The Lennox Healthy Climate WB2-17 and WB2-17A are bypass humidifiers designed for residential heating and air conditioning systems. These units are intended for installation by qualified heating and air conditioning contractors and require adherence to all local, state, and federal codes. The documentation emphasizes safety precautions related to electrical shock, scalding, and potential property damage. This article details installation considerations, specifications, and safety warnings based on available documentation.
Installation Requirements and Restrictions
Installation of the Lennox WB2-17 and WB2-17A humidifiers is subject to several critical restrictions. The documentation explicitly states that installation, adjustments, alterations, service, and maintenance must be performed by a Lennox dealer. This requirement underscores the complexity of the installation process and the need for specialized expertise.
The units should not be installed on the supply plenum if the static pressure exceeds 0.3 inches of water column. Installation in locations susceptible to freezing temperatures is also prohibited, as freezing water lines can cause damage. Furthermore, the humidifier and its bypass connection should not be installed directly on the furnace jacket or on a blanked-off cooling coil end where airflow could be restricted.
Specific electrical considerations are also outlined. The transformer should not be connected to multi-speed furnace blower motors or blower motors operating on anything other than 120 VAC. Water pressure should not exceed 125 psi, and appropriate pressure reduction measures must be implemented if necessary, adhering to relevant codes.
Unit Specifications
The Lennox Healthy Climate WB2-17 & WB2-17A bypass humidifier possesses the following documented specifications:
- Unit Dimensions: 13 inches wide x 15 1/8 inches high x 9 1/8 inches deep.
- Plenum Opening: 6-inch diameter round opening.
- Water Feed Rate: 6 gallons per hour (gph).
- Electrical Data: 24V-60Hz, 0.5 AMP.
Detailed humidifier control installation and wiring instructions are available in Publication No. 504,879M, included with the humidifier. The documentation also references a template that must be level during installation.
Safety Precautions
The installation and servicing of the WB2-17 and WB2-17A humidifiers require strict adherence to safety guidelines. The documentation highlights three primary hazards: electrical shock, scalding, and risks associated with sharp edges.
Electrical Shock Hazard
Disconnecting all electrical power supplies before servicing the unit is paramount to prevent electrical shock. The documentation explicitly warns that electrical shock can cause injury or death.
Scalding Hazard
The documentation warns of the risk of scalding from water temperatures exceeding 125°F. It instructs installers to shut off the hot water supply before disconnecting or tapping into any hot water line. Scalding can occur instantly at such temperatures.
Risk of Sharp Edges
Caution is advised due to the presence of sharp edges on the equipment, which can cause injuries.
Additional Warnings and Cautions
Several additional warnings and cautions are included in the documentation. These relate to potential property damage, equipment damage, and maintaining water heating systems.
Risk of Property Damage and Injury
The documentation reiterates that installation, adjustments, alterations, service, and maintenance must be performed by a qualified Lennox dealer to mitigate the risk of property damage or injury.
Risk of Property and Equipment Damage
A caution is provided regarding the potential for damage to the water heating system if the water supply is left off. After installation, the hot water supply must be turned back on. If the main water supply remains shut off, the water heating system must be de-energized.
Humidity Level Considerations
The documentation advises against setting the humidity level above recommended levels or to the recommended level if condensation exists on inside windows in unheated spaces. Condensation can lead to property damage, and excessive humidity can promote mold growth.
Model Variations
The documentation references the WB2-17A model as having detailed humidifier control installation and wiring instructions available in Publication No. 504,879M. The documentation also lists other Lennox humidifier models, including HCWB2-12A, HCWB2-17A, HCWP2-18A, Healthy Climate WB2-12, and Healthy Climate WP2-18, along with the types of documentation available for each (user manual, owner’s manual, installation instructions, and operating instructions).
Conclusion
The Lennox Healthy Climate WB2-17 and WB2-17A bypass humidifiers require professional installation and adherence to specific guidelines to ensure safe and effective operation. Key considerations include static pressure limitations, freezing temperature avoidance, electrical compatibility, water pressure restrictions, and humidity level control. The documentation emphasizes the importance of qualified installation and servicing to prevent electrical shock, scalding, and potential property damage. Users should consult the provided documentation, particularly Publication No. 504,879M for the WB2-17A model, for detailed instructions and safety information.
Sources
The provided source material is insufficient to produce a 2000-word article. Below is a factual summary based on available data.