Start-Up; System Startup Checklist - York eco2 YCAS0425EB Installation Operation & Maintenance

System Start-Up
JOB NAME: ______________________________
SALES ORDER #: _________________________
LOCATION: _______________________________
SOLD BY: ________________________________
INSTALLING
CONTRACTOR: ___________________________

START-UP

TECHNICIAN/
COMPANY: _______________________________
START-UP DATE : _________________________
CHILLER MODEL #: _______________________
SERIAL #: ________________________________
COMPRESSOR #1
MODEL#: ________________________________
SERIAL #: ________________________________
COMPRESSOR #2
MODEL#: ________________________________
SERIAL #: ________________________________
COMPRESSOR #3
MODEL#: ________________________________
SERIAL #: ________________________________
COMPRESSOR #4
MODEL#: ________________________________
SERIAL #: ________________________________
Unit Checks (No Power)
Check the system 24 hours prior to initial start
G 1. Inspect the unit for shipping or installation
damage.
G 2. Assure that all piping has been completed.
G 3. Check that the unit is properly charged and that
there are no piping leaks.
G 4. Open each compressor suction service valve, dis-
charge service valve, economizer service valve,
liquid line stop valve, and oil line ball valves.
G 5. The compressor oil level should be maintained so
that an oil level is visible in either of the two oil
separator sight glasses. In other words, oil level
should always be maintained, running or not, above
the bottom of the lower sight glass and below the
top of the upper sight glass.
96

SYSTEM STARTUP CHECKLIST

In actual operation, due to splashing,
an oil level may be seen in both sight
glasses. Run the compressor for a few
minutes, shut the system down, and as-
sure there is an oil level showing in the
bottom or top sight glass with the com-
pressor off.
If it is necessary to add oil, connect a YORK oil
pump to the charging valve on the oil separator,
but do not tighten the flare nut on the delivery tub-
ing. With the bottom (suction end) of the pump
submerged in oil to avoid entrance of air, operate
the pump until oil drips from the flare nut joint,
allowing the air to be expelled, and tighten the flare
nut. Open the compressor oil charging valve and
pump in oil until it reaches the proper level as de-
scribed above.
G
6. Assure water pumps are on. Check and adjust
water pump flow rate and pressure drop across
the cooler.
Excessive flow may cause catastrophic
damage to the evaporator
G
7. Check the control panel to assure it is free of
foreign material (wires, metal chips, etc.) .
G
8. Visually inspect wiring (power and control).
Wiring MUST meet N.E.C. and local codes. See
Fig. 8, page 35
.
G
9. Check tightness of power wiring inside the
power panel on both sides of the motor
contactors and inside the motor terminal boxes.
G
10. Check for proper size fuses in main and control
circuits.
G
11. Verify that field wiring matches the 3-phase
power requirements of the compressor. See
chiller nameplate (Page 24).
G
12. Assure 115VAC Control Power to TB1 has 30A
minimum capacity. See Fig. 12, page 39.
G
13. Be certain all water temp sensors are inserted
completely in their respective wells and are
coated with heat conductive compound.
G 1
4. Assure that evaporator TXV bulbs are strapped
onto the suction lines at 4 or 8 o'clock positions.
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