Trane IntelliPak SCRF 25, Инструкция по установке, эксплуатации и обслуживанию

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SCXF-SVX01Q-EN 81
Startup
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..
N NO OT TIIC CE E
C Co om mp prre esssso orr D Da am ma ag ge e!!
F Fa aiillu urre e tto o ffo ollllo ow w iin nssttrru uccttiio on nss b be ello ow w w wiillll cca au usse e tth he e
cco om mp prre esssso orr tto o o op pe erra atte e iin n a a v va accu uu um m a an nd d rre essu ulltt iin n
cco om mp prre esssso orr d da am ma ag ge e..
N Ne ev ve err m ma an nu ua alllly y o orr a au utto om ma attiicca alllly y p pu um mp p d do ow wn n
ssy ysstte em m b be ello ow w 7 7 p pssiig g..
N NO OT TIIC CE E
C Co om mp prre esssso orr D Da am ma ag ge e!!
F Fa aiillu urre e tto o ffo ollllo ow w iin nssttrru uccttiio on nss cco ou ulld d rre essu ulltt iin n
cco om mp prre esssso orr d da am ma ag ge e..
K Ke ee ep p ccrra an nkkcca asse e h he ea atte errss o on n w wh he en ne ev ve err rre effrriig ge erra an ntt iiss
iin n tth he e ssy ysstte em m..
IIff ccrra an nkkcca asse e h he ea atte errss h ha av ve e n no ott b be ee en n o on n w wiitth h
rre effrriig ge erra an ntt iin n tth he e ssy ysstte em m,, ttu urrn n tth he e ccrra an nkkcca asse e
h he ea atte errss o on n ffo orr a a m miin niim mu um m o off 2 24 4 h ho ou urrss b be effo orre e
sstta arrttiin ng g cco om mp prre esssso orrss..
To start the unit, complete the following steps in order.
Review “Preliminary Refrigerant Charging,” p. 41 , if
applicable. Confirm all steps were completed.
Air-Cooled Only
• Charging is more accurate at higher outdoor
temperatures. If outdoor temperature is < 80°F,
temporarily disable fan pressure control switches.
See unit wiring diagrams and disconnect the wires
between switches and terminal strip.
• Do not attempt to charge system with low ambient
dampers operating (if applicable). Disable these
dampers in “Open” position before proceeding.
• Evaporator load should be at least 70°F return air,
350 CFM/ton.
• Work on only one circuit at a time. See section
“General Data,” p. 14 for compressor sequencing.
N No otte e:: R-410A compressors have belly band crankcase
heaters that must be energized 24 hours before
starting compressor. Power to the unit will
energize the heaters. Heaters will be energized
during the off-cycle as long as the unit has power.
Failure to perform these pre-start instructions
could result in compressor damage.
1. Verify compressor crank case heaters have been on
for at least 24 hours.
2. Make sure all service valves are open.
3. Attach a thermocouple type temperature sensor on
liquid line close to liquid line service valve. To
ensure an accurate reading, clean line where sensor
is attached. After securing sensor to line, insulate
sensor and line to isolate it from ambient air.
4. Attach service gauges to suction and discharge
ports.
5. Check low side pressure. Low pressure cutout
opens below, and closes above, values in Table 35,
p. 62 . If the low side pressure is less than the open
psig, refrigerant may need to be added to the
suction line before starting the compressor(s) to
close the switch. SLOWLY meter into the suction
line only as much R- 410A as needed to close the
low pressure cutout. Use the VAPOR charging
connection. If possible, plan to use this entire
refrigerant bottle on the same unit in order to
minimize fractionalization. Use an accurate scale to
measure and record amount of R-410A added.
6. Switch the field supplied unit disconnect to “OFF”.
Open the unit control box and plug in the reset
relay for only the circuit being started
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..
7. Turn 115 volt control circuit switch “ON”. Close
control box and switch field supplied unit
disconnect “ON”. Unit power should be off no
longer than 60 minutes to prevent refrigerant
migration to compressor sumps. If power is off for
longer than 60 minutes, allow time for crankcase
heaters to drive refrigerant from compressor sumps
before starting compressors.
8. Adjust setpoints at the HI.