
LP-517 Rev. 000 Rel. 019 Date 7.21.20
48
CASCADE TT 0123 567
SYS PUMP ON 12:47P
This screen displays information about
cascade status. The TT in the center of the
top line shows that cascade demand is
coming from TT contact being closed. You
may also see DHW if the demand is from a
DHW sensor, or 0-10 if the demand is from
a 0-10 volt input. The following numbers
show which boiler addresses are currently
communicating to the master. If a boiler
address is not used or communicating,
the number will not display. In the
example to the left, boiler address #4 is
not communicating. When a boiler in the
system is firing, its address number will
alternate with a ‘.’ to signify it is firing. The
bottom line shows the status of the system
pump output contacts.
Press v once.
CASCADE PWR 100%
PRESENT 01234567
This screen displays overall cascade power
output. The range of this value is the
number of boilers communicating with
the Master x 100. For example, if 8 boilers
are connected and firing, the maximum
cascade power is 800%. The second
line shows which boiler addresses are
communicating with the Master.
Press v once.
CASCADE SYST 118
o
F
CASCADE SET 190
o
F
This screen displays current system
temperature sensor reading on the top
line and the cascade system temperature
setting on the bottom.
Press v once.
BOILER 0 100%
BOILER 1 56%
This screen displays the current cascade
power demand output on a per connected
boiler basis for boilers addressed as 0
and 1. In the example, boiler 0 is being
commanded to fire at 100% and boiler 1
at 56%. If this were a 2 boiler system, the
‘CASCADE PWR’ screen above would read
156%.
Press v once.
BOILER 2 0%
BOILER 3 0%
This screen displays the current cascade
power demand output on a per connected
boiler basis for boilers addressed as 2 and
3.
Press v once.
BOILER 4 0%
BOILER 5 0%
This screen displays the current cascade
power demand output on a per connected
boiler basis for boilers addressed as 4 and
5.
Press v once.
BOILER 6 0%
BOILER 7 0%
This screen displays the current cascade
power demand output on a per connected
boiler basis for boilers addressed as 6 and
7.
Press v once.
BOILER 8 N/A
BOILER 9 N/A This screen is not applicable.
Press v once.
Table 26 - Cascade Menu
C. Boiler Test Mode
Table 24 - Combustion Settings - All Models
Fan Speeds
Model
Ignition
Min
Max
750
3800
3600
5200
1000
4100
3950
6400
Table 25 - Fan Speeds
Part 12 - Troubleshooting
A. Boiler Error and Fault Codes
If any of the sensors detect an abnormal condition, or an internal
component fails during the operation of the boiler, the display may
show an error message and error code. This message and code may
be the result of a temporary condition, in which case the display will
revert to its normal readout when the condition is corrected, or it
may be a condition that the controller has evaluated as not safe to
restart the boiler. In this case, the boiler control will be locked out,
the red FAULT light will be lit, and the message “LOCKOUT” will be
displayed on the readout in the lower line.
The boiler will not start until a qualified technician has repaired the
boiler and pressed the RESET button for more than 1 second. If there
BOILER A10 N/A
BOILER B11 N/A This screen is not applicable.
Press v once.
BOILER C12 N/A
BOILER D13 N/A This screen is not applicable.
Press v once.
BOILER E14 N/A
BOILER F15 N/A This screen is not applicable.
This function is intended to simplify gas adjustment. The following
tables include recommended combustion settings by fuel type and
boiler fan speeds. Automatic modulation does not take place while
the controller is in Test Mode. However, the boilers will modulate
down if the program set point is reached while running in Test
Mode. It is recommended to enter Test Mode with the largest load
possible to create such a heat demand that Test Mode will not be
interrupted. To enter Test Mode press
^
and
ENTER
simultaneously.
NOTE:
The boiler will automatically exit Test Mode after 20 minutes
of operation.
Press
^
to increase and v to decrease fan speed ten (10) RPM. Press
^
and ENTER simultaneously to go directly to max fan speed. Press v
and ENTER simultaneously to go directly to min fan speed.
To leave Test Mode press
^
and
v
simultaneously.
SERVICE RUN 3400 RPM
PUMP ON 4:49P
Combustion Settings on All Models
Fan Speed
Natural Gas (NG)
Low
Ignition
High
Carbon
Monoxide
(CO) PPM
0-10
0-30
Carbon Dioxide
(CO2) %
7 1/2 - 8 1/2
8 1/2 - 9 1/2