Chapter 5.0 General Specifications
5.1 Construction
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Compressor - Semi-hermetic design
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Main Housing - Dimensionally-stabilized aluminum
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Covers - High-impact, UV stabilized, flame-resistant polymer (TGS series is identified by green cover)
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Shaft - High-strength alloy
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Impellers - High-strength aluminum
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Motor - Permanent magnet, synchronous, DC
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Bearings - Integrated, digitally-controlled, magnetic
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Compressor Control - Integrated, digital capacity control
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Enclosure - IP54 rating
5.2 Maximum Pressure
The maximum pressure that the compressor can operate is regulated directly by two control settings: (1) Alarm Limit
and (2) Fault Limit. It is also controlled by a Pressure Ratio alarm limit monitoring the ratio between the Discharge
and Suction Pressures.
Table 5-1 Discharge Pressure Alarm and Fault Settings
Model
Alarm
Fault
kPa(g)
PSIG
kPa(g)2
PSIG3
TGS230ST*
1239
180
1299
188
TGS230MT*
1116
162
1176
171
TGS310
1240
180
1300
189
TGS490
1240
180
1300
189
TGS390
876
127
926
134
TGS520
876
127
926
134
TGH285
1510
218
1586
229
TTS300ST*
1190
173
1240
180
TTS300MT*
1190
173
1240
180
TTS350
1730
251
1800
261
TTS400
1190
173
1240
180
TTS700
1190
173
1240
180
TTH375
2016
292
2116
306
* In the TGS230/TTS300 compressors, the alarm and fault settings default to lower values of operation, which are
typically deemed appropriate for Water-Cooled conditions. These values allow for adjustment for compressors
placed in Air-Cooled applications, which can have the value increased up to 1730 kPa(g)/250 PSIG for the Alarm and
1800 kPa(g)/260 PSIG for the Fault.
5.3 Maximum Discharge Temperature
The maximum temperature that the compressor can operate is regulated directly by the Fault Limit.
The Maximum Discharge Temperature Limits are defined in Table 5-2 Discharge Temperature Fault Settings.
M-AP-001-EN Rev. S-9/8/2021 Page 41 of 136
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