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M-AP-001-EN Rev. Q
Chapter 5.0 General Specifications
5.1 Construction
• Compressor - Semi-hermetic design
• Main Housing - Dimensionally-stabilized aluminum
• Covers - High-impact, UV stabilized, flame-resistant polymer.
• Covers - High-impact, UV stabilized, flame- resistant polymer. TGS series is identified
by green cover.
• Shaft - High-strength alloy
• Impellers - High-strength aluminum
• Motor - Permanent magnet, synchronous, DC
• Bearings - Integrated, digitally-controlled, magnetic
• Compressor Control - Integrated, digital capacity control
• Enclosure - IP54 rating as per UL 984 requirement
• UL60335-2-34
5.2 Maximum Pressure
The maximum pressure that the compressor can operate is regulated directly by two control settings:
(1) Alarm Limit and (2) Trip 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 Trip Settings
* In the TGS230/TTS300 compressors, the alarm and trip 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 Trip.
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Model
Alarm
Trip
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
Содержание TGH Series
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