lp-505 Rev. 000 Rel. 015 Date 1.7.20
48
Part 9 - Controls
A. Control and Display Overviews
Figure 46 - Control Panel Detail
Figure 47 - LCD Display
B. Start-Up Sequence
After the appliance is powered ON, the LCD display shows a sequence
of information. The icons will ash, followed by various indicators that
describe the appliance controller and software versions. It will take the
appliance roughly 15 seconds to cycle through the Start-Up Sequence.
Display Items Time for Display Remarks
LCD Test
1 sec All segments “ON”
0.5 sec All segments “OFF”
Category
Tankless Water Heater
1 sec Pdn
1 sec 0061
Software Version for
Front Panel
1 sec SPn
1 sec 00.xx
Software Version for
Water Heater
1 sec SFn
1 sec xx.xx
Hardware Version for
Water Heater
1 sec Hdn
1 sec 00xx
Table 28 - Start-Up Sequence
LCD also features a backlit lamp that will illuminate:
• When a user action is detected (a button is pressed)
• The display has timed out for approximately 2 minutes
After start-up, the display appears as follows.
Figure 48 - Initial Display Screen
The Control System can operate through user and service modes
that have specic LCD outputs and dedicated controls, including:
• Changing the DHW Set-Point Temperature
• Status Display
• Installer Mode
• Error Mode
• High Elevation Mode
• Cascade Mode
• High Temperature Mode
NOTE: The Control System will not allow changes if Lock Mode is
activated. Press and hold the button is pressed for ve seconds
to unlock the control.
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