6
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Operation
Installer and user reference guide
31
LREN8~12A7 + LRNUN5A7
CO₂ ZEAS outdoor unit and capacity up unit
4P704142-1 – 2022.08
6 Operation
6.1 Operation modes
The system allows for only one operation mode: refrigeration.
6.2 Operation range
Use the system in the following temperature ranges for safe and effective
operation.
Temperature type
Temperature range
Outdoor temperature
(a)
–20~43°C DB
Evaporation temperature Low temperature
–40~–20°C DB
Medium temperature
–20~5°C DB
(a)
For low load restrictions, see
"13.5.1 Constraints for refrigeration"
6.3 Field piping pressure
Always keep the following field piping pressure in mind:
Piping
Field piping pressure
Gas
90 bar gauge
Liquid
90 bar gauge