CO₂ Compound System in Modular Design

Designed for larger capacities, for example in food retail, industry or logistics.

Installation through
standard door dimensions

Performance range
from

20…200kW*

10…120kW*

Technical data

Frame size	2 x 2	3 x 3	4 x 4	5 x 4	6 x 4
Number of MT compressors	2	3	4	5	6
Number of LT compressors	max. 2	max. 3	max. 4	max. 4	max. 4
Length in mm **	2,880	3,330	4,090	4,540	4,990
Width in mm	800	800	800	800	800
Height in mm ***	1,960	1,960	1,960	1,960	1,960

* Performance calculation based on evaporation temperatures:
–8 °C MT, –30 °C LT and 37 °C gas cooler outlet temperature

** incl. control cabinet

***without pipe outlets

2 to 6 MT compressors (transcritical) and up to 4 LT compressors (subcritical)
Capacity control for the MT lead compressor
Active oil management
Receiver (83 to 285 l) with minimum level indicator
Flash gas heat exchanger
LT suction gas superheater
Mechanical filters in oil line, before the HP valve, in liquid line and in LT suction line
Filter dryer in the MT suction line
Service and shut-off valves on all service-relevant components and pipe sections
Pressure gauges for each pressure stage
Pressure and temperature sensors matched to the desired control system brand
High-end insulation executed in Armacell AF
All pipe outlets (CuFe₂P) are routed upwards.
Safety valves mounted on valve panel, loose for on-site installation
Fully welded heavy-duty frame incl. vibration dampers

Capacity control
- MT lead compressor: Standard or pulse width modulated
- MT lag compressor: capacity control 50/100%
- LT lead compressor: frequency inverter
Heat recovery with 3-way valve, ball valves and insulation of discharge line, oil separator and heat exchanger, optional gas cooler bypass
Redundant HP and MP valves
Standstill cooling, R290
Bypass of the filter dryer in MT suction line
Mounted LT desuperheater or external LT desuperheater with 3-way valve and muffler
Liquid ejector incl. liquid separator
Active liquid subcooling
MT and LT hot gas injection
MT liquid injection
Low pressure switch
Pre-wiring
Control cabinet, mounted or loose
Air spring elements
Housing for indoor and outdoor installation