Figure 7.8 Water-Cooled Condenser Cleaning - Forced Circulation - Carrier PrimeLINE Operation And Service Manual

2. To remove slime or mud, use Aluminum Cleaner® 164. Mix 170 grams (6 ounces) per 3.785 liters (1 U.S.
gallon) of water. Mix cleaner in one half the volume of water, while stirring, and then add remaining water.
Warm this solution and circulate through the tubes until all slime and mud has been removed.
3. After cleaning, flush the tubes thoroughly with fresh clean water.
4. Prepare a 15% by volume solution for de-scaling, by diluting Oakite Compound No. 32 with water. This is
accomplished by slowly adding 0.47 liter (1 U.S. pint) of the acid (Oakite No. 32) to 2.8 liters (3 U.S. quarts)
of water.
Oakite No. 32 is an acid. Be sure that the acid is slowly added to the water. DO NOT PUT
WATER INTO THE ACID - this will cause spattering and excessive heat.
Wear rubber gloves and wash the solution from the skin immediately if accidental contact
occurs. Do not allow the solution to splash onto concrete.
5. Fill the tubes with this solution by filling from the bottom. See

Figure 7.8 Water-Cooled Condenser Cleaning - Forced Circulation

1
12
11
10
1) Pump
2) Priming Connection (Centrifugal pump
50 gpm at 35' head)
3) Globe valves
4) Vent
5) Close vent pipe valve when pump is
running
6. Allow the Oakite No. 32 solution to soak in the tube coils for several hours, periodically pump-circulating it
with an acid-proof pump.
An alternate method may be used whereby a pail (see
to the coils by a hose can serve the same purpose by filling and draining. The solution must contact the
scale at every point for thorough de-scaling. Air pockets in the solution should be avoided by regularly
opening the vent to release gas. Keep flames away from the vent gases.
WARNING
!
WARNING
!
2
It is important to provide a vent at the top for escaping gas.
Figure 7.8.
4
3
8
9
6) Condenser
7) Remove water regulating valve
8) Return
9) Fine mesh screen
10) Pump support
11) Tank
12) Suction
- - - - -
NOTE
Figure 7.9) filled with the solution and attached
7–19
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6
7
T-362