General • Inspections

Bunn | Ultra-2 HP Black/Stainless, Liquid Autofill - Cleaning Card: Cleaning Checklist

Great tasting coffee relies on multiple factors, and one of them is a clean machine. Diffusers often accumulate old and burnt-on coffee which affects the flavour in the coffee-making process, making it sour, bitter or metallic in taste. Instead of letting your coffee machine build up in grime and dirt, regularly cleaning it each night after a day’s work will help regulate the build-up.

MaintainX

12/07/2022

Bunn | Ultra-2 HP Black/Stainless, Liquid Autofill - Cleaning Card: Cleaning Checklist

Ultra-2 Cleaning Steps

: In preparation for cleaning the machine turn-off the auto-fill function by pressing the “auger button” until the display reads “auger on”. The auto-fill will need to be turned-off at a pre-determined period of time prior to cleaning. This will depend on your predicted volume thru the rest of the day.

When ready to begin cleaning, turn off the refrigeration by pressing the “snowflake but- ton” until display reads off.

Empty the product from the hopper. Try to get as much product out of the hopper as pos- sible. Add warm water to help remove excess product if needed. All dispensed product must be thrown away and not reused. Repeat the pro- cess for the other hopper as necessary.

Begin the hopper tear-down process by unplugging the lamp lid, followed by disconnect- ing the concentrate and water lines. Remove the hopper lid and set aside, this can not be sub- merged in water and must be hand-washed. Take-out the auto-fill refill probe, before you remove the hopper. Repeat the process for the other hopper.

Remove the hopper, auger, hopper seal, and auger nose seal, if used, from the machine. With the hopper removed you can now start dis- assembling the faucet assembly to be cleaned. Repeat the process for the other hopper. Re- move the drip tray and grate to be cleaned with hopper parts. All items except for the rubber seals can be placed in the dishwasher. It is not recommended to use rinse agents if using the dishwasher- as this may cause stress cracking on the hopper.

If you are not using the dishwasher, place all removed and disassembled parts in the sink to be washed with warm soapy water. Once all parts have been washed place in a Kay-5 sanita- tion bath (120°F) to soak for at least 5 minutes. While the parts are soaking wipe down the exte- rior of the machine, cooling drum, hopper drip tray, and auto-fill refill probe.

To re-assemble, attach the clean, hopper seal at the base of the cooling drum followed by putting the auger nose seal, if used, on the auger shaft. Place the auger over the cooling drum pushing it as far onto the auger shaft; this may require rotating the auger. With the machine prepped for the hopper, reassemble the hopper dispense faucet and ensure the auger nose bush- ing is secured in place. Slide the hopper over the auger and cooling drum pushing it firmly onto the hopper seal before pressing slightly

Re-attach the auto-fill refill probe to the hopper. Then place the hopper lid back on-top of the hopper, plugging in the lid lamp. Re-connect the concentrate and water lines to the back of the hopper. Re-attach the drip tray and put the grate in place.

Turn the auto-fill option back on by pressing the auger button until the display reads “left auger refill on”. Followed by turning on the refrigeration by pressing the “snowflake button” until the display reads ice.

Source: MaintainX (Community Member)