HTP EL-399NVWH - Manual (Page 62)

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LP- 346 REV. 3.20.14
Press the ▼ key once.
FAULT HISTORY 4
08/28/2009 Fr 5:19A
This screen displays the fourth oldest lockout fault that occurred in the heater 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.
Press the ▼ key once.
FAULT HISTORY 5
08/28/2009 Fr 5:19A
This screen displays the fifth oldest lockout fault that occurred in the heater 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.
Press the ▼ key once.
FAULT HISTORY 6
08/28/2009 Fr 5:19A
This screen displays the sixth oldest lockout fault that occurred in the heater 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.
Press the ▼ key once.
FAULT HISTORY 7
08/28/2009 Fr 5:19A
This screen displays the seventh oldest lockout fault that occurred in the heater 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.
Press the ▼ key once.
FAULT HISTORY 8
08/28/2009 Fr 5:19A
This screen displays the eighth oldest lockout fault that occurred in the heater 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.
Press the ▼ key once.
FAULT HISTORY 9
08/28/2009 Fr 5:19A
This screen displays the ninth oldest lockout fault that occurred in the heater 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.
Press the ▼ key once.
FAULT HISTORY 10
08/28/2009 Fr 5:19A
This screen displays the tenth oldest lockout fault that occurred in the heater 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.
Table 24 – Heater Fault Screens
B. CASCADE MENU
This menu is accessed by pressing the  key from the default menu or the  key from the status menu.
SCREEN DESCRIPTION
CASCADE MASTER READY
SYS PUMP OFF
This screen tells the user that the heater is configured as a Cascade Master Heater 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.
CASCADE NO FOLLOWER
SYS PUMP OFF
This screen is displayed when the heater is configured as a Master Heater and there are no connected
follower heaters, or the follower heaters 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.
CASCADE NO SENSOR
SYS PUMP OFF
This screen is displayed when the heater is configured as a Master Heater 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 heaters 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.
CASCADE VWH 0123 567
SYS PUMP ON 12:47P
This screen shows information about cascade status. The VWH in the center of the top line shows that the
cascade demand is coming from the tank sensor or thermostat. You may also see 0-10 if the demand is from
a 0-10 volt input. The following numbers show which heater addresses are currently communicating to the
master. If a heater address is not used or communicating, the number will not show on the display. In the
example above, heater address #4 is not communicating. When a heater in the system is firing, its address
number will alte
rnate with a ‘.’ to signify it is firing. The bottom line shows the status of the system pump
output contacts.
Press the ▼ key once.
CASCADE PWR 100%
PRESENT 01234567
This screen shows the overall cascade power output. The range of this value is the number of heaters
communicating with the Master x 100. For example, if 8 heaters are connected and communicating, the
maximum cascade power is 800%. The second line shows which heater addresses are communicating with
the Master.
Press the ▼ key once.
CASCADE SYST 118
o
F
CASCADE SET 190
o
F
This screen shows the current system temperature sensor reading on the top line and the cascade system
temperature setting on the bottom.
Press the ▼ key once.
HEATER 0 100%
HEATER 1 56%
This screen shows the current cascade power demand output on a per connected heater basis for heaters
addressed as 0 and 1. In the screen above, heater 0 is being commanded to fire at 100% and heater 1 at
56%. If this were a 2 heater system, the ‘CASCADE PWR’ screen above would read 156%.