Trane CCRC 20, Installation, Operation And Maintenance Manual

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CXRC-SVX01J-EN 25
Maintenance
Read the following Warnings and Cautions before
beginning any maintenance procedures.
W WA AR RN NIIN NG G
H Ha azza arrd do ou uss S Se errv viicce e P Prro occe ed du urre ess!!
F Fa aiillu urre e tto o ffo ollllo ow w a allll p prre ecca au uttiio on nss iin n tth hiiss m ma an nu ua all a an nd d
o on n tth he e tta ag gss,, ssttiicckke errss,, a an nd d lla ab be ellss cco ou ulld d rre essu ulltt iin n
d de ea atth h o orr sse erriio ou uss iin njju urry y..
T Te ecch hn niicciia an nss,, iin n o orrd de err tto o p prro otte ecctt tth he em msse ellv ve ess ffrro om m
p po otte en nttiia all e elle eccttrriicca all,, m me ecch ha an niicca all,, a an nd d cch he em miicca all
h ha azza arrd dss,, M MU US ST T ffo ollllo ow w p prre ecca au uttiio on nss iin n tth hiiss m ma an nu ua all
a an nd d o on n tth he e tta ag gss,, ssttiicckke errss,, a an nd d lla ab be ellss,, a ass w we ellll a ass tth he e
ffo ollllo ow wiin ng g iin nssttrru uccttiio on nss:: U Un nlle essss ssp pe ecciiffiie ed d o otth he errw wiisse e,,
d diisscco on nn ne ecctt a allll e elle eccttrriicca all p po ow we err iin nccllu ud diin ng g rre em mo otte e
d diisscco on nn ne ecctt a an nd d d diisscch ha arrg ge e a allll e en ne errg gy y sstto orriin ng g
d de ev viicce ess ssu ucch h a ass cca ap pa acciitto orrss b be effo orre e sse errv viicciin ng g..
F Fo ollllo ow w p prro op pe err llo occkko ou utt//tta ag go ou utt p prro occe ed du urre ess tto o
e en nssu urre e tth he e p po ow we err cca an n n no ott b be e iin na ad dv ve errtte en nttlly y
e en ne errg giizze ed d.. W Wh he en n n ne ecce essssa arry y tto o w wo orrkk w wiitth h lliiv ve e
e elle eccttrriicca all cco om mp po on ne en nttss,, h ha av ve e a a q qu ua alliiffiie ed d lliicce en nsse ed d
e elle eccttrriicciia an n o orr o otth he err iin nd diiv viid du ua all w wh ho o h ha ass b be ee en n
ttrra aiin ne ed d iin n h ha an nd dlliin ng g lliiv ve e e elle eccttrriicca all cco om mp po on ne en nttss
p pe errffo orrm m tth he esse e tta asskkss..
Refrigerant System
Refrigerant Leak Test Procedure
W WA AR RN NIIN NG G
C Co on nffiin ne ed d S Sp pa acce e H Ha azza arrd dss!!
F Fa aiillu urre e tto o ffo ollllo ow w iin nssttrru uccttiio on nss b be ello ow w cco ou ulld d rre essu ulltt iin n
d de ea atth h o orr sse erriio ou uss iin njju urry y..
D Do o n no ott w wo orrkk iin n cco on nffiin ne ed d ssp pa acce ess w wh he erre e rre effrriig ge erra an ntt
o orr o otth he err h ha azza arrd do ou uss,, tto ox xiicc o orr fflla am mm ma ab blle e g ga ass m ma ay y b be e
lle ea akkiin ng g.. R Re effrriig ge erra an ntt o orr o otth he err g ga asse ess cco ou ulld d d diissp plla acce e
a av va aiilla ab blle e o ox xy yg ge en n tto o b brre ea atth he e,, cca au ussiin ng g p po ossssiib blle e
a assp ph hy yx xiia attiio on n o orr o otth he err sse erriio ou uss h he ea alltth h rriisskkss.. S So om me e
g ga asse ess m ma ay y b be e fflla am mm ma ab blle e a an nd d o orr e ex xp pllo ossiiv ve e.. IIff a a lle ea akk
iin n ssu ucch h ssp pa acce ess iiss d de ette ecctte ed d,, e ev va accu ua atte e tth he e a arre ea a
iim mm me ed diia atte elly y a an nd d cco on ntta acctt tth he e p prro op pe err rre essccu ue e o orr
rre essp po on nsse e a au utth ho orriitty y..
W WA AR RN NIIN NG G
E Ex xp pllo ossiio on n H Ha azza arrd d!!
F Fa aiillu urre e tto o ffo ollllo ow w ssa affe e lle ea akk tte esstt p prro occe ed du urre ess b be ello ow w
cco ou ulld d rre essu ulltt iin n d de ea atth h o orr sse erriio ou uss iin njju urry y o orr
e eq qu uiip pm me en ntt o orr p prro op pe errtty y--o on nlly y--d da am ma ag ge e..
N Ne ev ve err u usse e a an n o op pe en n fflla am me e tto o d de ette ecctt g ga ass lle ea akkss.. U Usse e a a
lle ea akk tte esstt sso ollu uttiio on n ffo orr lle ea akk tte essttiin ng g..
W WA AR RN NIIN NG G
E Ex xp pllo ossiio on n H Ha azza arrd d!!
F Fa aiillu urre e tto o ffo ollllo ow w tth he esse e iin nssttrru uccttiio on nss cco ou ulld d rre essu ulltt iin n
d de ea atth h o orr sse erriio ou uss iin njju urry y o orr e eq qu uiip pm me en ntt o orr p prro op pe errtty y--
o on nlly y d da am ma ag ge e..
U Usse e o on nlly y d drry y n niittrro og ge en n w wiitth h a a p prre essssu urre e rre eg gu ulla atto orr ffo orr
p prre essssu urriizziin ng g u un niitt.. D Do o n no ott u usse e a acce etty ylle en ne e,, o ox xy yg ge en n o orr
cco om mp prre esssse ed d a aiirr o orr m miix xttu urre ess cco on ntta aiin niin ng g tth he em m ffo orr
p prre essssu urre e tte essttiin ng g.. D Do o n no ott u usse e m miix xttu urre ess o off a a
h hy yd drro og ge en n cco on ntta aiin niin ng g rre effrriig ge erra an ntt a an nd d a aiirr a ab bo ov ve e
a attm mo ossp ph he erriicc p prre essssu urre e ffo orr p prre essssu urre e tte essttiin ng g a ass tth he ey y
m ma ay y b be ecco om me e fflla am mm ma ab blle e a an nd d cco ou ulld d rre essu ulltt iin n a an n
e ex xp pllo ossiio on n.. R Re effrriig ge erra an ntt,, w wh he en n u usse ed d a ass a a ttrra acce e g ga ass
ssh ho ou ulld d o on nlly y b be e m miix xe ed d w wiitth h d drry y n niittrro og ge en n ffo orr
p prre essssu urriizziin ng g u un niittss..
W WA AR RN NIIN NG G
E Ex xp pllo ossiio on n H Ha azza arrd d!!
F Fa aiillu urre e tto o ffo ollllo ow w iin nssttrru uccttiio on n b be ello ow w cco ou ulld d rre essu ulltt iin n
d de ea atth h o orr sse erriio ou uss iin njju urry y..
D Do o n no ott e ex xcce ee ed d u un niitt n na am me ep plla atte e d de essiig gn n p prre essssu urre ess
w wh he en n lle ea akk tte essttiin ng g ssy ysstte em m..
W WA AR RN NIIN NG G
R R--4 41 10 0A A R Re effrriig ge erra an ntt u un nd de err H Hiig gh he err
P Prre essssu urre e tth ha an n R R--2 22 2!!
F Fa aiillu urre e tto o u usse e p prro op pe err e eq qu uiip pm me en ntt o orr cco om mp po on ne en nttss a ass
d de essccrriib be ed d b be ello ow w,, cco ou ulld d rre essu ulltt iin n e eq qu uiip pm me en ntt ffa aiilliin ng g
a an nd d p po ossssiib blly y e ex xp pllo od diin ng g,, w wh hiicch h cco ou ulld d rre essu ulltt iin n
d de ea atth h,, sse erriio ou uss iin njju urry y,, o orr e eq qu uiip pm me en ntt d da am ma ag ge e..
T Th he e u un niittss d de essccrriib be ed d iin n tth hiiss m ma an nu ua all u usse e R R--4 41 10 0A A
rre effrriig ge erra an ntt w wh hiicch h o op pe erra atte ess a att h hiig gh he err p prre essssu urre ess
tth ha an n R R--2 22 2.. U Usse e O ON NL LY Y R R--4 41 10 0A A rra atte ed d sse errv viicce e
e eq qu uiip pm me en ntt o orr cco om mp po on ne en nttss w wiitth h tth he esse e u un niittss.. F Fo orr
ssp pe ecciiffiicc h ha an nd dlliin ng g cco on ncce errn nss w wiitth h R R--4 41 10 0A A,, p plle ea asse e
cco on ntta acctt y yo ou urr llo occa all T Trra an ne e rre ep prre esse en ntta attiiv ve e..
N No otte e:: These service procedures require working with
refrigerant. Do not release refrigerant to the
atmosphere. The service technician must comply
with all federal, state, and local laws.
IIm mp po orrtta an ntt:: When Leak-testing refrigerant systems,
observe all safety precautions. Leak test
only one circuit at a time to minimize
system exposure to potentially harmful
moisture in the air. Use R-410A refrigerant
gas as a tracer for leak detection and use
oil-pumped dry nitrogen to develop
required test pressures.