Vogt
®
VT Service Manual
8-1
Service Operations
8.
Service Operations
P
RINCIPLE
OF
O
PERATION
The Vogt® VT Series line of ice making machines from Vogt® Tube Ice®, LLC, combines state-of-the-art
technology and efficiency with a reputation for quality and reliability developed over four decades of
manufacturing.
In the Vogt® VT Series icemaker, ice is produced on both walls of vertically suspended cylindrical tubes with
recirculating water. As ice is produced, makeup water is fed to the water tank via float valve. Freeze time
and harvest time are controlled by a Programmable Logic Controller (PLC).
In freeze cycle, the liquid feed valve is “open” (R404A machines only) and the compressor and water pump
are “on”. At the end of the Freeze cycle, the PLC initiates the Harvest cycle were the hot gas solenoid
valves and chopper motor are energized, and the water pump is turned “off” and liquid feed valve “closed”.
Bin control or remote on/off switch will allow machine to complete a freeze and harvest cycle prior to
interrupting operation. For R404A machines, the machine will go thru a Pumpdown before cycling off.
FIGURE 8-1
Piping Schematic
Freeze
Cycle
Harvest
Cycle
Summary of Contents for VT100
Page 1: ...VT Series Ice Maker Model VT40 VT60 VT80 VT100 Revision Date 1 04 12 ...
Page 21: ...2 14 Vogt VT Service Manual Installation Instructions Blank ...
Page 29: ...4 6 Vogt VT Service Manual Initial Startup Blank ...
Page 51: ...7 6 Vogt VT Service Manual Troubleshooting Blank ...
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