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Bunn Crescendo - Electrical Hook-Up and Calibration

Bunn Crescendo
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8
INITIAL SETUP
ELECTRICAL REQUIREMENTS
CAUTION: The dispenser must be disconnected from the power source until specified in
Electrical Hook-Up.
Electrical Hook-Up
CAUTION: Improper electrical installation will damage electronic components.
1. An electrician must provide electrical service as specified.
2. Using a voltmeter, check the voltage and color coding of each conductor at the electrical source.
3. Connect the dispenser to the power source.
4. If plumbing is to be hooked up later be sure the dispenser is disconnected from the power source.
If plumbing has been hooked up, the dispenser is ready for Initial Fill & Heat.
CAPACITY
1. Brew chamber has a capacity rating of 5 gm minimum up to 15 gm maximum of espresso grind coffee.
2. Brewer has a peak capacity of 60 single (small) espresso shots per hour.
Configuration
120V Configuration:
This electrical service consists of 2 current carrying conductors
(L1 and Neutral) and a separate conductor for chassis ground.
120-208/240V Configuration:
This electrical service consists of 3 current carrying conductors
(L1, L2 and Neutral) and a separate conductor for chassis ground.
220-240V Configuration:
This electrical service consists of 2 current carrying conductors
(L1, L2) and a separate conductor for chassis ground.
120V
Models
220-240V
Models
Begin by using an allen wrench to back out
the flow-rate adjuster (counter-clockwise). The
number of turns are shown next to each valve.
1. Open the door and place the toggle switch
to the “PRGM” setting.
2. Use the large cup size icon to navigate
to the menu to perform a timed dispense
to determine flow-rate for valve(s)
being replaced.
3. Use 6mm allen wrench to increase
(counter-clockwise) or decrease
(clockwise) flow-rate.
Left Soluble
6.6oz - 7.2oz
(198g - 216g)
*2.0 turns
Right Soluble
6.6oz - 7.2oz
(198g - 216g)
*2.0 turns
Hot Water
9.7oz - 10.3oz
(275g - 292g)
*3.25 turns
CALIBRATION PROCEDURE
NOTE: this is only recommended when
a valve is replaced, or when water
dispense volume is not met.
TEST HOT WATER
DISPENSE TO TEST
TEST LFT PWDR VLV
DISPENSE TO TEST
TEST RT PWDR VLV
DISPENSE TO TEST
120-208/240V
Models
X
W
Y
G

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