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As HumidiClean continues to produce steam, the unit will accumulate and memorize the heating
element active time for the purpose of defining a drain cycle and service life (this memory is not affected
by power outages). When the HumidiClean heating elements have been on for the dip switch drain
frequency setting, the unit activates the drain and fill solenoids and begins draining the tank. The tank
will drain with the water being tempered (HC4100/4145/4300 only) from an activated water fill solenoid.
The drainage from the tank will pass the low water switch, opening the switch and shutting off power to
the heating elements. The drainage from the tank (HC-4100/4145/4300 only) should not exceed 160°F
(71°C) (HC-4500 212°F [100°C]). The drain cycle is controlled by the printed circuit board. The drain
cycle can be modified. See DIP Switch Settings Section. Once the unit has timed out of the drain cycle
and all of the switches are still in position to generate steam, the water fill solenoid switch is activated to
fill the tank and the cycle starts over again.
Completing a Service Life Cycle
When 90% of the selected service time has accumulated, the “Service Life” LED on the control
panel will begin to flash. (Refer to dip switch settings, for bed life duration settings). If the
HumidiClean is not serviced at this time, the unit will continue to operate for the remaining 10% of
the service life setting. When 100% of the bed life setting has been reached, the “Service Life”
LED will be on constant. The unit will drain the tank and not respond to a call for humidity.
A. Servicing the Unit
1)
Record Current DIP Switch Settings
2)
Accessing the Tank
a)
Drain tank by flipping steam generation switch from “ON” to the “STEAM OFF &
TANK DRAIN” position.
b)
Once the tank is drained, shut power off to unit and allow the tank to cool.
c)
Open the cabinet access doors, and slowly open tank access panel.
3) Ionic Bed Inspection
Remove and inspect one of the ionic beds and inspect the drain screen at the bottom
of the tank. If it does not appear to be saturated with mineral deposit (a full bed will
weigh 2.5 pounds dry) and if the drain screen is clear, you have two options.
a)
Reset the existing service life counter. In which case the unit will need to be
thoroughly checked at the next service life. To reset the service life: hold the
“RESET” button in (to the left) for 20 seconds until the front panel LED’s
illuminate than all go off (except the power LED). Proceed with Step 4.
b)
Change the service life settings (see bed life adjustment procedure at the end
of this document).
4)
Ionic Bed Replacement
If the beds are saturated (a full bed will weigh 2.5 pounds dry) remove all of them.
Remove any large pieces of scale from the tank. Scraping the tank is advised.
a)
Chemically clean the unit with Rite-Qwik.
i)
Pour one gallon of Rite-Qwik into tank followed by one gallon of fresh water.
The HC-4500 model requires 2 gallons of Rite-Qwik and 2 gallons of water.
