In this article:
- Device & Installation Overview
- Duct Placement
- Wiring & Power
- Wireless Configuration
- Completing the Installation
Device & Installation Overview
The Central Air Monitor Installation Instructions are included in the HAVEN Pro Training program via the HAVEN Pro Portal. We recommend that all HAVEN Professionals complete the HAVEN Pro Training before installing or servicing any HAVEN device.
If you'd prefer to watch a video installation guide, check out the video below:
Requirements for Installation
Ducted central air system
Suitable for any duct (round and rectangular). Minimum 8" wide
Within the range of WiFi
WPA or Open
HAVEN Central Air Monitor Kit
Central Air Monitor
2mm slotted screwdriver
Wago splicing connectors
~12ft of 2 wire cable (18-24 gauge)
Optional - 24VAC wall plug
Hole saw (1 ½” for rectangular ducts, 2” for round ducts)
1/4” hex driver
Android or iOS phone
Optional - non-contact voltage testing tool
Just one thing before we kick off the installation: Do not screw the faceplate to the duct until the angle validation step is completed in the IAQ App. You'll thank us for eliminating any extra work, and your customer's ductwork will remain in good condition.
1. Turn off the furnace power.
Do not proceed unless this is complete.
2. Open the furnace door to reveal the furnace control board.
3. Determine the optimal Central Air Monitor location.
What to look for
The Central Air Monitor can be installed on both round and rectangular RETURN ducts that are a minimum of 8” in diameter. Optimal location is 24” ahead of the furnace filter in a straight section of the return duct to avoid air turbulence — avoid installing within 24” of a 90-degree elbow.
Airflow in the duct
The Central Air Monitor needs to be installed so that the probe is perpendicular to the airflow; this will ensure that the device accurately measures airborne particles and chemicals. The HAVEN IAQ app allows you to optimize the exact angle at which it’s installed. This helps increase the stability of the airflow signal and maximize the airflow speed through the probe’s air channels.
The Central Air Monitor requires 0.4 m/s or 80 fpm of airflow to accurately report data. We recommend confirming this level of airflow with an anemometer prior to installing the probe.
Within WiFi range
Use a WiFi-enabled device like your phone to make sure that the proposed mounting location is within range of the home’s WiFi network. Open the WiFi settings on your device to ensure it shows up on the list of detectable networks.
4. Mark the location & drill a hole in the center of the duct.
For rectangular ducts: use a 1 ½” hole saw
For round ducts: use a 2” hole saw
Wiring & Power
1. Run a length of wire cable (18-24 gauge) from the inside of the furnace to the outside where the Central Air Monitor will be installed. Leave some slack for any future maintenance.
Use a knockout that allows the cable to stay put even when the furnace door is closed. Leave another 4ft of length before snipping the cable to ensure that it reaches the desired Central Air Monitor location in the duct.
2. Using wire strippers, strip the jacket off both ends of the cable.
Make sure to leave ½” of exposed conductor on each wire.
3. Connect the Central Air Monitor to power.
There are multiple methods to connect the Central Air Monitor to power. It is advised to use a non-contact voltage testing tool to confirm that the power is not live before modifying furnace wiring.
Method 1: Furnace Transformer (recommended)
Find the 24VAC lines (these are usually yellow). Using wire strippers, strip the jacket off the wires, leaving ½” of exposed conductor on both ends of the cable. Using an inline, twist on, push on, or splicing connectors, connect the two ends of the new cable to the dedicated transformer.
Method 2: Furnace Control Board
Inside the furnace, loosen the terminal screws of the “R” and the “C” terminals. Insert one wire into the “C” terminal and the other one into the “R” terminal. Tighten the screws securely.
Method 3: External Transformer
You may want to power the Central Air Monitor a wall outlet. If so, we recommend using a 24VAC wall plug as shown in the photo. As with the previous methods, it does not matter which terminal each wire is connected to.
Note: To avoid shorting the other side of the wires, avoid plugging this into the wall until STEP 9 is complete.
4. Close the furnace door & secure any screws.
Configure Central Air Monitor to homeowner’s account.
After the LED light turns blue, slide the probe through the mounting plate until it clicks into place. You'll feel a small but noticable click, engaging the mounting plate interlock.
Provisioning the Central Air Monitor
Validating the Airflow
1. Validate the angle of the probe in the duct.
- Ensure Bluetooth is turned on, the HAVEN IAQ App will now connect to the HAVEN Central Air Monitor
- Turn on the forced air-system
Completing the Installation
1. Connect to homeowner's WiFi & finish the installation.
- Connect to the home’s WiFi network - your customer must supply the WiFi network name and password.
- Please note the name and password are both case-sensitive!
- Just before the installation is complete, our system will run a self-analysis on the Monitor, connectivity, and our suite of sensors:
- Cloud analysis
- Probe position
- Relative Humidity sensor
- Temperature sensor
- tVOC & PM sensors
- Confirmation of adequate system airflow
Your Central Air Monitor has now been installed but if you wish to continue onwards & install additional HAVEN hardware you can select this equipment from the following options or choose I'm Done.
- Customizing your IAQ Controls with the Central Air Controller
- Controlling Your Blower Motor with the HAVEN Central Air Controller