Thank you for contacting us with regards to our model 8463 Thermostat. Our products are not sold through retail suppliers such as Lowe's or Home Depot. For companies that can help you with obtaining and installing our products, please visit us online at www.aprilaire.com and enter your ZIP code into our dealer locator on the upper-right hand corner of each page.
We appreciate the opportunity to be of assistance. 

Thank you for contacting us regarding your humidifer. The unit can function equally well on both the supply and return side. The air flow will always be going from the supply to the return and will provide for excellent evaporation.

Thank you for contacting us with regards to your model 5000 Electronic Air Cleaner. The air cleaner control works on a negative signal logic, meaning that when it sees no connection to the furnace or thermostat, it assumes the fan is running and the air cleaner is working. The control needs to be wired in properly in order to truly see when the fan is active or not. If it still shows Filtering when the control is connected, there may be a problem with the wiring. We would recommend that you contact your installer to troubleshoot the installation further.

We appreciate the opportunity to be of assistance.

Thank you for contacting us with regards to your model 8365 Thermostat. This model does not have the Progressive Recovery feature. And you are correct in your definition of the term. Without that feature, this means that the thermostat will adjust its set points based on the schedule that has been preset. If the new temperature is higher than the previous set point by enough degrees, the thermostat may call for the auxiliary heat to engage. Aprilaire thermostats with this feature that are similar to yours are the 8465, 8570 and 8600. With this feature, the thermostat will anticipate the next setting and activate the heating or cooling equipment early to reach the next set point at the scheduled time.
Please let us know if we can be of further assistance.

Thank you for your email regarding your interest in our model 600 Aprilaire humidifier. The model 600 humidifier control includes a humidistat which has an on board manual mode resistor. If you decide to use the outdoor sensor you will need to move the manual/auto switch on the humidifier control from manual to auto. This allows the control to use the outdoor sensor instead of the onboard manual resistor. You can extend the outdoor sensor using thermostat wire which is typically 18 gauge. The maximum length you can extend it is 300 feet.

Is there a way to turn off the "Progressive Recovery", and have the heating start at a programmed set time.

While the idea is great, the furnace starting up wakes us, and we do not want it to turn on before our alarms in the morning. We are fine with it not getting up to temperature right away. We would prefer to set the time it comes on and off.


Aprilaires' response:

Thank you for your inquiry about the Aprilaire thermostat model 8463.

The model 8463 "progressive recovery" function can be disabled by the following steps:
1. Press "mode" until the unit is "off".
2. Press and hold the "up arrow" and the "mode" buttons together for three seconds, the screen will change.
3. Press the "mode" button until the menu item "15", progressive recovery, appears.
4. Press the "down arrow" button to change from "1" to "0".
5. Press the "mode" button until the word "done" appears, and press "mode" one more time.

This will set the thermostat to start the heating/cooling at the time specified in your schedule.

Thank you for the opportunity to help in this matter.

Thank you for contacting Aprilaire.

Yes, the model 600 humidifier should be enough to humidify a home of 1700 sq feet. You should run hot water to the humidifier for best operation.

Please let us know if you have any further questions.

Thank you for contacting us with regards to your model 8466 Thermostats. There are two requirements for dual fuel mode. The thermostat must be in heat pump mode (set by the switch on the back), and the auxiliary heat must be set to Gas or Oil. Under these conditions, whenever the thermostat stages from compressor to auxiliary, the thermostat will lock out the compressor.

This thermostat can also act as a fossil fuel kit. When the outdoor temperature sensor is installed and enabled, the thermostat enables settings for high and low balance points. The high balance point will lock out the auxiliary heat when the outdoor temperature rises above that level. The low balance point locks out the compressor when the outdoor temperature falls below that level. In-between, the thermostat will stage based on demand. Please see your installation instructions for more information.

We appreciate the opportunity to be of assistance.

Thank you for your email regarding your model 600A Aprilaire humidifier. The model 60 humidifier control requires air movement to ensure the humidity sensor on the back of the humidifier control gets an accurate reading of the humidity. When mounted to a wall it is difficult for air to get behind the humidistat. Our recommendation would be to install the manual humidistat our model 4655.

Thank you for contacting Aprilaire.

Yes, you may use the 8446 thermostat for your needs. It is designed for use with a heat pump, and the "temperature spread out" is adjustable from one to four degree differences.

What Thermostats work well with the humidifiers?


Aprilaires' response:

Thank you for your email regarding your model 600A Aprilaire humidifier. Some thermostats can control humidifiers if they have humidifier terminals. Aprilaire does not manufacture a thermostat which can control a humidifier. We ask for you to check with local heating contractors in your area for the thermostat they would recommend to use. As long as the thermostat has humidifier terminals that have dry contacts it can operate your model 600A.

Consumer question:

Do you have a model that can be used as a retrofit for a downflow furnace with a 20x25x1 filter?


Aprilaires' response:

Thank you for contacting us regarding our Aprilaire air cleaners. We have two models that will fit for 20 x 25. Our model 2210 and 4200. The 2210 is shipped with a MERV 10 filter but can be upgraded to the MERV 13. The 4200 ships with the MERV 13 filter and the electronic air cleaner control. Please view the attached literature for the air cleaner products.

You can contact an Aprilaire dealer regarding pricing and installation availability. To find a local dealer, enter your zip code in the dealer locator at www.Aprilaire.com. If you don't have an Aprilaire dealer in your area, feel free to contact any licenced HVAC company for pricing and 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.

Thank you for contacting us about your 1710A dehumidifier.The 1710A is a great portable unit for use in spaces that are open and have good air flow from room to room. If your space is sectioned off into separate rooms that can be closed off from each other than the 1710A will not work as effectively as you might like.

In these situations we recommend going with a whole-home unit such as the 1750A. The 1750A would connect to your duct work and dehumidify the home equally. This may be your better option. The 1750A should cost about the same as the 1710A but there would be a charge for a dealer to install it. I would recommend contacting a dealer about installation prices.

Please contact us at 1-800-334-6011 for any further questions.

Thank you for contacting us with regards to your model 8570 Thermostat. The outdoor temperature sensor would not necessarily fail if it were covered, but only if the wires were cut or disconnected. In order to register the correct temperature, it should be placed outside, on a non-south facing of the home, away from any exhaust vents and above any potential snow line. Failure to do so could result in an incorrect temperature reading. If your thermostat has lost connection to the temperature sensor entirely, the failure could be with the sensor, the wire or the thermostat. Try removing the faceplate of the thermostat, give it 10-15 seconds to power down and then plug it back in. If the outdoor temperature comes back, it may have simply lost connection at some point. If it does not come back, you may need to have your installer or another HVAC contractor test the sensor. It should be tested at the wires inside the thermostat as well as at its installation position outside. If the sensor has failed, it should be replaced with part #8052. If the wire has failed, it might be possible to repair the wire, or else it should be replaced.
Please let us know if you have any further questions.

Thank you for choosing the Aprilaire thermostat.

The directions for changing the display to read Celsius is as follows:
1. Set the mode to the off position
2. Hold the "up" arrow and "mode" buttons together and hold until the display changes.
3. Press the "mode" button until the display shows menu "01"
4. Press the "up" arrow to change the smaller case blinking "0" to "1".
5. press the "mode" button (multiple times) until the word "done" appears

This should save the settings and exit back to the main screen; now showing temperature in Celsius.

 

Thank you for calling us regarding your Aprilaire Model 8465 Thermostat. To change the program mode, you need to access the advanced set-up options. Option 19 will allow you to adjust the program between 5/2 and 5/1/1.
Turn the thermostat mode to Off. Press the Mode and Up arrow buttons simultaneously for about 3 seconds, until the display changes to a large 01. Press the Mode button to advance to the 19 option. When this happens, you should see a smaller number 0 in the upper right-hand corner. Press the Up arrow to change this to 1. Once you've done so, don't press any buttons for about 10 seconds and the screen should revert to the main display. When you set the program, your options should show the separate weekend schedules. Finally, change the mode back to the previous setting.
We appreciate the opportunity to be of assistance.

Consumer question:

Do you still make PerfectTemp DSL-700 thermostat?  I can't read the digital readout anymore but it otherwise works fine.


Aprilaires' response:

Thank you for contacting us with regards to your model DSL-700 Thermostat. This thermostat has been discontinued for many years. Currently, our replacement thermostat would be Aprilaire #8448, though #8466 would also work. Attached is a brochure of this product line. Please let us know if we can be of further assistance.

Aprilaires' response:

Thank you for contacting us.  The batteries are for installations where the control is not receiving it's power from the thermostat or the HVAC equipment.  The blue light on the screen will stay on continuous if the control is powered continuously from the thermostat or the HVAC equipment.  If the unit is powered by batteries, then the blue back light will only stay lit after pushing a button on the control for 5-10 seconds.  If your control is receiving power from the thermostat or the HVAC equipment and has batteries, then the batteries are a back up power source in case of a power outage.

 

Thank you for this opportunity to be of assistance.

 

Thank you for contacting us with regards to your Model 8363 Thermostat. This model has a reset button on the circuit board below and to the left of the display. You can try pressing this button once to see if the thermostat will turn back on. If not, and if removing and reinstalling the batteries does not reset it, the thermostat will need to be replaced. At this point, the 8363 has been discontinued. In our current line of products, the replacement model will be 8463. We recommend that you contact your installer if a replacement is needed.

Please let us know if we can be of further assistance.