PAGE 22 of 84 HU-SOUTHWEST-1480 GAS-FIRED HUMIDAIRE UNIT
© SAMUEL JACKSON, INCORPORATED 2005 ALL RIGHTS RESERVED
ERROR 110
UNSTABLE LINT FLUE SCANNER:
The error is triggered when the lint flue scanner is
not providing a stable signal to the Humidaire Unit. This will occur when the scanner’s
contact turns off three times in less than two minutes. This condition can shorten the life
of the water pump motor and starter (in traditional operation mode) or reduce humid air
output (in enhanced operation mode).
When running in traditional mode, this alarm turns off the water pump and prevents it
from operating until the OK button is pressed to acknowledge the condition. The burner
continues to operate to keep the system warm.
When running in enhanced mode, ERROR 110 will not turn off the water pump and lock
it out (as the control action of enhanced operation inherently protects the water pump
from rapid cycling).
Check the lint flue scanner for proper alignment in the flue. Check adjustment of the
sensitivity and time delay on the scanner. Remove any lint tags near scanner window. Set
the time delay on the scanner to approximately 2-3 seconds. Remember that when
starting a new press, or other machinery that may be troublesome, it is best to leave the
Humidaire Unit off until the other problems are worked out (especially if the Humidaire
Unit is to be run in traditional mode).
ERROR 111
HIGH TEMPERATURE AT SPRAY CHAMBER:
This error will shut the burner down due
to a high temperature condition sensed at the burner duct leading into the spray chamber.
Operating the Humidaire Unit at very low air flows (less than 1,000 CFM) or running the
air temperature above 155
°
F, 68
°
C will cause this error. Verify that the Spray Chamber
High Temperature Switch (SCHT) is set at 350
°
F (177
°
C).
Consult the factory if this error becomes a nuisance. Higher switch temperature settings
are permissible for some applications.
High Temperature Switches
SCHT Spray
Chamber High
Temperature Switch
