Taylor 337 Service Manual - page 14
10
Controls and Systems
Model 337
Service Menu
_________________________________
The Service Menu option allows a trained service
technician to access and modify critical operating
parameters for the machine.
SERVICE MENU
A B C D E F G H I J
EXIT TO OP. MENU
<- - - - - ->
SEL
The Service Menu options are listed in the table below:
A
Exit to Op. Menu
B
Temperature Scale
C
Viscosity Setting
D
Standby Temp.
E
Hopper Temp.
F
Compressor Cycle Time
G
Beater Off Delay
H
Compressor On Delay
I
PWM Duty Cycle
J
Edit Unit ID
Temperature Scale
(Option B)
This option allows the service technician to choose the
scale in which the machine will display all
temperatures. To select the Centigrade scale, press
the STBY (-->) key to move the cursor under the letter
“C” on the LCD. To select the Fahrenheit scale, press
the OFF (<--) key to move the cursor under the letter
“F”.
TEMPERATURE SCALE
TEMP IN
F OR C
_ _ _
<- - - - - ->
SEL
Pressing the MENU/SEL key accepts the selected
scale and returns the LCD to the Service Menu.
Viscosity Setting
(Option C)
The viscosity setting option allows the service
technician to adjust the viscosity at which the
compressor is deactivated during the AUTO mode of
operation.
Pressing the WASH (+++) or AUTO (-- -- --) keys will
increase or decrease the viscosity setting 0.1 amps
respectively. While the beater motor is on, the
displayed Present Viscosity is updated continually.
When the beater motor is off, this value is zero.
Note: The term “amp.”, used here for viscosity
measurement, is not the same as the term “amp.” as
would be measured by an ammeter.
Note: The barrel temperature must be raised > 25_F
to lower the amp draw.
Before setting viscosity, the unit must be sanitized,
primed, and placed in the AUTO mode. As the product
is freezing, monitor the amp draw of the beater motor.
After a few minutes of freezer operation, begin taking
product samples. When the product reaches serving
appearance, note the amp draw of the beater motor.
Set Screen C to reflect the amp draw that was
witnessed when servable product was achieved.
VISCOSITY SETTING
AMPS
= 5.0 AMPS
PRESENT
= 0.0
+ + +
-- -- --
SEL
Pressing the MENU/SEL key will accept the viscosity
and return to the Service Menu.
Set Standby Temperature
(Option D)
This option allows the technician to adjust the barrel
temperature at which the compressor will turn on in the
Standby Mode. The factory default setting is 30_F
(--1_C). The minimum setting is 28_F (--2_C) and the
maximum setting is 41_F (5_C). The differential
between cycle off and cycle on is 2_F. Pressing the
WASH (+ + +) KEY and the AUTO (-- -- --) key increase
and decrease the temperature by 1_ respectively.