Carrier 16JA - Manual (Page 8)

TROUBLESHOOTING GUIDE
SYMPTOM OR DIFFICULTY POSSIBLE CAUSE REMEDY
A. Lithium bromide
solidifies at start-up.
1. Condenser water too cold. 1. a. Reset cooling tower bypass
valve to design conditions.
b. Check cooling tower fan con­
trol setting.
2. Air in machine. 2. Purge the machine. Use Carrier
Standard Service Techniques,
publication SM-16.
3. Improper purging. 3. a. Check to see that all valves
are in correct position.
b. Check machine leak rate with
purge.
B. Lithium bromide
solidifies during
operation.
1. Condensing water too cold. 1. a. Reset cooling tower bypass
valve to design conditions.
b. Check cooling tower fan con­
trol setting.
2. Steam pressure above design. 2. Reset to design conditions.
3. Vapor condensate temperature
too low. (Temperature should
never be below 114 F at full
load.)
3. Reduce condensing water flow.
4. Machine requires octyl alcohol. 4. Add octyl alcohol. Use Carrier
Standard Service Techniques,
publication SM-16.
5. Improper purging. 5. See Remedy in A-3 above.
6. Air leakage. 6. Leak test machine.
C. Low capacity 1. Air in machine. 1. Find and repair leak. Purge the
machine.
2. Condenser tubes dirty. Noted by
continually rising vapor con­
densate temperature (above 114
F) at full load.
2. Clean the tubes and take cor­
rective action in water treat­
ment methods. Use the Carrier
Standard Service Techniques,
publication SM-16.
3. Improper purging. 3. See Remedy in A-3.
4. Machine needs octyl alcohol. 4. Add octyl alcohol. Refer to
Carrier Standard Service Tech­
niques, publication SM-16.
5. Improper setting of capacity
control valve.
5. Reset capacity control valve to
design temperature by turning
control point adjuster down.
6. Insufficient condensing water
flow, or temperature too high.
6, a. Reset cooling tower bypass
valve to design temperature,
b. Check operation of tower fan.
c. Check the condenser water
strainer.
7. Solution temperature generator
below design at full load. Note
correct temperature at full load.
7. a. Raise steam press, to design.
b. Unplug the steam strainer
or trap.