FBD 77 Series User manual

77X SERIES
INSTALLATION &
OPERATION MANUAL
771/772/773/774
24-77XM-0001_01
MODELS

This manual is for general informational purposes only and is not intended to cover every potential installation or operational
possibility. The parts and equipment addressed herein are warranted only to the extent covered by FBD’s Parts and Equipment
Warranty. FBD makes no express warranties as to any matter whatsoever and hereby disclaims all implied warranties including,
without limitation, the implied warranties of merchantability and fitness for any particular purpose. In no event shall FBD be liable
or obligated to any customer or to any third party for incidental, consequential, or special damages, regardless of the theory of
liability, arising out of, or in any manner related to FBD parts, equipment or any delay with respect to its delivery.
The information contained in this document is subject to change without notice.
© 2020 FBD Partnership, L.P. All Rights Reserved.

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TABLE OF CONTENTS
1. SAFETY .................................................................................................................................... 3
1.1 ELECTRICAL........................................................................................................................3
1.2 COMPRESSED GASES ........................................................................................................3
1.3 GENERAL PRECAUTIONS....................................................................................................3
2. SPECIFICATIONS AND REQUIREMENTS................................................................................. 4
2.1 GENERAL REQUIREMENTS.................................................................................................4
2.2 ELECTRICAL REQUIREMENTS.............................................................................................4
2.3 DIMENSION AND WEIGHT SPECIFICATIONS.......................................................................5
3. RECEIVING AND UNPACKING DISPENSER ............................................................................. 6
3.1 RECEIVING..........................................................................................................................6
3.2 UNPACKING .......................................................................................................................6
4. INSTALLATION ........................................................................................................................ 6
4.1 GENERAL LOCATION REQUIREMENTS ...............................................................................6
4.2 DISPENSER MOUNTING .....................................................................................................6
4.3 INSTALLATION FOR EASIER SERVICE .................................................................................7
4.4 SELF-CONTAINED REFRIGERATION MODELS .....................................................................8
4.5 REMOTE-CONDENSING MODELS........................................................................................8
4.6 WATER-CONDENSING MODELS..........................................................................................8
4.7 UNIVERSAL GAS CONFIGURATIONS...................................................................................8
4.8 CONNECTING TO ELECTRICAL POWER...............................................................................9
4.9 SUPPLY CONNECTIONS....................................................................................................10
4.10 CONNECTING TO WATER SUPPLY ..................................................................................11
4.11 CONNECTING TO GAS SUPPLY .......................................................................................11
4.12 CONNECTING TO SYRUP SUPPLY...................................................................................11
5. STARTING UP THE DISPENSER ............................................................................................ 12
5.1 LEAK CHECK AND PRIME .................................................................................................12
5.2 INITIAL POWER UP ...........................................................................................................13
5.3 WATER FLOW RATE AND BRIX..........................................................................................14
5.4 FILLING BARREL AND STARTING .....................................................................................15
6. DISPENSER OPERATION ....................................................................................................... 16
6.1 FREEZE.............................................................................................................................16
6.2 OFF...................................................................................................................................16
6.3 DEFROST ..........................................................................................................................16
6.4 DRINK QUALITY ................................................................................................................16
6.4.1 DRINK TOO “FIRM” OR COLD ..................................................................................17
6.4.2 DRINK TOO “SLOPPY” OR WARM ............................................................................17
6.4.3 DRINK TOO HEAVY ..................................................................................................17
6.4.4 DRINK TOO LIGHT ...................................................................................................17
7. MENUS AND NAVIGATION .................................................................................................... 18
7.1 KEYPAD ............................................................................................................................18
7.2 HOME MENU ....................................................................................................................19
7.3 POP-UP MENU..................................................................................................................19
7.4 MENU TREE......................................................................................................................20
7.5 MAIN MENU .....................................................................................................................21
7.6 READOUTS MENU ............................................................................................................21
7.7 FAULT CODE HISTORY MENU...........................................................................................22
7.8 SERVICE MENU.................................................................................................................22
7.9 MAINTENANCE MENU......................................................................................................23

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TABLE OF CONTENTS (CONTINUED)
7.10 SETTINGS MENU ............................................................................................................ 25
7.11 CLOCK AND SCHEDULE MENU....................................................................................... 28
7.12 DATE AND TIME MENU................................................................................................... 28
7.13 DEFROST SCHEDULE MENU........................................................................................... 29
7.14 AUTO DEFROST MENU ................................................................................................... 29
7.15 WAKE/SLEEP SCHEDULE MENU ..................................................................................... 30
7.16 MANUAL ON/OFF MENU ................................................................................................ 30
7.17 BEVTRAKTM MENU .......................................................................................................... 31
7.18 MODEM SETTINGS MENU............................................................................................... 31
7.19 MACHINE TOTALS MENU ............................................................................................... 32
7.20 RESTORE FACTORY SETTINGS MENU ............................................................................ 32
7.21 DIAGNOSTICS MENU ...................................................................................................... 33
8. CLEANING AND SANITIZING ................................................................................................. 34
8.1 GENERAL INFORMATION.................................................................................................. 34
8.2 DAILY CLEANING .............................................................................................................. 34
8.3 SANITIZING....................................................................................................................... 34
9. PREVENTIVE MAINTENANCE................................................................................................ 36
9.1 AIR FILTER CLEANING ...................................................................................................... 36
9.2 REAR SEAL REPLACEMENT .............................................................................................. 37
9.3 BACKFLOW PREVENTER MAINTENANCE ......................................................................... 38
9.4 SERVICING THE PRODUCT TRAY ...................................................................................... 38
10. TROUBLESHOOTING ........................................................................................................... 39
10.1 HOME MENU MESSAGES................................................................................................ 39
10.2 FAULT CODES................................................................................................................. 41
10.3 DIAGNOSTIC FAULT CODES............................................................................................ 48
11. DIAGRAMS AND SCHEMATICS ........................................................................................... 51
11.1 MOUNTING TEMPLATES................................................................................................. 51
11.2 FLOW DIAGRAMS (MULTI-FLAVOR DISPENSERS)........................................................... 54
11.3 FLOW DIAGRAMS (STANDARD DISPENSERS)................................................................. 56
11.4 ELECTRICAL WIRING DIAGRAMS (MULTI-FLAVOR DISPENSERS) ................................... 57
11.5 ELECTRICAL WIRING DIAGRAMS (STANDARD DISPENSERS) ......................................... 60
11.6 REFRIGERATION SCHEMATIC DIAGRAMS (MULTI-FLAVOR DISPENSERS) ..................... 63
11.7 REFRIGERATION SCHEMATIC DIAGRAMS (AIR-COOLED DISPENSERS).......................... 65
11.8 REFRIGERATION SCHEMATIC DIAGRAMS (REMOTE CONDENSING DISPENSERS)......... 67
11.9 REFRIGERATION SCHEMATIC DIAGRAMS (WATER-COOLED DISPENSERS).................... 68

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1. SAFETY
1.1 Electrical
This dispenser must be properly electrically grounded to avoid possible fatal electrical shock or serious injury to the
operator. The power cord is provided with a three-prong grounded plug. If a three-hole grounded electrical outlet is not
available, use an approved method to ground the dispenser. Only qualified electricians should perform this task and the
work performed should meet all applicable codes.
The plug must be accessible at all times so that the dispenser can be shut o in case of emergency. Always disconnect
electrical power to the dispenser to prevent personal injury before attempting any internal maintenance. Only qualified
personnel should service internal components or electrical wiring.
1.2 Compressed Gases
Strict attention must be observed in the prevention of gas leaks in the entire gas and frozen drink system. If a gas leak is
suspected, immediately ventilate the contaminated area before attempting to repair the leak as prolonged exposure to high
concentrations of carbon dioxide (CO) or nitrogen (N) could lead to death. Personnel exposed to high concentrations of
CO gas may experience dizziness, asphyxiation, confusion, fatigue, headaches, and/or tremors which are followed rapidly
by loss of consciousness and suocation. Personnel exposed to high concentrations of N gas may experience dizziness,
drowsiness, nausea, vomiting, diminished mental alertness, and/or loss of consciousness.
All applicable laws and regulations pertaining to the use, storage, and transport of gas cylinders must be observed. To
avoid personal injury and/or property damage, always secure gas cylinders in an upright position with a safety chain. A gas
cylinder with a damaged or detached valve can cause serious personal injury.
When using compressed air for the active charge system, all air compressor equipment must be operated only by authorized
and trained personnel. The air intake should be from a clean, outside, fresh air source. If local laws and regulations
require it, screens or filters to clean the air should be used based on equipment manufacturer’s recommendations. Air
compressors should never be operated at speeds faster than the manufacturer’s recommendation and equipment should
not be allowed to become overheated.
1.3 General Precautions
This equipment, depending on the model, weighs up to 418 pounds (190 kilograms) when empty and is top-heavy. To
avoid personal injury or equipment damage, do not attempt to lift the dispenser without help. The use of a mechanical lift
is highly recommended. When lifting and positioning the dispenser, it should always stay in a vertical upright position.

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2. SPECIFICATIONS AND REQUIREMENTS
2.1 General Requirements
†12” (304 mm) with side or back open-air conditions, 36” (914 mm) in equipment alcove.
2.2 Electrical Requirements
* All pressure values are listed in the manual in PSIG (kPag). However, the pressure readouts will be shown as “PSI” or
“kPa” on the dispenser display depending on the setting selected for “DISPLAY UNITS” (see Section 7.10).
Requirement
Syrup Supply Pressure 70 - 72 PSIG* (483 - 496 kPag)
Water Supply Pressure 30 PSIG (207 kPag) Minimum Flowing Pressure
70 PSIG (483 kPag) Maximum Static Pressure
Gas Supply Pressure 70 - 72 PSIG (483 - 496 kPag)
Clearance 3” (76 mm) Sides and Back,
12”-36” (304 mm - 914 mm) Top†
Refrigerant R404A
Requirement
Frequency 60 Hz
Operational Voltage 230 VAC ± 10%
Current
771 MFLV 20 A
772 20 A
772 MFLV 20 A
773 30 A
774 30 A

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2.3 Dimension and Weight Specifications
Multi-Flavor Dispensers
Standard Dispensers
Specication 771 MFLV 772 MFLV
Width 17.0” (432 mm) 17.0” (432 mm)
Depth 32.5” (826 mm) 32.5” (826 mm)
Height - Short Door 34.0” (864 mm) 34.0”(864 mm)
Height - Tall Door 41.3” (1,049 mm) 41.3” (1,049 mm)
Weight - Empty 288 lb (131 kg) 310 lb (141 kg)
Weight - Operational 295 lb (134 kg) 333 lb (151 kg)
Weight - Shipping 304 lb (138 kg) 346 lb (157 kg)
Specication 772 773 774
Width 17.0” (432 mm) 20.3” (516 mm) 26.0” (660 mm)
Depth 32.5” (826 mm) 32.5” (826 mm) 32.5” (826 mm)
Height - Short Door 34.0” (864 mm) 34.0” (864 mm) 34.0” (864 mm)
Height - Tall Door 41.4” (1,052 mm) 41.4” (1,052 mm) 41.4” (1,052 mm)
Air-Cooled Dispensers
Weight - Empty 298 lb (135 kg) 359 lb (163 kg) 418 lb (190 kg)
Weight - Operational 321 lb (146 kg) 393 lb (178 kg) 464 lb (211 kg)
Weight - Shipping 338 lb (153 kg) 404 lb (183 kg) 468 lb (212 kg)
Remote Condensing Dispensers
Weight - Empty 283 lb (128 kg) 343 lb (156 kg) 400 lb (182 kg)
Weight - Operational 306 lb (139 kg) 377 lb (171 kg) 446 lb (202 kg)
Weight - Shipping 323 lb (147 kg) 388 lb (176 kg) 450 lb (204 kg)
Water-Cooled Dispensers
Weight - Empty 295 lb (134 kg) 356 lb (162 kg) 415 lb (188 kg)
Weight - Operational 318 lb (144 kg) 390 lb (177 kg) 461 lb (209 kg)
Weight - Shipping 335 lb (152 kg) 401 lb (182 kg) 465 lb (211 kg)

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3. RECEIVING AND UNPACKING DISPENSER
3.1 Receiving
Each dispenser is tested and thoroughly inspected before shipment. At the time of shipment, the carrier accepts the
dispenser and any claim for damages must be made with the carrier. Upon receiving the dispenser from the delivering
carrier, carefully inspect carton for visible indication of damage. If damage is present, have carrier note same on bill of
lading and file a claim with the carrier.
3.2 Unpacking
A. Cut banding from shipping carton and remove carton by lifting up. Remove protective side panels and four
corner protectors.
B. If included, remove drip tray assembly and accessory kit from top packaging. Contact the dealer if any
parts are missing or damaged.
C. Remove side panels from dispenser.
D. Inspect dispenser for concealed damage. If evident, immediately notify delivering carrier and file a claim
against same.
E. If dispenser is received with a shipping board attached to the bottom, remove shipping board from bottom
of dispenser by accessing and removing the bolts located on the under side of the shipping board.
F. Lift dispenser up by the frame cross bracing and remove lower portion of carton.
4. INSTALLATION
4.1 General Location Requirements
Dispenser is intended for indoor use only. A flat, level location is required for proper installation. When using a counter,
ensure it will support the weight of the dispenser plus the weight of any equipment placed near it. See the specifications
section for equipment weights.
Adequate space above and behind the dispenser is required to allow:
1. Removal of side panels, if service is necessary.
2. Air circulation around vents on sides, back, and top of dispenser.
A well-ventilated room is required for the dispenser. The environment, however, should be stable and not subject to abrupt
changes in temperature. The dispenser should not be exposed to direct sunlight or chemicals.
4.2 Dispenser Mounting
Countertop - Flush Mounting: The most common installation is placing the dispenser directly on a countertop. If
permanently mounting to the countertop, the dispenser should be bolted down and a thin bead of silicone sealant should
be applied around the base of the frame. Remove the side panels before applying sealant and refer to the information in
Section 11.1 “Diagrams and Schematics” for the specific mounting dimensions by model.

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Figure 4.1 Product Tray Pushed In
Space must be provided for the extra tubing to be coiled up
behind the dispenser. Take care that it does not get pinched
or kinked.
Figure 4.2 Product Tray Partially Pulled Out
Straight fittings allow the tubing to remain connected while
working on the tray.
Countertop - Leg Mounting: Another countertop option is to install 4” support legs (sold separately) to allow for
easy cleaning around and under the dispenser. The legs install easily into the same four holes used to bolt the frame
to the shipping pallet. As an added benefit, this installation typically meets state and local health department codes.
Base Cart: A roll-around base cart (sold separately) can be used when a suitable countertop location is not available.
Dispensers installed to base carts must be bolted to the cart to avoid the dispenser from falling o which could result in
serious injury or death. Once installed, seal the dispenser to the cart using a bead of clear silicone caulk around the base
of the frame.
4.3 Installation for Easier Service
The 77x series of dispensers have a removable product tray to help with servicing the dispenser. The tray may be either
completely removed (for access to back components) or it can partially slide out (for access to front components) as
shown in Figure 4.2. The dispenser must be properly installed to take advantage of these features.
Use the straight fittings found in standard FBD dispenser install kits (sold separately) when connecting the water, CO or
N gas, and syrup lines to the dispenser.
Allow for an extra 18 inches (46 cm) of tubing in the lines for standard dispensers, and 24 inches (61 cm) for multi-flavor
dispensers. This extra slack will be useful when the tray is later pulled out for service.

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4.4 Self-Contained Refrigeration Models
Adequate clearance around the dispenser is required for proper air flow. Failure to provide proper clearance will reduce
capacity and can damage the refrigeration system. See the specifications page for clearance requirements. Avoid
enclosed installations if possible; recirculated hot discharge air from the dispenser can impact performance or damage
the system. Such installations require supplemental ventilation such as a fan with a thermal switch to remove the hot
discharge air.
An ambient temperature of no more than 75°F (24°C) provides the optimal capacity. As the ambient temperature increases,
the dispenser capacity decreases. It is essential that the HVAC system be sized to handle the additional heat load from all
self-contained, air-cooled dispensers. If ambient heat is a concern, FBD recommends a remote-condensing dispenser.
4.5 Remote-Condensing Models
Remote-condensing models utilize a condenser assembly external to the building and are designed for ambient
temperatures from -10°F to 120°F (-23°C to 49°C). This configuration removes the heat and fan noise from the inside
environment and reduces the air conditioning load during the warm season. Because air flow is not a high concern with
this set up, this style dispenser is suitable for enclosed spaces and zero side clearance installations (dispensers side-by-
side). Remote condensing models utilize a small air recirculation fan to assist in drying out any internal condensation. This
fan is located on the top of the dispenser and runs continuously. If your dispenser has an opening on the top panel for the
fan, do not stack objects on top of the dispenser as this will block the airflow and damage the fan.
4.6 Water-Condensing Models
Water-condensing models have specific water flow rate and temperature requirements. The minimum required volumetric
flow rate is 3.5 gallons (13.2 L) per minute and the allowable water inlet temperatures should not exceed 75°F (24°C).
Water flow rates below the recommended amount or temperatures in excess of recommended temperature will cause
significantly degraded performance and possibly damage the dispenser. Water-condensing models utilize a small air
recirculation fan to assist in drying out any internal condensation. This fan is located on the top of the dispenser and runs
continuously. If your dispenser has an opening on the top panel for the fan, do not stack objects on top of the dispenser
as this will block the airflow and damage the fan.
4.7 Universal Gas Configurations
All 77x multi-flavor dispensers come with “universal gas” options. The “universal gas” options provide multi-gas, multi-
drink functionality which allow for additional flexibility in configuration of the dispenser. For the 771 multi-flavor dispensers,
the universal option provides two gas connections - one which drives the pump and active charge system, and a second
which is injected into the product. For the 772 multi-flavor dispensers, three gas connections are provided - one for active
charge/pumps, one for injection into barrel 1 product, and one for injection into barrel 2 product.
The “Main Gas” connection which drives the water pump, active charge system, and pneumatic dispense valves can use
compressed air, CO, or N. The “Gas 1” and “Gas 2” (for 772 multi-flavor) can utilize COor Nfor injection into the
product.