TK 56433-5-MM-EN
65
1.
Evaporator Coil
11.
Suction Pressure Transducer
2.
Heat Exchanger
12.
Suction Vibrasorber
3.
Expansion Valve
13.
ETV
4.
Condenser Coil
14.
Accumulator
5.
Discharge Pressure Transducer
15.
Filter-Drier
6.
Three-Way Valve
16.
Receiver Tank
7.
Discharge Vibrasorber
17.
Condenser Check Valve
8.
Hot Gas Bypass Valve
18.
High Pressure Relief Valve
9.
Pilot Solenoid
19.
Bypass Check Valve
10.
Compressor
Compressor
Removal
1.
Pump down the low side and equalize the pressure
to slightly positive.
2.
Loosen the engine/cross shaft belt.
3.
Front seat the discharge and suction service valves.
4.
Recover the refrigerant remaining in the
compressor.
5.
Unbolt the discharge and suction service valves
from the compressor.
6.
Disconnect the high pressure cutout switch, the
suction pressure transducer, and the pilot solenoid
line.
7.
Support the compressor and unbolt the
compressor mounting flange from the engine.
8.
Lift the service valves out of the way.
9.
Slide the compressor to the left until the coupling
pins are clear, and remove the engine/cross shaft
belt
10. Remove the compressor from the front of the unit.
Keep the compressor ports covered to prevent dust,
dirt, etc., from falling into the compressor.
N
No
otte
e:: When the compressor is removed from the
unit, the oil level should be noted, or the oil
removed from the compressor should be
measured so that the same amount of oil can
be added before placing the replacement
compressor in the unit.
Installation
1.
Slide the compressor into the unit.
2.
Place the compressor in position, install the
engine/cross shaft belt, and install the mounting
hardware.
N
No
otte
e:: The compressor drive coupling will only slide
onto the coupling pins in either of two
positions, which are 180 degrees apart.
3.
Install the service valves using new gaskets soaked
in compressor oil. Connect the high pressure cutout
switch, the suction pressure transducer, and the
pilot solenoid valve line.
4.
Pressurize the compressor and test for refrigerant
leaks.
5.
If no leaks are found, evacuate the compressor.
6.
Back seat the suction and discharge service valves.
7.
Tighten the engine/cross shaft belt.
8.
Operate the unit at least 30 minutes and inspect the
oil level in the compressor. Add or remove oil if
necessary.
9.
Check the refrigerant charge and add refrigerant if
needed.
Compressor Coupling Removal
(Standard Units)
N
No
otte
e:: If the puller tool 2040991 is unavailable or does
not fit, a suitable commercially available puller
tool can be used.
1. After the compressor has been removed from the
unit, use the appropriate Allen tool provided with
removal tool P/N 2040991 to loosen the center bolt
which holds the coupling to the compressor shaft.
2. Attach the tool to the coupling with the provided
socket head screws and spacers. Two sets of
spacers are provided with the tool, use the short
spacers with shallow compressor mounting flanges
and the longer set for deeper flanges. The side with
the countersunk holes should be toward the
coupling.
3. To prevent the tool and crankshaft from rotating,
use an appropriately sized bolt to pin the tool to the
flange. If a nut is used to prevent the bolt from
falling out, the nut should not be tightened.
4. Use the appropriate Allen tool to loosen the
coupling mounting screw.
5. Once the center screw has been loosened, back the
head against the tool and it should push the
