LAARS NeoTherm NTV (Sizes 150–285 MBTU/h) - Service Manual - Manual (Page 84)

74 Service Manual NeoTherm 80 - NeoTherm 285
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.
There are two ways you can reach this screen:
• From the Info/ Install screen, select Login.
• If you try to change a function that requires a pass-
word, the unit will prompt you to log in. See Fig.
D5-6.
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.
Installer Level - Settings that might affect the safe opera-
tion of the unit can only be changed by a trained techni-
cian who enters a password. These include setup and
parameter changes made when the system is installed,
and some diagnostic and troubleshooting functions. The
installer level password is “lnt” (lower case “LNT”).
OEM Level - Some of the settings can only be changed
at the Laars factory.
Once you enter a password, the password access
remains valid until you exit to the normal no-password
state. If you do not make any edits for 10 minutes, the
password access will be cancelled.
The areas on the Login display are arranged a bit like a
computer keyboard.
• To enter a letter or number, use the Up-, Down, Left-
and Right-Arrow buttons to highlight the character
you want to use, then press the round OK button.
You will see the character appear in the line at the
top of the screen.
• When the characters in the line at the top of the
screen are correct, move to the OK space at the bot-
tom of the screen, and press the round OK button.
This will send the new “string” of characters to the
controller.
Using the Current User Interface - continued
D5
cont.
Fig. D5-7 – Login screen
Fig. D5-6 – Password required