Tx I&O Manual │Display Menu Guide
Figure 17-7 Blocking Error Navigation
Fill – Low Water Pressure
The Tx boiler is equipped with a water pressure sensor located in the return piping inside the boiler cabinet, see
Figure 19-1(e), item 24 for sensor location; the reading from the sensor is displayed on the Main Screen, see
Figure 17-2. If the control senses a pressure below 7 PSI, burner operation is inhibited and “FILL” is displayed
on the screen, see Figure 17-8. As long as the water pressure is above 3 PSI the circulators will be permitted to
operate; otherwise they are only operated 5 seconds every minute.
Figure 17-8 Fill – Low Water Pressure
Err – indicates the
boiler has a blocking
error.
Error code - see Table
17-3 for description.
User Menu – press the
UP or Down button to
view boiler parameters.
Installer Menu – press
and hold MENU and
OK buttons to view
settings.
FILL – indicates the
water pressure is too
low.
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