lp-441 Rev. 004 Rel. 000 Date 7.2.21
40
2. Technical Service and Navigation
The Technical Service Menu (
) is the initial menu to appear when entering Installer Mode. Technical Service Parameters allow the installer
to fully customize water heater settings to the system.
To enter Installer Mode, press and hold
for five seconds. When the
screen appears Installer Mode is active. Press
at this screen
to access the Technical Service Parameter codes (P00, P01, etc.)
Press
to advance through the parameters. Press
to return to the previous parameter. To change parameter value, press
or
once. The value will appear. Press
to decrease or
to increase the value. Press
at this screen to accept the changed value and
return to the Technical Services Parameters.
Press
at any Technical Services Parameter code screens to return to the upper level menu. The following table details the Technical
Service Parameters in sequential order.
Code
Short Description
Long Description
Range (Default)
P00
User Setpoint (
o
F)
Minimum Tank Temperature
70-160
(120)
P01
Temperature Differential (
o
C/
o
F)
Difference Between Actual Tank Temperature and User Setpoint
that will Initiate Demand
4-20
(8)
P02
Maximum Power Percentage (0%)
Maximum Combustion System Power
50-100
(80)
P03
Temperature Unit Displayed
Fahrenheit or Celsius
0 =
o
C / 1 =
o
F
(1)
P04
ECO Mode
Economy Mode
0 = Off / 1 = On
(0)
P05
Outdoor Reset Curve
Turns on the Outdoor Reset Curve
NOTE:
The following parameters are applicable only if the Outdoor
Reset Curve is turned on.
0 = Off / 1 = On
(0)
P06
Minimum Outdoor Temperature (
o
C/
o
F)
Minimum outdoor design conditions for reset curve
10-70
(10)
P07
Maximum Outdoor Temperature (
o
C/
o
F)
Maximum outdoor design conditions for reset curve
10-70
(68)
P08
Minimum Storage Temperature (
o
C/
o
F)
Minimum tank temperature for reset curve
70-160
(120)
P09
Maximum Storage Temperature (
o
C/
o
F)
Maximum tank temperature for reset curve
70-160
(140)
P10
Warm Weather Shutdown Temperature (
o
C/
o
F)
Outdoor temperatures greater than this value return the tank
target temperature to the User Setpoint
50-100
(68)
Table 18 - Technical Service Parameters - NOTE: Temperature Readings Depend on Temperature Unit Selection
Figure 28 - Outdoor Reset Curve
D. Outdoor Reset
This unit is supplied with outdoor reset wire connection
terminals.
When an outdoor sensor (p/n 7250P-319) is
connected, operation of the unit immediately changes.
Refer to the following steps to properly set up the unit with
an outdoor sensor.
An ASSE 1017 thermostatic mixing valve MUST be
installed when using outdoor reset. Failure to do so could
result in substantial property damage, severe personal
injury, or death.
1. Connect the outdoor sensor to the terminals marked
“outdoor”.
2. Press
at this screen to access the Technical Service
Parameters codes (P00, P01, etc.).
3. Press
to advance through the parameters. Press
to
return to the previous parameter.
4. Go to P06.
5. Enter desired MIN Outdoor Temp value.
6. Press
to advance to the next parameter.
7. To change parameter value, press
or
once. The value
will appear. Press
to decrease or
to increase the value. 8.
Enter desired MAX Outdoor Temp value
9. Press
to advance to the next parameter.
10. Enter desired MIN Storage Temp value
11. Press
to advance to the next parameter.
12. Enter desired MAX Storage Temp value
13. Press
at this screen to accept the changed value and return
to the Installer Parameters.
14. Press
at any Installer Parameter code screens to return to the
upper level menu.
1. Inquiry Mode and Navigation
Inquiry Mode (
) allows the installer to access water heater operating
specifics, including temperature sensor and flame sensor readings.
These readings aid the installer in troubleshooting the water heater.
To enter Installer Mode, press and hold
for five seconds. When
the
screen appears Installer Mode is active. Press
once to
reach Inquiry Mode. The control is ready to access the Inquiry Mode
when the
screen appears on the display.
