LP-314 Rev. 012 Rel. 003 Date 9.27.19
37
D. Using the Control to Assist in Purging System Loops
Before powering up the control assure the thermostat
connection is disconnected on the field connection board. Apply
power to the appliance (Note: The appliance will fire the burner
and heat the water inside the storage tank to the domestic hot
water temperature set point). Press
>
. The display can show the
temperature set point of the appliance. Press the
v
and ENTER
keys simultaneously and hold for 1 second. The display will read:
The central heating pump will come on. Run pump until all the
air has been purged through each circuit. If you press the
^ v
keys simultaneously, the central heating pump will shut off. The
display will read:
Once the system has been purged of air, the installer can now
proceed to program the control and system design parameters.
SERVICE PUMP CH
PUMP ON TIME
READY
PUMP OFF 12:42
is present. Close the zone isolation valves and proceed with the
next zone. Follow this procedure until all zones are purged.
7. Close the quick-fill valve and purge valve and remove the
hose. Open all isolation valves. Watch the system pressure rise
to correct cold-fill pressure. It is recommended that you put the
pumps into manual operation to assist in purging the circuits.
E. Programming the Total System Control
Before programming the Total System Control to the specific
needs of the system, verify that the system is ready for operation.
Be certain that:
• The Domestic Hot Water system is filled with water that
meets the qualifications and all air is purged.
• The mixing valve supplied is properly installed.
• The Hydronic Heating System is filled with water and
meets all qualifications and all air is purged.
• The outdoor reset sensor is installed in a proper location.
• The electrical power supply is installed by a licensed
professional.
• Turn down thermostats, making sure that they are set so
there is no call for heat while programming.
This following discusses how to program a few of the major
sections of the control parameters for optimum system
performance. See Start-Up Procedures for the Installer for
more detailed information on the operation of the display
and other parameters.
1. Turn on the main power switch on the top right of the burner
cabinet. NOTE: At first startup, the water in the tank is cold and
the burner will ignite. This is normal operation. You can continue
to adjust settings while the burner is running.
2. Press and hold
ENTER
for 4 seconds until you see the screen to
enter the log in access code shown below.
3. Use the
<
key to move the blinking zero to the left most zero.
Next, use
^
and
v
to log in 600, the access code. Press
ENTER
confirm the code and access Appliance Setting Program
Navigation menu.
4. Once the code is confirmed, you can begin to set the Appliance
Settings. Use the arrow keys to navigate. To change a setting,
press
ENTER
. Appliance settings can be increased by pressing
^
and decreased by pressing
v
on the display. Once a new value
has been selected, press
ENTER
to store the new value.
5. The first screen is the “Central Heating” value. Enter the value
for your designed hydronic heating supply temperature. The
ENTER MENU CODE
000
factory default is 140
o
F. NOTE: Values are determined based on
program settings.
6. After you have entered and stored the “Central Heating” value, press
>
once. The second screen adjusts the heating system “Heating Delta
T” value. The factory default is 20
o
F.
7. After you have entered and stored the “Heating Delta T” value, press
>
once. The third screen adjusts the “DHW Set Point”. Adjust the value
to the desired Domestic Hot Water temperature. The factory default is
119
o
F. IMPORTANT NOTE: This value sets the tank temperature when
the appliance is in warm weather shutdown. A mixing valve must
be properly installed and adjusted to a proper outlet value for safe
operation.
8. After you have entered and stored the “DHW Set Point” value, press
RESET
to return to the home screen on the display. This completes the
essential programming in Appliance Setting Programs. If other values
need to be changed in this section, such as the display time, refer to
Control Overview, this manual.
9. A proper outdoor reset curve should be set to further optimize
system performance and efficiency. The following chart shows how
each function will affect system performance. The values in the chart
show the system default.
10. Press and hold
ENTER
for 4 seconds until you see the Enter Menu
Code screen.
11. Use the
<
and
>
arrow keys to move the blinking zero to the left and
right. Next, use the
^
and
v
arrow keys on to log in the access code of
925. Press
ENTER
to access the
System Setting Program Navigation
menu. Once the code is confirmed, you can set the
System Settings
.
Use
<
and
>
to navigate through the
System Setting Program
.
12. Press
>
3 times to scroll to Function 4 - “WARM WEATHER OFF”. This
is the warm weather shutdown. This function determines the outdoor
temperature that will turn off the hydronic heating module and
operate the appliance only as an appliance for the warmer weather. To
adjust this value, press
ENTER
and the factory default of 68°F starts to
blink. Use
^
and
v
to adjust this value to your system needs. To store
the new value press
ENTER
.
13. Next, press
>
once to scroll to Function 5 - “MIN OUTDOOR TEMP”.
This function is the first step to setting the outdoor reset curve. Enter
your system’s minimum outdoor temperature value. To adjust the
value, press
ENTER
and the factory default of 5°F starts to blink. Use
^
and
v
to adjust to your designed temperature. To store the new value
press
ENTER
.
14. Press
>
once to scroll to Function 6 - “MAX SUPPLY TEMP”. This
function is the second step to setting your outdoor reset curve. Enter
your system’s hydronic heating module maximum supply temperature
value. To adjust the value, press
ENTER
and the factory default of 140°F
will start to blink. Use
^
and
v
to adjust to your designed temperature.
To store the new value press
ENTER
.
NOTE
: This should be the same value entered in step 5.
15. Press
>
once to scroll to Function 7 - “MAX OUTDOOR TEMP”. This
function is the third step to setting your outdoor reset curve. Enter
your system’s maximum outdoor temperature value. To adjust the
value, press
ENTER
and the factory default of 68°F will start to blink.
Use
^
and
v
to adjust to your designed temperature. To store the new
value press
ENTER
.
16. Press
>
once to scroll to Function 8 - “MIN SUPPLY TEMP”. This
function is the final step to setting your outdoor reset curve. Enter
your system’s hydronic heating module minimum supply temperature
value. To adjust the value, press
ENTER
and the factory default of 120°F
CENTRAL HEATING
140
o
F
HEATING DELTA T
20
o
F
DHW SETPOINT
119
o
F