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HEAT EXCHANGER
Th e fo l l o w i n g g e n e ra l in fo rma tio n e xp la in s h o w to successf ully r eplace t he heat exchanger
f o r an y m o de l c o ve re d i n th is ma n u a l.
REPLACING HEAT EXCHANGER
Top Mount Models
lf a l e a k i s f o u n d i n t he he a t e xch an g e r
t h at c a n' t be re p a i re d , o r i f te sts p ro ve th a t
t h e c ap i l l a ry t u b e i s restri cte d, th e he at
ex ch a n ge r m u s t b e r e pl a ce d a s fol l o ws:
1 . D i s c o nn e c t t h e un i t fro m po we r
s o u rc e .
2. I n s t a l l a se rv i ce va lve a s cl ose a s yo u
c a n t o t h e t i p o f th e p ro ce ss tu b e.
C o n ne c t a h o s e t o th e p i e rci n g valve
a nd re l ea se t h e p re ssur e o utd o o rs.
3. R e m ov e s c re w s se cu rin g fa ci a (fa -
c ad e ). R em o ve th e scre w s fro m th e
d i v i d e r c h a n n e l . C a r e f u f l y p u l l t h e d i -
v i d e r o u t f r o m u n d e r t h e c e n t e r h i n g e .
4. P ul l a nd s l i d e th e tr ee ze r che st b o tto m
o u t o f t h e ca b i n e t.
5 . L i ft a n d p u l l o u t t he fre e ze r co i l co ve r .
It i s v e r y i m p o rt a n t th a t th i s co ver be
re in st a l l e d e xa ct l y as i t w as ori g i nally.
6 . R e m o v e t h e a i r t u n n e l f r o m t h e t r e e z e r
b a ck .
7. D i s c o n n e ct t h e d e fro st h e a te r a nd
t h erm o s t a t wi re l ea d s.
8 . L i f t t h e t r e e z e r c o i l u n t i l i t c l e a r s t h e
f o a m d r i p t r a y .
9 . W o rk i n g a t t h e c ab i n et re a r, remo ve
t h e s c re w s th a t re ta i n th e wi re co ve r .
C u t t he ti e s th a t se cu re th e w ire h a r -
n e s s to th e h e a t e xch an g e r.
1 0 . C u t t h e h e a t e x c h a n g e r a t t h e p o i n t
w h e r e r u b b e r s l e e v e i s t a p e d .
1 1 . Str aighten t he heat exchanger and
b end it up about 45 degr ees away f rom
the cabinet at t he suct ion seal plug.
1 2 . Pull t he fr eezer coil and heat exchan-
g e r t u b i n g o u t t h e c a b i n e t f r o n t .
1 3 . Twist one br acket to disengage ev a-
porat or dr ip t ray fr om evapor ator tub-
i n g .
1 4 . U n s o l d e r t h e c a p i l l a r y t u b e a n d t h e
s u c t i o n l i n e f r o m t h e f r e e z e r c o i l .
1 5 . C l e a n t h e t u b i n g . C o n n e c t t h e r e p l a c e -
ment heat exchanger t o t he t reez er
c o i l a n d s o l d e r a l l t h e j o i n t s . B e c a r e -
f u l w h e n u n s o l d e r i n g a n d s o l d e r i n g
the joint s on t he t reezer coil to prev ent
o v e r h e a t i n g t h e c o p p e r t o a l u m i n u m
butt w elds.
1 6 . V i s u a l l y c h e c k t h e j o i n t s f o r l e a k s .
R einstall evaporat or dr ip tr ay by en-
gaging brackets to evapor at or t ubing.
4-4
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