Replenishing Syrup Supply - Cornelius FCB 3 H.P. POST-MIX DISPENSER Installation & Service Manual

2. Disconnect electrical power from Unit.
3. Close CO cylinder and water inlet supply line shutoff valve.
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4. Remove lower front access panel and left-side panel as instructed for access to the water pump double
liquid check valve assembly.
5. Pull up on carbonator tank relief valve plastic cover to release CO
6. Disconnect carbonator tank water line from double liquid check valve assembly outlet.
7. Remove double liquid check valve assembly from elbow in water pump outlet port. Retain white tapered
gasket inside inlet (female) end of double liquid check valve.
8. Disassemble each check valve as shown in Figure 11.
9. Wipe each part with clean lint-free cloth. Inspect each part, especially ball for burrs, nicks, corrosion,
deterioration, and other damage. Discard ball seat and any damaged or suspicious parts and replace with
new parts during reassemble.
10. Reassemble liquid check valves as shown in Figure 11. ALWAYS INSTALL NEW BALL SEAT (QUAD
RING) P/N 312418000.
NOTE: Make sure when assembling check valves together, check valve female end with white tapered
gasket inside is on inlet side of double liquid check valve assembly.
11. Assemble check valves together. DO NO OVERTIGHTEN.
12. Make sure white tapered gasket is in place inside female end of double liquid check valve assembly, then
install check valve assembly on elbow in water pump outlet port.
13. Connect carbonator tank water line to double liquid check valve assembly outlet. DO NOT
OVERTIGHTEN.
14. Open CO cylinder and water inlet supply lines shutoff valves. Check for water leaks and tighten any loose
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connections.
15. Install Unit back panel by reversing removal procedure.
16. Connect electrical power to Unit.
17. Press both ''AUTO BLEND 1'' and ''AUTO BLEND 2'' switches.
18. Press both ''AUTO 1'' and ''AUTO 2'' switches to start freeze cylinders beaters and refrigeration system.

REPLENISHING SYRUP SUPPLY

NOTE: Sugar free diet syrup cannot be used with this Unit.
Although syrup replenishing can be done anytime, syrup supply must be replenished when either ''SYRUP 1'' or
''SYRUP 2'' fault messages are displayed on message display indicating either No. 1 or No. 2 syrup system soft
drink tank is empty.
NOTE: The following instructions are applicable only when replenishing syrup supply. Refer to SYRUP
FLAVOR CHANGE when changing syrup flavors.
1. Press applicable ''OFF 1'' or ''OFF 2'' switch to stop applicable freeze cylinder beater and refrigeration
system.
IMPORTANT: The following CO
replacement or filling soft drink tank in place must be performed in order as follows:
2. To disconnect soft drink tank from Unit syrup system.
A. Disconnect liquid disconnect from soft drink tank. NOTE - Disconnecting liquid quick
disconnect from soft drink tank first prevents syrup from backflowing through Unit syrup flow
regulator which may alter regulator adjustment.
B. Second, disconnect CO
and liquid disconnect and connecting procedure for soft drink tank
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quick disconnect from soft drink tank.
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pressure from tank.
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312026000