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Maintenance Procedures
Cleaning the Condenser
Proper Water Treatment!
The use of untreated or improperly treated water in a AdaptiR™ with AFD option may result
in scaling, erosion, corrosion, algae or slime. It is recommended that the services of a qualified
water treatment specialist be engaged to determine what water treatment, if any, is required.
The Trane Company assumes no responsibility for equipment failures which result from un-
treated or improperly treated water, saline or brackish water.
Condenser tube fouling is suspect when the "approach" temperature (i.e., the difference between
the refrigerant condensing temperature and the leaving condenser water temperature) is higher
than predicted.
Standard water applications will operate with less than a 10oF approach. If the approach exceeds
10oF cleaning the condenser tubes is recommended.
If the annual condenser tube inspection indicates that the tubes are fouled, 2 cleaning methods
can be used to rid the tubes of contaminants.The methods are:
Mechanical Cleaning Procedure
Mechanical tube cleaning this method is used to remove sludge and loose material from smooth-
bore condenser tubes.
15. Remove the retaining bolts from the water boxes at each end of the condenser. Use a hoist to
16. Work a round nylon or brass bristled brush (attached to a rod) in and out of each of the con-
17. Thoroughly flush the condenser water tubes with clean water.
(To clean internally enhanced tubes, use a bi-directional brush or consult a qualified service orga-
nization for recommendations.)
Chemical Cleaning Procedure
•
All of the materials used in the external circulation system, the quantity of the solution, the du-
ration of the cleaning period, and any required safety precautions should be approved by the
company furnishing the materials or performing the cleaning.
Note: Chemical tube cleaning should always be followed by mechanical tube cleaning.
Cleaning the Evaporator
Since the evaporator is typically part of a closed circuit, it does not accumulate appreciable
amounts of scale or sludge. However, if cleaning is deemed necessary, use the same cleaning
methods described for the condenser tubes.
120
lift the water boxes.
denser water tubes to loosen the sludge.
Scale deposits are best removed by chemical means. Consult a qualified water treatment
specialist (i.e., one that knows the local water supply chemical/mineral content) for a recom-
mended cleaning solution suitable for the job. (A standard condenser water circuit is com-
posed solely of copper, cast iron and steel.) Improper chemical cleaning can damage tube
walls.
D CAUTION
RTHD-SVX04K-EN
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