Refrigeration Service Operations
11-14
Installation
1. Install the throttling valve using new O-ring soaked in compressor oil (same type of oil that is used in the system). Bolt the
throttling valve to the compressor.
2. Connect the suction hose from the throttling valve to the accumulator tank. Install pilot solenoid line.
3. Replace Drier
4. Pressurise the system and check for leaks. If no leaks are found, evacuate the system.
5. Open receiver tank outlet valve. Place the unit in operation.
6. Check refrigerant charge
Three-Way Valve Condenser Pressure Bypass Check Valve Repair
Removal
1. Recover the refrigerant charge.
2. Unscrew the condenser pressure bypass check valve cap from the check valve.
3. Remove the circlip.
4. Unscrew the check valve stem by using a screwdriver in the slot provided.
NOTE: Spring and valve are held in by the stem. While removing the stem, use care so the spring and valve are not lost.
5. Remove the spring and Teflon valve.
6. Inspect the check valve seat in the three-way valve.
7. If replacement parts are needed, a 60-163 kit must be used which includes the Teflon valve, spring, O-ring, valve stem and
circlip.
Installation
1. Coat the O-ring with compressor oil and install it on the check valve stem.
2. Insert the spring into the hole in the check valve stem and then install the Teflon check valve on the other end of the spring
with the hole in the valve towards the spring.
3. Coat the entire assembly with compressor oil and install the assembly into the check valve seat in the three-way valve.
CAUTION: The Teflon valve must be inserted with the flat side against the valve seat to ensure correct sealing.
4. Screw the check valve stem into the three-way valve until the circlip can be installed.
5. Install the circlip.
6. Unscrew (back seat) the check valve stem against the circlip.
NOTE: Valve stem must be back seated during normal unit operation.
7. Coat sealing area in cap with compressor oil, install and tighten the cap on the three-way valve.
8. Pressurise the refrigeration system and test for leaks. If no leaks are found, evacuate the system.
9. Recharge the unit.
Three-Way Valve Condenser Bypass Check Valve
1.
Teflon Check Valve Inspect Cap
2.
Spring
3.
O-ring
4.
Stem
5.
Circlip
6.
Cap
Summary of Contents for SLXi Spectrum
Page 17: ...Safety Precautions 2 5 Warning Decals...
Page 18: ...Safety Precautions 2 6 Warning Decals Information Decals...
Page 74: ...Unit Description 5 30...
Page 128: ...Controller Operation 7 28...
Page 156: ...Electrical Maintenance 8 28...
Page 234: ...Refrigeration Maintenance 10 22...
Page 309: ...13 Mechanical Diagnosis TK 482 TK 486 and TK 486V Engines 13 2...
Page 316: ...Mechanical Diagnosis 13 8...
Page 322: ...Refrigeration System Diagnosis 14 6...
Page 332: ...Single Temperature Refrigeration System Diagrams 15 10...
Page 339: ...Multi Temperature Refrigeration System Diagrams 16 7...
Page 340: ...Multi Temperature Refrigeration System Diagrams 16 8...