Westinghouse WBCETNG1000, Руководство пользователя, Страница: 51 / 74

WHL-038 Rev. 1.29.16
51
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.
Table 24 - Cascade Menu
C. Boiler Test Mode
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.
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
Table 22 - Combustion Settings - All Models
Fan Speeds
Model Ignition Min Max
750 3800 3600 5200
1000 4100 3950 6400
Table 23 - 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
Press v once.
BOILER 8 N/A
BOILER 9 N/A
This screen is not applicable.
Press v once.
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.