Part 9 - Controls; Control And Display Overviews; Start-Up Sequence - Westinghouse Premium WGRT 199 Series Installation, Start-Up, Maintenance, Parts, Warranty

Part 9 - Controls

A. Control and Display Overviews
Figure 47 - Control Panel Detail
Figure 48 - LCD Display
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
B. Start-Up Sequence
After the appliance is powered ON, the LCD display shows a sequence
of information. The icons will flash, 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
LCD Test
Category
Tankless Water Heater
Software Version for
Front Panel
Software Version for
Water Heater
Hardware Version for
Water Heater
Table 28 - Start-Up Sequence
Remarks
1 sec All segments "ON"
0.5 sec All segments "OFF"
1 sec Pdn
1 sec 0061
1 sec SPn
1 sec 00.xx
1 sec SFn
1 sec xx.xx
1 sec Hdn
1 sec 00xx
After start-up, the display appears as follows.
Figure 49 - Initial Display Screen
The Control System can operate through user and service modes
that have specific 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
to unlock the control.
whl-004 Rev. 000 Rel. 013 Date 5.1.18
button is pressed for five seconds
49