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Press the ▼ key once.
FAULT HISTORY
9
08/28/2009
Fr 5:19A
Press the ▼ key once.
FAULT HISTORY
10
08/28/2009
Fr 5:19A
Table 25 – Fault History Screens
B. CASCADE MENU
This menu is accessed by pressing the key from the default menu or the key from the status menu.
SCREEN
CASCADE MASTER READY
SYS PUMP OFF
CASCADE NO FOLLOWER
SYS PUMP OFF
CASCADE NO SENSOR
SYS PUMP OFF
CASCADE TT 0123 567
SYS PUMP ON 12:47P
Press the ▼ key once.
CASCADE PWR
100%
PRESENT 01234567
Press the ▼ key once.
CASCADE SYST
118
CASCADE SET
190
Press the ▼ key once.
BOILER 0
100%
BOILER 1
56%
Press the ▼ key once.
BOILER 2
0%
BOILER 3
0%
Press the ▼ key once.
BOILER 4
0%
BOILER 5
0%
Press the ▼ key once.
BOILER 6
0%
BOILER 7
0%
Table 26 – Cascade Menu Screens
C. BOILER TEST MODE
This function is intended to simplify the gas adjustment. Listed in Table 27 are the recommended combustion settings for the gas type
selected to run the boilers. Automatic modulation does not take place when 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 you have the largest load possible to
create a heat demand so the test mode operation will not be interrupted. To enter test mode, press the ▲ and ENTER keys
simultaneously. To exit, press ▲ and ▼ simultaneously.
This screen displays the ninth oldest lockout fault that occurred in the boiler controller. The top line will alternate
between the words 'FAULT HISTORY' and the fault encountered. The bottom line displays the date and time the
fault occurred.
This screen displays the tenth oldest lockout fault that occurred in the boiler controller. The top line will alternate
between the words 'FAULT HISTORY' and the fault encountered. The bottom line displays the date and time the
fault occurred.
This screen tells the user that the boiler is configured as a Cascade Master Boiler and that the cascade system
is ready to accept a demand for heat. The second line indicates the status of the system pump output of the
cascade system. This screen will alternate with the default screen every 5 seconds or it can be accessed by
pressing the key from the default screen.
This screen is displayed when the boiler is configured as a Master Boiler and there are no connected follower
boilers, or the follower boilers are not powered. The second line indicates status of the cascade system pump
output. This screen will alternate with the default screen every 5 seconds or it can be accessed by pressing the
key from the default screen.
This screen is displayed when the boiler is configured as a Master Boiler and there is no system temperature
sensor connected or the system sensor is defective. The cascade system will still function in this situation with
reduced efficiency. All boilers will run simultaneously rather than in a staged fashion. The second line indicates
the status of the system pump output of the cascade system. This screen will alternate with the default screen
every 5 seconds or it can be accessed by pressing the key from the default screen.
Shows information about cascade status. The TT in the center of the top line shows that the cascade demand is
coming from the 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 show on the
display. In the example above, 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 system pump
output contacts.
This screen shows the 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 communicating, the
maximum cascade power is 800%. The second line shows which boiler addresses are communicating with the
Master.
o
F
This screen shows the current system temperature sensor reading on the top line and the cascade system
o
F
temperature setting on the bottom.
This screen shows the current cascade power demand output on a per connected boiler basis for boilers
addressed as 0 and 1. In the screen above, 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%.
This screen shows the current cascade power demand output on a per connected boiler basis for boilers
addressed as 2 and 3.
This screen shows the current cascade power demand output on a per connected boiler basis for boilers
addressed as 4 and 5.
This screen shows the current cascade power demand output on a per connected boiler basis for boilers
addressed as 6 and 7.
DESCRIPTION
72
WHL-016 REV. 12.18.14
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