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Page 12 Model LCD-2R and LCD-2A
To check water flow rate and calibrate the actual mix ratio adjustment to match the programming mix ratio:
“Engineer” Program Settings
TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN ONLY
Programming Guide for Calibration of Mix Ratio (cont.)
IMPORTANT NOTE REGARDING
PORTION OVERRIDE BUTTON:
The default time setting for the override portion is 100 which
equates to 10.0 seconds. The override dispense volume
should be set to 100 (= 10.0 seconds) for calibration purpos-
es. Follow the programming guide to determine and change
the setting to 100 for calibration purposes.
1. Disable the concentrate pumps by entering the “Engineer”
setup mode as indicated above. This will allow
determination of the exact water delivery for a
10 second dispense.
2. Using a 1000ml beaker (ensure override time setting is
set to 100 for a 10 second dispense), push and release the hidden
override portion button located on the bottom left side of the door as shown above. Within 5 seconds, place the
1000ml beaker under the dispense spout and activate the desired dispense switch and capture the dispensed
water into the beaker.
NOTE: Activating the dispense switch during the portion dispense cycle will cancel the portion.
Record the water volume and repeat at least 2 times to achieve an average dispense volume.
3. Re-enter the “Engineer” mode programming and re-enable the concentrate pumps, then disable the water delivery
to allow only concentrate to flow from the dispense spouts.
4. Using a 50 ml beaker with an opening sufficient to capture the flow of concentrate from the dispense spout, push
and release the hidden override portion button located on the bottom left side of the door as shown above. Within
5 seconds, place the 50 ml beaker under the dispense spout and activate the desired dispense switch and capture
the dispensed concentrate into the beaker. Record the concentrate volume and repeat at least 2 times to achieve
an average dispense volume.
Override portion button: Press and release; then
activate desired dispense switch within 5 seconds
for a 10 second dispense cycle.
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WARNING:
A dispense time greater than 10 seconds will
require a graduated beaker larger than 1000ml in
order to safely catch the dispensed “HOT” water.