Lawler AVAS, Installation & Maintenance Manual

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(2)
The actual point of alarm is the sum of the set
point and the "high alarm". The system will re-
turn to normal when the temperature reaches the
sum of the set point and the "high alarm" minus
the hysteresis.
Parameter Programming
Set Point (SP) is the only parameter the user
can access without code protection
• Press SET . SP Text will appear on the display
• Press
SET
again. The real value is shown on the
display.
• The value can be modified with the UP and DOWN
arrows.
• Press SET to enter any new values.
• Press
SET
and
DOWN
at the same time to quit
programming or wait one minute and the display
will automatically exit programming mode.
The keyboard code can be reset to ZERO by
turning off the controller and turning it on again
while keeping the SET key depressed.
Access to all code protected parameters.
•
Press
SET
for 8 seconds. The access code value
00 is shown on the display. (Unit comes with code
set at 00 from factory).
• With the UP and DOWN arrows, code can be set
to user needs.
• Press
SET
to enter the code. If code is correct, the
first parameter label is shown on the display ( SP ).
• Move to the desired parameter with the
UP
and
DOWN
arrows.
• Press SET to view the value on the display.
• The value can be modified with the UP and DOWN
arrows.
• Press
SET
to enter the value and exit to text pa-
rameter.
• Repeat until all necessary parameters are modified.
• Press
SET and DOWN at the same time to quit
programming or wait one minute and the display
will automatically exit programming mode.
Display Messages
In normal operation, the probe temperature will be
shown on the display. In case of alarm or error, the
following messages will be shown: The alarm LED
indicates and active alarm, it will flash if an alarm is
cleared but alarm condition still exists.
• ALH = High Temp Alarm
•
ALL
= Low Temp Alarm
•
Er
= Memory Error
• -- = Short-Circuit Probe Error
• oo = Open Probe Error
Alarm can be cleared by pressing the DOWN button.
The alarm LED will flash while alarm condition per-
sists but the alarm message will not be shown.
Warning: This product contains chemicals known to the
State of California to cause cancer and birth defects or
other reproductive harm.
(Installer: California law requires that this warning be
given to the consumer.)
For more information: www.oehha.org/prop65
GUARANTEE
We guarantee the Lawler Mixing Valve to be free from
defects in workmanship and material, and for a pe-
riod of one year from date of purchase, will replace
any parts found by us to be defective. We will not be
held responsible, however, for any labor incidental
to, or for any damages caused by defective mate-
rial. Each mixing valve is thoroughly inspected and
tested under actual conditions at our factory.