Routine Maintenance; Automatic Cleaning Cycle; Step One: Initiate A Flush Cycle - Honeywell TrueSTEAM HM612A1000/U Installation Manual

Routine Maintenance

Steam humidifier automatically flushes the tank throughout the humidifying season. This lowers the water
hardness concentrated in the tank, and slows the accumulation of solid minerals.

Automatic Cleaning Cycle

• The automatic cleaning cycle takes about 45 minutes. During this time, steam humidifier will not produce
any steam.
• Cold water will enter the tank to lower water temperature below 140°F (60°C) before draining.
• At the end of the cycle, steam humidifier refills the tank with fresh water and automatically returns to
normal operation.
Manual Cleaning Cycle
Honeywell recommends that steam humidifier be manually cleaned and the water filter be changed at least
once each humidification season. The manual cleaning is necessary to remove solid mineral deposits left
behind during operation.
STEP ONE: Initiate a Flush Cycle
M29628A
CAUTION: Burn and Scalding Hazard.
Use extreme caution when using the manual drain procedure. The water exiting the Steam
Humidifier may be as hot as 212ºF. Make sure the drain outlet can handle up to 212ºF (100ºC), or
wait at least 45 minutes to allow the water to cool before using this feature.
Steam Humidifier System 69-2285—11
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Solid material deposits in the tank are normal. The
homeowner should expect to see some buildup in the
tank and on the heating element.
• When the Cleaning Required light is on, manual
cleaning is needed. Steam humidifier will still
operate as normal while this light is on.
• Before removing the steam humidifier tank, it must
be completely drained.
To begin draining the tank, press and hold the Drain
button until the Draining light blinks.
Manual Drain Procedure
Press and hold the Drain and Go buttons
simultaneously to interrupt the water cooling cycle and
immediately drain the tank.
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