FBD 77 Series Installation & Operation Manual page 28

GAS CONFIGURATION:
• For standard dispensers with no multi-gas or multi-drink functionality (Figure 7.17) this is the gas (CO2
or NITROGEN as determined by dispenser configuration) that is used for operating the water pump, active
charge system, and the gas that will be injected into the barrels.
• For universal gas dispensers, each of the gas connections will need to be set up with the correct gas: MAIN
GAS, GAS #1, and GAS #2 (Figure 7.18). MAIN GAS is the gas that drives the water pump, active charge
system, and pneumatic faceplate and can use COMP AIR (compressed air), CO2, or NITROGEN. GAS #1
and GAS #2 (for 772 multi-flavor) is the gas that is injected into the product in the barrel(s) and can use
CO2 or NITROGEN. It is important that the correct gas be selected in order to set up the DRINK TYPE
CONFIGURATION (Figure 7.19) correctly.
If the gas connections are being combined using adapter sets (sold separately) into one gas, then the selected gas
needs to be the same for the gas connections being combined.
DRINK TYPE CONFIGURATION (Figure 7.20) - Once the gas type has been set under GAS CONFIGURATION, the
drink type will need to be configured for universal configurations. Since the type of drink available for any given
barrel is dependent on the gas that was selected for the barrel, it is very important to make sure the correct
gas is selected. The available drink types will also vary by dispenser configuration as shown in the Universal
Configuration Drink Types table.
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Figure 7.17
Figure 7.19
77X INSTALLATION & OPERATION MANUAL
771/772/773/774 MODELS
Universal Configuration Drink Types
Dispenser Available Drink Types
771 CO2: Medium Expansion and High Expansion
Multi-Flavor N2: Medium Expansion
CO2: Medium Expansion and High Expansion
772
Multi-Flavor
N2: Medium Expansion
Figure 7.18