TrueSTEAMTM
Homeowner’s Operating Manual
Must be installed by a trained, experienced technician
Read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition.
69-2035EFS-05
Table of contents |
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About your new humidifier |
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TrueSTEAM controls................................................................................................ |
1 |
Maintaining ideal humidity...................................................................................... |
2 |
TrueSTEAM function and operation........................................................................ |
3 |
Setting the controls................................................................................................. |
4 |
Maintenance and operation |
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LED light indicators................................................................................................. |
5 |
Cleaning and maintenance...................................................................................... |
6 |
Seasonal or vacation maintenance......................................................................... |
8 |
Troubleshooting and repair |
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Homeowner troubleshooting................................................................................... |
9 |
Limited warranty.................................................................................................... |
10 |
Need Help?
For assistance with this product please visit http://yourhome.honeywell.com or call Honeywell Customer Care toll-free at 1-800-468-1502
Read and save these instructions.
® U.S. Registered Trademark. Patents pending.
Copyright © 2007 Honeywell International Inc. All rights reserved.
TrueSTEAM Direct-Injection Humidifier
About your new humidifierthermostat
Congratulations on your new humidifier. Your Honeywell TrueSTEAM direct-injection humidifier provides the high performance and efficiency of steam humidification with easier maintenance than traditional humidifiers.
Benefits
•Actually controls your equipment for maintaining desirable humidity levels in your home year-round.
•Requires less water, reducing usage up to 70% when compared to flow-through humidifiers.
TrueSTEAM comes with one of the following control packages:
VisionPRO IAQ Total Comfort System YTH9421C1002
•Controls both temperature and TrueSTEAM.
•Sensor for displaying outdoor temperature.
•Intuitive user interface for easy 7-day temperature programming.
•Easy-to-read backlit digital display.
•Maintenance and service reminders.
•Controls other air quality equipment when you’re ready.
TrueIAQ Digital Control DG115EZIAQ
•Automatic adjustments maintain ideal humidity.
•Sensor for displaying outdoor temperature and humidity.
•Shows actual humidity and desired setting.
•Maintenance and service reminders.
•Controls other air quality equipment when you’re ready.
Manual Control H8908ASPST
•Manual control with intuitive comfort settings.
•Integrated humidity chart for accurate control in changing conditions.
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69-2035EFS—05 |
Operating Manual
Maintaining ideal humidity
Optimal Relative Humidity (RH) is defined by industry experts* as between 40-60% RH on an average annual basis, and 35% during the heating season in dry climates. An environment with too little humidity leaves the body vulnerable to viruses and bacteria, and can cause woodwork in the house to shrink and crack. On the other hand, too much humidity creates ideal conditions for mold and mildew growth.
Proper indoor humidity can also help you save money on energy bills. When maintained properly, your equipment won’t have to run as much because humidified air feels warmer in the winter.
ASHRAE recommeded winter design level |
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OPTIMUM |
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ZONE |
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Bacteria |
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Viruses |
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Fungi |
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Mites |
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Respiratory |
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Infections |
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Allergic Rhinitis |
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and Asthma |
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Chemical |
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Interactions |
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Ozone |
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Production |
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M24780 |
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* American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE)
69-2035EFS—05 |
2 |
TrueSTEAM Direct-Injection Humidifier
TrueSTEAM function and operation
Your TrueSTEAM humidifier provides the highest capacity and most efficient steam humidification for whole-house residential applications.
LED light feedback allows you to monitor performance, giving you total control and peace of mind.
True steam provides your home with highcapacity true humidity, while using up to 70% less water than flow-through humidifiers.
Snap-lock latch allows for quick, easy maintenance.
Sediment screen keeps the tank clean for a longer period of time, reducing maintenance and ensuring optimum performance.
The patented Condensate Collect Dome and beveled nozzle keep water in the tank, delivering only true steam into your duct’s airflow.
M24784
Automatically fills with water and drains when needed, so you don’t have to remember to do it.
Wiring to your HVAC equipment allows TrueSTEAM to supply humidity when you need it by turning on your equipment automatically.
3 |
69-2035EFS—05 |
Operating Manual
Setting the controls
The colder it is outside, the less humidity can be retained by the air. Initially setting your humidistat to ideal comfort levels will help your TrueSTEAM deliver optimal humidification. The table below provides suggested control settings based on outdoor conditions.
You may experience that your home needs humidity levels to be slightly higher or lower than the suggested levels given in the table, in order to prevent window condensation or dryness. This is because your home is unique in size, shape, building tightness, and age. These variables play an active role in how your indoor humidity fluctuates. Use the table as a starting point, but adjust according to your comfort and observations of condensation.
Outdoor |
Recommended RH % |
Temperature |
Setting |
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-20°F (-29°C) |
15% |
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-10°F (-23°C) |
20% |
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0°F (-18°C) |
25% |
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10°F (-12°C) |
30% |
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20°F (-7°C) |
35% |
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>20°F (-1°C) |
40% |
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With automatic controls like TrueIAQ and VisionPRO IAQ, you need only calibrate this setting once. The automatic feature will adjust by itself as outdoor conditions change, based on your initial settings. After setting your auto control to the desired RH% level, check for condensation or frost forming on windows on the first cold day. If present, adjust your frost settings on the control (see control owner’s manual if needed).
The Window Frost Protection feature protects your home by limiting humidity output based on outdoor
conditions (for example, on colder days, your home can hold less humidity).
LESS HUMIDITY |
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MORE HUMIDITY |
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LOOSE HOME/SINGLE-PANE WINDOWS |
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TIGHT HOME/TRIPLE-PANE WINDOWS |
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1 |
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M24830 |
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Frost Settings should be lowered by one value each morning that you see frost or condensation on windows. Allow 24 hours for the adjustment to take affect. Once you have this set to a comfortable level without condensation forming, you will not need to adjust this again. You can adjust your humidity settings without worrying about condensation.
With Manual Humidity Controls—such as the H8908—you will need to adjust your RH% settings each time the outdoor conditions change (more humidity with warmer outdoor conditions, lower humidity with colder conditions). These controls provide accurate operation, but require more hands on adjustment. These controls are a good choice for homeowners who desire continuous interaction with humidity settings.
69-2035EFS—05 |
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TrueSTEAM Direct-Injection Humidifier
LEDAboutlightyourindicatorsnew thermostat
The LED light panel on the TrueSTEAM lets you know that the humidifier is operating correctly, when maintenance is needed, and when it is safe to remove the tank for cleaning. The push buttons allow the tank to be drained for cleaning, and quickly return to operation when the tank is reattached to the humidifier.
Power indicates the TrueSTEAM is plugged in and that the humidifier is ready for operation.
Humidifying indicates that steam is being delivered to the home.
Clean Tank: This LED blinks to indicate the TrueSTEAM is draining when you press the EMPTY button. When the light is on solid (not blinking), the tank is empty and safe to remove for cleaning.
Call Service is a fault indicator. Call your HVAC technician to service the humidifier. HVAC technicians: Refer to page 12 for fault identification and troubleshooting.
Press Reset will blink when power is applied or reapplied (upon initial installation or after cleaning). This is a stand-by mode to ensure water lines are hooked up properly before unit resumes operation. This will blink for 5 minutes before going to system ready. The 5-minute default can be overriden by the installer by pressing the RESET button.
Press Empty will blink to indicate that the water tank needs cleaning. Push the Empty button to drain the tank for safe removal and cleaning.
Reset Button If the Press Reset light is blinking, press the RESET button override the 5-minute delay at startup. If the Call Service LED is on (fault is present), press/release the RESET button to blink a diagnostic code on the Call Service LED. Press/Hold the button for 5 seconds to clear all faults and reset “Clean Tank” timers. If the Press Empty LED is blinking, press/hold RESET button for 5 seconds to turn off the Press Empty LED and restart Clean tank timer.
Empty Button Press and hold for 3 seconds to drain the tank of water for service. Do this before servicing the tank and internal parts.
POWER
HUMIDIFYING
CLEAN TANK
SEE LABEL BELOW !
CALL SERVICE
PRESS RESET
PRESS EMPTY
RESET
EMPTY
M24763
5 |
69-2035EFS—05 |
Operating Manual
Cleaning and maintenance
Maintenance is made simple with the TrueSTEAM—just remove the water tank for cleaning.
Warning: Scalding hazard.
not attempt to remove the humidifier from the mounting bracket during operation, or humidifier’s water tank when full of water. The heating element could be hot when
tank is removed. Failure to comply could result in severe scalding or death.
CAUTION
water temperature above 140°F (60°C) can cause burns from scalding.
Drain Operation
•Auto flushing is configurable to 10, 20 or 30 hours of operational time (heating element active).
•During auto flushing, cold water will enter the tank to lower water temperature below 140°F (60°C) before draining.
•During manual flush (performed by pressing the EMPTY button) initial water temperature may be above 140°F (60°C). Ensure drain outlet is not exposed and use caution when pressing the EMPTY button, and do NOT attempt to remove the tank with water in it.
•Manual flush takes approximately 15 minutes to empty the tank completely.
To clean TrueSTEAM:
1. Press the EMPTY button. Wait for the CLEAN TANK light to be on solid (not blinking).
Wait |
Go to Step 2 |
(approximately 15 minutes) |
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CLEAN T |
CLEAN TANK |
(BLINKING |
(ON SOLID) |
M24775
M24776
69-2035EFS—05 |
6 |
TrueSTEAM Direct-Injection Humidifier
Cleaning and maintenance
2.Turn the manual shutoff valve at the bottom of the tank to the “Unlock” position.
3.Grip the white water valve arm and slide it back within the bracket to disengage from the tank.
4.Firmly grip the tank bottom. Push down the cover's safety button and pull the latch forward to release the tank.
Note: Latch does not come off humidifier with tank.
M24777
M24779
5.Use tap water to flush loose minerals from the tank. Sediment screen at tank's bottom is removable. For a more thorough cleaning, soak tank in warm, soapy water, then rinse clean. Tank is also dishwasher-safe.
M24778
6.Carefully rub minerals off of the heating element and reservoir walls. Scouring pads suitable for non-stick pots or pans are suitable for cleaning the TrueSTEAM reservoir walls and components within the tank.
Sediment screen
M24856 |
M24857 |
Once clean, reattach tank by securing the latch. Engage the water valve to the cam shaft, and “Lock” the shut-off valve. The “Press Reset” light will blink at start-up. Push the RESET button to ready the humidifier.
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69-2035EFS—05 |
Operating Manual
Seasonal or vacation maintenance
TrueSTEAM has the built-in intelligence to shut down when humidity is not needed for an extended period. After 48 hours of inactivity, TrueSTEAM will drain its tank and remain empty until it is needed again. This prevents water from stagnating within the tank. There are a few house-cleaning steps to follow to keep your TrueSTEAM at peak efficiency:
1.Follow steps 1–6 in the Cleaning section on pages 7–8 at least once per year, or when the Press Empty light is blinking.
2.Clear ventilation holes in the humidifier’s cover.
3.Clear the water drain tube.
4.Make sure the water tank gasket seal is not cracked or split before reattaching the humidifier water tank.
5.Check that the humidifier is still level.
Extended Vacation
When you leave on extended vacations, it is recommended you turn off the humidifier’s water supply and turn off the humidity control. When you return, turn on the humidifier water supply and reset your humidity control to a comfortable position.
69-2035EFS—05 |
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TrueSTEAM Direct-Injection Humidifier
Homeowner troubleshooting
If you have difficulty with TrueSTEAM, please try the following suggestions. Most problems can be corrected quickly and easily.
Problem |
Look For |
What to Do |
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Low humidity |
Humidifier heater is |
• Confirm that power light is on. |
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not operating |
• Set the humidistat higher. |
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• Check that the furnace power is on. |
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• Reset your circuit breaker or check for blown fuse. |
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• If fault persists, turn humidistat off, unplug unit, |
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reset circuit breaker and call a professional HVAC |
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contractor. |
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Rapid air changes. |
• Keep doors and windows closed. |
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Drafts (cold air |
• Close fireplace damper when not in use. |
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is dry and is an |
• Keep exhaust fan running time to a minimum. |
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added load for the |
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• Seal around doors and windows. |
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humidifier) |
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High Humidity |
Condensation on |
• Turn off the humidity control until condensation is |
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walls |
completely evaporated. Lower humidistat setting to |
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prevent reoccurance of condensation (see pages 2–4 |
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for controlling humidity levels). |
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Heavy |
• Turn humidity control down low enough to eliminate |
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condensation on |
condensation caused by moisture from bathing, |
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windows |
mopping, cooking, etc. If moisture persists, more |
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ventilation is needed. |
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Call for |
TrueSTEAM has |
• Press Reset button. |
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Service LED |
detected one of 15 |
• If fault persists, turn off power supply to the |
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is blinking |
system faults. |
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humidifier, and turn back on. |
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• If fault persists, call a professional HVAC contractor. |
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9 |
69-2035EFS—05 |
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