lp-672 Rev. 000 Rel. 002 Date 10.3.18
40
C. 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 the setpoint.
The display shows the
icon when the DHW set-point can be
changed.
Figure 46 - DHW Set-Point Screen
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).
Turn the dial
counterclockwise to lower and clockwise to raise
the DHW set-point. After changing the temperature, press the
button to save the set-point.
To change the DHW Set-Point above 121
o
F (49.5
o
C) press, then press
and hold the
button when the display panel is powered ON.
The DHW icon and current set-point will display and flash. Then
press and hold the
button for five seconds. The scald warning
symbol “
” (high temperature) will display. High temperature
DHW Set-Point range is 121 – 140
o
F (49.5 – 60
o
C).
To change the DHW Set-Point above 140
o
F (60
o
C), go into the
Installer Mode. Advance to parameter 21:rE and change the setting
from rE to Co. Then leave Installer Mode. Press the
button. The
current DHW set-point will display. The temperature range is now
95 – 160
o
F (35 – 71.1
o
C).
Turn the dial
counterclockwise to lower and clockwise to raise
the DHW set-point. After changing the temperature, press the
button to save the set-point.
Hotter water increases the risk of scald injury. Scalding may occur
within 5 seconds at a setting of 140
o
F (60
o
C). Water temperature
over 125
o
F can instantly cause severe burns, or death, from scalds.
Children, disabled, and elderly are at the highest risk of being
scalded. See instruction manual before setting temperature at
appliance. Feel water before bathing or showering!
D. Changing the Time
Press and hold the
button for five seconds when the display
panel is powered ON to change the time. The settings can be
adjusted as follows: Year / Month / Date / Hour / Minute / Day of
Week.
Figure 47 - Changing the Time Screen
Turn the dial
counterclockwise to lower and clockwise to raise
the current time setting. After changing the setting, press the
button to save it. The next adjustable setting will appear. After the
time and date have been set, press the
button to save and
return to the main screen.
NOTE:
After a DHW demand has been met, the pump will run for
a set period of time to normalize heat exchanger temperature and
prevent scale build-up.
To turn on Lock Function, press the
button at the P:Lc parameter
when scrolling through the Status Display screens. Turn the dial
counterclockwise to lower and clockwise to turn Lock Function
On or Off. Press the
button to return to normal operation.
NOTE:
The control system will not allow changes if Lock Function
is activated. Lock Function will have to be turned off before making
further changes.
E. Lock Function
