Trane RAUJ-C20, Installation, Operation And Maintenance Manual

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112 SS-SVX11K-EN
Figure 74. System charging chart (all units)
250
300
350
400
450
500
550
600
650
700
70 80 90 100 110 120 130 140 150
Di
s
c
h
a
rge
P
re
s
s
u
re
,
p
s
ig
Liquid Line Temp at Outdoor Unit, °F
Remove
Charge
Add Charge
150’ lines
150" lines
Add Charge
50’ lines
Add Charge Add Charge
Motors Rotating Backward
If, during startup steps above, some or all of the
condenser motors are rotating backward, follow the
steps below.
• If all motors are rotating backward, see All Motors
are Rotating Backward section.
• If some, but not all motors are rotating backward,
see Some Motors are Rotating Backward section.
•
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 a an nd d sslla assh hiin ng g
tte ecch hn niicciia an n w wh hiicch h 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
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 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
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.. 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..
All Motors are Rotating Backward
1. Turn the field supplied disconnect switch or circuit
protector switch that provides power to the
condensing unit to the “Off” position. Lock the
disconnect switch in the open position while
working at the unit.
2. Verify that field connected main power phase
sequence matches that specified on the unit wiring
diagrams. Rotation will be incorrect if any two
power wires are interchanged at the unit terminal
block 1TB1 or the optional factory mounted non-
fused disconnect switch (1S1) in the unit control
panel.
3. Check the unit phase module (1U1) for correct
operation and unit wiring.
S Stta arrtt--U Up p