply.
) Remove the panels.
3) Recover the refrigerant and store it in an approved container.
4) Remove the screw and the solenoid.
IMPORTANT
CAUTION
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