Trane Climate Changer T Series Installation Operation & Maintenance page 93

Type K Cooling Coils
Type K cooling coils have removable headers for cleaning:
1. Remove the headers.
2. Use a small nylon or fiber brush to clean the tubes.
3. Flush the tubes with water.
4. Install a new rubber sealing gasket and be sure it seats properly when the header is
Note: Apply washers under the bolt heads. Bolts should be evenly tightened to 50 foot-
Refrigerant Coils
Hazardous Pressures!
Coils contain refrigerant under pressure. When cleaning coils, maintain coil cleaning
solution temperature under 150°F to avoid excessive pressure in the coil. Failure to
follow these safety precautions could result in coil bursting, which could result in
death or serious injury.
To clean refrigerant coils:
1. Disconnect all electrical power to the unit.
2. Wearing the appropriate personal protective equipment, use a soft brush to remove
3. Install a block-off to prevent spray from going through the coil and into a dry section
4. Mix a high-quality coil cleaning detergent with water according to the manufacturer's
Note: If the detergent is strongly alkaline after mixing (PH 8.5 or higher), it must contain
5. Place the mixed solution in a garden pump-up sprayer or high-pressure sprayer. If a
6. Spray the leaving air side of the coil first, then the entering air side.
7. Thoroughly rinse both sides of the coil and the drain pan with cool, clean water.
8. Repeat steps 6 and 7 as necessary.
9. Straighten any coil fins damaged during the cleaning process.
10. Confirm the drain line is open following the cleaning process.
11. Allow the unit to dry thoroughly before putting it back into service.
CLCH-SVX06A-EN • T-Series Climate Changer Air Handler IOM
replaced.
pounds of torque, beginning in the center and working toward the outside.
WARNING
loose debris from both sides of the coil.
of the unit and/or system ductwork.
instructions.
an inhibitor. Follow the cleaning solution manufacturer's instructions regarding
the use of the product.
high pressure sprayer is to be used:
a. Maintain minimum nozzle spray angle of 15 degrees.
b. Spray perpendicular to the coil face.
c. Keep the nozzle at least 6 inches from the coil.
d. Do not exceed 600 psi.
Routine Maintenance
93