Before startarting the vacuum procedure it is necessary to open by hand the high pressure valve (HPV), see
section 11 above. Also you can refer to P&ID attached in this maunal. For this operation the magnetic tool shown
below needs to be used.
CAREL Product Reference & name: EEVMAG000 – Valve actuator
The operator can stop the vacuum procedure when the standing vacuum pressure (SVP) reaches 0.5 Torr.
13.4 Charging Refrigerant into the System
Initial charging should only be completed once the system has been proven to be leak free and after proper
vacuum. The charging point is located on the liquid line adjacent to the drier assembly. Liquid or gas should not be
added through the low pressure side of the system. Break vaccum with ONLY CO2 vapour (vapour off take
cylinder) up to 8 to 10 bar pressure. By using vapour CO2 up to that pressure you can avoid any dry-ice formation.
Make sure that compressor is off during this operation.
Maximum amount of refrigerant can be found in section 16.
Page 17 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...
Страница 144: ...Page 144 of 172 Copyright HPL March 2021 P4114S Rev 03...
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...