66 CTV-PRB004-EN
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. Factory-installed condenser-pressure transducer with
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. Factory-installed sensor and
safety cutout on high compressor-discharge temperature allows Tracer AdaptiView to monitor
compressor discharge temperature and display the temperature at the chiller controller and at
Tracer Summit™.
Bearing oil temperatures. Factory-installed sensor s allow high-temperature safety cutouts to
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). 4
kVA control-power transformer mounted on the chiller (480 to 115 volts)
• Flanged disconnect
• Fused primary and secondary power
• Secondary fuse status indictor (blown or not-blown)
• UL 508Type 12 construction
• Unit-mounted and factory-wired
SMP, Supplemental Motor Protection—Medium voltage only (Enhanced Electrical
Protection Package option). A separate enclosure mounted to the motor includes:
• Surge capacitors
• Lightning arrestors
• Zero-sequence ground fault
Other features:
• UL 347 tested Type 12 construction
• Field-accessible terminal block for trouble-shooting via panel
• Unit-mounted and factory-wired
CTV-PRB004.book Page 66 Sunday, December 18, 2011 6:39 PM
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