lp-445-r4 Rev. 006 Rel. 027 Date 7.21.20
46
G. Resetting the Maintenance Schedule
When the system control flashes MAINTENANCE REQUIRED, it is
advisable that you call for service. After the service is performed,
reset the schedule for the next required service by using the
following steps.
Press
ENTER
on the display for 3 seconds. The Menu code will
appear as 000. This does not change. Press
ENTER
again. SERVICE
SCHEDULE RESET will be displayed. Using the
>
key scroll to the
selection of year or hours. Press
ENTER
to reset the selected Service
Schedule. To change a setting, press
ENTER
. Press the
^
and
v
keys
to make adjustments. Press
ENTER
when reset is complete.
Part 11 - Start-Up Procedures for the Installer
A. Boiler Control Status Menu
The boiler control also has the ability to review system status. To access
the status screens, press
>
. Once the first value is displayed, press
^
and
v
to scroll through additional information. At any point press
RESET
to
exit the status screens.
50
32
41
167
158
149
131
122
113
104
77
59
68
86
95
212
203
194
185
176
201˚
SUPPLY OUTLET TEMPERATURE (F)
-24
-59
-41
OUTSIDE TEMPERATURE (F)
-9
9
27
63
45
81
99
FUNCTION 9
FUNCTION 11
FUNCTION 8
FUNCTION 10
0
68˚
5˚
DEFAULT RESET CURVE
CENTRAL HEATING CURVE
Factory Default
50
OUTSIDE TEMPERATURE (F)
-59
32
41
-41
-24
27
9
-9
0
81
45
63
99
Plot your Curve
CENTRAL HEATING CURVE
SUPPLY OUTLET TEMPERATURE (F)
167
104
77
59
68
86
95
131
113
122
149
158
194
176
185
203
212
Table 22 - Heating Curve - NOTE: The user can adjust the heat curve
down by lowering the central heating temperature.
Screen
Description
SUPPLY SEN 180
o
F
RETURN SEN 150
o
F
This is the first screen that appears
after pressing
>
, and shows the actual
temperatures measured by the supply
and return sensors. NOTE: If the boiler
is configured to use a 0 – 10 volt input,
the return sensor is disabled and the
second line of the display will be blank.
Press v once.
CH SET 180
o
F
SUPPLY SEN 122
o
F
The screen displays the current central
heating temperature set point on the
top line. NOTE: This temperature set
point may vary from what was set
in the boiler settings if an outdoor
sensor is used. The actual temperature
measured by the supply sensor is
displayed on the bottom line.
Press v once.
CH DEMAND OFF
BOILER
This screen displays the central heat
demand set for the cascade system.
Press v once.
0-10 SIGNL ON
*
Shows if 0-10 volt is enabled.
Press v once.
This screen appears only when the
boiler is set as a Master Boiler.
CAS SET 190
o
F
SYSTEM 112
o
F
This screen displays the cascade set
point (maximum 190
o
F) on the top
line. The system sensor reading is
on the second line. The control will
cascade the boilers up to this set point
depending on demand.
Press v once.
DHW SET 119
o
F
DHW 117
o
F
Displays the current tank temperature
set point on the top line. The actual
temperature measured by the tank
or return sensor (HTP 7250P-325)
is displayed on the bottom line. If a
mechanical aquastat is used in place of
the recommended sensor, the second
line will display ‘OFF’ in place of the
temperature if the aquastat measures
close to its set temperature, or ‘ON’ if
the aquastat temperature is too low.
Press v once.
OUTDOOR 11
o
F
FLUE 95
o
F
The current outdoor temperature
is displayed on the top line. If there
is no outdoor sensor connected
to the boiler, this line will display
“OFF” in place of the temperature. If
the outdoor sensor is shorted, this
line will display “ON” in place of the
temperature. The second line displays
the current boiler flue temperature.
Press v once.
