Trane IntelliPak SCRF 25, Installation, Operation And Maintenance Manual

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SCXF-SVX01Q-EN 85
Maintenance
Service Access
Access unit controls through the front, top left panel.
The panel is secured with two quick- acting fasteners
and an automatic latch, which require a screwdriver to
remove.
Removable unit panels on the right-hand side provide
access to compressors, fan, motor belts, extended
grease line fittings, and drive side bearing. On the
unit’s left side, removable panels allow access to the
expansion valves, filter driers, refrigerant sight glasses,
liquid line valves, opposite drive fan bearing, extended
grease line fittings, condensers, and waterside
economizer control valve.
The compressor, condenser, and fan motor access
panels are secured with quick acting fasteners. Fast
thread screws secure access panels for economizer
coils, evaporator coils expansion valves, water valves,
and left fan bearing. Access to other components
requires removal of semipermanent panels secured
with sheet metal screws. During operation, sight
glasses are viewable through the portholes on the
unit’s left upper panel.
Variable Frequency Drive (VFD)
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..
The VFD access panel is hinged to allow service access
to the fan motor and belt drive components that are
located behind it. To swing the panel open:
1. Remove the unit center cover panel to the left of the
VFD panel.
2. Remove and discard the sheet metal shipping
screws along the top and bottom edges of the VFD
panel.
3. Disconnect the communications cable from the
keypad on the VFD door panel.
4. Turn the two slotted-head fasteners on the right
edge of the VFD panel fully counterclockwise.
5. Pull on the handle to swing the panel 180°.
To close and reattach the panel, reverse the procedures
listed above.
N No otte ess::
• To secure the panel in the open position
during service procedures, attach the chain
mounted to the cabinet frame behind the
unit center cover panel to the chain retainer
notch on the edge of the VFD panel.
• Verify that all wires are in their proper
position and not rubbing before replacing
the panel.
• Panel weight rating = 225 lbs. total,
including factory-installed components.
Air Filters
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..
Filter access doors are on the unit’s left side. Filter
access for the 2" filter rack on optional steam and hot
water coils and airside economizers is also on the left
side of the unit. To replace throwaway filters, remove
the dirty elements and install new filters with the filter’s
directional arrows pointing toward the fan. Verify that
no air bypasses the filters. See
Figure 38, p. 86 and
Figure 39, p. 86 for proper filter placement.