8
About the Water Heater
b
a
g
h
i
c
d
e
f
j
k
l
2.3 The Front Panel
The front panel allows you to adjust the water
temperature and view the operating status or error
codes. Remove the protective sheet from the front
panel before using it.
a
Recirculation/
Space Heating
Displays recirculation
(Always On/Intelligent/
Weekly/HotButton) and
space heating (with
optional H2Air kit) status.
b
Combustion/Error
Displays combustion/
error status.
c
Gas
Displays when the unit is
configured for propane
gas.
d
Main/Sub
Displays whether the
water heater is a main
or a sub unit of the
cascade system.
e
Status/Flow
Displays the operation
status (including Stand-
by) and current flow rate.
f
Hot Water
Temperature Setting
Displays the hot water
temperature setting.
g
Menu button
Access to the Main menu
screen.
h
Back button
Access to the previous
screen.
i
OK button
Access to the selected
item.
j
Up button
Increases the
temperature setting,
parameter or moves up.
k
Down button
Decreases the
temperature setting,
parameter or moves
down.
l
Power button
Turns the water heater
on or off.
Summary of Contents for NPE-180A2
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