LAARS NeoTherm NTV (Sizes 150–850 MBTU/h) - Install and Operating Manual - Manual (Page 37)

Page 33 N eo T herm Boilers and Water heaters
Fig. 29 – Changing a Value
• The current setting for the setpoint appears in the box at
the top of the screen. In this example, this is 182°F.
• The numbers near the left edge of the screen show the
allowable range for this value. In this case, the setpoint
can be set anywhere between 240°F and 32°F.
• Press the Up- and Down-Arrow buttons to scroll the
setpoint until you see the correct value in the box.
• When the value is correct, press the round OK button.
You will notice that the system did not ask you for a
password, so this is one of the values that can be changed by
anyone.
Entering a Time
The controller uses several different timing functions, and
you can change some of these. (In this example, we will use
the screen for the Anti Short-Cycle Time.
Fig. 30 - Changing a Timing Function
• The current setting appears in the upper right-hand corner
of the screen. In this example, this is 1 minute.
• The numbers near the left edge of the screen show the
allowable range for this value. In this case, the time can be
set anywhere between 0 seconds (function turned off) and
15 hours.
In this example we will change the time delay to 5 minutes.
• Press the Left- and Right-Arrow buttons to move to the
box you want. In this case, we want to change the middle
box - the box for Minutes.
• Use the Up- and Down-Arrow buttons to change the value
in that box.
• You can change the numbers in the other boxes in the same
way.
• When the new setting is correct, press the round OK
button.
Entering a Password or Name
The system uses a different type of screen to enter a password
or name. If you want to change a setup value or function,
and the system requires a password, you can enter it using the
Login screen. See Fig. 31.
Fig. 31 – Login Screen
There are two ways you can reach this screen:
• From the Info/ Install screen (Fig. 28), select Login.
• If you try to change a function that requires a password,
the unit will automatically bring you to the Password
screen.
The controller for this unit uses three levels of password
protection:
User Level
Some of the settings can be changed or
read by anyone, without a password.
These non-critical adjustments and
functions include setting the Central
Heat and Domestic Hot Water
setpoints, monitoring the input and
output variables, reading parameters
from the controller, and reading the
error log.