Trane IntelliPak 1, Инструкция по установке, эксплуатации и обслуживанию, Страница: 153 / 164

RT-SVX072A-EN 153
W WA AR RN NIIN NG G
R Ro otta attiin ng g C Co om mp po on ne en nttss!!
F Fa aiillu urre e tto o d diisscco on nn ne ecctt p po ow we err b be effo orre e sse errv viicciin ng g
cco ou ulld d rre essu ulltt iin n rro otta attiin ng g cco om mp po on ne en nttss ccu uttttiin ng g
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d de ea atth h o orr sse erriio ou uss iin njju urry y..
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n ne ecce essssa arry y tto o w wo orrkk w wiitth h lliiv ve e a an nd d e ex xp po osse ed d
rro otta attiin ng g cco om mp po on ne en nttss.. H Ha av ve e a a q qu ua alliiffiie ed d o orr
lliicce en nsse ed d sse errv viicce e 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 e ex xp po osse ed d rro otta attiin ng g
cco om mp po on ne en nttss,, p pe errffo orrm m tth he esse e tta asskkss..
☐ Manually rotate the condenser fans to ensure free
movement and check motor bearings for wear.
Verify that all of the fan mounting hardware is tight.
☐ Verify that all damper linkages move freely;
lubricate with white grease, if necessary.
☐ Check supply fan motor bearings; repair or replace
the motor as necessary. If the unit model number
indicates that the motor has an internal shaft
ground, replace with the same motor type.
☐ Check the fan shaft bearings for wear (FC fans only).
Replace the bearings as necessary. Lubricate the
supply fan shaft bearings with a lithium-based
grease.
N No otte e:: These bearings are considered permanently
lubricated for normal operation. For severe
dirty applications, if relubrication becomes
necessary, use a lithium based grease. See
Table 65, p. 137 for recommended greases.
IIm mp po orrtta an ntt:: The bearings are manufactured using a
special synthetic lithium-based grease
designed for long life and minimum
relube intervals. Over lubrication can be
just as harmful as not enough.
☐ Use a hand grease gun to lubricate these bearings
(FC fans only); add grease until a light bead appears
all around the seal. Do not over lubricate! After
greasing the bearings (FC fans only), check the
setscrews to ensure that the shaft is held securely
to the bearings and fan wheels. Make sure that all
bearing braces are tight.
☐ Check the supply fan belt(s). If the belts are frayed
or worn, replace them. Refer to the
“Fan Belt
Adjustment,” p. 137 for belt replacement and
adjustments.
☐ Check the condition of the gasket around the
control panel doors. These gaskets must fit
correctly and be in good condition to prevent water
leakage.
☐
Verify that all wire terminal connections are tight.
☐ Remove any corrosion present on the exterior
surfaces of the unit and repaint these areas.
☐ Generally inspect the unit for unusual conditions (e.
g., loose access panels, leaking piping connections,
etc.)
☐ Make sure that all retaining screws are reinstalled in
the unit access panels once these checks are
complete.
☐ With the unit running, check and record the
following:
– ambient temperature
– compressor oil level (each circuit)
– compressor suction and discharge pressures
(each circuit)
– superheat and subcooling (each circuit)
Record this data on an “operator’s maintenance log”
like the one shown in
Table 75, p. 157 . If the operating
pressures indicate a refrigerant shortage, measure the
system superheat and system subcooling. For
guidelines, refer to
“Charging by Subcooling ,” p. 119 .
IIm mp po orrtta an ntt:: Do not release refrigerant to the
atmosphere! If adding or removing
refrigerant is required, the service
technician must comply with all federal,
state and local laws. Refer to general
service bulletin MSCU-SB-1 (latest edition).
Heating Season
W WA AR RN NIIN NG G
H Ha azza arrd do ou uss V Vo olltta ag ge e!!
F Fa aiillu urre e tto o d diisscco on nn ne ecctt p po ow we err 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 b be effo orre e sse errv viicciin ng g.. F Fo ollllo ow w p prro op pe err
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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.. V Ve erriiffy y tth ha att n no o
p po ow we err iiss p prre esse en ntt w wiitth h a a v vo ollttm me ette err..
Before completing the following checks, turn the unit
O
OF FF F and lock the main power disconnect switch open.
☐ Inspect the unit air filters. If necessary, clean or
replace them.
☐ Check supply fan motor bearings; repair or replace
the motor as necessary. If the unit model number
indicates that the motor has an internal shaft
ground, replace with the same motor type.
☐ Check the fan shaft bearings for wear. Replace the
bearings as necessary. Lubricate the supply fan
shaft bearings with a lithium-based grease.
N No otte e:: These bearing are considered permanently
lubricated for normal operation. For severe
dirty applications, if relubrication becomes
necessary, use a lithium based grease. See
Table 65, p. 137 for recommended greases.
S Se errv viicce e a an nd d M Ma aiin ntte en na an ncce e