lp-441 Rev. 002 Rel. 008 Date 8.23.18
31
Part 9 - Controls
A. Control and Display Overview
3 Digit Display
Temp in Fahrenheit (F)
or Celsius (C)
Burner Power Indicator
Economy Mode
Test Mode or
Time for Service
DHW Mode
Warning Icon
Reset Icon
Outdoor Reset Curve
1
2
4
3
5
6
7
Detailed Description of Button Functions
1. Adjust Setting Down
2. Adjust Setting Up
3. Decreases the User Setpoint
4. Increases the User Setpoint
5. ECO Mode
6. RESET
7. OFF / Mode Enable
Detailed Description of Control Functions
Figure 22 - Control Detail
Modes of Operation
Mode
Screenshot
Description
Range (Default)
Off
The water heater will ignore heat demands while in Off Mode.
To put the water heater in Off Mode, press
.
Off / On (Off)
Stand-By
In Stand-By Mode, the fan is off, the gas valve is closed and the water inlet
shut-off valve is opened. The water heater goes into Stand-By Mode when it
is powered but not firing.
On Winter / On
Summer / Off (Off)
User Setpoint
The User Setpoint is used to set the temperature for the water heater.
Press either
or
once to change the User Setpoint. The normal
operation screen will clear and be replaced by a flashing number. This is the
User Setpoint.
Press
to decrease or
to increase the User Setpoint in increments
of two degrees. After choosing the setpoint, wait five seconds. The screen
will return to normal operation and the setpoint will be stored.
70 - 160 (120)
Outdoor Reset Curve
Enabling Outdoor Reset Curve allows the user to set additional parameters
to increase water heater efficiency.
An Outdoor Sensor is required to set Outdoor Reset Curve.
See Advanced Control Functions to set the Outdoor Reset Curve.
0 = Enabled, 1 =
Disabled (0)
ECO
Putting the water heater into ECO Mode reduces the maximum firing rate to
80% of the rated maximum firing rate. This increases water heater efficiency
in times of low water heater demand.
Press
to put the water heater into ECO Mode. Press again to return to
normal operation.
ECO On / Off (Off)
Test
Test Mode allows the installer to test water heater operation by running the
fan at different speeds. To enter Test Mode, press
and
together
for 5 seconds.
Push
to decrease or push
to increase fan speed by 50 RPM
increments. Push
to operate at maximum fan speed. Push
to
operate at minimum fan speed.
Test Mode will exit automatically after 15 minutes. Press
to leave Test
Mode manually.
Test Mode On / Off
(Off)
Lockout Fault Codes
Lockout codes refer to a temporary condition that must be cleared to
resume operation. If code persists, the heater should be serviced by a
qualified service technician.
Press
to clear
the code. Observe
operation to ensure
code does not reoccur.
