TK 56433-5-MM-EN
77
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 three-way valve.
3.
Remove the snap ring.
Figure 95.
Check Valve Assembly
1.
Piston
4.
Stem
2.
Snap Ring
5.
O-ring
3.
Cap
6.
Spring
4.
Unscrew the check valve stem by using a
screwdriver in the slot provided.
N
No
otte
e:: The spring and piston are held in by the stem.
While removing the stem, use care so the
spring and piston are not lost.
5.
Remove the spring and piston.
6.
Inspect the check valve seat in the three-way valve.
7.
If replacement parts are needed, a kit P/N 60-163
must be used which includes the piston, spring, O-
ring, valve stem, and snap ring.
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 piston on the other end of
the spring with the hole in the piston towards the
spring.
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3.
Coat the entire assembly with compressor oil and
install the assembly into the check valve seat in the
three-way valve.
4.
Screw the check valve stem into the three-way
valve until the snap ring can be installed.
5.
Install the snap ring.
6.
Unscrew (back seat) the check valve stem against
the snap ring.
N
No
otte
e:: The valve stem must be back seated during
normal unit operation.
7.
Coat the sealing area in the cap with compressor
oil, install and tighten the cap on the three-way
valve.
8.
Pressurize the refrigeration system and test for
leaks. If no leaks are found, evacuate the system.
9.
Recharge the unit with the proper refrigerant.
Pilot Solenoid
Removal
1.
Recover the refrigerant charge.
2.
Disconnect the wires and remove the coil from the
valve.
3.
Unsolder the refrigeration lines.
4.
Remove the mounting bolts and remove the valve.
Installation
1.
Remove the coil from the valve.
2.
Place the valve in the unit and install the mounting
bolts. The arrow on the valve indicates the direction
of flow through the valve. Verify that the arrow
points in the proper direction.
3.
Solder the refrigeration lines to the valve.
4.
Install the coil and connect the wires.
5.
Pressurize the refrigeration system and test for
leaks. If no leaks are found, evacuate the system.
6.
Recharge the unit with the proper refrigerant and
check the compressor oil.
Suction Vibrasorber
Removal
1.
Pump down the low side and equalize pressure to
slightly positive.
2.
Unsolder the suction vibrasorber from the suction
service valve.
