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York YMC2 Manual
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Startup Checklist
Customer: ______________________________________
Address: _______________________________________
Phone: _________________________________________
JCI tel no: _______________________
Chiller model no: _______________________________
The work (as checked below) is in process and will be completed by:
The following work must be completed in accordance with the operation manual:
A. General
Review the Installation Checklist, Form 160.78-CL1, to
validate the attributes have been completed. Attach a
completed copy for records.
1. Water connection inlet and outlet are at proper
locations, have hangers nearby that support their
weight and show no visible strain on chiller nozzles
2. Relief piping is complete and puts no strain on the
relief valves ..............................................................
3. Verify the chiller is charged with refrigerant
Pressures match R-134a saturation for ambient
temperature ..............................................................
4. Verify the evaporator pressure transducer isolation
valve is open ............................................................
5. Verify the condenser pressure transducer isolation
valve is open ............................................................
6. Verify the discharge pressure transducer (stall
transducer) isolation valve is open ...........................
7. Verify the compressor discharge isolation valve is
open .........................................................................
8. Verify that the liquid line isolation valve is open .......
JOHNSON CONTROLS
Supersedes 160.78-CL2 (421)
Startup Checklist
Job name: ______________________________________
Location: _______________________________________
Customer order no: _______________________________
JCI order no: ______________________ JCI contract no: ___________________
Unit serial no: __________________________________
10. Verify the motor stator liquid cooling angle valve
11. Verify the motor stator liquid cooling strainer service
12. Verify the drive shipping antifreeze solution is
13. Verify that the motor electrical connections are
14. Check the chiller for refrigerant leaks at joints ..........
15. Ensure jumper installed on OptiView™ TB6 terminal
16. If the unit is equipped with SC-EQ, set up in
YMC
- Mod A
2
_____________ / ____________ /
Month
Day
9. Verify the hot gas bypass line isolation valve, if hot
gas is present, is open ..............................................
just above the shells, below the motor is open .........
capped ball valve above the motor is open ...............
drained and fill with inhibited water that shipped
with the chiller, as outlined in the 160.00-M12
manual ......................................................................
tightened per the label on the back wall of the
drive.......................... ................................................
24 to 25 .....................................................................
accordance with 450.50-N1 Section 2 .....................
Form 160.78-CL2 (1121)
___________
Year
1

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Summary of Contents for York YMC2

  • Page 1 - Mod A Supersedes 160.78-CL2 (421) Form 160.78-CL2 (1121) Startup Checklist Startup Checklist Customer: ______________________________________ Job name: ______________________________________ Address: _______________________________________ Location: _______________________________________ Phone: _________________________________________ Customer order no: _______________________________ JCI tel no: _______________________ JCI order no: ______________________ JCI contract no: ___________________ Chiller model no: _______________________________ Unit serial no: __________________________________ ___________...
  • Page 2 Form 160.78-CL2 Issue date: 11/01/2021 17. For chilled water pumps, check the following: c. Verify that the conduit plate was removed when the conduit holes were made....... a. Power is available..........b. Wiring is complete..........d. Ensure that no metal shavings are present on top of the circuit breaker, other electrical c.
  • Page 3: Johnson Controls

    Form 160.78-CL2 Issue date: 11/01/2021 C. Control panel 3. Setpoints: Setup: Schedule Log on at SERVICE level access to ensure access to the necessary setpoints. The setpoints are grouped by the screen in which they appear. Enter the as-left value in the Enable or Disable Scheduled Operation ..
  • Page 4 Form 160.78-CL2 Issue date: 11/01/2021 7. Setpoints: Setup: Sales Order 12. Condenser: Refrigerant Level Control: Setpoints Enter Commissioning Date Startup Position ........(record here)..........Compressor Model must be entered and must Startup Delay (ADMIN) ......be of the format M1B-xxxFAy, where (xxx) is 197 or 205 and (y) is either the ending A or ending B in the compressor model Ramp Time (ADMIN) ......
  • Page 5 Form 160.78-CL2 Issue date: 11/01/2021 15. Compressor: VGD: Setpoints Surge React Time ........Drive Output Gain (ADMIN) ....Surge Wait Time ........*PRV Output Gain (ADMIN) ....Probe Wait Time ........†VGD Output Gain (ADMIN)....Open Pulse ..........HGBP Output Gain (ADMIN) ....High Limit ..........
  • Page 6 Form 160.78-CL2 Issue date: 11/01/2021 18. Variable Speed Drive To set the maintenance run time counter for commission- ing to zero, press the Maintenance Acknowledge but- Input Job Full Load Amps ....... ton. You can use the Maintenance Acknowledge but- ton to scroll to each time-based counter and, using the Local Input Current Limit......
  • Page 7 Notes...
  • Page 8 5000 Renaissance Drive, New Freedom, Pennsylvania USA 17349 1-800-524-1330 Subject to change without notice. Printed in USA Copyright © by Johnson Controls 2021 www.johnsoncontrols.com ALL RIGHTS RESERVED Form 160.78-CL2 (1121) Issue Date: November 1, 2021 Supersedes: 160.78-CL2 (421)