Materials in the System
Refrigerant
R744
R-744 is odourless, heavier than air and is an asphyxiate. The refrigerant concentration
limit of R-744 is lower than HFCs because of its potential for high toxicity
The table below summarises the effect of CO2 at various concentrations in air.
PPM of R744
Effect
400
Concentration in atmosphere
5,000
Long-term exposure limit (8 hours)
15,000
Short-term exposure limit (10 min)
30,000
Discomfort, breathing difficulties, headache, dizziness, etc
100,000
Loss of consciousness, death
300,000
Quick death
Please refer to the material safety datasheet provided for R744 for additional
information
Lubricant Oil
Oil type used in these Condensing units is Daphne PZ68S (Idemitsu PAG)
Please refer to the material safety datasheet provided for the above oils for additional
information
Page 26 of 172
Copyright HPL March 2021
P4114S Rev 03
Содержание Hubbard GCU2040PXB1
Страница 4: ...Page 4 of 172 Copyright HPL March 2021 P4114S Rev 03...
Страница 44: ...4 Wiring Schematics Model GCU2040PXB1 Part Number D4155S Page 44 of 172 Copyright HPL March 2021 P4114S Rev 03...
Страница 49: ...6 Carel PR300T CO2 Controller manual Page 49 of 172 Copyright HPL March 2021 P4114S Rev 03...
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Страница 161: ...8 PRESSURE ENTHALPY DIAGRAM FOR R744 REFRIGERANT Page 161 of 172 Copyright HPL March 2021 P4114S Rev 03...
Страница 165: ...9 Commissioning Form Page 165 of 172 Copyright HPL March 2021 P4114S Rev 03...