Johnson Controls YORK YLUA0078Z Series Installation Operation & Maintenance page 105

FORM 150.73-NM1
ISSUE DATE: 07/03/2024
Installation and Startup Checklist
Customer: ______________________________________
Address: _______________________________________
Phone: _________________________________________
Johnson Controls phone number:
___________________________
Chiller model number: ____________________________
The work, as checked below, is in process and will be completed by:
Complete the following work in accordance with in-
stallation instructions:
A. Unit checks, no power
Correct electrical lock out and tag proce-
dures must be followed.
Check the system before the initial start:
1. Inspect the unit for shipping or installation damage.
2. Ensure that all piping has been completed. ............
3. Visually check for refrigerant piping leaks. ..............
4. Open suction line ball valve, discharge line ball
valve, and liquid line valve for each system. ...........
5. The compressor oil level should be maintained so
that an oil level is visible or splashing in the sight
glass when fully loaded. At shutdown, the oil level
should be between the bottom and middle of the oil
equalizing sight glass. .............................................
6. Verify proper CFM of air across evaporator coil.
Verify air flow switch operation. ...............................
7. Check the control panel to ensure it is free of for-
eign material such as wires, metal chips, or tools. ..
8. Visually inspect wiring (power and control). Wiring
must meet N.E.C. and local codes. .........................
Johnson Controls
JOHNSON CONTROLS
Supersedes: 150.73-CL2 (1012)
Job name: ______________________________________
Location: _______________________________________
Customer order number: __________________________
Johnson Controls order number:
___________________________
Unit serial number: ______________________________
_____________ / ____________ /
9. Check the tightness of power wiring inside the pow-
er panel on both sides of the motor contactors and
overloads. ...............................................................
10. Check for correct size fuses in the main and control
circuits, and verify overload settings correspond
with RLA and FLA values in electrical tables. .........
11. Ensure 120 VAC Control Power to TB1 has
15 A minimum capacity. ..........................................
12. Be certain all water temperature sensors are in-
serted completely in their respective wells and are
coated with heat-conductive compound. .................
13. Ensure that the evaporator TXV bulbs are strapped
to the suction lines at 4 or 8 o'clock positions or to
suction temperature sensors, if EEVs are installed. ..
B. Compressor heaters
Power on, 24 h before start-up
1. Apply 120 VAC and verify its value between ter-
minals 5 and 2 of XTBC2. Ensure the voltage is
120 VAC ± 10%. ......................................................
2. Power must be applied 24 h before start-up. ..........
3. Ensure each heater draws approximately 0.5 A to
1 A. .............................................................................
SECTION 6: COMMISSIONING
Model YLUA
Form: 150.73-CL2 (1023)
Johnson Controls contract number:
_______________________________
___________
Month Day Year
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