Danfoss Optyma iCO2 Instructions Manual page 20

Instructions
Fig. 23
Note on R744 (CO ) :
2
R744 (CO ) uses pressures higher than equipment based on Freon. Sufficient care must be taken when charging the gas.
2
Caution for work
1. Charge in liquid phase after breaking the vacuum at 7 or 10 bar.
2. Confirm that it is contained in a cylinder special to R744 (CO
3. Use the manifold valve and the charge hose special to R744 (CO
4. Show a warning sign board stating "High pressure gas charge" at a place where it can be seen by people. (When the charging place can be
approached from more than one place, show the board at respective places.)
5. Even when the charge pressure dropped in the cylinder, never heat the cylinder higher than 40°C for reason of security.
6. Do not lay flat the cylinder during charging.
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© Danfoss | Climate Solutions | 2023.02 | LCA012A024
Low
pressure side
service port
Middle
pressure side
service port