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Operation
1. A thermometer (14) is in the oil line leaving the
thrust bearing (6).
2. A thermometer (15) is in the main oil line to the
filter(s) (3) and the bearings.
3. A thermometer (16) is in the oil reservoir (5).
On some series oil flow systems the
thrust oil pressure gauge (17) and the
bearing oil pressure gauge (18) may
not be installed at the equipment. They
may be installed at a remote location.
To facilitate checking the pressures within the lubrica-
tion system pressure indicators (17, 18, and 19) are lo-
cated as follows:
1. The thrust oil pressure gauge (17) is in the oil line
leaving the thrust bearing (6).
2. The bearing oil pressure gauge (18) is in the main
oil pump supply line from the oil filter(s) (3).
3. The compressor balance piston pressure indicator
(19) indicates pressure within the balance piston
chamber.
STARTING THE COMPRESSOR
The following paragraphs describe the procedures for
starting and operating a Turbomaster Compressor.
1. Before starting the compressor, perform the fol-
lowing steps:
A. If the compressor is turbine driven, warm up the
turbine in accordance with the manufacturer's
instructions.
B. Check the compressor oil level; it should be main-
tained at about 1/4" above the bottom of the up-
per sight glass during operation or at normal start-
up mark for a rectangular reflex type of glass.
The oil temperature should be at the specified
standby temperature or 150°F minimum.
C. Add new oil of the proper YORK designation, if
necessary (refer to Adding Oil to Compressor).
D. Start all system auxiliaries.
24
E. If the compressor is motor driven, be sure the
pre-rotation vanes are closed to unload the mo-
tor during starting. Some systems are equipped
with a safety switch which automatically pre-
vents the compressor motor from starting un-
less the vanes are closed. The starting require-
ments for a single shaft gas turbine are more
severe and a special start-up procedure is re-
quired. With a steam turbine or a split shaft gas
turbine, it is normally unnecessary to unload the
compressor during starting.
F. Open the water valves to the oil cooler. The
full design flow of water is required through
the oil cooler at all times during starting and
operation to inhibit foaming in the oil, espe-
cially with compressors handling oil soluble
gases, such as halocarbon refrigerants and
hydrocarbons.
G. If equipped, move the auxiliary oil pump switch
from OFF to AUTOMATIC (See THE AUX-
ILIARY OIL PUMP). This de-energizes the
reservoir oil heater (See THE RESERVOIR
OIL HEATER) and starts the pump, with most
compressor control arrangements. (Refer to the
wiring diagram and the application data sheet).
The auxiliary oil pump builds up sufficient oil
pressure to actuate the low oil pressure differ-
ential control, permitting the compressor driver
to start.
Some control arrangements automati-
cally start the compressor after a brief
delay. Refer to the wiring diagram and
the application data sheet.
2.
As soon as the low oil pressure differential control
has been satisfied start the compressor.
As the compressor comes up to speed,
the oil pressure built up by the main
oil pump will actuate the auxiliary oil
pump differential control and stop the
auxiliary oil pump.
FORM 220.11-NM2 (602)
YORK INTERNATIONAL
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