Quantcast Table 3-1. Troubleshooting - TM-5-4120-369-140035

 

Click here to make tpub.com your Home Page

Page Title: Table 3-1. Troubleshooting
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Chapter 3. MAINTENANCE INSTRUCTIONS
Up
TM-5-4120-369-14 Air Conditioner Horizontal Compact 18 000 BTU 208 Volt 3 Phase 50-60 Hertz NSN
Next
Chapter 4. ORGANIZATION MAINTENANCE INSTRUCTIONS
TM 5-4120-369-14
Table 3-1. Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
AIR CONDITIONER FAILS TO OPERATE
Check to see if main power cord is plugged in.
Step 1.
Connect power cable to receptacle (Figure 2-1) supplying 208 VAC, 3 phase
power of the proper frequency.
Check to see if control and compressor circuit breakers are in OFF position.
Step 2.
Reset circuit breakers (Figure 2-1).
Check to see if mode selector switch is in OFF position.
Step 3.
Turn selector switch to desired operation (Figure 2-1).
If air conditioner still is inoperative, report condition to organization maintenance.
Step 4.
2.
INSUFFICIENT COOLING
Check to see if mode selector switch is in proper position.
Step 1.
Set switch to COOL (Figure 2-1).
Check to see if temperature selector switch is in correct position.
Step 2.
Adjust setting to COOLER (Figure 2-1).
Check to see if sufficient air is passing over evaporator coil.
Step 3.
Open evaporator inlet louvers (Figure 2-1).
Remove any obstructions from
evaporator inlet and outlet louvers.
Inspect for clogged air filter.
Step 4.
Report clogged filter condition to organizational maintenance.
Check to see if too much outside air is entering unit.
Step 5.
Close or adjust damper door (Figure 2-1).
Check to see if the system contains sufficient refrigerant by inspecting
Step 6.
liquid sight indicator (paragraph 3-8).
Check to see if evaporator fan speed switch is set to LOW speed position.
Step 7.
Reset switch to HIGH speed position (Figure 2-1).
Check to see if sufficient air is passing through condenser coil.
Step 8.
Remove any obstructions from condenser fan inlet and outlet.
3.
NO HEAT OR LOW CAPACITY HEAT
Check to see if mode selector switch is properly set.
Step 1.
Set switch to LOW HEAT or HIGH HEAT (Figure 2-1).
Check to see if temperature selector switch is set correctly.
Step 2.
Adjust to WARMER setting (Figure 2-1).
Check for insufficient air movement over heaters.
Step 3.
Remove any obstructions from evaporator air intake and discharge louvers.
Make sure intake louvers are open (Figure 2-1).
3-2

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.