Cleaning Coil Fin; Inspecting And Cleaning Coils; Steam And Hot Water Coils - Trane IntelliPak SCWF 20 Installation, Operation And Maintenance Manual

Cleaning Coil Fin

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 C C h h e e m m i i c c a a l l s s ! !
C C o o i i l l c c l l e e a a n n i i n n g g a a g g e e n n t t s s c c a a n n b b e e e e i i t t h h e e r r a a c c i i d d i i c c o o r r h h i i g g h h l l y y
a a l l k k a a l l i i n n e e a a n n d d c c a a n n b b u u r r n n s s e e v v e e r r e e l l y y i i f f c c o o n n t t a a c c t t w w i i t t h h s s k k i i n n
o o r r e e y y e e s s o o c c c c u u r r s s . .
H H a a n n d d l l e e c c h h e e m m i i c c a a l l c c a a r r e e f f u u l l l l y y a a n n d d a a v v o o i i d d c c o o n n t t a a c c t t w w i i t t h h
s s k k i i n n . . A A L L W W A A Y Y S S w w e e a a r r P P e e r r s s o o n n a a l l P P r r o o t t e e c c t t i i v v e e
E E q q u u i i p p m m e e n n t t ( ( P P P P E E ) ) i i n n c c l l u u d d i i n n g g g g o o g g g g l l e e s s o o r r f f a a c c e e s s h h i i e e l l d d , ,
c c h h e e m m i i c c a a l l r r e e s s i i s s t t a a n n t t g g l l o o v v e e s s , , b b o o o o t t s s , , a a p p r r o o n n o o r r s s u u i i t t a a s s
r r e e q q u u i i r r e e d d . . F F o o r r p p e e r r s s o o n n a a l l s s a a f f e e t t y y r r e e f f e e r r t t o o t t h h e e c c l l e e a a n n i i n n g g
a a g g e e n n t t 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 M M a a t t e e r r i i a a l l s s S S a a f f e e t t y y D D a a t t a a S S h h e e e e t t
a a n n d d f f o o l l l l o o w w a a l l l l r r e e c c o o m m m m e e n n d d e e d d s s a a f f e e h h a a n n d d l l i i n n g g
p p r r a a c c t t i i c c e e s s . .
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 . . 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 . .
N N O O T T I I C C E E
C C o o i i l l D D a a m m a a g g e e ! !
F F a a i i l l u u r r e e t t o o f f o o l l l l o o w w i i n n s s t t r r u u c c t t i i o o n n s s b b e e l l o o w w 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
c c o o i i l l d d a a m m a a g g e e . .
D D o o n n o o t t c c l l e e a a n n t t h h e e r r e e f f r r i i g g e e r r a a n n t t c c o o i i l l w w i i t t h h h h o o t t w w a a t t e e r r o o r r
s s t t e e a a m m a a s s i i t t c c o o u u l l d d c c a a u u s s e e h h i i g g h h p p r r e e s s s s u u r r e e i i n n s s i i d d e e t t h h e e
c c o o i i l l t t u u b b i i n n g g . .
D D o o n n o o t t u u s s e e a a c c i i d d i i c c c c h h e e m m i i c c a a l l c c o o i i l l c c l l e e a a n n e e r r s s . . A A l l s s o o , , d d o o
n n o o t t u u s s e e a a l l k k a a l l i i n n e e c c h h e e m m i i c c a a l l c c o o i i l l c c l l e e a a n n e e r r s s w w i i t t h h a a p p H H
v v a a l l u u e e g g r r e e a a t t e e r r t t h h e e n n 8 8 . . 5 5 ( ( a a f f t t e e r r m m i i x x i i n n g g ) ) w w i i t t h h o o u u t t u u s s i i n n g g
a a n n a a l l u u m m i i n n u u m m c c o o r r r r o o s s i i o o n n i i n n h h i i b b i i t t o o r r i i n n t t h h e e c c l l e e a a n n i i n n g g
s s o o l l u u t t i i o o n n . .
• Keep coils clean to maintain maximum
performance. For operation at its highest efficiency,
clean the refrigerant coil often during periods of
high cooling demand or when dirty conditions
prevail. Clean the coil a minimum of once per year
to prevent dirt buildup in the coil fins, where it may
not be visible.
• Remove large debris from the coils and straighten
fins before cleaning. Remove filters before
cleaning.
• Clean refrigerant coils with cold water and
detergent, or with one of the commercially
SCXF-SVX01Q-EN
available chemical coil cleaners. Rinse coils
thoroughly after cleaning.
• Economizer and evaporator coils are installed so
the evaporator is directly behind the economizer.
To clean between the coils, remove the sheet metal
block off. Access the block off by removing the
corner panels on the left or right rear side of the
unit.
• If the refrigerant coil is installed back to back with
the waterside economizer coil, use a cleaner that is
acceptable for cleaning both types of coils.

Inspecting and Cleaning Coils

Coils become externally fouled as a result of normal
operation. Coil surface dirt reduces heat transfer ability
and can cause comfort problems, increased airflow
resistance and thus increased operating energy costs.
Inspect coils at least every six months or more
frequently as dictated by operating experience.
Cleaning frequently is dependent upon system
operating hours, filter maintenance, efficiency, and dirt
load. Following is the suggested method for cleaning

steam and hot water coils.

Steam and Hot Water Coils
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 . . 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 . .
1. Disconnect all electrical power to the unit.
2. Wear appropriate personal protective equipment
(PPE).
3. Access both sides of the coil section.
4. Use a soft brush to remove loose debris from both
sides of the coil.
5. Use a steam cleaning machine, starting from the
top of the coil and working downward. Clean the
leaving air side of the coil first, then the entering air
side. Use a block-off to prevent steam from blowing
through the coil and into a dry section of the unit.
6. Repeat step 5 as necessary. Confirm that the drain
line is open following completion of the cleaning
process.
7. Allow the unit to dry thoroughly before putting the
M M a a i i n n t t e e n n a a n n c c e e
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