York YHAU-CL Series - Page 96

JOHNSON CONTROLS
96
FORM 155.30-ICOM2.EN.UL
ISSUE DATE: 12/21/2018
SECTION 5 - COMMISSIONING
JOHNSON CONTROLS
3
FORM 155.30-CL1.EN.UL
ISSUE DATE: 12/11/2018
F. Evacuate Nitrogen Charge
1. Remove plug in the purge line .................................
2. Release Nitrogen gas until the generator com-
pound gauge indicates approximately 0.005
MPa.G. (0.725 PSI). ................................................
3. Re-install plug in the purge line. ..............................
4. Navigate to the Control Panel Setting screen. .........
5. Press the purge Pump ON button. ...........................
6. Check the oil level in the purge pump. .....................
7. Using the vacuum pump, evacuate nitrogen gas
until the generator compound gauge indicates al-
most -0.1 MPa.G (-14.5 PSI). .................................
8. Close all open manual valves. .................................
9. Press the Purge Pump OFF button. .........................
10. Turn the power switch (MCB) off. .............................
11. Replace or add oil to the purge pump. .....................
G. Panel Checks
1. The thermal relays conform to the factory inspec-
tion sheet. ................................................................
2. The interlock and answerback signals for the fol-
lowing are available:
a. Chilled water pump. .............................................
b. Cooling water pump. ............................................
c. Hot water pump. ..................................................
3. The indicators on the Control Panel are correct. .....
4. The temperature setting parameter for capacity
control are correct. ...................................................
5. Date and time reflect the local time zone. ................
6. The rotation director is correct for the following:
a. Solution circulation pump. ...................................
b. Solution spray pump ............................................
c. Refrigerant pump .................................................
7. Water flow suspension switch works properly. ........
NOTES:
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