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Need help?Do you have a question about the Aprilaire 600 series and is the answer not in the manual?
Installers must be qualified, follow codes, and be aware of electrical shock, sharp edges, and scalding hazards.
Avoid installation in freezing temperatures, on furnace jackets, or where condensation may occur.
Details the physical size of the humidifier and required opening dimensions for installation.
Specifies the water consumption rate and electrical requirements (voltage, frequency, amperage).
Illustrates examples of upflow and horizontal installation configurations for the humidifier.
Recommends using hot water for maximum evaporative capacity and performance.
Provides wiring diagrams for both Digital (Model 600) and Manual (Model 600M) humidifier controls.
Instructions for disassembling the humidifier, cutting the plenum opening, and preparing for mounting.
Guidance on connecting the bypass duct, installing the evaporator assembly, and positioning the damper handle.
Details on mounting the Manual and Digital humidifier controls to ducts or walls.
Instructions for connecting the water supply via saddle valve and running the drain line.
Steps to check humidifier operation, ensure secure connections, and verify damper position.
The Aprilaire Model 600 Series Humidifier is designed to integrate with a forced air handling system to provide optimal humidity control within a home. This device is intended for installation by a qualified heating and air conditioning contractor, ensuring compliance with all local, state, and federal codes, as well as good building practices for proper humidification.
The primary function of the Aprilaire Model 600 Series Humidifier is to introduce moisture into the air of a home, thereby maintaining a comfortable and healthy indoor humidity level. It operates by evaporating water, which is then distributed throughout the home via the existing forced air system. The humidifier can be installed on either the supply or return plenum of the air handling system, offering flexibility in placement. It is designed to work with both cold and hot water sources, though hot water (up to 140°F) is strongly recommended for maximum evaporative capacity, especially when integrated with a heat pump system, as the heated water supplements the reduced supply air temperature for more efficient evaporation.
The Model 600 features a Digital Humidifier Control, which allows for precise management of humidity levels. This control can be mounted on the return duct or on a wall in the living space, providing options for user access and aesthetic integration. The digital control includes an outdoor temperature sensor for automatic mode operation, which helps prevent condensation damage by adjusting humidity levels based on external conditions. For systems where a digital control is not desired, the Model 600M offers a Manual Humidifier Control, which can also be mounted in the return duct or on a wall. Both control types ensure that the humidifier only operates when the furnace is on and the relative humidity is below the set-point, preventing unnecessary operation and potential issues.
The humidifier utilizes a bypass duct connection, which can be configured for either right-hand or left-hand installation, allowing for adaptability to various HVAC system layouts. Water is supplied to the unit via a 1/4" copper tubing connection from a saddle valve, which taps into the home's water supply. A drain line (1/2" I.D. hose) is also required to remove excess water, ensuring proper operation and preventing water accumulation. The integral damper within the unit can be set to "WINTER" (open) for the heating season to allow humidification, and "SUMMER" (closed) for the cooling season when humidification is not needed.
The Aprilaire Model 600 Series Humidifier is designed for user-friendly operation once installed. The Digital Humidifier Control (Model 600) offers an automatic mode that intelligently adjusts humidity output based on outdoor temperature, minimizing the risk of condensation on windows and other surfaces in unheated spaces. Users can set their desired humidity level, and the system will maintain it automatically. The manual control (Model 600M) provides a straightforward knob for adjusting humidity, giving users direct control over the humidification process.
The reversible design of the humidifier allows for flexible installation with either right-hand or left-hand bypass duct connections, accommodating different furnace and ductwork configurations. This adaptability simplifies the installation process for contractors and ensures optimal placement within the existing HVAC system. The unit's ability to use hot water significantly enhances its evaporative capacity, making it particularly effective in colder climates or with heat pump systems where supply air temperatures might be lower.
A key usage feature is the integral bypass damper, which allows users to easily switch between humidification (WINTER setting) and non-humidification (SUMMER setting) modes. This manual adjustment helps conserve water and energy during seasons when humidification is not required. The humidifier's robust design ensures reliable operation, contributing to a more comfortable and healthier indoor environment by preventing issues associated with dry air, such as static electricity, dry skin, and damage to wood furnishings.
Maintenance of the Aprilaire Model 600 Series Humidifier is designed to be straightforward, ensuring long-term performance and efficiency. The device features an easily accessible design for routine checks and component replacement. To access the internal components, the top and bottom tabs of the cover can be pressed to remove it. The feed tube and Water Panel® Evaporator assembly can then be pulled out, allowing for inspection and replacement.
The Water Panel® Evaporator is a critical component that requires periodic replacement to maintain optimal performance. The design allows for easy removal and insertion of this panel. The scale control insert, located at the bottom of the evaporator assembly, helps manage mineral buildup, which is common with water-based humidifiers. Regular inspection of this insert and the Water Panel® Evaporator is recommended to ensure efficient operation and prevent excessive mineral accumulation.
The saddle valve, used to tap into the water supply, is designed to be fully opened or closed, simplifying water flow management for maintenance or troubleshooting. It should not be used to regulate flow, which helps prevent premature wear or malfunction. The drain line, which carries away excess water, should be checked periodically to ensure it has a constant downward slope and is free of kinks, preventing water backup and potential damage.
The overall design emphasizes ease of serviceability, with components like the solenoid valve and wiring connections being accessible for inspection and repair. The manual provides clear instructions for checking humidifier operation, including verifying water flow to the drain, ensuring all electrical connections are secure, and confirming that plumbing connections are watertight. These steps are crucial for ensuring the humidifier functions properly after installation or maintenance, contributing to its longevity and consistent performance.
General| Water Feed Rate | 3.0 gallons per hour |
|---|---|
| Voltage | 24 VAC |
| Type | Bypass |
| Capacity | 4000 sq ft |
| Evaporation Capacity | 0.70 gallons per day (17.5 pints per day) |
| Control Type | Automatic or Manual |
| Installation | Mounted on HVAC ductwork |
| Humidity Control | Automatic or Manual |
| Water Panel Life | 1 season |
| Water Usage | Up to 17 gallons per day |
