37RT-SVX31A-EN
150
o
F 65.6
o
C maximum to improve
its cleansing capability.
CONTAINS REFRIGERANT! SYSTEM
CONTAINS OIL AND REFRIGERANT
Do not heat the detergent-and-water
solution above 150
o
F (-9.4C). Hot liq-
uids sprayed on the exterior of the coil
will raise the coil’s internal pressure
and may cause it to burst. Failure to
follow proper procedures can result in
personal illness or injury or severe
equipment damage.
5. Pour the cleaning solution into the
sprayer. If a high-pressure sprayer
is used:
a. do not allow sprayer pressure
to exceed 600 psi (41.4 bar).
b. the minimum nozzle spray
angle is 15 degrees.
c. maintain a minimum clearance
of 6" (152.4 mm) between the
sprayer nozzle and the coil.
d. spray the solution
perpendicular (at 90 degrees) to
the coil face.
6. Spray the leaving-airflow side of the
coil first; then spray the opposite
side of the coil. 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 and any
protective covers installed in step 2.
10. Restore the unit to it’s operational
status and check system operation.
Annual Maintenance
[ ] Clean and repaint any corroded sur-
face.
Final Process
For future reference, you may find it
helpful to record the unit data re-
quested below in the blanks provided.
(1) Complete Unit Model Number:
(2) Unit Serial Number:
(3) Wiring Diagram Numbers (from unit control panel):
— schematic(s)
— connection(s)
Maintenance
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