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4. Removal and Replacement of Drier
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 drier.
5) Install the new drier, with the arrow on the drier, in the direction of the refrigerant
flow. Use nitrogen gas at the pressure of 3-4 PSIG when brazing the tubings.
6) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.
7) Evacuate the system, and charge it with refrigerant. For air-cooled and water-
cooled models, see the nameplate for the required refrigerant charge. For remote
air-cooled models, see the charge label in the machine compartment.
8) Replace the panels in their correct positions.
9) Turn on the power supply.
5. Removal and Replacement of Expansion Valve
IMPORTANT
Sometimes moisture in the refrigerant circuit exceeds the drier capacity and
freezes up at the expansion 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) Turn off the power supply.
2) Remove the panels.
Содержание KMD-700MAH
Страница 11: ...11 7 Condensing Unit URC 12F...
Страница 34: ...34 b KMD 700MWH and KMD 900MWH Note KMD 900M_H models have two expansion valves...
Страница 35: ...35 c KMD 700MRH and KMD 900MRH Note KMD 900M_H models have two expansion valves...
Страница 38: ...38 b1 KMD 700MRH auxiliary code R 0 and earlier Note Pressure Switch Cut out 412 PSIG Cut in 327 21 PSIG 21 0...
Страница 39: ...39 b2 KMD 700MRH auxiliary code R 1 and later Note Pressure Switch Cut out 412 PSIG Cut in 327 21 PSIG 21 0...
Страница 42: ...42 Note Pressure Switch Cut out 412 PSIG Cut in 327 21 PSIG 21 0 d1 KMD 900MRH auxiliary code R 0 and earlier...
Страница 43: ...43 d2 KMD 900MRH auxiliary code R 1 and later Note Pressure Switch Cut out 412 PSIG Cut in 327 21 PSIG 21 0...
Страница 75: ...75 Fig 5 Top View Drain Plug Water Shield Overflow Cap Overflow Pipe Cube Guide A Cube Guide B...
