What is the other advantage of having an outdoor temp sensor? the sensor broke out of the housing and the shipping costs are more than the sensor.
Aprilaires' response:
The outdoor temperature sensor when utilized with our Automatic Digital Humidistat allows the humidistat to automatically adjust the humidity setting based upon the outside temperature. This allows you to have hands free control of the amount of humidity that will be added to the home through out a 24 hour period. Our temperature sensor will take approximately 400,000 readings daily and will adjust the humidity setting automatically through out the day based upon the outside temperature.
Our products generally do come with a warranty that covers the parts. The length of the warranty will depends on the date of installation of the actual product. If the product is within the stated warranty period the part could be obtained and replaced through your installing heating and cooling contractor. In the event that the product is not covered under warranty you would be required to purchase the replacement part through your installing contractor or on our E-Store at www.aprilaire.com. We would like to further assist you in determining if your product is currently covered under warranty. If you could please provide us with your date of installation we can than determine if this particular component still falls within the warranty period.
We look forward to working with you in the future regarding our products. If there are any further questions or concerns please contact us at your earliest convenience.
The dehumidifier is leaking water from the bottom of the unit. There is no blockage on the drain line. What could the cause be?
Aprilaires' response:
Thank you for your email regarding your model 1700 Aprilaire Deumidifier. That model had a copper drain. The drain requires some type of drain trap to carry away the water the unit removes. Typical the trap is made out of PVC. The trap needs to be primed as the 1700 is under negative pressure. If not primed, water will not be properly carried away from the unit.
To best assist you we need to learn more about your application. Please contact out technical support department at 1-800 334-6011 7:00 a.m - 5:00 p.m central time Monday - Friday.
I bought a home that has a Model 550 installed. The previous owner/s did not have a manual. Do you have any info on this? Is it a humidifier, de-humidifier, or both?
Aprilaires' response:
The model 550 is a humidifier. Here is the owners manual for that unit.
The most important thing to remember for taking care of this humidifier is to make sure and change the water panel every year. This humidifier takes a #10 water panel. This can be purchased by calling us and ordering over the phone, or you may go to estore.aprilaire.com to purchase, or at aprilaire.com you may enter your zipcode in the upper right hand area that will show you what dealer is in your area.
Which of your dehumidifiers is the quietest? We need to dehumidify our finished 1,400 sq. ft. basement and do not want to hear noise from the fan or any other element in the dehumidifier. Also, are there ways to eliminate such sounds?
Aprilaires' response:
Thank you for contacting us with regards to our Aprilaire Dehumidifiers. Currently, our model 1750A rates around 48 db when it's ducted into your central system and around 54 db unducted. The units are well-insulated for temperature and noise, but the do make sounds. You will not be able to eliminate the noise any more than you could for a washer or dryer. It's a mechanical device with an internal fan and compressor. Our recommendation is that you speak to a contractor about having one installed. They can visit your home and work with you to minimize its impact on the noise level in your finished basement.
The unit has a display readout which showed relative humidity all winter long. It now seems to be stuck on 49 during the humid summer. Does the unit not function when the furnace is not being used? Do I need to reset something?
Aprilaires' response:
The humidistat for your humidifier reads the final reading that humidifier read after the last time it was on, and will not display another reading until the humidifier. The furnace just energizes the humidistat to allow it to turn on if humidity is needed in the house. You will want to note the setting on the humidistat, so you know what setting you will need in the fall when the humidifier can be turned back on. You can then turn the nob for the humidistat counter clockwise for the remainder of the summer, to ensure it doesn't turn on. Turning the black nob from winter to summer is another step in the spring/summer that needs to be done to prevent air flow through the by pass humidifier. I've included a link to the owner manual that will walk you through the steps for the summer season when the call for humidity is not usually necessary unless you lived in the dry climates like Arizona or Colorado. http://www.aprilaire.com/index.php?znfAction=OwnersManual
As I try to test the 8120 system if the humidity is high outside I can not make the system work (in the test mode) Is there a way to override the humidity sensor just to test the system to make sure it is working correctly.
Aprilaires' response:
Regards to your model 8120 Ventilation Controller, test mode will operate the HVAC Blower and ventilation damper for 1 minute, regardless of indoor and outdoor conditions. If Test mode is not energizing one or both components in this system, there is an issue related to the wiring or components. Please let us know if we can be of further assistance.
We have a new house with the Bryant Evolution 2 stage air source heat pump with a staged electric plenum heat assist (no gas furance), 4 level zone control, and evolution control termostats. My wife and I are fine with temps around 78 degrees so the AC does not run much if any. Even the dehumidification mode of the AC will not come on unless the temp is at least 77 degrees if the stat is set to cool at 78 degrees. The house is very tight because all exterior walls are ICF. It is very efficient so it stays cool but the humidity gets higher than I like. I am looking at adding the 1750 dehumidifier. My question is that when the dehumidifier is hooked up to the HVAC/Thermostat, will it open up the 4 dampers for all of the 4 zones/levels so it will dehumidify the entire house? Also, would it be better to use the on-unit dehumidistat or the remote Aprilaire dehumidistat mounted in the upper level/bedroom level of the home?
Aprilaires' response:
Thank you for contacting us with regards to our Aprilaire Dehumidifiers. Typically, the dehumidifier is wired into the thermostat inputs of your HVAC system so that the fan can be turned on when dehumidification is needed. This provides better distribution of the dry air throughout the home. The issue of the dampers being closed will be a problem. Depending on how your zone control system operates, the dehumidifier may not be able to send a signal to open all of your dampers. One solution would be to bypass one of the dampers with the dehumidifier, supplying dry air to a large, central area of the home. Another might be to bypass your central air system entirely and add the dry air directly into a large area of the home. A contractor would be better able to look at the home and make installation suggestions. With regards to the onboard sensor or wall-mounted sensor, the dehumidifier will operate at the same rate. The difference will be where it's measuring the humidity. With the wall control, it will only be measuring in that area. With the onboard sensor, it will be measuring the level of humidity of all air passing through the dehumidifier. Please let us know if you have any further questions.
Recently purchased this townhome and I can see that the central humidifier has been checked. My question is how do I turn it off during the summer? There is no off switch. Top part of circle with numbers with 45 being on left. On left side of knob is a beige line and on right side a red line. How do I know if it is turned off or down so it doesn't run? If I just had a picture of the thermostat in a low position where it is not working that would help greatly.
Aprilaires' response:
You were asking how to turn the humidifier off for the summer, and the first step would be to turn the air bypass damper off in the bypass pipe. Note the setting on the humidistat before you do anything more so you can remember what the setting needs to be in the fall. The humidistat nob would have to be turned counter clockwise as far as it will go in order to turn it off for the system. The good thing is that our humidistats do not work when the humidity is over 45 %, which the humidity is over 45% for most of America in the summer, except of course in areas similar to the dry Arizona weather.
I have supplied the website where you could go to find an owners manual for your 220 humidifier. Page 7 will explain the operating instructions for the humidifier. Annual maintenance for the humidifier starts at the bottom of page 8. Page 11 gives the step by step yearly maintenance for the humidifier. http://www.aprilaire.com/index.php?znfAction=OwnersManual
If you have any further questions please contact us at 1-800-334-6011.
I have a drain pipe connected to the dehumidifier, but the unit is leaking from the bottom. I could not find any thing in the product manual addressing the problem. How can I have an authorized servicer check out the unit to address the issue?
Aprilaires' response:
Regarding your model 1750A Aprilaire Dehumidifier, it appears your p-tap may require priming. Your original installer can re-prime the p-trap. If you or they have additional questions,,please let us know.
I'm wanting to use a one of your model 1700s for dehumidifying a crawl space in a fishing cabin in Missouri.
The crawl space is 24' X 24' X 7'. Half the floor is concrete the other half is bedrock and dirt. The only ventilation is a couple of windows, no forced air. When we get heavy rain the ground water eventually seeps into the crawl space through the bedrock/dirt. The moisture keeps the dirt damp but never causes any puddling of water. Currently we are using a fan running 24 hours a day to try and keep the air circulating to help dry things out. Of course it never dries it up.
From what information I have gathered this looks like it would be exactly what we need to use. I don't want to use a consumer type unit because of the small capacity and low temperature issues. The cabin is used as a vacation spot so it is not occupied all the time. We need a dependable unit that won't be freezing up.
I think this would this be a good fit for a 1700. Any suggestions for this application?
Aprilaires' response:
Thank you for contacting us with regards to our Aprilaire Dehumidifiers. Based on the size, you might get by with our smaller unit, model 1730A, as the original 1700 is obsolete. You didn't list any conditions, either present or desired, but our units should not have any difficulty drying out that space. You have an equivalent area of 504 sq ft in a moderate climate. Provided that the air change rate is less than 1/hr and some steps are taken to reduce the reintroduction of water from the bedrock/dirt area, the 1730A should be fine. It's capable of handling at least 2600 sq ft. Please see the literature for more information.
Should I run the Aprilaire Dehumidifier unit the same time I have my air conditioner working?
Aprilaires' response:
Thank you for contacting us with regards to your model 1700 Dehumidifier. This unit can run in conjunction with your A/C system, but likely it will run as long as humidity remains high. The two are not linked for operational purposes. Temperature can change fairly rapidly, while humidity can take much longer to affect. Our recommendation is to set the dehumidifier's control knob at the level of humidity you would like it to maintain, and let it run to achieve that level. Your air conditioning will control the temperature as needed.
Aprilaire Central Dehumidifier & Steam Humidifier Help Preserve Maryland’s first synagogue
The challenge for John Lederer, principal owner of Frosty Refrigeration, Inc. in Baltimore, Maryland, was to control the level of humidity in the museum of the nation’s 3rd oldest remaining synagogue. Built in 1845, the Loyd Street Synagogue museum is located in the lower level of the Greek Revival structure. Humidity control was required to help preserve the historical artifacts, exhibits as well as the structure itself. Adding to the challenge was the requirement to maintain a constant humidity level of 40% to 50% all year round, to “...a historical building, not weatherized and with high infiltration.” With the help of Aprilaire’s Partner Website, John was able to calculate how much moisture would be required to add during the heating season and removed during non-heating seasons. “ The Aprilaire website software was helpful and intuitive.” Since there was no existing forced air duct system in the museum area, Frosty Refrigeration designed a stand alone system that included: an Aprilaire 1770A Central Dehumidifier; model 1160 Steam Humidifier; and a forced air system with duct work and dedicated blower. A commercial humidistat was used with high and low limits to control the 1160 and 1170A operation. According John, “... the designed system and Aprilaire equipment have outperformed expectations.”
Submitted by: Marc Cassel 5/21/10
Museum display area >>>
John Leder, principal owner of Frosty Refrigeration, Inc., standing next to an Aprilaire 1770A dehumidifier and 1160 steam humidifier with a dedicated duct system. >>>
Wall vent to museum area dishcarging humidity controlled air back to the museum space.
I was wondering if a whole house dehumidifier would qualify for a 'energy tax credit'. Our house is about 2200 square feet.
Aprilaires' response:
Dehumidifer's do not qualify for the energy tax credit. Based on the square footage of your home, our Aprilaire model 1770A could effectively dehumidify your home. We ask that you contact your HVAC installer to determine if our model 1770A is the best choice for your home.
I have a conventional two story house in Houston, TX, with one upstairs and one downstairs A/C (both likely oversized). Separate ducting and return, but there is a large open stairway connecting up and down floors.
Question: Can one Aprilaire de-humidifier serve as a whole-house unit, ducted into one unit or the other? My house is about 3000 SF total.
Aprilaires' response:
Depending upon the tightness of your home you may only need one dehumidifier. The Model 1770A will dehumidify 2500 -5000 sq ft. with 8' ceilings depending upon the tightness. With a home of your size the best recommendation would be to install a 2 - 1750A, one each of your systems. If you decide to put in a single unit we would suggest installing the 1770A on your downstairs system.
I have a 100 year old 2 story house with a split system. High energy efficiency system installed in 2005. I live in an area of high humidity and I have a leaky basement furnace room. I just bought a 70 pt. portable dehumidifier from Lowes and in my living room it fills up in less than 8 hours. Humidity tests by the local hvac dealer who installed the system confirm high levels - can't remember.
What are the chances that a whole house system would dry out the 2000 sq. feet on the bottom floor? We don't seem to have the same problems upstairs.
Aprilaires' response:
Thank you for your email regarding your interest in our Aprilaire Dehumidifier's. Our whole house dehumidifier's are sized for the entire home not just one area. Based on the information you provided and your area of the country, our model 1770A is a model capable of dehumidifying your home. Your HVAC dealer would be the best source to select the dehumidifier for your application. We therefore ask that you please contact your HVAC dealer.
I was told that the dehumidifiers have lost their energy star rating by another in industry, is this true? thank you
Aprilaires' response:
When we first came out with the Model 1700 dehumidifier to qualify for the Energy Star Rating the dehumidifier needed to remove 2.25 liters per kilowatt hour (KWH). The Model 1700 removes 2.3 liters per KWH so it was Energy Star rated. Then Energy Star changed the rating to 2.5 liters per KWH so we no longer qualify for Energy Star. This is the same for the Models 1710, 1710A, 1750 and 1750A.
Our larger dehumidifier Model 1770 was never energy star rated, but our smallest unit Model 1730A is Energy star Rated. The 1730A is designed for small condos and apartments.
Can you tell me what the pros and cons are for Steam vs evaporative humidification?
Aprilaires' response:
If you had a steam or an evaporative humidification that were both rated at the same capacities (example 16 gallons per day) how do you decide which one to use? We will typically tell you to use and evaporative humidifier if you have a forced hot air furnace.
Evaporative humidifiers Pros: they cost less to purchase, use very little electricity, easy maintenance, replacing the evaporative water panel annually is inexpensive. Cons: they only work on forced air systems with hot air or hot water, they use larger amounts of water.
Steam humidifiers Pros: they produce humidity without hot air or hot water, the can be used in homes without any forced air systems. Cons: they cost more to purchase and use a lot of electricity to run, increased maintenance, the steam canisters cost more to replace annually than evaporative water panels.
I am not seeing water run out of the "p" trap into my sump pit as it has done in the past. I cleaned the filter and the trap. The temperature near the inlet is 64 and the humidity is 61. I had the unit set toward more dry, but have changed it to normal. It has been an odd spring in the Northeast, but is what I am seeing normal? The unit seems to be working fine, I'm just not seeing any water flowing. thank you.
Aprilaires' response:
Thank you for contacting us with regards to your model 1700 Dehumidifier. Based on the conditions you provided, this unit may be operating at a reduced capacity, but should still be producing water from the drain line. You may need to have the More Dry/Less Dry knob set to 5 or higher in order to make the unit run. As it runs, remove the filter access door, remove the filter, and reach in with your hand to feel the evaporative coil. It should feel cold and damp, and it should feel fairly uniform, top to bottom, front to back. There shouldn't be patches of cold and hot areas. If it's not getting cold, or if it's not uniformly cold, it may indicate a lack or loss of charge. You may need to have a service contractor inspect the unit for leaks.
Do you have a combination digital programmable heater control with humidity control on the same unit.
I have two lennox heaters and two 760 humidifiers and need two thermostats. I do not have air conditioning.
I would like a thermostat and humidity control built into one unit. I need two of them.
What are my options. I now have two humidity controls with knobs and two programmable thermostats.
Aprilaires' response:
Thank you for your email regarding your model 760 Aprilaire humidifier. Unfortunately we do not have a control which can control both temperature and humidity. We offer our model 8570 programable thermostat and our model 58 Aprilaire automatic humidifier control which you may consider. Please visit us at aprilaire.com to learn more about these products.
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