Trane IntelliPak 2 Series, Installation, Operation And Maintenance Manual

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RT-SVX24Q-EN 205
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☐ Verify that the ignition system operates properly.
Coil Cleaning
Regular coil maintenance, including annual cleaning
enhances the unit’s operating efficiency by minimizing
the following:
• Compressor head pressure and amperage draw
• Water carryover
• Fan brake horsepower
• Static pressure losses
At least once each year—or more often if the unit is
located in a “dirty” environment—clean the
evaporator, microchannel condenser, and reheat coils
using the instructions outlined below. Be sure to follow
these instructions as closely as possible to avoid
damaging the coils.
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Refrigerant Coils
To clean refrigerant coils, use a soft brush and a
sprayer.
IIm mp po orrtta an ntt:: DO NOT use any detergents with
microchannel condenser coils. Pressurized
water or air ONLY.
For evaporator and reheat coil cleaners, contact the
local Trane Parts Center for appropriate detergents.
1. Remove enough panels from the unit to gain safe
access to coils.
2. Straighten any bent coil fins with a fin comb.
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.
IIm mp po orrtta an ntt:: 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.
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.
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