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LAARS Heating Systems
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LAARS Heating Systems
surface of the screen.)
Each time you press a key, the system will respond
with a beep. If you are entering a password, an
asterisk (*) will appear for each character you enter.
The beeps and asterisks will help you enter the correct
number of characters for your password.
When changing a numerical value, the system presents
a numerical entry screen, as shown below.
Menu 5. Numeric Entry Screen
8.3 Verifi cation Process for Safety-
Related Parameters
The verifi cation process allows the user to
confi rm that all the changes made are correct
and that there have not been any inadvertent
changes made.
1. When you start to change a parameter that
is related to safety, the system will present a
warning which looks like this:
Menu 6.
Parameter Safety Warning
WARNING
Changing safety parameters should only be
conducted by experienced, licensed boiler operators
and mechanics. Hazardous burner conditions can
happen with improper operations that may result in
PROPERTY LOSS, PHYSICAL INJURY, or DEATH.
Press OK to continue. The system will ask you
to login before you make a change. (For more
information on logging in, see Section 8.2.)
2. If you make a change in any group that could
affect the safe operation of the unit, the control
system will ask you to “verify” the change before
it is accepted.
3. Once all parameters have been changed, return
to the confi gure menu. In the lower right hand
corner of the screen you will see ‘VERIFY’
Press VERIFY, then press BEGIN to start
verifi cation.
Notes –
• Once you change one of these safety-related
parameters, you
must
fi nish the verifi cation process
for the group that includes the parameter,
or the
control system will not let the boiler operate
. You
can wait to do the verifi cation until you have changed
parameters in other groups, but before you return the
boiler to service, you must complete the verifi cation
process for all groups that have been changed.
• At the end of the verifi cation process, you must press
the Reset button on the front of the controller. See
Figure 34. You have to do this within 30 seconds, or
the verifi cation will be cancelled. To make it easy to
reach the Reset button, open the door on the front
of the boiler and slide out the control panel
before
beginning the verifi cation.
Figure 34. Reset Button on Controller
4. The system will present a listing for each group
of parameters that need verifi cation
See Menu 7.
