Trane Voyager Commercial, Installation, Operation And Maintenance Manual

Page: 121 / 156

RT-SVX34R-EN 121
W WA AR RN NIIN NG G
H Ha azza arrd do ou uss C Ch he em miicca allss!!
C Co oiill cclle ea an niin ng g a ag ge en nttss cca an n b be e e eiitth he err a acciid diicc o orr h hiig gh hlly y
a allkka alliin ne e a an nd d cca an n b bu urrn n sse ev ve erre elly y iiff cco on ntta acctt w wiitth h sskkiin n
o orr e ey ye ess o occccu urrss..
H Ha an nd dlle e cch he em miicca all cca arre effu ulllly y a an nd d a av vo oiid d cco on ntta acctt w wiitth h
sskkiin n.. A AL LW WA AY YS S w we ea arr P Pe errsso on na all P Prro otte eccttiiv ve e
E Eq qu uiip pm me en ntt ((P PP PE E)) iin nccllu ud diin ng g g go og gg glle ess o orr ffa acce e ssh hiie elld d,,
cch he em miicca all rre essiisstta an ntt g gllo ov ve ess,, b bo oo ottss,, a ap prro on n o orr ssu uiitt a ass
rre eq qu uiirre ed d.. F Fo orr p pe errsso on na all ssa affe etty y rre effe err tto o tth he e cclle ea an niin ng g
a ag ge en ntt m ma an nu uffa accttu urre err’’ss M Ma atte erriia allss S Sa affe etty y D Da atta a S Sh he ee ett
a an nd d ffo ollllo ow w a allll rre ecco om mm me en nd de ed d ssa affe e h ha an nd dlliin ng g
p prra accttiicce ess..
Refrigerant Coils
To clean refrigerant coils, use a soft brush and a
sprayer.
IIm mp po orrtta an ntt:: DO NOT use any detergents with
microchannel condenser coils. Pressurized
water or air ONLY.
For evaporator and reheat coil cleaners, contact the
local Trane Parts Center for appropriate detergents.
1. Remove enough panels from the unit to gain safe
access to coils.
a. For the 50 ton unit with the 3rd coil closest to
the bulk-head, safe access can be gained by
removal of the unit side panels.
b. For the 40 ton and 50 ton units, access to the 2-
row microchannel condenser coils removal of
the corner posts will be necessary.
W WA AR RN NIIN NG G
N No o S Stte ep p S Su urrffa acce e!!
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 w wa allkk o on n tth he e ssh he ee ett m me etta all d drra aiin n p pa an n..
W Wa allkkiin ng g o on n tth he e d drra aiin n p pa an n cco ou ulld d cca au usse e tth he e
ssu up pp po orrttiin ng g m me etta all tto o cco olllla ap psse e a an nd d rre essu ulltt iin n tth he e
o op pe erra atto orr//tte ecch hn niicciia an n ffa alllliin ng g..
N No otte e:: Before attempting to enter the unit,
bridge between the main supports.
Bridging may consist of multiple 2 by 12
boards or sheet metal grating.
2. Straighten any bent coil fins with a fin comb.
3. For accessible areas, remove loose dirt and debris
from both sides of the coil. For dual row
microchannel condenser coil applications, seek
pressure coil wand extension through the local
Trane Parts Center.
4. When cleaning evaporator and reheat coils, mix the
detergent with water according to the
manufacturer’s instructions. If desired, heat the
solution to 150° F maximum to improve its
cleansing capability.
IIm mp po orrtta an ntt:: DO NOT use any detergents with
microchannel coils. Pressurized water
or air ONLY.
5. Pour the cleaning solution into the sprayer. If a
high-pressure sprayer is used:
a. The minimum nozzle spray angle is 15 degrees.
b. Do not allow sprayer pressure to exceed 600 psi.
c. Spray the solution perpendicular (at 90 degrees)
to the coil face.
d. For evaporator and reheat coils, maintain a
minimum clearance of 6" between the sprayer
nozzle and the coil. For microchannel condenser
coils, optimum clearance between the sprayer
nozzle and the microchannel coil is 1"-3”.
6. Spray the leaving-airflow side of the coil first; then
spray the opposite side of the coil. For evaporator
and reheat coils, allow the cleaning solution to
stand on the coil for five minutes.
7. Rinse both sides of the coil with cool, clean water.
8. Inspect both sides of the coil; if it still appears to be
dirty, repeat Steps 6 and 7.
9. Reinstall all of the components and panels removed
in Step 1; then restore power to the unit.
10. For evaporator and reheat coils, use a fin comb to
straighten any coil fins which were inadvertently
bent during the cleaning process.
Microchannel Condenser Coil Repair and
Replacement
If microchannel condenser coil repair or replacement is
required, refer to General Service Bulletin RT-SVB83*-
EN for further details.
Final Process
Record the unit data in the blanks provided.
M Ma aiin ntte en na an ncce e