Inspecting And Cleaning The Fan; Supply Fan; Fan Drive - Trane IntelliPak SCWF 20 Installation, Operation And Maintenance Manual

mild bleach and water solution or an EPA-approved
sanitizer specifically designed for HVAC use.
Carefully follow the sanitizer manufacturer's
instructions regarding product use.
6. Immediately rinse the drain pan thoroughly with
fresh water to prevent potential corrosion from the
cleaning solution.
7. Allow the unit to dry thoroughly before putting the
system back into service.
8. Properly dispose of all contaminated materials and
cleaning solution.

Inspecting and Cleaning the Fan

W W A A R R N N I I N N G G
H H a a z z a a r r d d o o u u s s V V o o l l t t a a g g e e w w / / C C a a p p a a c c i i t t o o r r s s ! !
F F a a i i l l u u r r e e t t o o d d i i s s c c o o n n n n e e c c t t p p o o w w e e r r a a n n d d d d i i s s c c h h a a r r g g e e
c c a a p p a a c c i i t t o o r r s s b b e e f f o o r r e e s s e e r r v v i i c c i i n n g g c c o o u u l l d d r r e e s s u u l l t t i i n n d d e e a a t t h h o o r r
s s e e r r i i o o u u s s i i n n j j u u r r y y . .
D D i i s s c c o o n n n n e e c c t t a a l l l l e e l l e e c c t t r r i i c c p p o o w w e e r r , , i i n n c c l l u u d d i i n n g g r r e e m m o o t t e e
d d i i s s c c o o n n n n e e c c t t s s a a n n d d d d i i s s c c h h a a r r g g e e a a l l l l m m o o t t o o r r s s t t a a r r t t / / r r u u n n
c c a a p p a a c c i i t t o o r r s s b b e e f f o o r r e e s s e e r r v v i i c c i i n n g g . . F F o o l l l l o o w w p p r r o o p p e e r r
l l o o c c k k o o u u t t / / t t a a g g o o u u t t p p r r o o c c e e d d u u r r e e s s t t o o e e n n s s u u r r e e t t h h e e p p o o w w e e r r
c c a a n n n n o o t t b b e e i i n n a a d d v v e e r r t t e e n n t t l l y y e e n n e e r r g g i i z z e e d d . . F F o o r r v v a a r r i i a a b b l l e e
f f r r e e q q u u e e n n c c y y d d r r i i v v e e s s o o r r o o t t h h e e r r e e n n e e r r g g y y s s t t o o r r i i n n g g
c c o o m m p p o o n n e e n n t t s s p p r r o o v v i i d d e e d d b b y y T T r r a a n n e e o o r r o o t t h h e e r r s s , , r r e e f f e e r r t t o o
t t h h e e a a p p p p r r o o p p r r i i a a t t e e m m a a n n u u f f a a c c t t u u r r e e r r ' ' s s l l i i t t e e r r a a t t u u r r e e f f o o r r
a a l l l l o o w w a a b b l l e e w w a a i i t t i i n n g g p p e e r r i i o o d d s s f f o o r r d d i i s s c c h h a a r r g g e e o o f f
c c a a p p a a c c i i t t o o r r s s . . V V e e r r i i f f y y w w i i t t h h a a C C A A T T I I I I I I o o r r I I V V v v o o l l t t m m e e t t e e r r
r r a a t t e e d d p p e e r r N N F F P P A A 7 7 0 0 E E t t h h a a t t a a l l l l c c a a p p a a c c i i t t o o r r s s h h a a v v e e
d d i i s s c c h h a a r r g g e e d d . .
F F o o r r a a d d d d i i t t i i o o n n a a l l i i n n f f o o r r m m a a t t i i o o n n r r e e g g a a r r d d i i n n g g t t h h e e s s a a f f e e
d d i i s s c c h h a a r r g g e e o o f f c c a a p p a a c c i i t t o o r r s s , , s s e e e e P P R R O O D D - - S S V V B B 0 0 6 6 * * - - E E N N . .
Inspect the fan section every six months or more
frequently if operating experience dictates. Clean
accumulated dirt and organic matter on the fan interior
surfaces using the following procedure:
1. Disconnect all electrical power to the unit.
2. Wear the appropriate personal protective
equipment (PPE).
3. Use a portable vacuum with HEPA filtration to
remove the loose dirt and organic matter. The filter
should be 99.97% efficient at 0.3 micron particle
size.
4. Thoroughly clean the fan and associated
components with an industrial cleaning solution.
Carefully follow the cleaning solution
manufacturer's instructions regarding personal
protection and ventilation when using their
product.
5. Rinse the affected surfaces thoroughly with fresh
water and a fresh sponge to prevent potential
corrosion of metal surfaces.
6. Allow the unit to dry completely before putting it
back into service.
SCXF-SVX01Q-EN
7. Properly dispose of all contaminated materials and
cleaning solution.

Supply Fan

I I m m p p o o r r t t a a n n t t : : On units ordered with a Design Special of
Inlet Guide Vanes, refer to non-current IOM
(SCXF-SVX01D-EN) dated on or before
March 2008 for maintenance procedure.

Fan Drive

W W A A R R N N I I N N G G
H H a a z z a a r r d d o o u u s s V V o o l l t t a a g g e e w w / / C C a a p p a a c c i i t t o o r r s s ! !
F F a a i i l l u u r r e e t t o o d d i i s s c c o o n n n n e e c c t t p p o o w w e e r r a a n n d d d d i i s s c c h h a a r r g g e e
c c a a p p a a c c i i t t o o r r s s b b e e f f o o r r e e s s e e r r v v i i c c i i n n g g c c o o u u l l d d r r e e s s u u l l t t i i n n d d e e a a t t h h o o r r
s s e e r r i i o o u u s s i i n n j j u u r r y y . .
D D i i s s c c o o n n n n e e c c t t a a l l l l e e l l e e c c t t r r i i c c p p o o w w e e r r , , i i n n c c l l u u d d i i n n g g r r e e m m o o t t e e
d d i i s s c c o o n n n n e e c c t t s s a a n n d d d d i i s s c c h h a a r r g g e e a a l l l l m m o o t t o o r r s s t t a a r r t t / / r r u u n n
c c a a p p a a c c i i t t o o r r s s b b e e f f o o r r e e s s e e r r v v i i c c i i n n g g . . F F o o l l l l o o w w p p r r o o p p e e r r
l l o o c c k k o o u u t t / / t t a a g g o o u u t t p p r r o o c c e e d d u u r r e e s s t t o o e e n n s s u u r r e e t t h h e e p p o o w w e e r r
c c a a n n n n o o t t b b e e i i n n a a d d v v e e r r t t e e n n t t l l y y e e n n e e r r g g i i z z e e d d . . F F o o r r v v a a r r i i a a b b l l e e
f f r r e e q q u u e e n n c c y y d d r r i i v v e e s s o o r r o o t t h h e e r r e e n n e e r r g g y y s s t t o o r r i i n n g g
c c o o m m p p o o n n e e n n t t s s p p r r o o v v i i d d e e d d b b y y T T r r a a n n e e o o r r o o t t h h e e r r s s , , r r e e f f e e r r t t o o
t t h h e e a a p p p p r r o o p p r r i i a a t t e e m m a a n n u u f f a a c c t t u u r r e e r r ' ' s s l l i i t t e e r r a a t t u u r r e e f f o o r r
a a l l l l o o w w a a b b l l e e w w a a i i t t i i n n g g p p e e r r i i o o d d s s f f o o r r d d i i s s c c h h a a r r g g e e o o f f
c c a a p p a a c c i i t t o o r r s s . . V V e e r r i i f f y y w w i i t t h h a a C C A A T T I I I I I I o o r r I I V V v v o o l l t t m m e e t t e e r r
r r a a t t e e d d p p e e r r N N F F P P A A 7 7 0 0 E E t t h h a a t t a a l l l l c c a a p p a a c c i i t t o o r r s s h h a a v v e e
d d i i s s c c h h a a r r g g e e d d . .
F F o o r r a a d d d d i i t t i i o o n n a a l l i i n n f f o o r r m m a a t t i i o o n n r r e e g g a a r r d d i i n n g g t t h h e e s s a a f f e e
d d i i s s c c h h a a r r g g e e o o f f c c a a p p a a c c i i t t o o r r s s , , s s e e e e P P R R O O D D - - S S V V B B 0 0 6 6 * * - - E E N N . .
Perform the following procedures according to the
"Maintenance Periodic Check List":
1. Rotate the fan wheel to ensure it turns freely in the
proper direction and is not rubbing on the fan
housing or inlet. If necessary, center the fan wheel
again.
2. Check the position of both shafts. Fan and motor
shafts should operate parallel to each other for
maximum belt and bearing life. Shim as necessary
under the motor or fan bearings to obtain proper
alignment.
3. Check the fan motor sheave alignment with straight
edge or a tightly pulled string. For sheaves of
different widths, place a string in the center groove
of each sheave and pull it tight for a center line. See
Figure 42, p. 89 for recommended torques.
4. Once the sheaves are properly aligned, tighten
sheave set screws to proper torque.
5. Check belt tension. Refer to the "Measuring Belt
Tension" section.
6. If required, adjust belt to the minimum
recommended tension. Refer to "Adjusting Belt
Tension" section.
7. Re-tighten bearing set screws to the proper torques
after aligning the sheaves. See for proper torques.
M M a a i i n n t t e e n n a a n n c c e e
87