aprilaire installation manual 700
AprilAire 700 Installation: A Comprehensive Guide
This guide details installing the AprilAire Model 700, recommending professional HVAC installation. It covers various installation options, including supply plenum or return duct placement,
and emphasizes careful handling during the process.
Proper installation requires adherence to provided instructions and understanding wiring diagrams for furnace operation detection. Manual control mounting in the return air is also explained.
Resources like installation guides, spec sheets, and archived product information are readily available for the AprilAire 700 and 700M series humidifiers.
Understanding the AprilAire 700 Series
The AprilAire 700 and 700M represent a significant advancement in whole-house humidification technology, designed to provide optimal indoor comfort and air quality. These units are engineered to seamlessly integrate with your existing forced-air heating system, delivering consistent and reliable humidity control throughout your home. Understanding the core principles of operation is crucial for a successful installation.
The 700 series operates by utilizing a water panel evaporator, which increases the surface area for efficient water evaporation. This process adds moisture to the air as it passes over the panel, effectively raising the humidity levels. Both models – the 700 and the 700M – offer flexibility in installation, accommodating either supply plenum or return air duct configurations.
The key distinction lies in the control mechanism: the 700 operates automatically based on furnace operation, while the 700M features manual control, allowing for personalized humidity adjustments. Careful consideration of your home’s layout and heating system is essential when selecting the appropriate installation method and model.
Key Features of the AprilAire 700 & 700M
The AprilAire 700 and 700M boast several key features designed for efficient and reliable humidification. A prominent feature is their adaptability, allowing installation on either the supply plenum or directly into the return air duct, offering flexibility based on your home’s HVAC setup. Both models utilize a robust water panel evaporator, maximizing water surface area for optimal moisture output.
The 700 model distinguishes itself with automatic operation, seamlessly integrating with your furnace to maintain consistent humidity levels. Conversely, the 700M provides manual control, empowering users to fine-tune humidity settings to their precise preferences. Both units are designed for ease of maintenance, with readily accessible components for cleaning and upkeep.
Furthermore, the series incorporates a water level sensor assembly, ensuring safe and efficient operation. These features collectively contribute to improved indoor air quality, reduced static electricity, and enhanced comfort during dry winter months, making the AprilAire 700 series a valuable addition to any home.
Safety Precautions Before Installation
Prior to commencing the AprilAire 700 or 700M installation, several critical safety precautions must be observed to prevent injury and ensure proper functionality. Disconnect power to your furnace at the breaker box before beginning any electrical work. Handle the humidifier components with care, avoiding any forceful bending or damage, particularly to the delicate water level sensor assembly.
Be mindful of potential water damage during installation. Ensure the chosen installation location can accommodate potential leaks and is protected from freezing temperatures. When connecting to the cold water line, exercise caution to avoid cross-threading or damaging the plumbing.
Always follow the manufacturer’s instructions meticulously. If you are uncomfortable with any aspect of the installation process, it is strongly recommended to enlist the services of a qualified HVAC professional. Ignoring these precautions could lead to electrical shock, water damage, or improper humidifier operation.
Tools and Materials Required
Successful installation of the AprilAire 700 or 700M humidifier necessitates gathering specific tools and materials beforehand. Essential tools include a screwdriver set (Phillips and flathead), wire strippers, wire connectors, a drill with appropriate bits, a level, and a pipe cutter for the water line connection. A wrench set is also crucial for tightening plumbing fittings securely.
Beyond tools, you’ll need materials like Teflon tape for sealing water connections, electrical wiring (if needed), and potentially a water hammer arrestor to prevent water hammering in the pipes. Depending on the installation method – supply plenum or return duct – you may require sheet metal screws or duct tape.
Ensure you have the complete AprilAire 700 package contents verified (see section on package contents). Having everything readily available streamlines the installation process and minimizes delays. Safety glasses are also recommended throughout the installation.
Checking Package Contents
Upon receiving your AprilAire 700 or 700M, carefully inspect the package contents against the provided parts list before commencing installation. This crucial step ensures all necessary components are present, preventing frustrating delays mid-project; The package typically includes the humidifier unit itself, the water panel evaporator, and a water level sensor assembly.
Verify the presence of the control panel (for the 700M model), mounting hardware, and any included water supply connectors. Check for the installation manual and any supplemental documentation. Carefully examine each component for shipping damage; report any issues immediately to the supplier.
Pay close attention to smaller parts like screws, clips, and connectors, as these are easily misplaced. A thorough inventory now saves potential headaches later. Handle all components with care to avoid damage, especially the delicate water level sensor assembly.
Installation Location Considerations
Selecting the appropriate installation location is paramount for optimal AprilAire 700 performance. Both supply plenum and return air duct installations are viable options, offering flexibility based on your HVAC system’s configuration. However, accessibility for maintenance and water supply connection are key factors.
Ensure sufficient space around the unit for servicing, including access to the water panel and control panel. Avoid locations prone to freezing temperatures, as this can damage the humidifier; Consider proximity to a cold water line to minimize plumbing complexity and potential leaks.
The chosen location should also allow for proper airflow across the evaporator pad. Avoid obstructions that could restrict air circulation. Carefully assess the ductwork’s structural integrity to ensure it can support the humidifier’s weight.
Supply Plenum vs. Return Air Duct Installation
The AprilAire 700 and 700M models offer installation versatility, accommodating either supply plenum or return air duct configurations. Supply plenum installation generally provides more consistent humidity distribution throughout the home, as it introduces moisture directly into the heated air stream.
Return air duct installation, conversely, is often simpler, requiring less ductwork modification. However, it may result in slightly less even humidity levels. The choice depends on your existing HVAC setup and desired performance characteristics.
Carefully evaluate the available space and ductwork layout before deciding. Consider the ease of access for maintenance and the potential impact on airflow. Proper sealing of all connections is crucial, regardless of the chosen installation method, to prevent air leaks and ensure optimal efficiency.
Bypassing the Ductwork
Proper ductwork bypassing is essential for effective AprilAire 700 operation. This process ensures adequate airflow across the evaporator pad, maximizing humidity output. The bypass duct allows a portion of the heated air to flow around the humidifier, creating a pressure differential that draws air through the water panel.
The size of the bypass duct is critical and must be determined according to the manufacturer’s specifications. An undersized bypass restricts airflow, reducing humidifier capacity, while an oversized bypass diminishes the pressure difference.
Carefully follow the installation manual’s guidelines for bypass duct dimensions and placement. Ensure smooth transitions and minimal bends to avoid airflow obstructions. Securely seal all connections to prevent air leakage and maintain optimal system performance. Proper bypassing is key to achieving desired humidity levels.
Water Supply Connection
Connecting the AprilAire 700 to a cold water supply is a crucial step in the installation process. Use a dedicated cold water line, ideally ½ inch in diameter, to ensure sufficient water flow to the humidifier. Avoid using hot water lines, as elevated temperatures can damage the unit and affect performance.
A shut-off valve should be installed on the water supply line for easy maintenance and emergency shut-off. This allows for convenient servicing without interrupting the water supply to other fixtures. Ensure the connection is watertight to prevent leaks and potential water damage;
Consider installing a water hammer arrestor to mitigate potential water hammer issues. This device absorbs pressure surges in the water line, protecting both the humidifier and the plumbing system. Follow the manual’s instructions for proper water line connection and securing all fittings.
Connecting to a Cold Water Line
Establishing a connection to a dedicated cold water line is essential for optimal AprilAire 700 operation. A ½ inch diameter line is generally recommended to provide adequate water flow. Ensure the chosen line is easily accessible for future maintenance and servicing procedures.
Prior to connecting, thoroughly flush the cold water line to remove any debris or sediment. This prevents clogging of the humidifier’s water inlet and ensures clean water supply. Use appropriate plumbing fittings and sealant to create a watertight connection, preventing leaks.
A manual shut-off valve installed upstream of the humidifier is highly recommended. This allows for convenient isolation of the water supply during servicing or in case of emergencies. Double-check all connections for tightness and proper sealing before proceeding.
Water Hammer Arrestor Installation
Installing a water hammer arrestor is crucial to protect both your plumbing system and the AprilAire 700 humidifier. Rapidly closing valves, like the solenoid valve within the humidifier, can cause pressure surges – water hammer – potentially damaging pipes and the unit itself.
The arrestor should be installed as close as possible to the solenoid valve on the cold water supply line. This minimizes the length of pipe where pressure waves can develop. Choose an arrestor sized appropriately for the ½ inch water line used with the AprilAire 700.
Ensure the arrestor is installed in the correct orientation, as indicated by the manufacturer’s instructions. Proper installation involves securing the arrestor to a stable surface and ensuring a watertight connection to the water line. Regularly inspect the arrestor for signs of wear or damage.
Electrical Wiring
Proper electrical wiring is paramount for safe and effective AprilAire 700 operation. Always disconnect power to the furnace before commencing any electrical work. The humidifier requires a connection to a 120V AC power source, typically obtained from the furnace control board.
Wiring diagrams are essential for correct connection, illustrating recommended methods for detecting furnace operation. These diagrams detail how to connect the humidifier’s wiring to the furnace’s fan relay or other suitable power source. Ensure all connections are secure and comply with local electrical codes.
For Model 700M with manual control, a separate power connection may be needed for the control panel. Carefully follow the wiring instructions provided with the control panel to ensure proper functionality. Double-check all connections before restoring power to the system.
Wiring Diagrams for Furnace Operation Detection
Accurate furnace operation detection is crucial for the AprilAire 700’s automatic functionality. Wiring diagrams illustrate various methods for achieving this, tailored to different furnace configurations. Common approaches involve connecting to the furnace’s fan relay, utilizing a fan-on signal, or tapping into the furnace control board.
These diagrams clearly depict wire connections, color coding, and terminal designations. Carefully study the diagram corresponding to your furnace type before making any connections. Incorrect wiring can lead to humidifier malfunction or even damage to the furnace.
Ensure the wiring complies with all local electrical codes and safety regulations. If unsure about any aspect of the wiring process, consult a qualified HVAC technician. Proper detection ensures the humidifier operates only when the furnace is actively heating, maximizing efficiency and preventing unnecessary moisture.
Manual Humidifier Control (Model 700M) Installation
The AprilAire 700M features a manual control option, offering users direct regulation of humidity levels. This control can be conveniently mounted in the return air duct, providing easy access and visibility. Installation involves securing the control panel to a suitable location within the ductwork, ensuring it’s firmly attached and doesn’t obstruct airflow.
Wiring the manual control is straightforward, typically requiring connection to a 24V power source. Refer to the detailed wiring diagrams provided in the installation manual for specific instructions. Proper wiring guarantees reliable operation and prevents electrical hazards.
Once installed, the manual control allows for precise adjustment of the humidifier’s output. This is ideal for situations where automated control isn’t desired or for fine-tuning humidity levels to personal preferences. System checkout procedures should verify correct operation after installation.
Evaporator Assembly Installation
The evaporator assembly is the core component responsible for adding moisture to your home’s air. Careful installation is crucial for optimal performance. Begin by ensuring the humidifier housing is securely mounted and properly aligned with the ductwork. Gently slide the water panel evaporator assembly into the designated slot within the housing.
Take extreme care not to over-bend the delicate water level sensor assembly during this process. Damage to the sensor can lead to inaccurate readings and malfunctioning operation. Ensure the evaporator is fully seated and level before proceeding.
Re-installing the assembly requires a gentle touch and attention to detail. Once in place, double-check that all connections are secure and that the water panel is properly positioned for efficient evaporation. Proper installation ensures consistent humidity control.
Installing the Water Panel Evaporator
The water panel evaporator is the heart of the AprilAire 700’s humidification process. Begin by carefully removing the protective packaging from the water panel. Inspect it for any damage incurred during shipping; a damaged panel will compromise performance. Gently slide the water panel into the designated slots within the evaporator assembly, ensuring it sits flush and secure.
Proper alignment is critical for even water distribution and efficient evaporation; Avoid forcing the panel, as this could cause breakage. Once installed, verify that the panel is stable and won’t shift during operation.
The water panel’s ability to effectively absorb and release moisture directly impacts the humidifier’s output. Regular inspection and replacement, as recommended in the manual, are essential for maintaining optimal humidity levels within your home.
Water Level Sensor Assembly Precautions
The water level sensor assembly is a delicate component crucial for preventing overfilling and ensuring proper humidifier function. Extreme care must be taken during installation and handling to avoid damage. Avoid over-bending the sensor assembly, as this can disrupt its accurate water level detection capabilities.
Inspect the assembly for any cracks or breaks before and after installation. A compromised sensor can lead to inaccurate readings, potentially causing water leaks or inefficient operation. Ensure all connections are secure and properly seated to maintain a reliable signal.
When re-installing the water panel evaporator assembly, be particularly mindful of the sensor’s position. Avoid any contact that could strain or dislodge the sensor. Refer to the installation manual for detailed diagrams and guidance on proper placement and securing of this vital component.
Control Installation and System Checkout
Following the physical installation of the AprilAire 700, proper control installation and a thorough system checkout are essential for optimal performance. The control panel, whether automatic or manual (Model 700M), must be securely mounted in a readily accessible location, typically within the return air duct system.
Refer to the dedicated control installation manual for detailed instructions specific to your model. This manual outlines wiring connections, settings adjustments, and initial configuration steps. Ensure all wiring is correct and secure, following the provided diagrams for furnace operation detection.
System checkout involves verifying proper water supply connection, humidifier operation, and accurate humidity control. Test the system through several cycles, observing water flow, evaporation rate, and control responsiveness. Address any discrepancies immediately to ensure reliable and efficient humidification.
Mounting the Control Panel
Securely mounting the AprilAire 700 control panel is a crucial step in the installation process. For automatic models, the control is typically mounted directly to the humidifier housing or nearby ductwork, ensuring easy access for adjustments and maintenance. The Model 700M manual control can be mounted in the return air duct, providing convenient user operation.
Utilize appropriate screws or fasteners suitable for the mounting surface. Ensure the panel is level and firmly attached to prevent vibration or accidental dislodgement. Avoid locations exposed to excessive moisture or extreme temperatures, which could damage the electronic components.
Carefully route wiring to the control panel, avoiding sharp bends or strain on the wires. Proper wiring connections are essential for accurate humidity sensing and control. Refer to the installation manual for specific mounting instructions and wiring diagrams tailored to your AprilAire 700 model.
System Checkout Procedures
Following installation, thorough system checkout is vital to ensure proper AprilAire 700 operation. Begin by verifying the water supply connection is secure and free of leaks. Turn on the water supply and observe the water panel for even saturation – uneven wetting indicates potential flow issues.
Next, activate the furnace and confirm the humidifier is receiving power. Check that the solenoid valve opens and closes correctly, controlling water flow to the evaporator. Monitor the humidity levels in your home to confirm the system responds to thermostat settings.
Refer to the control installation manual for detailed checkout instructions specific to your model. Address any discrepancies or malfunctions immediately. A properly checked system delivers optimal humidity control and prevents potential damage.
Troubleshooting Common Installation Issues
During AprilAire 700 installation, encountering issues is common. Water leaks are frequently reported; immediately shut off the water supply and inspect all connections – fittings, tubing, and the humidifier base. Ensure proper sealing and tighten as needed.
Electrical connection problems can prevent operation. Verify wiring matches the provided diagrams, confirming furnace operation detection is correctly linked. Check the control panel power supply and fuse. If issues persist, consult a qualified electrician.
Uneven water panel wetting suggests flow restrictions. Inspect the water line for kinks or blockages. A malfunctioning solenoid valve can also cause this; testing or replacement may be necessary. Careful diagnosis ensures efficient humidifier performance.
Addressing Water Leaks
Water leaks during or after AprilAire 700 installation require immediate attention. The first step is to completely shut off the water supply to the humidifier. Carefully inspect all connections – the water line to the unit, fittings at the humidifier base, and the solenoid valve itself.
Tighten any loose connections, ensuring a secure fit. Examine the water panel evaporator for cracks or damage, as these can cause leaks. If the leak originates from the water level sensor assembly, avoid over-bending it during inspection and re-installation.
Persistent leaks may indicate a faulty solenoid valve or damaged tubing. Replacement of these components might be necessary. Always test the system after repairs to confirm the leak is resolved before resuming normal operation, preventing potential water damage.
Resolving Electrical Connection Problems
Electrical issues during AprilAire 700 installation can stem from incorrect wiring or a faulty furnace operation detection setup. First, ensure the furnace is completely powered off at the breaker before inspecting any connections. Double-check all wiring against the provided wiring diagrams, verifying correct wire placement.
Confirm secure connections at the control panel and the furnace. If the humidifier isn’t responding, test the solenoid valve for continuity using a multimeter. A lack of continuity indicates a faulty valve needing replacement.
For models with manual control (700M), verify the control is properly mounted and wired. If problems persist, consult a qualified HVAC technician to diagnose and resolve complex electrical issues, ensuring safe and proper operation of the humidifier.
AprilAire 700 Manuals and Resources
Accessing comprehensive documentation is crucial for a successful AprilAire 700 installation. AprilAire provides a wealth of resources, including detailed installation guides, specification sheets, and archived information for both current and discontinued models. These materials are readily available online through the official AprilAire website.
The installation guide offers step-by-step instructions, diagrams, and troubleshooting tips. Spec sheets provide technical details and dimensions for planning the installation. Archived product information is invaluable for older systems or replacement parts.
Locate these resources by searching the AprilAire website using the model number (700 or 700M). Proper utilization of these manuals ensures a safe, efficient, and compliant installation, maximizing the humidifier’s performance and longevity.
Locating Installation Guides and Spec Sheets
Finding the correct documentation for your AprilAire 700 is straightforward. Begin by visiting the official AprilAire website; it serves as the central repository for all product-related materials. Navigate to the “Support” or “Resources” section, typically found in the main menu.
Within this section, utilize the search function and enter “AprilAire 700 installation manual” or “AprilAire 700 spec sheet”. The website will display a list of relevant documents in PDF format, readily downloadable for offline access. Ensure you select the guide specifically for your model – 700 or 700M.
Alternatively, a general search on the internet using the same keywords will often lead directly to the official AprilAire documentation. Always prioritize downloading from the official source to guarantee accuracy and completeness.
Archived Product Information
AprilAire maintains an archive of information for older models, including the 700 series, even after newer versions are released. This is invaluable if you’re working with an existing installation or require parts for an older unit. Accessing this archived data often requires navigating to a specific section of the AprilAire website dedicated to discontinued products.
Look for a link labeled “Archived Products,” “Legacy Support,” or similar phrasing. Within this section, you may need to browse by product category (Whole-House Humidifiers) and then locate the 700 or 700M model. Archived information typically includes older installation guides, parts lists, and troubleshooting documents.
While the information may not be as current as the latest documentation, it can be crucial for maintaining and repairing older AprilAire 700 humidifiers. Remember to cross-reference with current safety standards and best practices when performing any work.