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M-AP-001-EN Rev. Q
5.3 Maximum Discharge Temperature
The maximum temperature that the compressor can operate is regulated directly by the Trip Limit.
The Maximum Discharge Temperature Limits are defined in "Table 5-2 Discharge Temperature Trip
Settings".
Table 5-2 Discharge Temperature Trip Settings
NOTE
While the values here are represented in Gauge Pressure, the values in the registers will be defined in Absolute Pressure. Refer
to the OEM Programming Guide to identify the specific registers associated with the Discharge Pressure Alarm and Discharge
Pressure Trip Limits.
The compressor will also adjust its operation if the pressure ratio exceeds the alarm limit. The Pressure
Ratio alarm limit is defined in "Table 5-3 Maximum Pressure Ratio Limits".
Table 5-3 Maximum Pressure Ratio Limits
*The TGS230/TTS300 compressor allows for adjustment of this setting.
Compressors which are placed in Air-Cooled applications can have this value increased up to 4.8.
NOTE
Pressure ratio must be calculated using absolute pressures. Refer to the OEM Programming Guide to identify the specific register
associated with the Pressure Ratio Alarm Limit.
Beyond these control limits, the Maximum Design High-Side Pressure for the compressor is shown in
"Table 5-4 Maximum Allowable Pressure [PS]".
Table 5-4 Maximum Allowable Pressure [PS]
Unit Compressor TGS230ST TGS230MT TGS310 TGS490 TGS390 TGS520 TGH285 TTS300ST TTS300MT TTS350 TTS400 TTS700 TTH375
°F Trip 212 194 203 203 194 194 212 212 194 203 194 194 212
°C Trip 100 90 95 95 90 90 100 100 90 95 90 90 100
Compressor TGS230ST* TGS230MT* TGS310 TGS490 TGS390 TGS520 TGH285 TTS300ST* TTS300MT* TTS350 TTS400 TTS700 TTH375
Alarm 4 4 5.2 5.2 3.5 3.5 6.3 4 4 5.2 3.5 3.5 6.3
Trip 5.2 5.2 5.5 5.5 4 4 6.5 5.2 5.2 5.5 4 4 6.5
Unit
ALL TTS & TGS
Compressors
TTH/TGH
Compressors
kPag 2070 2303
psig 300 334
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