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M-AP-001-EN Rev. N
General Specications
• 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. TG 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
5.1 Construction
5 General Specifications
* The TG230/TT300 compressors, the alarm and trip settings are default to lower values of operation which are
typcially deemed appropriate for Water-Cooled condiitons.
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.
Table 5-1 - Discharge
Pressure Alarm and Trip
Settings
Model kPa(g) PSIG kPa(g) PSIG
TG230ST* 1239 180 1299 188
TG230MT* 1116 162 1176 171
TG310 1240 180 1300 189
TG390 876 127 926 134
TG520 876 127 926 134
TT300ST* 1190 173 1240 180
TT300MT* 1190 173 1240 180
TT350 1730 251 1800 261
TT400 1190 173 1240 180
TT700 1190 173 1240 180
Alarm Trip
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.
5.2 Maximum Pressure