4-16
insulation
). Make sure all seams are sealed tightly against
the wiring to prevent moisture seepage.
k. Slide large heat shrink tubing over both splices and
shrink tubing and heat as in step j.
l.
Secure sensor to unit and check sensor resistance as
detailed in section 4.23.
4.24 SERVICING SUCTION SOLENOID
VALVE (69NT40 ONLY)
a. Replacing the Coil
NOTE
The coil may be replaced without removing the
refrigerant.
1. Disconnect leads. Remove snap cap or locknut.
Lift off coil. (See Figure 4-21 or Figure 4-22)
2. Verify coil type, voltage and frequency of old and
new coil. This information appears on the coil housing.
b. Replacing Valve Internal Parts --- Sporlan
(See Figure 4-21)
1
2
3
5
6
7
4
SPORLAN
8
9
1. Locknut
2. Nameplate
3. Coil
4. Locknut
5. Enclosing Tube
6. Gasket
7. Stem and Plunger
8. Seat Disc
9. Body
Figure 4-21 Suction Solenoid Valves --- Sporlan
1. Remove and store the refrigerant charge in an
evacuated container. (Refer to section 4.1)
2. Remove the top locknut, nameplate and coil
assembly.
3. Using a 12 point, 1-3/8 inch box wrench, loosen
the enclosing tube locknut and bleed off remaining
refrigerant.
4. Remove enclosing tube and locknut assembly.
The gasket is inside the enclosing tube.
5. Remove seat disc from inside of body and check
for obstructions and foreign material.
6. Place the seat disc into the valve body with the
smaller diameter end facing up.
7. Install stem and plunger (item 7, Figure 4-21).
8. Place the enclosing tube locknut over the
enclosing tube. Install spacer over enclosing tube making
sure it is seated properly in the enclosing tube locknut.
Tighten enclosing tube locknut to a torque value of 2.78
mkg (20 ft-lb). Do not overtighten.
9. Install coil assembly, nameplate and top locknut.
10. Dehydrate and evacuate the system. (Refer to
section 4.3) Charge unit with refrigerant per section 4.4.
11. Start unit and check operation.
c. Replacing Valve Internal Parts --- Alco
(See Figure 4-22)
ALCO
10
11
12
13
14
15
1
2
5
6
7
4
8
9
16
3
1. Snap Cap
2. Coil
3. Installation/
Removal Tool
4. Enclosing Tube Collar
5. O-Ring
6. Enclosing Tube
7. Spring
8. Plunger
9. Gasket
10. Top Plate
11. Capscrews
12. Spring
13. Gasket
14. Diaphragm
15. O-Ring
16. Body
Figure 4-22 Suction Solenoid Valves --- Alco
1. Remove and store the refrigerant charge in an
evacuated container. (Refer to section 4.1)
2. Remove snap cap, and coil.
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