Bunn SmartWAVE - Dispensing System

SmartWAVE
®
Training Manual
14
Dispensing System
Thedispensingsystemconsistsof:
• Inletvalve
• Brewtube
• Sprayhead
• Airpump
• Ventvalve
When the operator initiates a brew cycle the inlet valve ac-
tivatestollthewatertank,thecoldincomingwaterinthe
bottom pushes the hot water on the top through the spray-
head tube. Once the tank is full the air pump turns on and the
vent valve begins to cycle, this cycle actions creates varying
pressure in the tank creating a wave action as the water is
dispensed. The wave creates a high level of turbulence in the
coffee leading to superior extraction.
During the brew cycle the water will drop below the level of the
llprobe,thecontrolboardwillshutofftheairpumpandvent
valvetoallowthetanktorellbeforecontinuingthebrewcycle.
This is the normal brewing routine of the SmartWAVE and is
similiar to a pulse brew. Additional pulse brewing, that cycles
the inlet valve, can be programmed.
At the end of the brew cycle the inlet valve is deenergized and the vent valve closes. The air pump remains on to
forcethewaterinthetankoutofthesprayheadtubebelowthellprobe.Therellcircuitthenllsthetanktothell
probe.
The SmartWAVE
®
seriesofbrewersareshippedwitha6-078sprayhead.Thesprayheadistheoutputowregulator
forthebrewer.Thenumberandsizeofholesdeterminestheoutputowrate.Ifthesprayheadischangedtoadiffer-
ent number the brew times will have to be adjusted. The SmartWAVE can use any BUNN sprayhead, including the
17 hole, A change of sprayhead will require adjusting the batch size.