Trane Agility HDWA, Installation, Operation And Maintenance Manual, Page: 67 / 76

HDWA-SVX001D-EN 67
Adaptive Frequency Drive
Periodic Maintenance and
Inspection
Adaptive Frequency ™ Drive (AFD) periodic
maintenance and inspections should be performed
every 1–12 months, depending on operating
environment.
Visual Inspection—Power Removed
W WA AR RN NIIN NG G
H Ha azza arrd do ou uss V Vo olltta ag ge e w w//C Ca ap pa acciitto orrss!!
F Fa aiillu urre e tto o d diisscco on nn ne ecctt p po ow we err a an nd d d diisscch ha arrg ge e
cca ap pa acciitto orrss b be effo orre e sse errv viicciin ng g 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 Diisscco on nn ne ecctt a allll e elle eccttrriicc p po ow we err,, iin nccllu ud diin ng g rre em mo otte e
d diisscco on nn ne eccttss a an nd d d diisscch ha arrg ge e a allll m mo otto orr sstta arrtt//rru un n
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 nn no ott b be e iin na ad dv ve errtte en nttlly y e en ne errg giizze ed d.. F Fo orr v va arriia ab blle e
ffrre eq qu ue en nccy y d drriiv ve ess o orr o otth he err e en ne errg gy y sstto orriin ng g
cco om mp po on ne en nttss p prro ov viid de ed d b by y T Trra an ne e o orr o otth he errss,, rre effe err tto o
tth he e a ap pp prro op prriia atte e m ma an nu uffa accttu urre err’’ss lliitte erra attu urre e ffo orr
a allllo ow wa ab blle e w wa aiittiin ng g p pe erriio od dss ffo orr d diisscch ha arrg ge e o off
cca ap pa acciitto orrss.. V Ve erriiffy y w wiitth h a a C CA AT T IIIIII o orr IIV V v vo ollttm me ette err
rra atte ed d p pe err N NF FP PA A 7 70 0E E tth ha att a allll cca ap pa acciitto orrss h ha av ve e
d diisscch ha arrg ge ed d..
F Fo orr a ad dd diittiio on na all iin nffo orrm ma attiio on n rre eg ga arrd diin ng g tth he e ssa affe e
d diisscch ha arrg ge e o off cca ap pa acciitto orrss,, sse ee e P PR RO OD D--S SV VB B0 06 6* *--E EN N..
1. Ensure the door interlocks are present and working.
2. Verify the safety ground connections to the door
panels are securely connected.
3. Inspect power wire cables and devices to assure no
abrasion is occurring from vibrations against
chassis of cabinets, or other edges.
4. Ensure the drive interior and exterior is clear of any
dust or debris. Fans, vents, etc. must be clean.
IIm mp po orrtta an ntt:: Only use a vacuum for cleaning. Do
NOT use compressed air.
5. Inspect the interior of the drive for any signs of
moisture entry or leakage.
6. Visually inspect all drive components and wiring.
Look for signs of heat or failure (look for swelled or
leaking capacitors, discolored reactors or inductors,
broken pre-charge resistors, smoke or arc trails on
MOVs and capacitors, etc.).
7. Closely inspect the motor terminal board for any
signs of leakage, arcing, etc..
8. Check ALL cable/lug/terminal connections inside
the drive enclosure. Ensure all are clean and tight,
and not rubbing against each other anywhere.
9. Test pH levels annually. Replace fluid as necessary,
or every 5 years.
10. Remove and clean electrical panel air filters.
Operational Inspection—Power Applied
W WA AR RN NIIN NG G
L Liiv ve e E Elle eccttrriicca all C Co om mp po on ne en nttss!!
F Fa aiillu urre e tto o ffo ollllo ow w a allll e elle eccttrriicca all ssa affe etty y p prre ecca au uttiio on nss
w wh he en n e ex xp po osse ed d tto o lliiv ve e e elle eccttrriicca all cco om mp po on ne en nttss cco ou ulld d
rre essu ulltt iin n d de ea atth h o orr sse erriio ou uss iin njju urry y..
W Wh he en n iitt iiss 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 p prro op pe errlly y 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..
1. Verify the drive cabinet cooling fans are operating.
This should be done from outside the enclosure, by
looking into the cabinet at door and cabinet vents,
to avoid electrical hazards.
N No otte e:: The power module fan comes on with power.
Other fans cycle with drive operation.
2. Check historic fault codes using Adaptive
Frequency ™ Drive (AFD) control panel (LCP).
N No otte e:: The AFD control panel is used ONLY for
service and should never be used for
machine operation.
3. Check configuration settings and confirm all proper
settings are still present in the controls.
4. Review the diagnostic history.
5. Make Chiller Service report to document all
setpoints.
6. Check the UC800 alarm histories for any indications
of operational problems.
M Ma aiin ntte en na an ncce e