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M M a a i i n n t t e e n n a a n n c c e e
Figure 46. Unit filter sizes
24 x 20
24 x 20
24 x 20
24 x 20
24 x 20
24 x 20
Inspecting and Cleaning the
Drain Pan
Check the condensate drain pan and drain line to
ensure that the condensate drains properly at least
every six months or as dictated by operating
experience.
If evidence of standing water or condensate overflow
exists, take steps to identify and remedy the cause
immediately. Refer to the troubleshooting section of
this manual for possible causes and solutions.
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 . .
Clean drain pans using the following procedure:
1. Disconnect all electrical power to the unit.
2. Don the appropriate personal protective equipment
(PPE).
3. Remove all standing water.
4. Use a scraper or other tools to remove and solid
matter. Remove solid matter with a vacuum device
that utilizes high efficiency particulate arrestance
(HEPA) filters with a minimum efficiency of 99.97%
at 0.3 micron particle size.
5. Thoroughly clean the contaminated area(s) with a
mild bleach and water solution or an EPA-approved
sanitizer specifically designed for HVAC use.
Carefully follow the sanitizer manufacturer's
66
24 x 20
24 x 20
24 x 20
24 x 20
24 x 20
24 x 20
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.
Compressors
Scroll Compressor Failure Diagnosis and
Replacement
If compressor failure is suspected, refer to COM-SVN01
for detailed information regarding compressor failure
diagnosis and replacement of scroll compressors.
Refrigerant System
If refrigerant system repair is required, Leak Test,
Brazing and Evacuation Procedures are described.
Preliminary charging is described in the Installation–
Mechanical section,
"Preliminary Refrigerant
Charging," p. 34
and final charging is described in the
Startup section,
"Final Refrigerant Charge," p.
Refrigerant systems that have been opened must have
filter driers replaced and complete leak test and
evacuation before recharging. Unit is equipped with
replaceable filter core option for easy maintenance.
Refrigerant Leak Test Procedure
W W A A R R N N I I N N G G
C C o o n n f f i i n n e e d d S S p p a a c c e e H H a a z z a a r r d d s s ! !
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
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 o o n n o o t t w w o o r r k k i i n n c c o o n n f f i i n n e e d d s s p p a a c c e e s s w w h h e e r r e e r r e e f f r r i i g g e e r r a a n n t t
o o r r o o t t h h e e r r h h a a z z a a r r d d o o u u s s , , t t o o x x i i c c , , o o r r f f l l a a m m m m a a b b l l e e g g a a s s m m a a y y
b b e e l l e e a a k k i i n n g g . . R R e e f f r r i i g g e e r r a a n n t t o o r r o o t t h h e e r r g g a a s s e e s s c c o o u u l l d d
d d i i s s p p l l a a c c e e a a v v a a i i l l a a b b l l e e o o x x y y g g e e n n t t o o b b r r e e a a t t h h e e , , c c a a u u s s i i n n g g
p p o o s s s s i i b b l l e e a a s s p p h h y y x x i i a a t t i i o o n n o o r r o o t t h h e e r r s s e e r r i i o o u u s s h h e e a a l l t t h h
r r i i s s k k s s . . S S o o m m e e g g a a s s e e s s m m a a y y b b e e f f l l a a m m m m a a b b l l e e a a n n d d / / o o r r
e e x x p p l l o o s s i i v v e e . . I I f f a a l l e e a a k k i i n n s s u u c c h h s s p p a a c c e e s s i i s s d d e e t t e e c c t t e e d d , ,
e e v v a a c c u u a a t t e e t t h h e e a a r r e e a a i i m m m m e e d d i i a a t t e e l l y y a a n n d d c c o o n n t t a a c c t t t t h h e e
p p r r o o p p e e r r r r e e s s c c u u e e o o r r r r e e s s p p o o n n s s e e a a u u t t h h o o r r i i t t y y . .
W W A A R R N N I I N N G G
E E x x p p l l o o s s i i o o n n H H a a z z a a r r d d ! !
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 s s a a f f e e l l e e a a k k t t e e s s t t p p r r o o c c e e d d u u r r e e 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 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 o o r r
e e q q u u i i p p m m e e n n t t o o r r p p r r o o p p e e r r t t y y - - o o n n l l y y - - d d a a m m a a g g e e . .
N N e e v v e e r r u u s s e e a a n n o o p p e e n n f f l l a a m m e e t t o o d d e e t t e e c c t t g g a a s s l l e e a a k k s s . . U U s s e e a a
l l e e a a k k t t e e s s t t s s o o l l u u t t i i o o n n f f o o r r l l e e a a k k t t e e s s t t i i n n g g . .
63.
PKG-SVX027C-EN
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