Bunn Crescendo Series Installation & Operating Manual

Crescendo

Bean to Cup Espresso System

INSTALLATION & OPERATING GUIDE

To ensure you have the latest revision of the Operating Manual, Illustrated Parts Catalog, Programming Manual, or Service Manual, please visit the Bunn-O-Matic website, at www.bunn.com. This is absolutely FREE, and the quickest way to obtain the latest catalog and manual updates. For Technical Service, contact Bunn-O-Matic Corporation at 1-800-286-6070.

Post Office Box 3227, Springfield, Illinois 62708-3227

Phone (217) 529-6601 | Fax (217) 529-6644

Bunn-O-Matic Corporation

www.bunn.com

BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY

Bunn-O-Matic Corp. (“BUNN”) warrants the BUNN Crescendo as further described below for a warranty period of 1 year parts and labor.

These warranty periods run from the date of installation. BUNN warrants that the equipment manufactured by it will be commercially free of defects in material and workmanship existing at the time of manufacture and appearing within the applicable warranty period. This warranty does not apply to any equipment, component or part that was not manufactured by BUNN or that, in BUNN’s judgment, has been affected by misuse, neglect, alteration, improper installation or operation, improper maintenance or repair, non periodic cleaning and descaling, equipment failures related to poor water quality, damage or casualty. This warranty is conditioned on the Buyer 1) giving BUNN prompt notice of any claim to be made under this warranty by telephone at (217) 529-6601 or by writing to Post Ofﬁce Box 3227, Springﬁeld, Illinois 62708-3227; 2) if requested by BUNN, shipping the defective equipment prepaid to an authorized BUNN service location; and 3) receiving prior authorization from BUNN that the defective equipment is under warranty. Additionally, the following is excluded from the warranty period: Warranty Exclusions:

• Parts such as, but not limited to, hoppers and lids, drip trays, and plastic parts damaged due to improper handling or cleaning agents.

• Replacement of wear items such as, but not limited to, O-rings, gaskets, silicone tubes, hoses, and valve seats.

• Repairs made necessary due to poor water quality such as dispense valves, water inlet valves, scaling in the steam or hot water boilers. (Total Hardness recommended range of 4-7 gpg constant).

• Improper voltage. (See equipment operations manual for voltage speciﬁcations).

• Failure to use BUNN approved cleaning supplies constitutes improper maintenance.

• Failure to have required preventive maintenance performed by BUNN technician or authorized espresso service provider.

• Parts replaced under the terms of this warranty carry the remainder on the machine’s parts warranty term, or 60 days, whichever is greater.

THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY, WRITTEN OR ORAL, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF EITHER MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. The agents, dealers or employees of BUNN are not authorized to make modiﬁcations to this

warranty or to make additional warranties that are binding on BUNN. Accordingly, statements by such individuals, whether oral or written, do not constitute warranties and should not be relied upon. If BUNN determines in its sole discretion that the equipment does not conform to the warranty, BUNN, at its exclusive option while the equipment is under warranty, shall either 1) provide at no charge replacement parts and/or labor (during the applicable parts and labor warranty periods speciﬁed above) to repair the defective components, provided that this repair is done by a BUNN Authorized Service Representative; or 2) shall replace the equipment or refund the purchase price for the equipment.

THE BUYER’S REMEDY AGAINST BUNN FOR THE BREACH OF ANY OBLIGATION ARISING OUT OF THE SALE OF THIS EQUIPMENT, WHETHER DERIVED FROM WARRANTY OR OTHERWISE, SHALL BE LIMITED, AT BUNN’S SOLE OPTION AS SPECIFIED HEREIN, TO REPAIR, REPLACEMENT OR REFUND. In no event shall BUNN be

liable for any other damage or loss, including, but not limited to, lost proﬁts, lost sales, loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute equipment, facilities or services, or any other special, incidental or consequential damages.

392, A Partner You Can Count On, Air Infusion, AutoPOD, AXIOM, BrewLOGIC, BrewMETER, Brew Better Not Bitter, BrewWISE, BrewWIZARD, BUNN Espress, BUNN Family Gourmet, BUNN Gourmet, BUNN Pour-O-Matic, BUNN, BUNN with the stylized red line, BUNNlink, Bunn-OMatic, Bunn-O-Matic, BUNNserve, BUNNSERVE with the stylized wrench design, Cool Froth, DBC, Dr. Brew stylized Dr. design, Dual, Easy Pour, EasyClear, EasyGard, FlavorGard, Gourmet Ice, Gourmet Juice, High Intensity, iMIX, Infusion Series, Intellisteam, My Café, Phase Brew, PowerLogic, Quality Beverage Equipment Worldwide, Respect Earth, Respect Earth with the stylized leaf and coffee cherry design, Safety-Fresh, vemycoffee.com, Scale-Pro, Silver Series, Single, Smart Funnel, Smart Hopper, SmartWAVE, Soft Heat, SplashGard, The Mark of Quality in Beverage Equipment Worldwide, ThermoFresh, Titan, trifecta, TRIFECTA (sylized logo), Velocity Brew, Air Brew, Beverage Bar Creator, Beverage Proﬁt Calculator, Brew better, not bitter., Build-A-Drink, BUNNSource, Coffee At Its Best, Cyclonic Heating System, Daypart, Digital Brewer Control, Element, Milk Texturing Fusion, Nothing Brews Like a BUNN, Picture Prompted Cleaning, Pouring Proﬁts, Signature Series, Sure Tamp, Tea At Its Best, The Horizontal Red Line, Ultra are either trademarks or registered trademarks of Bunn-O-Matic Corporation. The commercial trifecta® brewer housing conﬁguration is a trademark of Bunn-O-Matic Corporation.

52384.1 031314

CONTENTS

Warranty ........................................................................................................................ 2

User Notices .................................................................................................................. 4

North America Requirements ......................................................................................... 5

Initial Setup .................................................................................................................... 6

Electrical Hookup ........................................................................................................... 8

Plumbing Requirements ................................................................................................ 9

Initial Fill & Heat ............................................................................................................ 9

Filling Soluble Hoppers ................................................................................................ 10

Operating Controls and Interface ................................................................................. 11

Creating “Custom” Beverage ....................................................................................... 12

Through Counter Option .............................................................................................. 16

General Cleaning .......................................................................................................... 17

Preventive Maintenance ............................................................................................... 25

Adjustments ................................................................................................................. 26

Door Safety Interlock ................................................................................................... 30

Wiring Schematic ........................................................................................................ 31

Tip: For advanced programming information, please visit the Bunn-O-Matic website, at www.bunn.com. This is absolutely FREE, and the quickest way to obtain the latest information.

USER NOTICES

The notices on this dispenser should be kept in good condition. Replace unreadable or damaged labels.

WARNING

Use only on a properly protected circuit capable of the rated load. Electrically ground the chassis. Follow national/local electrical codes. Do not use near combustibles. Do not deform plug or cord.

FAILURE TO COMPLY RISKS EQUIPMENT

DAMAGE, FIRE OR SHOCK HAZARD.

READ THE ENTIRE

OPERATING MANUAL BEFORE

USING THIS PRODUCT

00986.0000

12368.0002

As directed in the International Plumbing Code of the International Code Council and the Food Code Manual of the Food and Drug Administration (FDA), this equipment must be installed with adequate backflow prevention to comply with federal, state and local codes. For models installed outside the U.S.A., you must comply with the applicable Plumbing /Sanitation Code for your area.

00656.0001

WARNING

To reduce the risk of electric shock, do not remove or open cover. No user-serviceable parts inside. Authorized service personnel only. Disconnect power before servicing.

37881.0000

00824.0002

042319

CE REQUIREMENTS

• This appliance must be installed in locations where it can be overseen by trained personnel.

• For proper operation, this appliance must be installed where the temperature is between 5°C to 35°C.

• Appliance shall not be tilted more than 10° for safe operation.

• An electrician must provide electrical service as speciﬁed in conformance with all local and national codes.

• This appliance must not be cleaned by water jet.

• This appliance can be used by persons aged from 18 years and above if they have been given supervision or instruction concerning use of the appliance in a safe way and if they understand the hazards involved.

• Keep the appliance and its cord out of reach of children aged less than 18 years.

• Appliances can be used by persons 18 years and above with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.

• Children under the age of 18 years should be supervised to ensure they do not play with the appliance.

• If the power cord is ever damaged, it must be replaced by the manufacturer or authorized service personnel with a special cord available from the manufacturer or its authorized service personnel in order to avoid a hazard.

• Machine must not be immersed for cleaning.

• Cleaning and user maintenance shall not be made by children unless they are older than 18 years and supervised.

• This appliance is intended to be used in household and similar applications such as: – staff kitchen areas in shops, ofﬁces and other working environments; – by clients in hotels, motels and other residential type environments; – bed and breakfast type environments.

• This appliance not intended to be used in applications such as: – farm houses;

• Access to the service areas permitted by Authorized Service personnel only.

• The A-Weighted sound pressure level is below 70 dBA.

NORTH AMERICAN REQUIREMENTS

• This appliance must be installed in locations where it can be overseen by trained personnel.

• For proper operation, this appliance must be installed where the temperature is between 41°F to 95°F (5°C to 35°C).

• Appliance shall not be tilted more than 10° for safe operation.

• An electrician must provide electrical service as speciﬁed in conformance with all local and national codes.

• This appliance must not be cleaned by pressure washer.

• Keep the appliance and its cord out of reach of children aged less than 18 years.

• Children under the age of 18 years should be supervised to ensure they do not play with the appliance.

• Machine must not be immersed for cleaning.

• Cleaning and user maintenance shall not be made by children unless they are older than 18 years and supervised.

• This appliance is intended for commercial use in applications such as: – staff kitchen areas in shops, ofﬁces and other working environments; – by clients in hotel and motel lobbies and other similar types of environments;

• Access to the service areas permitted by Authorized Service personnel only.

042319

INITIAL SET-UP

1. Remove drip tray and cover from the parts box. Assemble the cover to the drip tray, then slide under the front door of the machine, engaging the rear of the drip tray into the opening in the lower front of the machine.

2. Remove the espresso brew group from the parts box.

3. Slide tube onto elbow ﬁtting on upper left side of espresso group head as shown in Figure 1.

Figure 1

P4375

4. Place groove on lower front of group head over mounting bar on espresso drive as shown in Figure 2.

Groove

Mounting Bar

Figure 2

P4376

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INITIAL SET-UP - continued

6. Rotate the top of group head toward rear of machine until it snaps into place as shown in Figure 3.

7. Slide red lock to the right until it snaps into place as shown in Figure 4.

8. Install group head tube into quick connect ﬁtting on

bottom of espresso drive, insuring that the tube is fully inserted as shown in Figure 5.

Figure 3

Figure 4

P4377

P4378

Brew Tube Connection

Figure 5

P4379

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INITIAL SET-UP - continued

9. Remove the bean hopper from the parts box. Align the bean hopper so that the collar on the bottom of the bean hopper will engage the opening in the grinder

as shown in Figure 6.

10. When the hopper is in place on the grinder, pull the

hopper gate all the way forward to allow beans into the grinder, then lock hopper in place as shown in Figure 7.

Figure 6

CAPACITY

Figure 7

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.

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.

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

120-208/240V

Models

042319

PLUMBING REQUIREMENTS

This dispenser must be connected to a cold water system with operating pressure between 138 - .620 MPa (20 and 90 psi) from a 1⁄2” or larger supply line. A shut-off valve should be installed in the line before the dispenser. Install a regulator in the line when pressure is greater than .620 MPa (90 psi) to reduce it to .345 MPa (50 psi). The water inlet ﬁtting is 3/4” NPT (US and Canada Models) and 3/4 British Parallel Pipe for all other models.

NOTE: Bunn-O-Matic recommends 6mm copper tubing for installations of less than 25 feet and 8mm for more than

25 feet from the water supply line. At least 18 inches of an FDA approved ﬂexible beverage tubing, such as reinforced braided polyethylene or silicone, before the dispenser will facilitate movement to clean the counter top. Bunn-O-Matic does not recommend the use of a saddle valve to install the dispenser. The size and shape of the hole made in the supply line by this type of device may restrict water ﬂow.

As directed in the International Plumbing Code of the International Code Council and the Food Code Manual of the Food and Drug Administration (FDA), this equipment must be installed with adequate backﬂow prevention to comply with federal, state and local codes. For models installed outside the U.S.A., you must comply with the applicable Plumbing /Sanitation Code for your area.

NOTE: If a backﬂow preventer is required by code, a shock arrestor should be installed between backﬂow preventer and

dispenser. Installing the shock arrestor as close to the dispenser as possible will provide the best results.

NOTE: 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.

PLUMBING HOOK-UP

NOTE: The plumbing connection is located on the back of the unit, using the water line included with some models, that

connects to a 3/8” male ﬂare or 3/4” hose thread.

1. Flush the water line and securely attach it to the valve threads on the rear of the dispenser.

2. Turn on the water supply.

INITIAL FILL & HEAT

1. Turn on the water supply, connect power to the dispenser, and place the main power switch on the rear of the

machine to the ON position.

2. Water will automatically ﬂow into the soluble tank to the proper level, then shut off. This will take less than ﬁve

minutes. In the event that a message appears “ﬁll time too long” powder cycle to clear the message.

3. The screen on the front door will display FILL ESPRSO TANK. Press the button under START.

4. The screen will display MOVING BREW CHAMBER, ESP TANK FILLING, and the espresso tank will begin ﬁlling. This

may take several minutes. In the event that a message appears “ﬁll time too long”, ﬂip the toggle switch to program mode, then back to normal position to clear the message.

5. When water dispenses from the espresso nozzle into the drip tray, press YES under WATER DISPENSED? to stop

the tank ﬁlling.

6. The tanks will then begin heating. When the tanks have completed heating, the display will read “READY TO BREW

SELECT SIZE”.

PRESET TANK TEMPERATURE

The tank temperatures have been preset at the factory to 80°C (180°F) for the soluble tank, and 102°C (215°F) for the espresso tank. Bunn recommends that to provide the best quality beverage, the installer adjust the tank temperature to the powder product manufacturers recommended temperature for the hot powder product being used.

1. Fill the hopper(s) with the dry product to be dispensed.

2. Fill the bean hopper with the whole beans to be ground and brewed. A grinder calibration should be performed.

LIQUID LEVEL CONTROL

The system automatically maintains the soluble hot water tank’s level by energizing the reﬁll solenoid when the water level drops below the liquid level probe. If the system has not successfully reﬁlled, a reﬁll error occurs. When a reﬁll error occurs, the reﬁll solenoid is de-energized. Once the cause of the reﬁll error has been investigated and cured, the system can be reset by either cycling the power to the machine (at least ﬁve seconds) using the main power switch at the rear of the machine, or by entering one of the program modes (see Programming Modes.)

042319

Filling Soluble Hoppers

1. Remove packing material from on top of the powder hoppers.

2. Remove powder hoppers by lifting the front of the powder hopper until the peg on the bottom of the hopper clears the hole in the mounting plate (see Figure 1). Then pull the hopper forward to remove.

3. Set the hoppers on the counter, and push the elbows up (see Figure 2) to close the chutes.

Figure 1

Figure 2

Figure 3

042319

+ 22 hidden pages

Bunn Crescendo Series Installation & Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual