96
YORK INTERNATIONAL
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.
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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
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7. Check the control panel to assure it is free of
foreign material (wires, metal chips, etc.) .
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8. Visually inspect wiring (power and control).
Wiring MUST meet N.E.C. and local codes. See
Fig. 8, page 35
.
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9. Check tightness of power wiring inside the
power panel on both sides of the motor
contactors and inside the motor terminal boxes.
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10. Check for proper size fuses in main and control
circuits.
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11. Verify that field wiring matches the 3-phase
power requirements of the compressor. See
chiller nameplate (Page 24).
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12. Assure 115VAC Control Power to TB1 has 30A
minimum capacity. See Fig. 12, page 39.
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13. Be certain all water temp sensors are inserted
completely in their respective wells and are
coated with heat conductive compound.
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4. Assure that evaporator TXV bulbs are strapped
onto the suction lines at 4 or 8 o’clock positions.
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
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1. Inspect the unit for shipping or installation
damage.
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2. Assure that all piping has been completed.
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3. Check that the unit is properly charged and that
there are no piping leaks.
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4. Open each compressor suction service valve, dis-
charge service valve, economizer service valve,
liquid line stop valve, and oil line ball valves.
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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.
System Start-Up
Summary of Contents for eco2 YCAS0425EB
Page 26: ...26 YORK INTERNATIONAL This page intentionally left blank Product Description ...
Page 49: ...49 YORK INTERNATIONAL FORM 201 18 NM8 This page intentionally left blank 7 ...
Page 60: ...60 YORK INTERNATIONAL FIG 20 CONTINUED ELEMENTARY DIAGRAM Technical Data ...
Page 65: ...65 YORK INTERNATIONAL FORM 201 18 NM8 WIRING DIAGRAM WYE DELTA START LD03229 FIG 23 CONT D 7 ...
Page 66: ...66 YORK INTERNATIONAL FIG 23 CONTINUED ELEMENTARY DIAGRAM Technical Data ...
Page 68: ...68 YORK INTERNATIONAL FIG 24 POWER PANEL FRONT INSIDE VIEW WYE DELTA START Technical Data ...
Page 71: ...71 YORK INTERNATIONAL FORM 201 18 NM8 LD03282 LD03283 LD03284 FIG 27 DETAIL A 7 ...
Page 74: ...74 YORK INTERNATIONAL FIG 32 DETAIL B Technical Data LD03285 ...
Page 75: ...75 YORK INTERNATIONAL FORM 201 18 NM8 FIG 33 DETAIL C 7 3 4 5 6 7 8 5 6 3 4 7 8 9 10 LD06841 ...