Hoshizaki SRK-14H, Руководство по обслуживанию

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11) Remove the plugs from the suction, discharge, and process pipes.
1) Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG.
13) 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.
14) Evacuate the system and charge it with refrigerant. See the nameplate on the
condensing unit for the required refrigerant charge.
15) Connect the terminals and replace the terminal cover in its correct position.
16) Replace the panels in their correct positions.
17) Turn on the power supply.
2. Removal and Replacement of Condenser
IMPORTANT
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) 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.
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.