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Defines the types of safety advisories used in the manual: Warning, Caution, and Notice.
Discusses the impact of man-made chemicals on the earth's stratospheric ozone layer.
Outlines the importance of responsible refrigerant handling and technician certification.
Emphasizes qualified personnel for field wiring and grounding to prevent fire and electrocution hazards.
Stresses the necessity of wearing proper PPE for electrical, mechanical, and chemical hazards.
Mandates adherence to Environmental, Health, and Safety (EHS) policies for personnel.
Describes the fresh air adjustment panel's function of providing outside air.
Advises on inspecting the unit for damage upon receipt, covering exterior and concealed damage.
Lists the components included with the fresh air damper assembly.
Provides step-by-step instructions for installing the BAYDMPR310* model.
Provides step-by-step instructions for installing the BAYDMPR311* model.
This manual describes the installation of the Fresh Air Damper, designed for use with Medium Foundation Light Commercial Rooftops. Specifically, it covers models BAYDMPR310* and BAYDMPR311*, which are compatible with EBC 090-150 and GBC 090-150 units. The primary function of this fresh air damper is to introduce a fixed quantity of outside air into the conditioned space once the hood is installed and powered. This allows for improved indoor air quality by providing up to 33% outside air.
The installation process for both damper models begins with opening the unit disconnect switch for safety. For the BAYDMPR310* model, the filter access door and outside air panel screws are removed, and these screws are saved for later use. A provided wiring harness is then connected to a 12-pin plug in the R/A section. The hood and damper panel are secured to the unit outside air panel using four screws, with the remaining screws from the initial removal being utilized. Finally, the filter/mist eliminator is installed into the fresh air hood, held in place by a spring hinge, and the unit disconnect switch is closed.
The BAYDMPR311* model follows a similar installation procedure, also starting with opening the unit disconnect switch and removing screws from the filter access door and outside air panel for later use. The hood and damper panel are secured to the unit outside air panel with four screws, again using the remaining screws from the initial removal. A key difference for the BAYDMPR311* is the ability to adjust the damper blade to a desired position setting, offering a degree of control over the fresh air intake. After adjustment, the filter/mist eliminator is installed into the fresh air hood using the spring hinge, and the unit disconnect switch is closed.
Both models feature a filter/mist eliminator that is designed for easy maintenance. It can be removed for cleaning by simply bending the spring hinge. This feature ensures that the fresh air introduced into the system remains clean and free of particles, contributing to the overall efficiency and longevity of the unit. The manual emphasizes the importance of proper installation and maintenance to ensure the safe and effective operation of the fresh air damper.
Before installation, a thorough pre-installation inspection is crucial. This includes a general overview of the unit, noting that the fresh air adjustment panel with the hood is designed to provide up to 33% outside air. An immediate unit inspection upon receipt is required to protect against loss due to transit damage. This involves an exterior inspection to check for any visible shipping damages to the unit or packing material. If damage or material shortages are found, a claim must be filed with the carrier immediately, and the appropriate sales representative should be notified. It is critical not to proceed with the installation of a damaged unit without the sales representative's approval.
The exterior inspection also includes verifying that the nameplate data matches the sales order and bill of lading, confirming that the unit is properly equipped and there are no material shortages, and ensuring that the power supply complies with the unit nameplate specifications.
In addition to the exterior check, an inspection for concealed damage is necessary as soon as possible after delivery and before storage. If concealed damage is discovered, the carrier's terminal must be notified immediately by phone and mail, and the damage must be reported within 15 days. An immediate, joint inspection with the carrier and consignee should be requested, and unpacking of the unit should cease. Damaged material should not be removed from the receiving location, and photos of the damage should be taken if possible. The owner is responsible for providing reasonable evidence that the damage did not occur after delivery.
The parts list for the fresh air damper includes the damper assembly, an O/A (Outside Air) cover panel, and a filter. These components are essential for the proper function and installation of the unit.
The manual also includes important safety warnings and environmental concerns. It stresses that only qualified personnel should install and service the equipment due to the hazardous nature of heating, ventilating, and air-conditioning equipment. Improper installation, adjustment, or alteration by an unqualified person can lead to death or serious injury. Technicians are advised to observe all precautions outlined in the literature and on the unit's tags, stickers, and labels.
The document defines three types of advisories: "WARNING" for potentially hazardous situations that could result in death or serious injury, "CAUTION" for situations that could result in minor or moderate injury or unsafe practices, and "NOTICE" for situations that could result in equipment or property-damage only accidents.
Regarding environmental concerns, the manual highlights that scientific research has shown certain man-made chemicals, particularly refrigerants containing Chlorine, Fluorine, and Carbon (CFCs) and Hydrogen, Chlorine, Fluorine, and Carbon (HCFCs), can affect the earth's stratospheric ozone layer when released into the atmosphere. Trane advocates for the responsible handling of all refrigerants, including industry replacements like saturated or unsaturated HFCs and HCFCs.
Important responsible refrigerant practices are emphasized, stating that Trane believes these practices are crucial for the environment, customers, and the air conditioning industry. All technicians handling refrigerants must be certified according to local rules. In the USA, the Federal Clean Air Act (Section 608) outlines requirements for handling, reclaiming, recovering, and recycling certain refrigerants and the associated equipment. Technicians are also reminded that some states or municipalities may have additional requirements for responsible refrigerant management.
Further safety warnings include the necessity of proper field wiring and grounding, which must be performed by qualified personnel to avoid fire and electrocution hazards. All field wiring must comply with NEC and local/state/national electrical codes. Personal Protective Equipment (PPE) is also mandatory for technicians. Failure to wear proper PPE can result in death or serious injury. Technicians must wear all required PPE for the specific work being undertaken, such as cut-resistant gloves/sleeves, butyl gloves, safety glasses, hard hats/bump caps, fall protection, electrical PPE, and arc flash clothing. They must always refer to appropriate Safety Data Sheets (SDS) and OSHA guidelines for proper PPE. When working with hazardous chemicals, SDS and OSHA/GHS guidelines for exposure levels, respiratory protection, and handling instructions must be followed. If there is a risk of energized electrical contact, arc, or flash, technicians must wear PPE in accordance with OSHA, NFPA 70E, or other country-specific requirements for arc flash protection before servicing the unit. No switching, disconnecting, or voltage testing should be performed without proper electrical PPE and arc flash clothing. Electrical meters and equipment must be properly rated for the intended voltage.
Finally, all personnel, both Trane and non-Trane, are instructed to follow Environmental, Health, and Safety (EHS) policies and local regulations, especially for tasks like hot work, electrical work, fall protection, lockout/tagout, and refrigerant handling. Where local regulations are more stringent than company policies, the local regulations supersede.
General| Series | BAYDMPR311 |
|---|---|
| Material | Galvanized Steel |
| Control | Motorized |
| UL Rating | UL 555S |
| Application | HVAC systems |
