Replacing The Pump Tubing; Replacing The Water Filter; Calibrating The Dispenser - Bunn LCA-1 Installation & Operating Manual

PREVENTIVE MAINTENANCE
Bunn-O-Matic Corporation recommends that preventive maintenance be performed at regular intervals. Maintenance
®
should be performed by a qualified service technician. For Technical Service, contact Bunn-O-Matic
1-800-286-6070.
NOTE: Replacement parts or service caused by failure to perform required maintenance is not covered by warranty.
Replace pump hoses every 6-Months or as needed.

REPLACING THE PUMP TUBING

The pumps and tubing used in the dispenser are designed to give maximum performance and long life. However, the
tubes are a wear item and must be replaced periodically. How long the tubes last is dependent on usage and properties of
the concentrate. Excessive wear will reduce the output of the pumps resulting in a weak mixed beverage. Bunn-O-Matic
recommends replacing the Pump Tubing a minimum of once every 6 months or sooner if warranted. Refer to the Tube
Replacement Instruction inside the Cabinet door.
REPLACING THE PUMP TUBING
Note: Rinse tubing with warm water (steps 1 - 4 of the Weekly Sanitizing Instructions) prior to removing to avoid spills.
1. Remove the BIB and product shelf to access the pump assembly.
2. Loosen thumbscrew (Fig 1) to remove the cover plate and set it aside.
3. Depress tension screw and remove it from notch in the pump body to release the tension on the pump band. (Fig 1)
4. Pull the pump tube from around pump rotor. (Fig 1)
5. Inspect pump bands for signs of wear and replace if necessary.
6. Apply lubricant (BUNN-O-MATIC part no. M2548.1000) to the middle section of the new pump tubing. (Fig 2)
7. Wrap the new pump tubing around the rotor, making sure the elbow is snug against the inlet of the pump.(Fig3)
8.Depress tension screw and insert it in notch in the pump body, reapplying spring tension on the pump band. (Fig 3)
9. Connect the pump tubing the port on the SST dispense tube. (Fig 3).
10.Replace the cover plate and tighten thumbscrew.
11.Route the BIB Adapter tube through the notch in the product shelf and re-install the shelf. (Fig 4)
12.Reconnect the BIB Adapter to the product BIB. (Fig 5)
Note: Replacement Tube Kits can be purchased from BUNN-O-MATIC. Order part no. 44713.1000
FIG 1 FIG 2
Remove Cover Lubricate
Release Tension New Tube
Remove Tubing
Kiss cut

REPLACING THE WATER FILTER:

Refer to the instructions supplied with the water filter kit for the recommended intervals and procedure for
replacing the filter cartridge.
Die cut
Corporation at
®
FIG 3 FIG 4 FIG 5
Install Tubing Route Tubing Completed
Reset Tension Replace Shelf Installation
Replace Cover Connect BIB
Prime Run
Normal Night
Rinse Prgm
44710.0000A 03/11 © 2011 Bunn-O-Matic Corporation
16
DIR Num: 44806.0001

CALIBRATING THE DISPENSER

NOTE: The LCA-1 is calibrated at the factory and does not normally need to be re-calibrated. Open the dispenser
door to access the digital Programming Switches with LED display. To enter the Calibration Mode, Set the RUN/
NIGHT/PROGRAM Switch to the PROGRAM position and then hold both Up and Down Arrow switches until "1
r u n" appears of the display, (approx 15 sec).
LED DISPLAY
1 r u n
MENU
1
MENU
2 r u n
MENU
2
MENU
3
MENU
4 E n g
MENU
5 E _ _
MENU
44806.1 020112
08, October 2014
CALIBRATION MODE
Pump Cal. Procedure
(-) (+)
2 2
Pump Cal. #
(-) (+)
Water Flow Rate
(-) (+)
7 6 0 Water Flow Rate
(-) (+)
Not used in the LCA-1
(-) (+)
English or Metric Mode
(-) (+)
Error Code Memory
(-) (+)
17
RELEASED FOR PRODUCTION
DESCRIPTION
Set PRIME-NORMAL-RINSE switch
to PRIME position. Place Graduated
Cylinder under dispense tip. Press and
hold Dispense Switch until pump stops
(20 sec) Refer to Calibration Procedure.
Enter mL collected from the 20 sec.
test above.
Default = 22
Range = 18 - 26mL
Set PRIME-NORMAL-RINSE switch
to RINSE position. Place Graduated
Cylinder under dispense tip. Press and
hold Dispense Switch until pump stops
(20 sec) Refer to Calibration Procedure.
Enter mL collected from the 20 sec.
test above.
Default = 760
Range = 780 - 820 mLiters
Used to select the desired units.
Default = English
S.I. for Metric
Display cycles through the last (3)
Error Codes.
Erase by holding the Decrease (-)
switches for 10 sec.
Currently have to hold (+) & (-)
44806.1 020112