Conair Thermolator TW, User Manual

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The Thermolator Direct Injection Model has a Pulse Mode in
which software pulses the cool and vent valves at a predeter-
mined rate under normal control and autotune when
all of the
following conditions are met.
l
The Control Point temperature is less than 245°F.
l
The setpoint is greater than the control point tem-
perature by more than 5°F.
Pulse Mode is used to relieve excess pressure that can build
up from thermal expansion of water in the process loop. The
Pulse Time and Pulse Cycle Time parameters are adjustable
under Test Mode. Pulse Time is the time in which the cool and
vent valves shall be activated within the pulse cycle. Pulse
Cycle Time determines the cycle time for each pulse to be
repeated. The cycle time can be set to ‘OFF’ to disable Pulse
Mode.
TW-1, TW-2
C
ONTROL
P
ULSE
M
ODE
D
ESCRIPTION
UGH025-0504 Thermolator TW Series
M
AINTENANCE
5-13
Pulse Mode Setup establishes the characteristics of the pulse
in Thermolator Direct Injection Model’s Pulse Mode.
To access the Pulse Mode Setup:
Follow Steps 1 through 7 in Test mode until
“P.Cy” displays on the Actual screen. This is the Pulse
Cycle Time parameter.
Release the Parameter Select button.
The left display shows the Pulse Cycle Time value.
Use the UP and DOWN Arrow buttons to set a
new Pulse Cycle Time value.
Momentarily press and release the Parameter
Select button to save the newly entered Pulse Cycle Time
value into non-volatile memory. P.tI displays on the
Actual display. This is the Pulse CTime parameter.
Use the UP and DOWN Arrow buttons to set
a new Pulse Time value.
Momentarily press and release the Parameter
Select button to save the newly entered Pulse Time value
to non-volatile memory.
Press and hold the Parameter Select button to
exit Pulse Mode Setup and to enter the next service on the
menu.
1
2
3
4
5
6
7
TW-1, TW-2
C
ONTROL
P
ULSE
M
ODE
S
ETUP
IMPORTANT: If the
Parameter Select button is
not pressed after a new
value is entered, then the
newly entered value is not
saved to non-volatile memo-
ry.