PAGE 43 of 84 HU-SOUTHWEST-1480 GAS-FIRED HUMIDAIRE UNIT
© SAMUEL JACKSON, INCORPORATED 2005 ALL RIGHTS RESERVED
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PUMP RUN TIMERS: Pump off delay and warm up time are set here. The units
are in seconds. Default settings are 10 seconds for off delay and 90 seconds for
warm-up time. Off delay is the time after cotton flow signal is lost before action
will be taken to curtail production of moist air. Warm up time is the time after
flame is established before the water pump is enabled to run. This time gives the
piping and applicator time to warm up before the water pump comes on. Even
after the pump comes on, it will take a few minutes before the air and water
temperatures are at their setpoints.
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PURGE TIMER: Pressing this button activates a screen for enabling/disabling the
purge system and setting the purge cycle and period times. It is recommended to
disable the purge system while descaling the unit with acid. The default for cycle
time is 30 seconds and for cycle period is 8 seconds. This means that the WPV
will open for 8 seconds out of every 30 seconds while the water pump is running.
TIPS
With the unit off, periodically open the water spray chamber doors and observe the
amount of scaling occurring. It may be necessary to adjust the cycle period to a greater
time to keep the Humidaire cleaner. The more water that is purged, the harder the
Humidaire has to work to heat the water thus increasing gas usage and perhaps hurting
performance. Consult the factory if severe scaling continues to occur.
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FLUSH VALVE SETUP: Pressing this button activates a screen for
enabling/disabling the flush valve timer for cleaning the sediment tank (SED) of
the hydro-cyclone (HYD) and setting the flush cycle and period times. The
default for cycle time is 1500 seconds and for cycle period is 10 seconds. This
means that the flush valve (FV) will open for 10 seconds out of every 1500
seconds (25 minutes) while the water pump is running.
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AUTOMATIC SHUTDOWN TIMER: Some countries require that gas-fired
combustion products turn off once every 24 hours as a safety measure. This
feature is used to activate an automatic 24-hour shutdown. If enabled, every day
at a user specified time, the Humidaire Unit will automatically shut down and
ERROR 131 will be shown.
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SCREEN CLEAN TIME: Pressing the CLEAN SCREEN button changes the
color touch panel (TP) screen display so the screen buttons are not active to allow
cleaning the screen. Spray a gentle cleaner onto a soft cloth and gently wipe the
color touch panel (TP). The time that the screen remains in the clean screen mode
with the buttons inactive is the TIME setting shown in seconds. This time is
adjustable.
