Highlights

• High operating pressures:
  • 2MTE-4 .. 6CTE-50 LP/HP 100/160 bar
  • 8FTE-100 .. 8CTE-140 LP/HP 80/150 bar
• Trusted piston and connecting-rod design
• Wide application range: transcritical and subcritical operation modes possible
• Low oil carry over rate

Product versions

• Motor version 1: MT and AC and parallel compressor operation
• Motor version 2: MT application

Capacity control for high full- and part load efficiency

• VARISTEP (mechatronic capacity regulation)
• Suitable for variable speed operation (VSD)
• VARIPACK (BITZERs inhouse frequency inverter)

IQ MODULE

• Protection
• Monitoring
• Diagnosis
• Operation (VARISTEP / Oil Level Management)
• Communication

Precise oil level management:

• Stepless measurement via float
• Simultaneous measurement and injection
• Reliable oil level measurement; smooth oil level after injection; no time delay for level reading
• High accuracy independent of foaming refrigerant
• No measurement errors due to contamination
• No measurement errors due to reflection or stray light

• Directly connected from the factory or as ADD ON
• Easy set-up via the IQ module
• Data-log and advanced alarm management
• Oil level monitoring in BEST and BDN

Application envelope monitoring

• Multistage alarm system
• High pressure warning and cut-out function (does not replace the high pressure safety switch)
• Low pressure cut-out function

High efficiency

• Low operating costs in full and part load

Flexibility

• Wide application range enables flexible use
• Widest capacity regulation range
  • 10–100% mechatronic capacity control
  • 50%/75%/100% mechatronic capacity control (8FTE, 8CTE)
  • Suitable for variable-speed drive with external frequency inverter
• Easy to operate via the IQ module
  • Precise oil management

Future-proof

• Long-life product for long-term solution
• Natural refrigerant CO₂

Safe and reliable operation

• Operation limits monitoring

Investment security

• Proven, reliable and efficient technology