Welcome to the installation manual for the Aprilaire 700 whole-home humidifier. This guide provides step-by-step instructions for proper installation, setup, and troubleshooting. Ensure optimal performance and safety.
Preparation for Installation
Before starting, ensure power and water supply are turned off. Verify system compatibility and gather necessary tools and materials. Read the manual carefully for safety guidelines.
Tools and Materials Needed
To install the Aprilaire 700, gather essential tools and materials. You will need a drill, screwdrivers, pliers, and wrenches for mounting and connecting components. Ensure you have a saddle valve for water supply installation and a wiring diagram for electrical connections. Additionally, obtain a 14-3/4 x 14-5/6 inch plenum opening template if mounting on the supply plenum. Have a voltage tester handy to verify power connections. Use the provided evaporator assembly and water level sensor carefully to avoid damage. All necessary hardware, like screws and brackets, should be included in the installation kit. Proper preparation ensures a smooth and efficient installation process.
Safety Precautions
Before starting the installation, ensure the power and water supply to the humidifier are turned off. Do not alter the 120 VAC plug or hardwire the unit, as this could cause electrical hazards. Avoid installing the humidifier on a plenum face that has been blanked off, as this may restrict airflow. Always follow local, state, and federal codes during installation. Read the entire manual carefully to understand all safety instructions and installation steps. Wear protective gear, such as gloves and safety glasses, when handling tools and materials. Never bypass safety features or skip precautions to avoid injury or damage. Proper adherence to these guidelines ensures a safe and successful installation process for the Aprilaire 700 humidifier.
Understanding the Aprilaire 700 Components
The Aprilaire 700 humidifier consists of several key components that work together to provide efficient humidity control. The water panel evaporator assembly is responsible for moisture evaporation into the airflow. The humidistat regulates humidity levels by sensing the relative humidity (RH) in the home. The water level sensor monitors water flow and ensures proper operation. Additionally, the unit includes a fan to circulate air through the water panel. Other components like the control board and wiring connectors manage electrical operations. Familiarizing yourself with these parts is essential for proper installation, maintenance, and troubleshooting. Each component plays a critical role in ensuring the humidifier functions efficiently and safely.
Installation Steps
Installing the Aprilaire 700 involves preparing the site, mounting the unit, connecting water and electrical components, and testing the system. Ensure power and water are turned off before starting. Follow all safety guidelines and local codes for a successful installation.
Choosing the Installation Location
Choosing the right location for your Aprilaire 700 is crucial for optimal performance. The humidifier can be installed on either the supply plenum or the cold air return of your HVAC system. Ensure the location allows easy access for maintenance and has enough space for the unit. Avoid areas with restricted airflow or where water drainage might be an issue. If installing on the supply plenum, make sure it’s downstream of the heating coil to prevent damage from high temperatures. Always follow local codes and manufacturer recommendations for the best results.
Mounting the Humidifier
Mounting the Aprilaire 700 requires careful planning to ensure proper installation. Begin by selecting a location with adequate space and access for maintenance. Ensure the plenum opening meets the specified dimensions (14 3/4 x 14 5/6 inches) for the humidifier. Turn off the power and water supply before starting. Use the provided mounting hardware to secure the unit to the plenum or return duct. Ensure the humidifier is level and firmly attached to avoid vibration. If installing on the supply plenum, position it downstream of the heating coil to prevent damage from high temperatures. Do not over-bend the water level sensor assembly during installation. Double-check all connections before restoring power or water supply. Proper mounting ensures efficient operation and prevents potential issues.
Connecting the Water Supply
To connect the water supply for the Aprilaire 700, locate a nearby water supply line and install a saddle valve. Turn off the water supply before proceeding. Open the humidifier’s water panel and ensure the water level sensor is properly aligned. Connect the water supply line to the humidifier’s inlet, ensuring a secure fit to prevent leaks. Turn the water supply back on slowly and check for any signs of leakage. If leaks occur, tighten the connections and verify the saddle valve is properly seated. Avoid over-tightening, which could damage the valve or tubing. Proper water supply connection is essential for optimal performance. Always follow safety guidelines to prevent water damage or electrical hazards.
Installing the Humidistat
Begin by selecting a central location for the humidistat, away from direct sunlight and drafts, to ensure accurate humidity readings. Mount it on an inside wall at a height where it can effectively monitor the air. Turn off the power to the HVAC system before proceeding with any wiring. Connect the humidistat to the Aprilaire 700’s control board, following the wiring diagram provided in the manual or online resources. Set the humidistat between 30% and 50% humidity for optimal indoor comfort. Test the system by adjusting the settings and observing the humidifier’s response. Ensure the humidistat is compatible with the Aprilaire 700 and perform any necessary maintenance to keep it calibrated and functioning correctly. If unsure about wiring, consider consulting a professional to avoid electrical issues.
Wiring and Electrical Connections
Ensure the power is off before starting. Follow the wiring diagram to connect the humidistat and humidifier. Use 18/5 or 18/7 wires for proper connections. Consult a professional if unsure.
Wiring the Humidistat
Wiring the humidistat for the Aprilaire 700 requires careful attention to ensure proper functionality. Begin by turning off the power to the HVAC system and humidifier. Locate the terminal connections on the humidistat, typically labeled for specific functions like “R” (24VAC), “C” (common), and “W” (humidifier). Use 18/5 or 18/7 wires to connect the humidistat to your HVAC system’s thermostat or control board. Refer to the wiring diagram provided in the manual to match the correct terminals. Ensure all connections are secure and follow the manufacturer’s instructions. If unsure, consult a licensed electrician or the installation manual for guidance. Proper wiring is essential for accurate humidity control and system safety.
Connecting to the HVAC System
Connecting the Aprilaire 700 to your HVAC system ensures seamless integration and proper humidification. Begin by identifying the correct location on your HVAC system, typically the supply plenum or return duct. Mount the humidifier according to the manufacturer’s guidelines, ensuring it is level and secure. Connect the ductwork to the humidifier’s outlet, making sure it aligns with the system’s airflow. Use a current sensing relay to monitor the HVAC system’s operation and trigger the humidifier when needed. Ensure all connections are airtight to prevent leaks and maintain efficiency. Refer to the wiring diagram for specific terminal connections. Finally, test the system to ensure proper operation and adjust settings as necessary for optimal performance. Always follow safety guidelines and manufacturer instructions during installation.
Testing Electrical Connections
After wiring the humidistat and connecting to the HVAC system, thoroughly test all electrical connections to ensure proper function. Turn off the power supply before testing. Use a multimeter to verify voltage at the humidistat terminals, confirming it matches your HVAC system’s requirements. Check for continuity between wires and ensure all connections are secure. Turn the power back on and test the system by running the HVAC in heating mode. Verify the humidifier activates correctly and deactivates when humidity levels are reached. Inspect for any signs of short circuits or faulty connections. Refer to the wiring diagram for specific terminal assignments. Proper testing ensures reliable operation and prevents potential safety hazards. Always follow safety guidelines during electrical testing.
Post-Installation Steps
After installation, set up the humidistat, check water flow, and verify humidity levels. Perform a final inspection to ensure all components function correctly and safely.
Setting Up the Humidistat
After installation, configure the humidistat to regulate humidity levels accurately. Place the humidistat in an area representative of your home’s average humidity, avoiding direct sunlight or drafts. Set the desired humidity level between 30-50% for optimal comfort and indoor air quality. Understand the difference between manual and automatic modes. In manual mode, the humidistat maintains a fixed humidity level, while automatic mode adjusts based on outdoor temperature. Ensure the humidistat is properly connected to the HVAC system to synchronize operation. Refer to the Aprilaire 700 manual for specific calibration instructions. Regularly monitor and adjust settings to maintain ideal humidity levels, preventing over-humidification or dryness.
Checking Water Flow and Humidity Levels
First, ensure the water supply is on and the saddle valve is fully open. Inspect the water supply line for kinks or blockages. Check the water panel or evaporator pad for moisture; a dry pad indicates no water flow. Verify the humidistat’s accuracy by using a hygrometer to measure humidity levels in different areas of your home. Compare these readings with the humidistat’s settings and adjust if necessary. Check the humidity levels in both manual and automatic modes to ensure proper operation. In manual mode, the humidifier should run continuously until the set humidity level is reached. In automatic mode, it should cycle based on outdoor temperatures. Regularly monitor these settings to maintain optimal humidity levels and prevent issues like mold growth or dry air. Ensure the humidistat is located in a representative area of your home for accurate readings. Additionally, check and replace the water panel every 6 months to maintain proper function. Finally, verify that the bypass duct is correctly installed and the damper operates properly to ensure the humidifier works efficiently with your HVAC system.
Final Inspection and Testing
After completing the installation, perform a thorough inspection to ensure all components are correctly installed and functioning properly. Turn off the power and water supply before starting any tests. Inspect the humidifier, ductwork, and electrical connections for any signs of damage or misalignment. Ensure the water panel is securely in place and the humidistat is set to the desired humidity level. Turn the power back on and check for leaks in the water supply line and connections. Test the humidistat by adjusting the settings to verify the humidifier cycles on and off correctly. Check the bypass damper operation to ensure it opens and closes properly during operation. Verify that the humidifier operates quietly and does not vibrate excessively. Finally, ensure the unit integrates correctly with your HVAC system and maintains consistent humidity levels throughout your home. If any issues arise, refer to the troubleshooting section for guidance.
Troubleshooting Common Issues
Common issues include incorrect wiring, low humidity levels, or water leaks. Check connections, ensure proper water flow, and verify humidistat settings. Refer to the manual for solutions.
Common Installation Mistakes and Solutions
One common mistake is incorrect wiring, leading to malfunction. Ensure all connections match the wiring diagram. Another issue is improper plenum installation, which can restrict airflow. Verify the plenum opening size matches the recommended 14 3/4 x 14 5/6 inches. Additionally, neglecting to turn off power and water before starting can cause safety hazards. Always disconnect utilities beforehand. Improper humidistat setup is another error, resulting in poor humidity control. Follow the manual to configure settings accurately. Finally, ignoring local installation codes can void the warranty. Ensure compliance with all regulations for a safe and efficient setup.
Adjusting Humidity Levels for Optimal Performance
Adjusting humidity levels on the Aprilaire 700 ensures a comfortable and healthy indoor environment. Start by setting the humidistat between 30% to 50% relative humidity, with 35% being a good initial setting. If the air feels too dry, incrementally increase the setting; if too moist, decrease it. Regularly inspect the water panel for cleanliness and proper water flow to maintain efficiency. Utilize the automatic mode for temperature-based adjustments, but switch to manual mode for precise control when needed. Seasonal adjustments may be necessary, with higher settings in winter and lower in summer. Ensure the humidistat is centrally located for accurate readings. Monitor humidity levels post-adjustment and consider using a hygrometer for verification. If issues persist, consult the troubleshooting guide for potential solutions.
Installing and maintaining the Aprilaire 700 whole-home humidifier is a straightforward process when following the guidelines outlined in this manual. Proper installation ensures optimal humidity control, energy efficiency, and system longevity. Always refer to the manufacturer’s instructions and safety precautions to avoid common installation mistakes. Regular maintenance, such as replacing the water panel and cleaning the humidifier, is essential for peak performance. By adjusting humidity levels based on seasonal changes and monitoring system operation, you can create a comfortable and healthy indoor environment. If issues arise, consult the troubleshooting section or contact a qualified professional. With correct installation and care, the Aprilaire 700 will provide reliable service for years to come.