Laars NTV1000, Installation And Operation Instructions Manual

Page: 40 / 138

LAARS Heating Systems
Page 36
fig. 26 - numeric entry Screen
Anyone can
view
all of the parameters. However,
to
change
most of the parameters, you will need a
password.
In the center of the screen shown in Fig. 27, the
system is telling you that it wants you to log in.
fig. 27 - login required
The screen used to Login is similar to the Keyboard
screen shown in Fig. 25.
8.3 While operating - Checking
lead/lag operating Information
The Lead/Lag function controls the operation of all
of the boilers connected to the system, and some
system components. For a complete explanation of
Lead/Lag, see the beginning of Section 9.
In this section, we will explain how to check the
Lead/Lag information while the system is running.
1. From the Home screen (Fig. 28), press the
View Lead Lag button.
fig. 28 - Home Screen
Up to 8 controllers, or up to 4 boilers, can be
displayed on the Home page. The icon for
each system will appear in one of four colors:
Blue Normal operation
Red Lockout
Gray Standby mode
(Burner switch off)
Gray and
crossed out
Communication
problem
Yellow Hold state. This
could be Anti short
cycle, fan speed
transitions, etc.