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RT-SVX36G-EN
Maintenance
3. For accessible areas, remove loose dirt and debris from both sides of the coil. For dual row
microchannel condenser coil applications, seek pressure coil wand extension through the local
Trane Parts Center.
4. When cleaning evaporator and reheat coils, mix the detergent with water according to the
manufacturer’s instructions. If desired, heat the solution to 150° F maximum to improve its
cleansing capability.
Important:
DO NOT use any detergents with microchannel coils. Pressurized water or air ONLY.
5. Pour the cleaning solution into the sprayer. If a high-pressure sprayer is used:
a. The minimum nozzle spray angle is 15 degrees.
b. Do not allow sprayer pressure to exceed 600 psi.
c. Spray the solution perpendicular (at 90 degrees) to the coil face.
d. For evaporator and reheat coils, maintain a minimum clearance of 6" between the sprayer
nozzle and the coil. For microchannel condenser coils, optimum clearance between the
sprayer nozzle and the microchannel coil is 1"-3”.
6. Spray the leaving-airflow side of the coil first; then spray the opposite side of the coil. For
evaporator and reheat coils, allow the cleaning solution to stand on the coil for five minutes.
7.
Rinse both sides of the coil with cool, clean water.
8. Inspect both sides of the coil; if it still appears to be dirty, repeat Steps 6 and 7.
9. Reinstall all of the components and panels removed in Step 1; then restore power to the unit.
10. For evaporator and reheat coils, use a fin comb to straighten any coil fins which were
inadvertently bent during the cleaning process.
Microchannel Condenser Coil Repair and Replacement
If microchannel condenser coil repair or replacement is required, seek HVAC Knowledge Center
information or Service Guide document RT-SVB83*-EN for further details.
Steam or Hot Water Coils
To clean a steam or hot water coil, use a soft brush, a steam-cleaning machine, and water.
1.
Verify that switches 1S1 and 1S70 are turned “OFF”, and that the main unit disconnect is locked
open.
2. Remove enough panels and components from the unit to gain sufficient access to the coil.
3. Straighten any bent coil fins with a fin comb. (Use the data in
to determine the
appropriate fin comb size.)
4. Remove loose dirt and debris from both sides of the coil with a soft brush.
5. Use the steam-cleaning machine to clean the leaving-air side of the coil first; start at the top of
the coil and work downward; then clean the entering-air side of the coil, starting at the top of
the coil and working downward.
6. Check both sides of the coil; if it still appears dirty, repeat Step 5.
7.
Reinstall all of the components and panels removed in Step 2; then restore power to the unit.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to
disconnect power before servicing could result in death or serious injury.
