TM 9-4120-402-14
4-33. COIL FROST SWITCH (S2).
This task covers:
a. Inspect
b. Test
c. Replace
INITIAL SETUP
Tools
Equipment Conditions:
Refrigeration Unit Service Tool Kit
Appendix B, item 1
CAUTION
Materials/Parts
Use disconnect switch (NOT POWER
CABLE) to disconnect power to unit.
Coil Frost Switch
Damage to cable connector pins will
result if cable is used.
Lock Washers (2)
Disconnect power at power source.
Remove top panel (para 4-19).
a. Inspect.
Check coil frost switch (1) for general condition and loose, broken, or missing terminals. Replace switch if
damaged.
b. Test.
(1) Tag and disconnect wire leads from coil frost switch (1).
Figure 4-34. Coil Frost Switch (S2)
4-103
