46
WHL-060 REV. 1.6.16
Display Items
Time for Display
Remarks
LCD Test
1 Sec
All segm
ents “ON”
0.5 Sec
All segments “OFF”
Category: RGH-199
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 23
– Start-Up Sequence
After start-up, the display appears as follows.
Figure 39
– 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
Changing Time
Error Mode
Status Display Mode
Installer Mode
High Elevation Mode
NOTE:
The Control System will not allow changes if Lock Mode is activated unless the B button is pressed for more than 5 seconds.
D. CHANGING THE DHW SET-POINT
NOTE:
The setpoint cannot be changed if water is flowing through the unit. Ensure there is no demand on the water heater when
changing setpoint.
The display shows the
icon when the DHW set-point can be changed.
Figure 40
– DHW Set-Point Screens
Press the
button when the display panel is powered ON to change the DHW Set-Point. The DHW icon and current set-point will
display and flash. This indicates that the DHW Set-Point can be changed. Factory DHW Set-Point is 125
o
F (51
o
C). Initial DHW Set-
Point range is 100
– 120
o
F (38
– 49
o
C).
