Trane Starters Engineering Bulletin page 66

Starter Options
Enhanced Protection (EPRO)
The Enhanced Electrical Protection Package includes the EPRO package, which includes sensors
and transducers that enable the following chiller protection features:
Enhanced condenser-limit control.
interconnecting piping and wiring provides enhanced high-pressure cutout avoidance by
energizing a relay to initiate head relief.
Note: This protection is in addition to the standard high refrigerant-pressure safety contact.
Compressor-discharge refrigerant temperature protection.
safety cutout on high compressor-discharge temperature allowsTracer AdaptiView to monitor
compressor discharge temperature and display the temperature at the chiller controller and at
Tracer Summit™.
Bearing oil temperatures.
monitor the leaving bearing oil temperatures and display the temperatures at the chiller controller
and atTracer Summit.
The high bearing-temperature cutout is fixed at 180°F (82.2°C). If either bearing temperature
violates the cutout, a latching (manual reset) diagnostic is generated.
Enhanced Electrical Protection Package Options
In addition to the above standard elements, customers who purchase the Enhanced Electrical
Protection Package have additional options.These options can be applied to remote-mounted
medium-voltage starters, both fromTrane and from other starter manufacturers.
CPTR, Control-Power Transformer (Enhanced Electrical Protection Package option).
kVA control-power transformer mounted on the chiller (480 to 115 volts)
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SMP , Supplemental Motor Protection—Medium voltage only (Enhanced Electrical
Protection Package option).
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Other features:
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Flanged disconnect
Fused primary and secondary power
Secondary fuse status indictor (blown or not-blown)
UL 508Type 12 construction
Unit-mounted and factory-wired
Surge capacitors
Lightning arrestors
Zero-sequence ground fault
• UL 347 testedType 12 construction
• Field-accessible terminal block for trouble-shooting via panel
• Unit-mounted and factory-wired
Factory-installed condenser-pressure transducer with
Factory-installed sensors allow high-temperature safety cutouts to
A separate enclosure mounted to the motor includes:
Factory-installed sensor and
CTV-PRB004-EN
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