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RT-SVX063G-EN
Figure 88. Pressure curve — 75 tons high efficiency
Discharge Pressure, PSIG
Suction Pressure, PSIG
200
250
300
350
400
450
500
90 100 110 120 130 140 150 160 170 180
95°F Ambient
85°F Ambient
75°F Ambient
65°F Ambient
105°F Ambient
75T High Efficiency
Note: Full load acceptable subcooling range: 13-23°F
Figure 89. Pressure curve — 75 tons eFlex variable speed
250
300
350
400
450
500
550
90 100 110 120 130 140 150 160 170 180
Discharge Pressure, PSIG
Suction Pressure, PSIG
105°F Ambient
95°F Ambient
85°F Ambient
75°F Ambient
65°F Ambient
75T eFlex Variable Speed - circuit 1 only
(Use 75T Standard Capacity for circuit 2)
Note: Full load acceptable subcooling range: 13-23°F
Compressor Oil
Refer to Table 69, p. 126 for the appropriate scroll
compressor oil charge. Remove and measure oil from any
compressor replaced. Adjust oil in replacement
compressor to prevent excessive oil in system. Anytime a
compressor is replaced, the oil for each compressor within
the manifold must be replaced.
The scroll compressor uses Trane OIL00079 (one quart
container) or OIL00080 (one gallon container) without
substitution. Discoloration of the oil indicates that an
abnormal condition has occurred. If the oil is dark and
smells burnt, it has overheated because of the following:
• Compressor operating at extremely high condensing
temperatures
• High superheat
• A compressor mechanical failure
• Occurrence of a motor burnout.
Service and Maintenance