Carrier PrimeLINE 69NT40-561, Inspection Manual

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12. Examine the heater termination thermostat (HTT) for proper
positioning/damage (Refer to Figure 11 ). Replace as necessary.
Figure 11 Heater Termination Thermostat
13. Examine internal valves, solenoid coils, as required per unit model
number checking for proper positioning, physical damage, leaks or
corrosion. Clean, repair or replace as necessary. Refer to the
operation & service manual for details on equipped valves.
Locating operation & service manuals is explained in the Purpose
section.
14. Check channels or “T” bars on the floor and under the lower air
baffle, and kick plate, for cleanliness. Channels must be free of
debris for proper air circulation. Clean floor drains. Ensure that the
kick plate is correctly installed and in good condition for correct air
flow.
15. Check container panels, insulation, and door seals for damage.
Repair as required.
16. Check that USDA and interior communication sockets are clean,
dry and have the caps fitted.
17. Refit the upper access panel, and ensure all hardware is correctly
fitted. Replace as required.