Trane Voyager RT-SVX17C-EN, Установка, эксплуатация и обслуживание

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Unit Start-Up
[ ] Open the disconnect switch or circuit protector switch that
provides the supply power to the unit's power terminal
block or to the unit mounted disconnect switch.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote discon-
nects before servicing. Follow proper lockout/tagout
procedures to ensure the power can not be inadvertently
energized. Failure to disconnect power before servicing
could result in death or serious injury.
[ ] Connect the phase sequence indicator leads to the termi-
nal block or unit mounted disconnect switch as follows;
Phase Sequence Leads Unit Power Terminal
Black (phase A) L1
Red (phase B) L2
Yellow (Phase C) L3
[ ] Turn the "System" selection switch to the "Off" position and
the "Fan" selection switch (if Applicable) to the "Auto" po-
sition.
[ ] Close the disconnect switch or circuit protector switch that
provides the supply power to the unit's power terminal
block or unit mounted disconnect switch.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote discon-
nects before servicing. Follow proper lockout/tagout
procedures to ensure the power can not be inadvertently
energized. Failure to disconnect power before servicing
could result in death or serious injury.
HIGH VOLTAGE IS PRESENT AT TERMINAL BLOCK
HTB1 OR UNIT DISCONNECT SWITCH.
[ ] Observe the ABC and CBA phase indicator lights on the
face of the sequencer. The ABC indicator light will glow if the
phase is ABC. If the CBA indicator light glows, open the dis-
connect switch or circuit protection switch and reverse any
two power wires.
[ ] Restore main electrical power and recheck phasing. If the
phasing is correct, open the disconnect switch or circuit
protection switch and remove the phase sequence indi-
cator.
Voltage Supply and Voltage Imbalance
Supply Voltage
Electrical power to the unit must meet stringent requirements
for the unit to operate properly. Measure each leg (phase-to-
phase) of the power supply. Each reading must fall within the
utilization range stamped on the unit nameplate. If any of the
readings do not fall within the proper tolerances, notify the
power company to correct this situation before operating the
unit.
Be sure to complete all of the procedures described in this
section before starting the unit for the first time.
Preparing the Unit for Operation
Use the checklist provided below in conjunction with the "In-
stallation Checklist” to ensure that the unit is properly in-
stalled and ready for operation.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote discon-
nects before servicing. Follow proper lockout/tagout
procedures to ensure the power can not be inadvertently
energized. Failure to disconnect power before servicing
could result in death or serious injury.
[ ] Check all electrical connections for tightness and "point of
termination" accuracy.
[ ] Verify that the condenser airflow will be unobstructed.
[ ] Check the compressor crankcase oil level. Oil should be
visible in the compressor oil sight glass. The oil level
should be 1/2 to 3/4 high in the sight glass with the com-
pressor "Off".
[ ] Optional Service Valves - Verify that the compressor dis-
charge service valve, suction service valve, and liquid
line service valve is backseated on each circuit.
CAUTION
Compressor Damage!
Do not allow liquid refrigerant to enter the suction line.
Excessive liquid accumulation in the liquid lines may re-
sult in compressor damage.
Compressor service valves must be fully opened before
start-up (suction, discharge, liquid line and oil line).
[ ] Check the supply fan belts for proper tension and the fan
bearings for sufficient lubrication. If the belts require adjust-
ment, or if the bearings need lubricating, refer to the Mainte-
nance section of this manual for instructions.
[ ] Inspect the interior of the unit for tools and debris and in-
stall all panels in preparation for starting the unit.
Electrical Phasing
Unlike traditional reciprocating compressors, scroll compres-
sors are phase sensitive. Proper phasing of the electrical
supply to the unit is critical for proper operation and reliabil-
ity.
The compressor motor is internally connected for clockwise
rotation with the incoming power supply phased as A, B, C.
Proper electrical supply phasing can be quickly determined
and corrected before starting the unit by using an instrument
such as an Associated Research Model 45 Phase Sequence
Indicator and following the steps below: