6.REMOVAL AND REPLACEMENT OF HOT GAS VALVE AND LINE VALVE
CAUTION
Always use a copper tube of the same diameter and length when replacing the hot gas lines; otherwise the performance may be reduced.
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.
1)Turn off the power supply.
2)Remove the panels.
3)Recover the refrigerant and store it in an approved container.
4)Remove the screw and the Solenoid.
5)Disconnect the Hot Gas Valve or Line Valve using brazing equipment.
6)Install the new valve.
WARNING
1.Always protect the valve body by using a damp cloth to prevent the valve from overheating. Do not braze with the valve body exceeding 250°F.
2.Do not put a direct flame on the compressor insulation. A wet cloth or barrier may be needed.
7)Install the new Drier.
8)Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
9)Evacuate the system, and charge it with refrigerant. See the Charge Label in the machine compartment for the required refrigerant charge.
10)Cut the leads of the Solenoid allowing enough lead length to reconnect using closed end connectors.
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