Trane CVGF1000, Installation, Operation & Maintenance Manual

Page: 114 / 128

point, all air must be removed from the system (including each pass). Then close
the vents in the condenser water boxes.
4. Open all of the valves in the evaporator chilled water circuit.
5. If the evaporator was previously drained, vent and fill the evaporator and chilled
water circuit. When all air is removed from the system (including each pass), close
the vent valves in the evaporator water boxes.
6. Lubricate the external vane control linkage as needed.
7. Check the adjustment and operation of each safety and operating control.
8. Complete all control settings.
9. Ensure water flows in the condenser and evaporator are correct according to the
pre-commissioning procedures.
10. Close all disconnect switches.
11. Ensure the unit has been charged with the correct amount of refrigerant and oil
and that the oil is the proper operating temperature.
12. Complete a phase rotation test if the voltage is less than 600 volts.
13. Perform instructions listed in “Unit Start-up” section
WARNING
Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it may be
necessary to work with live electrical components. Have a qualified licensed electri-
cian or other individual who has been properly trained in handling live electrical com-
ponents performs these tasks. Failure to follow all electrical safety precautions when
exposed to live electrical components could result in death or serious injury.
CAUTION
Refrigerant Loss May Occur:
To avoid excessive unit refrigerant pressure above the relief valve setting, follow these
recommended procedures:
•
Do not run the pump for more than 30 minutes after chiller shut¬down. Failure
to avoid excessive operation of the evaporator water pump with Chiller off may
cause loss of refrigerant charge.
•
If the chilled water loop is used for heating.
•
Ensure that the evaporator is isolated from the hot water loop before changing
over to the heating mode.
Unit Shutdown Unit Shutdown Procedures
Daily Unit Shutdown
N ote: Refer to Start-Run Shutdown sequence (Figure 10).
1. Press <STOP>.
2. After compressor and water pumps shutdown turn Pump Contactors to OFF or
open pump disconnects.
CVGF-SVX03B-EN
114
Unit Startup