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  5. Installation & Operating Manual

Bunn IMIX-3S+ Installation & Operating Manual

Summary of IMIX-3S+

  • Page 1

    Crescendo installation & operating guide bunn-o-matic corporation post office box 3227 springfield, illinois 62708-3227 phone: (217) 529-6601 fax: (217) 529-6644 to ensure you have the latest revision of the operating manual, or to view the illustrated parts catalog, programming manual, or service m...

  • Page 2

    2 52384.0 031314 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 ...

  • Page 3

    3 user notices the notices on this dispenser should be kept in good condition. Replace unreadable or damaged labels. 00986.0000 37881.0000 00656.0001 00824.0002 52384.0 101116 12368.0002.

  • Page 4

    4 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 m...

  • Page 5

    5 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. Ali...

  • Page 6

    6 6. Rotate the top of group head toward rear of machine until it snaps into place as shown in figure 4. Figure 4 p4377 7. Slide red lock to the right until it snaps into place as shown in figure 5. Figure 5 p4378 8. Install group head tube into quick connect fitting on bottom of espresso drive, ins...

  • Page 7

    7 52384.0 101116 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 7. Figure 7 10. When the hopper is in place on the grinder, pull the hopper gate all the way forward to a...

  • Page 8

    8 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 gr...

  • Page 9

    9 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 th...

  • Page 10

    10 52384.0 101116 operating controls and interface 1. Cup size buttons: momentarily pushed to select beverage size to dispense. 2. Dispense buttons: momentarily pushed to dispense selected beverage 3. Led indicators: illuminates when the adjoining button has been selected. 1 3 2 2 operating the disp...

  • Page 11

    11 general cleaning the use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning all surfaces on bunn-o-matic equipment. Exterior surfaces: • do not use any abrasive materials. • use a soft, dry cloth to wipe down the exterior surfaces of the dispenser to ma...

  • Page 12

    12 52384.0 101116 52564.0000a 12/15 © 2015 bunn-o-matic corporation notice the cleaning instructions noted above are for non-dairy sugar based food products. When dispensing any other food product, the cleaning cycle for the whipping chamber assembly and ejector elbow must be performed daily. Nota: ...

  • Page 13

    13 cleaning - continued every 2000 cycles: espresso brew chamber 1. Remove espresso brew group head, and clean with a brush and warm water. 2. Remove sieve head & cake pusher. 3. Clean sieve head & cake pusher with lukewarm water only, paying special attention to the channels. 4. Insert cleaning bru...

  • Page 14

    14 cleaning - continued every 2000 cycles: espresso brew chamber 5. Re-assemble the brewer, making sure the gear wheels are aligned (open) for sieve head insertion. 6. Re-attach the water inlet hose and place the brewer back in the drive unit. 7. Reconnect outlet hose, and if present, slide the red ...

  • Page 15

    15 cleaning - continued rinse cycle (required daily) 1. Open the door and place the normal/program/rinse switch in the rinse position. 2. Close door and place a minimum 400ml container under the dispense nozzles. 3. Press the button under rinse on the screen. 4. Press any beverage selection button. ...

  • Page 16

    16 cleaning - continued clean cycle 1. Open the door and place the normal/program/rinse switch in the rinse position. 2. Press the button under clean on the screen. 3. When the screen prompts add cleaning tablet, open the dispenser door, and drop a cleaning table into the opening of the espresso bre...

  • Page 17

    17 cleaning - clean cycle continued 6. When screen displays press dispense to start, press any beverage dispense button to begin cleaning cycle. 7. During the cleaning cycle, the screen with display cleaning cycle in progress/press any button to stop. 8. When the cleaning cycle is complete, screen w...

  • Page 18

    18 weekly: parts washing and sanitizing 10. Rinse cleaning brush, dip in sanitizing solu- tion, and brush the bore of both dispense nozzles. Note: repeat this pro- cedure for each nozzle separately. 9. Prepare one-gallon (3.8 liter) of sanitiz- ing solution with at least 100 ppm of available chlorin...

  • Page 19

    19 locks/disables 1. Open the door and place the normal/program/rinse switch in the program position. 2. Use the large cup button to scroll to the locks/disables screen, and press the button under “yes”. 3. In the dispense lockout screen, pressing the button under yes will prevent the dispenser from...

  • Page 20

    20 adjustments beverage dispense time adjustment: 1. Open the door and place the normal/program/rinse switch in the program position. 2. Use the large cup button to scroll to the set beverege sz screen, and press the button under “yes”. 3. Use the large cup button to access the beverage you wish to ...

  • Page 21

    21 adjustments - continued grinder throw weight adjustment: 1. Open the door, and slide the espresso brew group lock to the left to unlock the brew group. 2. Tip the top of the brew group head towards the front of the machine to disengage from the espresso drive, then remove brew group from the driv...

  • Page 22

    22 door safety interlock the dispenser is equipped with a door interlock safety switch, which prevents the operator from being exposed to the moving parts of the espresso brewer if the door is open. The switch may be overridden by a qualified service technician by insert- ing the service key, (bunn ...

  • Page 23

    23 draining the hot water tanks - continued 14. The screen will display system wet test. Press the button under yes. 15. Press the button under cool esp tank. 16. Press the button under start in the cool esp tank screen. 17. The pump will begin running, and hot water will dispense into the container...

  • Page 24

    24 adjust soluble tank temperature (190° f maximum) adjust minimum soluble tank ready tem- perature for lockout (185° maximum) takes you to the set beverage size sub-menu to adjust beverage size. Tank temp xxx° (-) exit (+) ready temp xxx° (-) exit (+) set beverage sz exit yes esprso temp xxx° (-) e...

  • Page 25

    25 set the amount of time after the hot water has completely pumped into the brew chamber, for the pre-heat cycle so that the drain valve is on to drain the chamber. Sets the dispense time (in seconds) for a small coffee white beverage. Menu repeats for nine other beverages. Set drain time (-) .# se...

  • Page 26

    26 pressing any switch on the door will activate the coffee grinder motor. This is a momentary switch function. Test grinder dispense to test test flow meter flow meter: 0 test piston down 140 up pressing the button below the “down” or “up” on the lcd display will activate the appropriate piston act...

  • Page 27

    27 normal/program/rinse switch: normal: allows all dispenser functions. Must be in this position for dis- pensing. Program: allows access to program menus using touch pad and lcd screen. Rinse: pressing dispense button on front door will dispense dilution water and power whipper motor for ten second...

  • Page 28

    28 esprso ready xxx (-) exit (+) press and release right switch (advance to next menu), “ ” appears on screen. Programming menu’s tank temp xxx° esprso temp xxx° (-) exit (+) strength adjust (-) exit (+) exit yes calibration exit yes locks/disables exit yes diagnostics exit yes continue to “a” conti...

  • Page 29

    29 programming menu’s (cont.) auger delay (-) .50 sec (+) select units 0 refill 155 (-) exit (+) whipper delay eng exit metric (-) .00 sec (+) cal hot water press dispense cal lft pwdr vlv press dispense pump start delay (-) .# sec (+) esp threshold (-) ### (+) cal rt pwdr vlv press dispense “b” pst...

  • Page 30

    30 programming menu’s (cont.) 52384.0 101116 test esprso htr exit yes test switches test powder htr exit yes test refill useswitchtotest exit yes test left augr dispense to test test mdl augr dispense to test test left whipr dispense to test test rt whipper dispense to test test hot water dispense t...

  • Page 31

    31 programming menu’s (cont.) 52384.0 101116 will replace all dispense setups “h” are you sure no yes exit to home screen return to (n) build a beverage - standard menu setup sw 1 recipe no yes note: press and release right switch to advance to next menu. Recipe setup? User select mode single multi ...

  • Page 32

    32 programming menu’s (cont.) - build a beverage - custom beverage setup sw 1 recipe no yes note: press and release right switch to advance to next menu. Recipe setup? User select mode single multi switch 1 recipe exit yes (-) custom (+) sw 1 small tm (-) ##.# (+) sw 1 large tm exit yes standard men...

  • Page 33

    33 electrical schematic 52384.0 101116 10 5 1 10 5 1 10 1 5 15 20 1 1 5 1 5 10 15 20 1 10 1 5 1 1 5 4 1 10 1 5 15 20 10 1 5 1 5 10 15 1 15 16 1 5 10 14 1 1 1 4 3 1 1 ps-1 power supply 24vdc, 180 watts red gray wht blk bean hopper photosensor red gray red red red blk current transformer puck bin prox...