Steam Turbine; Gas Engine; Operating Procedures; Log Sheets - Carrier 17DA Start-Up, Operation And Maintenance Instructions Manual

Table 3B — Typical 17DA Cooler and Condenser Charges (R-134a) (Kg)
COOLER
4.6 M TUBES
SIZE
61 1362.0
63 1634.4
65 1634.4
67 1906.8
71 2088.4
73 2270.0
75 2542.4
81 2951.0
82 3495.8
83 3132.6
84 3722.8
85 3495.8
86 4630.8
87 3904.4
88 4994.0
90 5902.0
4. Location of isolation transformer, incoming switch gear.
5. Operation and servicing of the VFD Cooling system
(where applicable).
6. Interface with chiller control sequence.
7. Communication with chiller controls (hard wired, data
line)

STEAM TURBINE

1. Control interface with chiller controls
2. Turbine operation and maintenance training should be
done by the turbine manufacturer service representative.

GAS ENGINE

1. Control interface with chiller controls.
2. Engine operation and maintenance training should be
done by the engine manufacturer service representative.

OPERATING PROCEDURES

1. Starting and stopping of chiller including preparation of
turbine when applicable.
2. Valves that should be closed while machine is idle.
3. Move liquid refrigerant to storage tank for extended shut-
downs. Vapor pressure in the chiller should remain above
atmosphere to prevent air from entering and to allow peri-
odic leak checking.

LOG SHEETS

1. Information to be recorded and how often.
2. Spotting trends in the data for advanced warning of im-
pending service needs.

Operator Duties

1. Become familiar with the chiller and related equipment
before operating the chiller.
2. Prepare the system for start-up, start and stop the chiller,
and place the system in a shutdown condition.
3. Maintain a log of operating conditions and document any
abnormal readings.
4. Inspect the equipment and make routine adjustments.
Maintain the proper oil and refrigerant levels.
5. Protect the system from damage during shutdown
periods.
These are general instructions for
Start Machine —
17DA machines. Individual machines may vary in equipment
furnished. See Fig. 2 and 3.
5.5 M TUBES 6.7 M TUBES
1634.4 1997.6
1952.2 2406.2
1952.2 2406.2
2315.4 2814.8
2497.0 3087.2
2678.6 3314.2
2996.4 3677.4
3495.8 4313.0
4222.2 5130.2
3768.2 4630.8
4494.6 5538.8
4176.8 5130.2
5584.2 6900.8
4721.6 5720.4
6129.0 7491.0
7082.4 8716.8
CONDENSER
4.6 M TUBES
SIZE
61 908.0
63 908.0
65 1135.0
67 1135.0
71 1180.4
73 1180.4
75 1407.4
81 1589.0
83 1816.0
85 2088.4
87 2043.0
1. Energize controls. Investigate any alarm messages and
make appropriate corrections.
2. Check refrigerant level in cooler to be sure it is within op-
erating limits (at least 1/2 sight glass). If level appears
low, check the subcooler sight glass to see if missing re-
frigerant is in the subcooler. This refrigerant will redis-
tribute soon after machine starts.
3. Check oil levels for compressor, gear, drive, and other
auxiliary equipment.
4. Ensure that shutdown seal bleed valve (Fig. 3) is open.
5. Supply air to pneumatic controls. Check pressure and
cleanliness.
6. Start water pumps, if not controlled by the chiller.
7. Close shutdown seal bleed valve if it is a manual valve.
See Fig. 3. Valve must remain closed until the machine
has stopped and the shaft is at full stop.
8. Open isolation valves to refrigerant/oil separator.
9. If the chiller is a motor drive, press the START button and
then the machine will start.
10. If the chiller is a turbine drive, perform the following:
a. Push the START button on control panel. The
operator may now evacuate the surface condenser.
b. When the surface condenser is under vacuum, set
the governor for minimum speed. Open throttle
valve slowly and bring turbine up to minimum
speed. When the governor takes control, open the
throttle valve fully.
c. Run the turbine at minimum speed for the time
specified by the manufacturer. Adequate oil pres-
sure must be present on all drive components. If
adequate oil pressure is not seen, shut down
machine.
d. Bring the turbine to operating speed. The machine
controls will assume control of the turbine and
begin to load the chiller.
11. Listen for unusual sounds which may indicate malfunc-
tion. If heard, shut down immediately.
12. Adjust oil cooling water to supply 120 F (49 C) oil to ma-
chine bearings. Observe oil temperatures on compressor,
gear, and drive until they have leveled off satisfactorily.
13. Start thermal purge unit.
8
5.5 M TUBES 6.7 M TUBES
1089.6 1316.6
1089.6 1316.6
1362.0 1634.4
1362.0 1634.4
1407.4 1725.2
1407.4 1725.2
1679.8 2043.0
1861.4 2270.0
2133.8 2633.2
2451.6 3041.8
2406.2 2951.0