When installed, should the unit attached to the cold air side of the furnace or on the warm air side?

Wednesday, June 12, 2013 by Aprilaire Team
Consumer question:
 
When installed, should the unit attached to the cold air side of the furnace or on the warm air side? It does not make sense to add water vapor on the cold air side, then heating the air and burning off some of the humidity.
 
 
Aprilaires' response:

It does not matter if the 700 is mounted on the hot air side, or the cold air side. The only requirement is... if installed on the cold air side, you have to run hot water to the humidifier.

Having humidified air put into the cold air return, then into the furnace to be reheated and put out to the home, will not hurt the humidity level. It will not burn off any of the moisture.

 

 

I am interested in installing an Aprilaire whole house humidifier in my own house

Wednesday, March 6, 2013 by Aprilaire Team

Consumer question:

I am interested in installing an Aprilaire whole house humidifier in my own house without a contractor. I have radiant heat so the only ducting I have is for air conditioning. I was wondering if having room temperature air circulation (no air conditioning) would still be effective to evaporate enough water to generate humidity within the specs of the controller. I understand that I would have to periodically have the blower turn on in the heat season in order to simulate a furnace blower, but that is no problem. Im more concerned that because the air would be 70 degrees, that the evaporation would be so slow that the controller would be telling me to replace the filter all the time.

thank you... please give me your suggestions on your best product for this 2200sq foot area and situation.

 

Aprilaires' response:

Thank you for contacting us regarding our whole home humidifiers. You would be able to utilize a whole home humidifier on an air handler unit that is not used for heat. Simply supply the unit with hot water and you can add humidity with moving room temperature air through the water panel.

Based on the size of your home, the 600 should be sufficient. However, there are other factors that may affect the performance of the humidifier. Factors such as ceiling height, age and tightness of the home, water temperature, and desired humidity level all contribute to the humidifiers ability to reach and maintain a given humidity setpoint.

We recommend the installation be done by a licensed HVAC contractor. When installed by a licensed contractor, the units come with a 5 year warranty. If you choose not to use a licensed contractor you risk voiding the 5 year warranty. Additionally, the contractor has the ability to come to your home and evaluate your needs. This will help you make the best decision as to which humidifier will work best in your particular installation.

If you have any further questions regarding this or any of our products, please feel free to contact our customer service department at your earliest convenience.


Aprilaire - Division of Research Products Corporation
1-800-334-6011
Visit www.aprilaire.com
Call center hours are M-F 7am-5pm CST

 

We installed this Humidifier last fall and it is located within the garage area...

Friday, March 1, 2013 by Aprilaire Team

Consumer question:

We installed this Humidifier last fall and it is located within the garage area, mounted on a forced air gas furnace.
the problem we are having is the humidistat says it is 50% humidity and if we check the area that the control is in that is true. the problem is we want 40% in the working area that is being treated and are only reading 34% in the area where it is needed? Can you advise?

 

Aprilaires' response:

Thank you for contacting us. When the humidistat is mounted on the return air duct the humidistat is taking an average humidity reading from the whole home. If you have any rooms where heat vent is closed, but the return vent is still open can affect the reading that the humidistat is getting from the home. By lowering the temperature in a room you also increase the humidity in the room, and this can affect the reading that the humidistat is getting from the home.
You would need to contact your installing contractor to discuss possible solutions to your humidity problem. The first thing that would need to be checked is the actual humidity reading is in the duct at the same location as the humidistat and the area around the humidistat to see what reading you are getting. This would need to be done to see if you are getting an accurate reading of the humidity from the humidistat. Air around the humidistat might be leaking into areas around the humidistat and affecting the reading that the humidistat is getting.

One possible solution is by replacing the automatic humidistat with a manual humidistat mounted in the living space to get a better average humidity level for the home than your current installation could provide. If you have any other questions please contact us at 800-334-6011. Thank you
 

 

I love my Aprilaire model 700A but I have a GPM question.

Friday, February 22, 2013 by Aprilaire Team
Consumer question:
 
Hello,

We had a 700A model humidifier installed about 5 months ago and it seems to work well. I am trying to find what the Gallons Per Minute (GPM) input is when the humidifier is running. I cannot find this information anywhere in the data sheets. It says that the drainage should be (as I calculated it from the FAQ) to be 0.05 to 0.1 GPM but not the input to the humidifier (I would assume this to be more than 0.1 GPM). What should the 700A humidifier be consuming in water input?

Thanks,
Nick
 
Aprilaires' response:

Hello Nick,

Thank you for contacting us. The feed rate for your humidifier is a 6 gallon per hour feed rate to the distribution tray. You should be able to fill a quart jar in 2.5 minutes to the distribution tray or fill a quart jar in 2 minutes 50 seconds for the water coming out of the drain of the humidifier. Is the humidifier mounted on the return or supply side of the furnace? Do you have a hot or cold water supplying the humidifier? The evaporative capacity for the humidifier is dependant on how much heat you are supplying to the humidifier. Supplying cold to a humidifier water mounted on the supply side get you a .75 gallons per hour evaporation, and supplying hot water to a humidifier mounted on the supply side gives you an evaporation rate of .9 gallons per hour. If you have any other questions please contact us at 800-334-6011. Thank you

 

I'm trying to decide between the 400, 600 and 700 Aprilaire whole house humidifiers? Please advise.

Wednesday, January 23, 2013 by Aprilaire Team

From: webmaster@aprilaire.com\



>>> Phyllis Kaplanek 02/20/12 15:21 >>>

Hello Dan,

Thank you for contacting Aprilaire.

Yes, the 400 does not drain, it will evaporate all of the water used.

The 600 uses no power, so would be less expensive to run than the 700.

When the 700 is operating, it is drawing air from the duct work, humidifies it, and blows it back into the duct work all in one spot. Also, yes, sometimes it has been reported that cold air would come out of the vents in the 700 during usage of the air conditioner.

It is difficult to offer 'utility expenses' since each home uses different amounts of water or electricity depending on the humidification needs.

Please let us know if you have any further questions.



Phyllis Kaplanek
Customer Service Specialist
Aprilaire - Division of Research Products Corporation
ptk@aprilaire.com
1-800-334-6011, ext 6181
visit www.aprilaire.com
Call Center hours are M-F, 7:00 a.m. to 5:00 p.m. CST


>>> Dan 2/18/2012 10:14 AM >>>
Name: Dan

Email: civdan@yahoo.com

Address: 7109 Marrisey Loop

City: Galena

State: OH

ZIP: 43021

Country: USA

Phone:

Product_type: Humidifiers

Model number: 700

Installation date:

Professionally installed:

Comments: I\'m trying to decide between the 400, 600 and 700 whole house humidifiers. I like that the 400 wastes no water and uses cold water. Does the fan in the 700 draw air in from the basement or is it sealed so it only pulls heated air from the duct? Would air conditioned air escape from the 700 into the basement during the summer?About how much energy does the fan use on the 700? Will this cost me like $20 more per year in electricity than the 600, for example? How much less would the 400 be in utility costs than the 600 or 700? Thank you!


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The information contained in this e-mail and any attached document(s) is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you receive this in error, please contact the sender and delete the material from any computer.

When should my Aprilaire model 700 humidifier run?

Thursday, January 3, 2013 by Aprilaire Team
Consumer question:
 
Since my model 700 was installed last winter, I've noticed it sometimes runs even if the heater isn't running. Also, sometimes, if the heater is running, the humidifier does not. It seems to run completely independently of whether the heater is running or not. Is this normal?
 
Aprilaires' response:
 
Thank you for contacting us. The humidifier does not regularly run independent of the furnace when wired to turn on and off with the furnace heat call. If you turned the humidistat down when the humidifier was running, does the humidifier turn off? If the humidifier stays on when the humidistat is turned down, then you would have a bad solenoid. If the humidifier turns off then you have a good humidistat and good solenoid.

Do you have a digital humidistat that you are controlling the humidifier with? The digital humidistat has a blower activation switch on it and you might have that in the on position. Turning the blower activation switch to the off position should solve your problem of the humidifier running in these different times.

If you have a manual control to wired to the humidifier, then you would need to have your service contractor trouble shoot the current sensing relay that would be wired between the humidistat and humidifier.
 
If you have any other questions please contact us at 800-334-6011. Thank you

 

New model 400, installed 8 days ago...but I'm still a little dry?

Monday, December 3, 2012 by Aprilaire Team
Consumer question:
 
I had an Aprilaire 400a humidifier installed on my 3 story town home (1 1/2 years old) about 8 days ago. After adjusting settings on the unit, the humidity in my home peaks at approximately 27% at maximum settings and with the blower on.

This morning was the highest that the unit registered and that was 37% internal humidity, but it rained all night and the humidity outdoors was above 50%.

I have contacted the dealer/installer and they assured me that they're going to talk to their management to see if there's an issue, however I am told that it may just be because of my home.

I'm not sure if that's accurate, as my home is less than 2 years old and is tightly constructed. I went with the larger humidifier that they offered, however i'm concerned that reaching 27% humidity on max settings when it is 25-35 degrees outside is going to be an issue.

Any feedback you can provide would be greatly appreciated.
 
 
Aprilaire's response:

Thank you for your email regarding your model 400 Aprilaire humidifier. Any Aprilaire humidifier is reliant on the HVAC system to be operating in order to add humidity to your home. While your model 400 will add some humidity during a blower only call, it primarily is adding humidity during a heat call. If your heat call is short, then the humidifier will have a short operating time as well. Homes also will require time to build up the humidity level when a humidifier is first installed. Since your model 400 was only installed 8 days ago it may just take more time to raise the humidity level. At this point we would ask you to give it another week or two. Your home has had all winter to lose moisture and it will take time for the home to soak up moisture created by the humidifier.

 
 

 

Should my Aprilaire humidifier run ONLY when my furnace is running?

Monday, October 29, 2012 by Aprilaire Team
Consumer question:
 
I have an Aprilaire model 700 and I assume it's normal to turn on my heater's blower in automatic mode to raise humidity? When I turn it down from 5 to 3, the blower doesn't turn off. Is that normal?
 
 
Aprilaires' response:
 
Thank you for contacting us regarding your model 700 humidifier. When installed and wired properly, the humidifier should only turn on after the blower has been activated due to a heat call or fan call from the thermostat. If your control has the optional blower activation function, it may extend the blower and humidifier run time after the heat call has been satisfied. However, if you are using the blower run extension, it should turn the blower off if you lower the humidity level. We may need more information to fully understand your particular situation.

Additionally, to better understand the functionality of your unit, you have the option to call our technical support department at 1-800-334-6011 to discuss it with one of our technicians over the phone.

If you have any further questions regarding this or any of our products, please feel free to contact our customer service department at your earliest convenience.

1-800-334-6011
Visit www.aprilaire.com
Call center hours are M-F 7am-5pm CST

 

Faulty wire connection?

Wednesday, October 17, 2012 by Aprilaire Team

Consumer question:

Hi: I have the 8570 thermostat pn 61000229 rev c with a 700a humidifier; ADHC model 58; 61000501 rev b.
The adhc is wired to the 8570 for activation. The supplied outside sensor is also used. It works but intermittenly the 8570 screen goes blank while operating and causes the adhc "call dealer for service" light. the E4 code appears on the adhc. I had the heating tech out for annual service and could not find anything wrong. The only other symtom that I noticed was it occurs in the temp range freezing or above. During continous freezing weather, it did not seem to need to be reset as much.
I have rechecked the wiring between the 8570 and adhc and it is correct. The intermitten screen blank on the 8570 makes me believe that either the unit is faulty or an intermitten power loss.  Any thoughts?

 

Aprilaires' response:

Thank you for including Aprilaire as part of your home comfort system.

The description you have given us sounds as though there is a problem with the communication between the 8570 thermostat and the model 58 humidistat. You may want to recheck that all the connections at the ADHC and 8570 are snug, including the sensor to the outdoors. If the connections are snug and the fault reoccurs, you may remove the "A" and "B" wires between them and determine if the fault reappears. If it does not then the problem would probably be a broken wire.

If you have further questions, or need more assistance, feel free to contact us.

 

How do I get more humidity out of my humidifier?

Friday, August 24, 2012 by Aprilaire Team
Consumer question:
 
Just installed a 600 unit. We had to turn blower on because furnace time alone was not increaing the RH enough. Will the blower shut off once the desired RH is reached or do I need to flip the switch? My concern is that without the blower the desired RH might not be attained.
 
Aprilaires' response:
 
Thank you for contacting us regarding your model 600 humidifier. If the control with your model 600 is the model 60 automatic digital humidistat control (ADHC), you have an optional blower activation built into the control. When wired properly, the model 60 can extend the blower run time to allow your humidifier to continue to run after a heat call has been satisfied. Once the humidity set point has been satisfied, the blower activation will turn off automatically.

If your control does not offer the blower activation or you are not using the available blower activation, the control does not have the capability to turn off the blower when the humidity set point has been reached. In this case the blower would need to be turned off manually.

Additionally you have the option to call our technical support department at 1-800-334-6011 to discuss this with one of our technicians over the phone. Our tech support department is available Monday through Friday, 7 am to 5 pm CST.

If you have any further questions regarding this or any of our products, please feel free to contact our customer service department at your earliest convenience. 1-800-334-6011.

 

Lots of water running down the drain tube, is that correct?

Thursday, June 28, 2012 by Aprilaire Team
Consumer question:
 
I had a model 700 Aprilaire humidifier installed yesterday and have a couple of questions;

1) it seems to have a lot of water when running coming out of the drain tube, is that normal?
2) I had to install the hunidifier on the return side becuase there was no room on the feed side of the furnace. I put the thermostat on the return side also but the reading goes way up and then back down when its operating when it kicks on and off. Should I put the thermostat on the feed side so its not on the same side as the humidifier? Its running in manual mode right now, I have to run the sensor outside adn my basemnet is finished so thats going to be a challenge.

 
Aprilaires' response:
 
Thank you for choosing the Aprilaire line of humidifiers for your home comfort system.
 
The amount of water that is discharged down your drain should be approximately 3 gallons per hour. Your description of the extreme humidity swings when the unit is cycling on and off lead me to the conclusion that the humidifier control may be mounted too close to the humidifier, or is mounted between the humidifier and the furnace, allowing for the humidifier output to affect the sensing of the control. It is recommended , in the installation guide that the control should be mounted at least 6" upwind of the humidifier.

If you have other questions regarding your Aprilaire 700 humidifier, please contact us at the number below. We appreciate your business.

Should my Aprilaire Humidifier be hooked up to hot or cold water?

Friday, June 8, 2012 by Aprilaire Team

Consumer question:

I have a Aprilaire 600m model and should I conect the water supply to the hot or cold line.

 

Aprilaires' response:

Thank you for your email regarding your model 600M Aprilaire humidifier. Your Aprilaire humidifier will operate on hot, cold hard or soft water. We do however recommend hot water as it will increase the evaporative capacity of the humidifier. Hot water will also allow you to operate your humidifier during a fan call. A heat source is required for the evaporation process. During a fan call the only source of heat is hot water.

 

 

My Aprilaire model 760 humidifier that has worked great for the last 11 years has a short

Thursday, May 10, 2012 by Aprilaire Team

Consumer question:

My Aprilaire model 760 humidifier that has worked great for the last 11 years has a short that apparently cannot be repaired. So what would it cost to get a new one that will fit my furnace exactly like my 760 did. Also the cost of a new one, or can mine be sent in for repair.

 

Aprilaires' response:

Thank you for using Aprilaire products in your home comfort system.

I am sorry to hear that your model 760 has failed after 11 years of service. I am please to let you know that you local heating and air conditioning company can assist you in obtaining a replacement for your model 760. Our current model 700 humidifier would replace the model 760 for area coverage, the dimensional size may vary slightly.

 

No water comes in to the model 500 aprilaire humidifier when running. What could be happening?

Wednesday, May 9, 2012 by Aprilaire Team
Consumer question:
 
No water comes in to the model 500 aprilaire humidifier when running. Could it be a problem with the solenoid valve??


Aprilaires' response:

Thank you for contacting us.
No water could be an indication of an issue with the solenoid valve.
If you have an Automatic Control try putting it into test mode:

A. No click at the solenoid valve indicates an electrical problem. Contact the heating and air conditioning dealer to further check the electrical components of the Aprilaire Humidifier.

B. If the solenoid valve makes a click sound and there is no water draining from the unit, this would indicate the flow of water is being obstructed.

1. To determine if water flow is being obstructed, turn the dial of the humidifier control to the off position. The first location to check for an obstruction would be at the saddle valve located on the water line supplying water to the humidifier. When checking the saddle valve, make sure it is completely open. This can be done by turning the valve all the way to the left. If anything is clogged, it can be dislodged by turning the saddle valve all the way to the right and back to the left. Once this is done, turn the humidifier control dial above the click point and water should be coming out the drain line.

2. If water is still not coming out of the drain, check the orifice and in-line strainer to make sure they are not clogged. The orifice is located in the tube on the outlet side of the solenoid valve and the in-line strainer is located on the inlet side of the solenoid valve (see attached). The orifice may be cleared by inserting a needle through the small opening. The strainer may be cleaned by running it under warm water to dislodge deposits or replace it. After clearing and re-installing the orifice and strainer (be sure to double wrench all water connections), turn the humidifier control dial above the click point and water should be coming out the drain line.

 

What is the minimum water temperature to supply an Aprilaire 350 humidifier?

Tuesday, May 8, 2012 by Aprilaire Team
Consumer question:
 
What's the minimum water temperature needed to supply this Aprilaire model 350 humidifier unit? We want to reduce the water temp for the summer so it doesn't heat the house while it runs. Here in Denver we still need the moisture all year around.

By the way, do you make a in-the wall ultrasonic unit with a humidistat, that can run from filtered water that removes minerals and chlorine?
 
 
Aprilaires' response:

Thank you for your email regarding your model 350 Aprilaire humidifier. The minimum water temperature for our self contained humidifiers is 140F. This is required in order for the evaporation process to take place. When the hot water flows over the water panel, the water evaporates off the water panel and into the room temperature air moving through the water panel. Lowering the water temperature will reduce the amount of humidification produced. The water to the humidifier can be hard or softened but should not be from a reverse osmosis system. We do not manufacture ultrasonic humidifiers.

 

The Aprilaire 8463 thermostat has Auto, Off, Heat, Cool, and Em-Heat system modes

Monday, March 12, 2012 by Aprilaire Team
Consumer question:
 
The Aprilaire 8463 thermostat has Auto, Off, Heat, Cool, and Em-Heat system modes. How do you select Auto. On my thermostat it does not present me with the Auto option.
 
Aprilaires' response:

Thank you for your email regarding your model 8463 Aprilaire Thermostat.

To select your Auto Mode on the 8463 first push the mode button and select OFF. Next press the MODE button and UP arrow at the same time, holding them both down (3-5 sec) until 00 comes up on the screen. Then press the MODE button to select 04. At this point you will see a small 0 in the top right hand corner of the screen. Using the UP and DOWN arrows you can select 1 to enable the AUTO feature. After that last selection let the screen return to normal by not touching the buttons. You can now select the AUTO mode.

 

Can an in-line fan be added to my Aprilaire humidifier?

Wednesday, February 29, 2012 by Aprilaire Team
Consumer question:
 
Can I add an in-line fan to the humidifier bypass duct in order to increase the humidity?
 
Aprilaires' response:

Thank you for contacting us with regards to our model 400 Humidifier. This humidifier requires between 60-100 CFM to operate properly. If the air provided to the humidifier is lower than 60 CFM, an in-line fan may help increase the humidification rate, but it should only run with the furnace. As a drainless model, it does not humidify well without a source of heat to evaporate the water.

 

Model 800 has 3 sets of capacity, which one is right for me?

Saturday, February 11, 2012 by Aprilaire Team
Consumer question:

My house is 6000sq ft. What capacity should my Aprilaire model 800 humidifier unit be set to, 11.5,20.5,or 23.3 gallons per day? Also how do I know what its set at now? I cant seem to get it about 37% humidity. I have a digital new thermostat.

Aprilaires' response:

Thank you for your email regarding your model 800 Aprilaire steam humidifier. Your model 800 can work with a 110, 208 or 240 volt power supply. The higher the voltage, the higher the gallons per day output. A power supply of 240 will produce 23.3 gallons per day. A home of 6000 sq. ft with 8" ceilings would typical need 23- 25 gallons per day. Your HVAC installer would know how they sized your home for humidification and what power supply they used. As long as your thermostat has dry contacts, it may be used to control humidification from your model 800. We ask for you to please contact them to discuss how they have wired your system.


I like humming but I don't like my humidifier humming, please help!

Friday, February 10, 2012 by Aprilaire Team
Consumer question:

We have an Aprilaire model 550 Humidifier attached to our Central Air/Heat House system (also attached is a Aprilaire 2400 Air Cleaner). Both have worked smoothly until a couple of days ago. Water used to drain periodically into a corner sink like it was supposed to but now no water is draining whatsoever, and the humidifier makes a noise every once in a while like a little brief hum as if it is trying to run but cannot. I know the Water panel needs to be replaced, and I was wondering if this could be the cause of the problem or if it is something more serious. I would appreciate any insight you can give me. (if it matters, the humidifier is set to 35%, as is recommended for the current temperature.) Also, I tried to find the test/reset switch to test the humidifier, but could not find it on the unit. Any idea where it is typically located on this model?

Aprilaires' response:

Thank you for contacting us regarding your model 550 humidifier. If there is no water coming from the unit when the furnace is on and the control is making a call for humidity, then the solenoid valve is not opening. Since you are hearing an occasional hum from the humidifier, it sounds like the solenoid is trying to open but cannot. The condition of the water panel would have no bearing on the solenoid's ability to open. In this case we would recommend contacting your contractor to schedule a service call for your humidifier.

Additionally, to better understand why your unit is not operating, you have the option to call our technical support department at 1-800-334-6011 to troubleshoot the unit with one of our technicians over the phone. The technician may be able to diagnose what the problem is and point you in the right direction regarding service.

Our tech support department is available Monday through Friday, 7 am to 5 pm CST.

If you have any further questions regarding this or any of our products, please feel free to contact our customer service department at your earliest convenience.

Thinking I need a bigger humidifier...

Thursday, February 9, 2012 by Aprilaire Team
Consumer question:

The furnace contractor installed the Aprilaire 500 humidifier for a home that is over 5500 sq ft. In reviewing the product information on your website it appears the contractor should have installed the 700 series. Am I correct in my assumption?


Aprilaires' response:

Thank you for contacting us with regards to your model 500 Humidifier. If this unit is the only source of humidification you have in your home, it will likely not be sufficient. While a 700 has 50% greater capacity, it is still only designed to handle 4200 sq ft. Our recommendation would be either to have two units in your home or one Model 800 steam humidifier. It can operate with any fan cycle of your furnace, not just the heat cycles, and humidify up to 24 hours/day. Please visit us online at www.aprilaire.com for more information on this model or any of our other product lines.
We appreciate the opportunity to be of assistance.