Outlet Lines To The Dispenser; Start-Up Procedure - Cornelius Granita Training Manual

Ice Peak Training Manual
The length of tubing and vertical lift that a BRIX pump can accommodate at the concentrate inlet is
dependent on the particular characteristics of the product. Also, colder concentrate temperatures
adversely affect the systems inlet side due to the increase in viscosity. A brix system should not create
over 7 inches of vacuum (in/Hg) (24 kPa) at the inlet fitting while the dispenser is open and flowing a fin-
ished drink. Inlet vacuum that is too high can evacuate the air suspended within some concentrates
("degassing"), causing inconsistency of brix or premature operation of the vacuum shut-off (if used). If
high inlet vacuum conditions are encountered, use larger tubing I.D. although, shorter inlet line may be
necessary. When a concentrate is highly viscous and/or contains large amounts of particulates it is
advised that the inlet line be as short as possible and have a minimum amount of vertical lift.
Concentrate inlet lines must be NSF listed, clear heavy wall (1/8" (3mm) thick) vacuum tubing in either 1/
2" or 3/8" (13 or 10mm) I.D. Although enough tubing to prevent kinks and include some "extra" tubing in
case service is needed at a later date. Always install stainless steel inserted Oetiker® clamps to all con-
nections to prevent vacuum leaks.
In a facility where the concentrate cannot be located near the Brix pump, it can be pumped from a remote
location using a SHURflo beverage or juice gas pump. The Brix pump must not have positive pressure at
the concentrate inlet line. The SHURflo Vacuum Regulator must be installed prior to the concentrate inlet
fitting of the pump, allowing concentrate to enter the pump under vacuum.
When an uninterrupted flow of concentrate is desired, the SHURflo Automatic Selector Valve can be
plumbed in the inlet line to allow 2 or more B-I-B's to be connected. This allows B-I-B changes during
convenient times without interruptions of finished drink dispensing.

Outlet Lines to the Dispenser

The total run of concentrate tubing from the Brix pump to the dispenser (including cold plat if used)
should be kept to a minimum. Concentrate outlet tubing should have minimal back-pressure during pump
operation. Back -pressure is dependent on the line length and I.D., vertical lift, viscosity, temperature and
dispenser valve flow.
The installation of a SHURflo Sanitizing Valve is recommended with all drink concentrates. When the
valve is moved to the "Sanitize" position it allows sanitizing solution to be directed from the concentrate
chambers back into the water side of the pump. Plumb the concentrate outlet line from the pump to the
bottom port of the valve. Connect the concentrate line to the dispenser at the port marked "Dispense".
Install a "T" into the inlet water line and plumb to the "Sanitize" port.
Always use NSF listed, high pressure braid tubing (3/8" or 1/2" 10 or 13mm) I.D.) for pressurized lines
and secure all connections with stainless steel inserted Oetiker® clamps. Tie-wrap all tubing line securely
to prevent kinks and relieve stress on pump fittings. Although it is recommended that line lengths are kept
to a minimum, it is a good idea to allow some "extra" tubing in case service is required at a later date.

Start-up Procedure

1. Confirm that all tubing connections are properly clamped, fittings are tight, and lines are not kinked.
2. Install the Q.C.D to B-I-B connector or insert inlet tubing into product container.
3. Open the water source valve slowly allowing the pump to cycle, maintain water pressure below the
maximum of 50 psi (3.4 bar).
4. Place a container under the dispenser to collect purged drink solution and hold the valve open. The
concentrate will be drawn (ratio to water) to the pump with every stroke. Concentrate progress will
be evident with each stroke. Allow the pump to cycle until the air within the system has been purged
through the dispenser.
5. If the finished drink flow rate is not as desired, adjust the regulator (50psi (3.4 bar)). If using a fixed
pressure reducer, adjust the water shut-off valve to obtain the desired finish drink flow rate.
Publication Number: TP01057 - 14 - © 2003, IMI Cornelius Inc.