Newco LC-D Installation Manual

INSTALLATION AND OPERATION INSTRUCTIONS

LC-D SERIES COFFEE CONCENTRATE BREWER

WITH DIGITAL ELECTRONIC CONTROL CENTER

PLUMBER'S INSTALLATION INSTRUCTIONS

107353 1-00

CAUTION:

Water pipe connections and fixtures directly connected to a potable water supply shall be sized, installed and maintained
in accordance with Federal, State and Local codes.

1) Flush water line before installing brewer.

2) Water pressure should be at least 20 psi. For less than a 25 ft run, use 1/4" copper tubing and connect to 1/2" or
larger water line. For longer runs, use 3/8" copper tubing & connect to 1/2" or larger water line and provide an adapter
fitting for connection to the brewer.

3) If installed with saddle valve, the valve should have a minimum of 1/8" port hole for up to 25 ft run, and 5/16" port
hole for over 25 ft runs.

4) For applications without a filter. Connect the incoming water line to the fitting on back of brewer.

5) For applications with a filter. Flush the filter cartridge per the manufacturer recommendations. Attach the cartridge
replacement instructions to this manual for future reference. Attach the filter assembly to the rear of brewer using 8-32
screws and mounting holes provided. Use the copper tube provided to connect the filter to the solenoid inlet fitting which
protrudes from the rear of the unit. The fittings on the filter feature a simple push in connection.

6) For applications with a filter. Shutoff valve on filter should be in the off position. Connect the incoming water line to
the fitting extending from the shutoff valve. With power to brewer shutoff and water supply turned on slowly open shutoff
valve to allow system to fill with water. Depress the pressure relief button on the filter to release trapped air. Check for
leaks. Turn shutoff valve on filter to the off position for initial setup outlined below.

Power to brewer must be OFF before proceeding with plumbing installation.

INITIAL SETUP INSTRUCTIONS
WARNING:

void if machine is connected to any voltage other than that specified on the name plate. Initial setup should be done by
qualified personnel only.

SETUP SUMMARY

1) Plumb unit in (previous section). Water should be turned off.

2) Turn unit power switch off. Connect to electrical supply.

3) Load beverage concentrate.

4) Prime pumps. Set ratio and temperature.

5) Turn on water. Let tank fill.

6) Allow to heat. Ready!
OVERVIEW

Located behind the front access door is a digital electronic control panel that controls all dispensing unit functions.
This includes tank water level and fill valve operation, regulation of water tank temperature, pump operation, and
monitoring of pressure switches during normal operation.

- Read and follow instructions before plugging or wiring in machine to electrical circuit. Warranty will be

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The control panel will allow the user to set the appropriate product ratio by simply entering in the number which represents the
water portion of the water to product ratio. The user will also be able to digitally set the desired tank temperature. A factory
calibration will be performed on the dispensing unit prior to shipment to ensure that the ratio entered coincides with the ratio
delivered. Feedback from the pump motors will allow the control to compensate for variations in operating conditions to maintain
the proper ratio.

INITIAL SETUP

1) Brewer should be connected to water supply as outlined in PLUMBERS INSTALLATION INSTRUCTIONS above.
Water should be turned off. Turn the on/off switch on back of unit to the off position. Plug or wire unit to the appropriate
voltage circuit as indicated on the serial tag. Remove the front access door from the unit by lifting up, tilting bottom
forward, and then lowering the door to clear drip angle. Place the concentrated product in place in the appropriate
compartment. The lower product compartment and pump supply the right side faucet. The upper product compartment
and pump supply the left side faucet. Remove the protective cap from the product spout. Attach the connector from the
lower pump to the lower product, and the connector from the upper pump to the upper product. The pumps must now be
primed. Skip ahead to the section titled SETUP MODE for instructions on how to prime pumps.

2) If you would like to check the “calibration ratio” do so before proceeding to the next step. The calibration ratio is set
at the factory but should you wish to check or change the setting, skip ahead to the CALIBRATION MODE section.

3) Turn on water supply. Make sure that the on/off switch on back of unit is in the on position. The hot water tank will
begin to fill. The tank system incorporates a multipurpose water level probe. The probe signals the control board when
the water in the tank has reached the appropriate level. This probe also acts as a heater safety probe telling the control
board when the tank has filled so the board will supply power to the tank element. The probe also signals the control
board to cut power to the element should the water fall below it for more than one minute. Power is restored when the
water level again reaches the probe. Actuate all the faucets on the machine to remove air from the lines and to ensure
that the pumps actuate when the water and concentrate make contact internally in the faucet. Allow approximately 10
minutes for the water in the tank to heat to preset temperature. This will be evident by the cessation of the heating noise
from the tank. You may then check the temperature of the water by drawing water from the hot water faucet. The tank
incorporates an electronic temperature control system which may be adjusted to the desired temperature. Skip ahead to
the section titled SETUP MODE on page 4 for instructions on how to adjust tank temperature and the product ratio.

4) Replace all covers previously removed. Brewer is now ready to operate.

CALIBRATION MODE

During the calibration process the control dispenses concentrate from the faucet for a set amount of time. The
amount of concentrate delivered is then compared to the volume of water normally dispensed within the same time
period and the resulting "calibration ratio" is entered in. This provides the control the information it needs to ensure that
the "product ratios" entered in during subsequent programming will be accurate. This process will be performed at the
factory and will generally not be necessary for the customer.

During the calibration process the fill solenoid and the heater relay will be inactive. If the dispensing unit has been
run previously this will allow you to drain the tank below the faucet lines which is necessary for the calibration process.
The following procedure will outline the calibration procedure. The steps are first given in an abbreviated "quick start"
format and are followed by detailed steps and ratio calculation procedure.

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Quick Start Directions:

1. Turn on/off switch on back of dispenser unit off. Hold the control board enter button in while turning power switch

back on. Control enters calibration mode.

2. Drain tank below faucet lines. Drain faucet lines by opening faucet.

3. Select side to calibrate by pressing L or R button. Press Enter. Indicator light flashes.

4. Lock product faucets open. Hold a small graduated container below appropriate faucet and push enter.

5. Calculate ratio (See "Calculate Calibration Ratio" on next page) and enter using L and R buttons. Display "End" and

press enter to exit.

6. If calibration ratio was changed the product ratio must be set as described in SETUP MODE.

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Detailed Directions:

To enter the calibration mode turn on/off switch on the back of the unit off (On units rated other than 120V this
switch powers control board only). While pressing the enter button on the control board return the switch to the on
position. Continue to hold the enter button and after approximately three seconds the unit will enter the calibrate mode.
In the calibration mode the fill solenoid and the tank heater relay will be inactive. This will allow you to drain the tank
below the faucet lines which is necessary for the calibration process. After draining leave the coffee faucets for the
side(s) to be calibrated in the locked open position.

This is the main screen and is displayed upon entering the calibrate mode. Both the left and right side

L - r

indicator lights will also be lit when at this screen as a prompt to select a side for calibration. You may exit
calibration mode by pressing the enter button again.

L
r

been chosen for calibration and the chosen sides indicator light will be lit. You may toggle between the left and
right sides if the wrong side is inadvertently chosen. At left are the two possible displays

When the desired side has been chosen press enter again to confirm the selection. The digital display

Select the side to be calibrated by depressing the L or R button. The digital display will indicate which side has

L
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remains unchanged but the indicator light for the chosen side begins to flash. Hold a small graduated
container below the faucet to catch the concentrate which will be dispensed in the next step. A container
graduated in milliliters is preferable for accurate measurement of the small volume which will be dispensed.
Note: The faucet should be in the locked open position and the tank drained.

Press enter and the machine will dispense concentrate for 5 seconds 6 times in a row. During the

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dispensing process the indicator light for the chosen side will flash. After the process is complete the current
calibration value ratio will be displayed. Calculate the new ratio as described in the "Calculate Calibration ratio"
section below and use the L and R buttons to change the display to the desired value. Press enter to set value
and return to the main screen.

L - r

You are now back at the main screen. The process may be repeated for the other side if desired. When
calibration is complete close the faucets and press enter to exit calibration mode. After a 5 second delay the
fill valve and the tank heater relay will be active again.

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Calculate Calibration Ratio:

The calibration ratio is determined by dividing the amount of water normally dispensed in 30 seconds by the amount
of concentrate dispensed during the calibration procedure outlined in the preceding section. Note that you must use the
same units of measurement for both the water volume and the concentrate volume to obtain the correct ratio. In other
words ounces or milliliters must be used for both numbers. The information in the table below and the provided
conversion factors will assist you in determining the ratio.

Example:

Assume that the volume of concentrate delivered was 19 milliliters and the faucet flow rate is approximately 45
ounces in 30 seconds. First convert the water volume from ounces to milliliters. 45 x 29.57 = 1331ml. Next divide water
volume by concentrate volume to get ratio. 1331 / 19 = 70. This indicates that 70 parts of water would be delivered for
each part of concentrate. The calibration ratio is 70:1 and 70 would be the value entered into the control.

Conversion Formulas and Table:
Multiply ounces by 29.57 to obtain milliliters.

Divide milliliters by 29.57 to obtain ounces.

Typical Values And Ratios For Calibration Procedure

Normal Water Flow Rate In 30

Seconds From Coffee Faucet

Concentrate Volume Delivered

During the 6-5 Second Intervals

Calibration Ratio =
Water/Concentrate

45 ounces .643 ounces 70

1331 milliliters 19 milliliters 70

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