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Models H71 & H84Important: To the Operator
The final phase of the heat treatment cycle is the
cooling phase. Now the freezer must cool the mix
below 41_F(5_C). If the product fails to cool in two
hours, the freezer will lock out.
This example illustrates that the temperature i s being
lowered, but has not yet reached the set point.
H71 Screen:
MODE: HEAT
PHASE: COOL
HOPPER TEMP: 55.0 F
BRUSH CLEAN ON: MM/DD
H84 Screen:
HEAT :MODE: HEAT
COOL :PHASE: COOL
55.0F HOPPER 55.0F
BRUSH CLEAN ON: MM/DD
The entire heat treatment cycle must be completed in
four hours.
When the entire heat cycle has been completed, the
normal display will appear, showing the machine in the
STANDBY mode. The machine may now be placed in
the AUTO mode or left in the STANDBY mode.
H71 Screen:
MODE: STANDBY
HOPPER TEMP: 41.0 F
BRUSH CLEAN ON: MM/DD
H84 Screen:
STANDBY :MODE: STANDBY
OK :MIX: OK
41.0F HOPPER 41.0F
BRUSH CLEAN ON: MM/DD
Hard Lock: There are two causes for a hard lock:
1. Fourteen days have elapsed since the last
brush cleaning. The following screen will be
displayed.
14 DAY TIMEOUT
CLEANING REQ’D
FREEZER LOCKED
PRESS SEL KEY
2. There has been a thermistor failure (freezing
cylinder, hopper, or glycol) during the heat
treatment process.
SYSTEM FAULT
SERVICE REQ’D
FREEZER LOCKED
PRESS SEL KEY
All four LED’s on the front of the freezer will light. Press
the SEL key.
The next display is the screen which will appear after
the failure message. To comply with health codes, heat
treatment system freezers must complete a heat
treatment cycle daily, and must also be brush cleaned
every 14 days. Brush cleaning is the normal
disassembly and cleaning procedures. F ailure to
follow these guidelines will cause the control to lock the
freezer out of the AUTO mode. Press the WASH key.
NO AUTO OPERATION
ALLOWED UNTIL
BRUSH CLEANING
PRESS WASH KEY
The next display is the screen which will appear after
the brush cleaning message and illustrates that the
control is in the OFF mode and the machine needs to
be disassembled and brush cleaned.
H71 Screen:
MODE: OFF
HOPPER TEMP: 41.0 F
FREEZER LOCKED