112
TK 61753-2-MM-EN
2. Solder the bypass check valve line to the bypass check valve. Use a heat sink on the bypass check valve.
3. Replace Drier
4. Back seat the By-pass Hand Valve and place unit in service.
Receiver Tank
Removal
1. Recover the refrigerant charge.
2. Unsolder the liquid Inlet line from the receiver tank. Use a heat sink on the bypass check valve.
3. Disconnect the filter Drier from the receiver tank. Use a heat sink on the bypass check valve.
4. Unbolt the mounting brackets and remove the receiver tank from the unit.
Installation
1. Place the receiver tank in the unit and install the mounting bolts and nuts loosely. Position the receiver tank so the
sight glass is clearly visible (through viewing hole in mounting bracket) and the outlet tube lines up.
2. Solder the inlet tube to the receiver tank. Use a heat sink on the bypass check valve.
3. Tighten the receiver tank mounting hardware securely.
4. Pressurize the refrigeration system and check for leaks. If no leaks are found, evacuate the system.
5. Replace Drier.
6. Pressurise the refrigeration system and check for leaks. If no leaks are found, evacuate the system.
7. Charge the unit with correct refrigerant.
Filter-Drier (Dehydrator)
Removal
1. Pump down the low side and equalize the pressure to 0 psig, (0 bar g).
2. Disconnect the nuts at the ends of the drier. Hold the drier with a back-up wrench on the hex behind the flare fitting.
3. Loosen the mounting hardware and remove the drier.
Installation
1. Apply a thin layer of compressor oil to new O-rings and install in the inlet and outlet nuts.
2. Install the new drier and tighten the mounting bracket screws and nuts.
3. Install and tighten the inlet nut to the receiver tank outlet valve line (inlet end of drier is labelled “IN”). Hold the drier
with a back-up wrench on the hex behind the Flare/ORS (depending on manufacture date of the unit) fitting.
4. Pressurize the low side and inspect for leaks. If no leaks are found, evacuate the low side. (See the correct operation
and diagnostic manual for more information. Place the unit in operation.
5. Back seat the receiver outlet valve, check the refrigerant charge and compressor oil level.
Expansion Valve Assembly
Removal
1. Pump down the low side and equalize the pressure to slightly positive.
2. Remove the evaporator access panels as needed.
3. Remove the feeler bulb from the clamp. Note the position of the feeler bulb on the suction line.
4. Unsolder the equalizer line, inlet liquid line, and distributor from the expansion valve.
5. Remove the expansion valve mounting bolt and remove the expansion valve from the unit.
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