Removal And Replacement Of Headmaster (Condensing Pressure Regulator - C - Hoshizaki KMS-1230MLH Service Manual

5) Disconnect the valve body. Remove the strainer and check valve.
6) Place the new valve and strainer in position.
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.
Always protect the valve body by using a damp cloth to prevent the valve from
overheating. Do not braze with the valve body exceeding 50°F (11°C).
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) Cut the leads of the solenoid allowing enough lead length to reconnect using closed
end connectors.
1) Connect the new solenoid leads.
13) Attach the solenoid to the valve body and secure it with a screw.
14) Replace the panels in their correct positions.
15) Turn on the power supply.
4. Removal and Replacement of Headmaster (Condensing Pressure Regulator -
C.P. Regulator)
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) Before heating, break off the stub on the dome to release the dome charge.
5) Disconnect the headmaster.
6) Place the new headmaster in position.
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.
CAUTION
IMPORTANT
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