FBD 772 - Regulated Gas Pressure Faults; Gas #1 CO2 Pressure Errors; Gas #1 N2 Pressure Errors; Gas #2 CO2 Pressure Errors

77X INSTALLATION & OPERATION MANUAL
771/772/773/774 MODELS
47
Error #430: Gas #2 - CO Out
The CO pressure is less than 45 PSIG (310 kPag) for barrel 2.
Error #440: Gas #1 - Low Regulated CO PSI
The regulated CO pressure dropped below 50 PSIG (345 kPag) for barrel 1.
Error #450: Gas #1 - High Regulated CO PSI
The regulated CO pressure is above 70 PSIG (483 kPag) for barrel 1.
Error #460: Gas #1 - Low Regulated N PSI
The regulated N pressure dropped below 50 PSIG (345 kPag) for barrel 1.
Error #470: Gas #1 - High Regulated N PSI
The regulated N pressure is above 70 PSIG (483 kPag) for barrel 1.
Error #480: Gas #2 - Low Regulated CO PSI
The regulated CO pressure dropped below 50 PSIG (345 kPag) for barrel 2.
Error #490: Gas #2 - High Regulated CO PSI
The regulated CO pressure is above 70 PSIG (483 kPag) for barrel 2.
Error #1000: Gas #2 - Low Regulated N PSI
The regulated N pressure dropped below 50 PSIG (345 kPag) for barrel 2.
Error #1010: Gas #2 - High Regulated N PSI
The regulated N pressure is above 70 PSIG (483 kPag) for barrel 2.
1 Check the “Gas 1” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1 Ensure the N supply is not low.
2 Check the “Gas 1” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1 Check the “Gas 1” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1 Ensure the CO supply is not low.
2 Check the “Gas 2” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1 Check the “Gas 2” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1 Ensure the N supply is not low.
2 Check the “Gas 2” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1 Check the “Gas 2” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1 Ensure the CO supply is not low.
2 Check the “Gas 1” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1 Replace or refill the CO tank.
2 Ensure the CO shuto valve at the back of the dispenser is not turned o.
3 Ensure the CO pressure transducer is connected and working properly.
4
Ensure the CO supply pressure at the dispenser is reading 70 PSIG (483 kPag). Adjust the regulator
if needed.