MB Medusa GEN2 QuadHead CounterPressure Bottle... Instruction Manual

GEN2 QuadHead CounterPressure
Bottle Filler
Setup, Operation, & Maintenance Guide

Congratulations on your purchase! This bottle filler is designed
to be an intuitive, quick, and foam-free filling station that will
serve your brewery for years. We at MoreBeer! Pro are confident
you will be happy with this purchase, and will be there to help if
you have any questions.
Your Filler was shipped to you partially assembled. The following
guide will walk you through setup & operation of the filler. Before
getting into it, please be aware this product involves the use of
compressed gasses & breakable glass. As much as we simply
recommend common sense, here are some specific warnings as
well:
Warnings:
● Always wear safety glasses when using the Medusa
Filler. (Glass is fragile, pressure is involved, and mistakes
happen)
● Do not exceed the maximum working pressure of 15 PSI
for this unit
Tools for Setup:
● Crescent Wrenches / Channel Locks
● Flat Head Screwdriver / Nut Driver
Page 1 |7

KEG823 - Medusa GEN2 MultiHead CounterPressure Filler
● Allen Wrench Set
Overview/Assembly/Setup:
Your Medusa G2 QuadHead Bottle Filler will need some
additional assembly to prepare for filling. The instructions below
will get you fully set up for prefill sanitizing.
1. Place one of the Frame Legs (See Figure 1, Item 5, i.e
1.5) upright, then set the flanged edge of the Drip Tray
(1.4) onto the leg.
2. Insert the other Frame Leg into the edge on the other side
of the Drip Tray.
3. The Fill Block Assembly (1.1) has a Delrin Fill Block Mount
(2.2) holding the system together on each end. Slide
these mounts over the Frame Legs & tighten the Clamping
Handles (2.4) to lock them in place. (Clamping Handles
can be rotated to tighten, then clamped to fully lock)
4. Grab the CP Assemblies (1.5) then tighten to the Top Fill
Valve (4.2) assemblies that are sticking through the CP
Mounts. Use Channel Locks or Crescent Wrenches to
ensure a tight seal.
5. Tighten the Side Valve (4.5) assemblies to the side stems.
6. Connect the BackPressure Tubing (2.8) from your CP
Stem Side Valves to the Backpressure Manifold (2.5).
©MB Medusa GEN2 QuadHead Filler Owner’s Manual V1 Page 2 | 7
For replacement parts visit MoreBeerPro.com

7. Connect tubing from the side of your Backpressure
Manifold to the Drip Tray PRV (1.2) barb.
8. Confirm all Hose Clamps are tight, and you are ready to
proceed with PreFill Sanitizing! (Please Note: Extra Hose
Clamps have been included)
PreFill Sanitizing:
Operation of the filler is fairly intuitive, though we recommend
running water/sanitizing solution instead of beer until you get the
hang of it. Start with one fill head, then two, then once you’ve got
all 4 down, switch over to your beer!
1. Prior to use, ensure the filler is clean & sanitized.
Assuming the unit has been cleaned after its last use &
stored dry, only a sanitizing step should be necessary. If
you doubt the cleanliness of the filler, run it through the
Post-Fill Cleaning cycle. It’s better to do a redundant
cleaning cycle than contaminate a bottling run.
2. Sanitizing is straightforward, simply hook up sanitizer
instead of beer & push that through each nozzle & the
BackPressure Manifold.
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KEG823 - Medusa GEN2 MultiHead CounterPressure Filler
3. Please Note: Never use any sanitizing containing chlorine.
Sanitizers like this such as Bleach will erode stainless
steel, pitting it over time. We recommend a No Rinse
foaming sanitizer such as StarSan™ used according to the
manufacturer’s directions.
Filling:
1. Put the bottles you will be filling under the outside left and
right fill nozzles.
2. Loosen the clamping handles & lower the fill block until the
stoppers seal into the bottles.
3. Hook up Beer to the 1.5” TC inlet on the Fill Block.
4. Hook up CO2 to the Gas Inlet (2.13).
©MB Medusa GEN2 QuadHead Filler Owner’s Manual V1 Page 4 | 7
For replacement parts visit MoreBeerPro.com

5. Once beer, CO2, and drainage are all hooked up, you are
ready to fill!
6. Purge the Fill Block by opening the Sample Valve / Purge
Valve on top of the elbow until beer flows out.
7. Pull the fill head towards you, being careful not to touch
the stopper (4.8) or Stem (4.7) below. These surfaces will
contact your beer and must be kept sanitized.
8. Slide a bottle onto the fill stem against the stopper and
rotate down, wedging the bottle between the drip tray &
stopper. If there is not a good seal, you will need to adjust
the height of the fill block (see Setup section above).
9. Purge & pressurize the bottle by moving the top valve
handle to the left, allowing gas to flow. Move the handle of
the lower valve towards you, holding for ½ second, then
return to the Off position. Repeat this a couple of times to
completely purge the bottle of oxygen. Turn both handles
to the Off position
10. Turn the upper handle to the right, and the lower handle
away from you. This will allow beer to flow. Dial in the fill
speed & any foaming issues by adjusting the
BackPressure PRV, set above the right side of the drip
tray. Tightening the PRV will reduce speed & foaming,
while loosening the PRV will increase fill speed, while
increasing the likelihood of foam. You will need to dial this
in at the beginning of each fill session.
11. Once the bottle is full of beer, close the lower valve then
the upper valve to shut off flow. Then remove the bottle by
pulling the base towards you then down.
12. Place bottle aside for capping and repeat!
13. When finished bottling for the day, make sure to clean the
system prior to storage.
Post-Fill Cleaning:
Page 5 |7

KEG823 - Medusa GEN2 MultiHead CounterPressure Filler
We recommend running your filler through this cleaning cycle
after every fill day, and before first using. If you have any doubts
as to the cleanliness of your filler it is far better to run another
cleaning cycle than potentially contaminate a batch.
Level 1 Cleaning – Post Fill & first time use
1. Using crescent wrenches or channel locks, Unthread
the upper and lower compression fittings from your fill
heads.
2. Using a nut driver, loosen all hose clamps on tubing.
3. Remove tubing from all components and soak in
cleaner.
4. Separate top & side Valve Assemblies from the fill
stem. Soak all components in cleaner with valves
closed.
5. Remove any TC fittings and clean separately.
6. Soak the entire SS fill Block Assembly in cleaner.
7. Run line brush through stems & fill block outlet posts.
Troubleshooting:
While we have made this product as intuitive as possible, it takes some learning to
perfect, and you can expect your fill speed to increase after some use. To maximize fill
speed and minimize foaming, we recommend filling from a temperature controlled, cold
carbonated vessel. Filling with warm beer will result in foaming, regardless of speed.
Final Notes:
Do not use this product for anything other than its intended purpose. MoreFlavor, Inc. is
not responsible for any damages, direct or indirect, that result from the use of this product.
Always ensure that you deal with quality suppliers & trust your product sources. Do not
use bottles you do not trust the quality of. We recommend using this machine sober,
alert, & armed w/ safety gear.
©MB Medusa GEN2 QuadHead Filler Owner’s Manual V1 Page 6 | 7
For replacement parts visit MoreBeerPro.com
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