TRANE BAYBARO321 Barometric Relief Damper Installation Guide

TRANE BAYBARO321 Barometric Relief Damper

Specifications:

• Model Number: BAYBARO321*
• Capacity: 3 to 5 Tons
• Compatible Units: E/GB036-060, E/GD036-060

Product Information

The Barometric Relief Damper is designed for use with FoundationTM units equipped with Low Leak Economizer in the 3 to 5-ton range. It is essential for maintaining proper ventilation and air conditioning in various settings.

Installation Instructions:

1. Inspection: Check for shipping damage, compare order numbers, and replace damaged parts with authorized ones.
2. Parts List: Refer to the provided figure for the components included in the installation kit.
3. Warnings, Cautions, and Notices: Read the manual thoroughly before operating or servicing the unit to ensure personal safety and proper operation.
4. Important Environmental Concerns: Follow responsible refrigerant practices to minimize environmental impact.
5. Proper Field Wiring and Grounding: Ensure all field wiring is performed by qualified personnel to avoid fire and electrocution hazards.
6. Personal Protective Equipment (PPE) Required: Wear appropriate PPE to protect against electrical, mechanical, and chemical hazards.

FAQ:

1. Q: Can I install the Barometric Relief Damper myself?
   A: Only qualified personnel should install and service the equipment to prevent accidents or injuries. It is recommended to seek professional assistance for installation.

2. Q: What should I do if I find shipping damage?
   A: If any shipping damage is found, report it immediately and file a claim against the transportation company. Replace damaged parts with authorized replacements.

SAFETY WARNING Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.

1
Warnings, Cautions, and Notices
Read this manual thoroughly before operating or servicing this unit. Safety advisories appear throughout this manual as required. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.

The three types of advisories are defined as follows:
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It could also be used to alert against unsafe practices.

NOTICE
Indicates a situation that could result in equipment or property-damage only accidents.

Important Environmental Concerns
Scientific research has shown that certain man-made chemicals can affect the earth’s naturally occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment. Trane advocates the responsible handling of all refrigerants.

Important Responsible Refrigerant Practices
Trane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified according to local rules. For the USA, the Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

WARNING
Proper Field Wiring and Grounding Required!
Failure to follow code could result in death or serious injury. All field wiring MUST be performed by qualified personnel. Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards. To avoid these hazards, you MUST follow requirements for field wiring installation and grounding as described in NEC and your local/state/national electrical codes.

WARNING
Personal Protective Equipment (PPE) Required!
Failure to wear proper PPE for the job being undertaken could result in death or serious injury. Technicians, in order to protect themselves from potential electrical, mechanical, and chemical hazards, MUST follow precautions in this manual and on the tags, stickers, and labels, as well as the instructions below:

• Before installing/servicing this unit, technicians MUST put on all PPE required for the work being undertaken (Examples; cut resistant gloves/sleeves, butyl gloves, safety glasses, hard hat/bump cap, fall protection, electrical PPE and arc flash clothing). ALWAYS refer to appropriate Safety Data Sheets (SDS) and OSHA guidelines for proper PPE.
• When working with or around hazardous chemicals, ALWAYS refer to the appropriate SDS and OSHA/GHS (Global Harmonized System of Classification and Labeling of Chemicals) guidelines for information on allowable personal exposure levels, proper respiratory protection and handling instructions.
• If there is a risk of energized electrical contact, arc, or flash, technicians MUST put on all PPE in accordance with OSHA, NFPA 70E, or other country-specific requirements for arc flash protection, PRIOR to servicing the unit. NEVER PERFORM ANY SWITCHING, DISCONNECTING, OR VOLTAGE TESTING WITHOUT PROPER ELECTRICAL PPE AND ARC FLASH CLOTHING. ENSURE ELECTRICAL METERS AND EQUIPMENT ARE PROPERLY RATED FOR INTENDED VOLTAGE.

WARNING
Follow EHS Policies!
Failure to follow instructions below could result in death or serious injury.

• All Trane personnel must follow the company’s Environmental, Health and Safety (EHS) policies when performing work such as hot work, electrical, fall protection, lockout/tagout, refrigerant handling, etc. Where local regulations are more stringent than these policies, those regulations supersede these policies.
• Non-Trane personnel should always follow local regulations.

WARNING
R-454B Flammable A2L Refrigerant!
Failure to use proper equipment or components as described below could result in equipment failure, and possibly fire, which could result in death, serious injury, or equipment damage.
The equipment described in this manual uses R-454B refrigerant which is flammable (A2L). Use ONLY R-454B rated service equipment and components. For specific handling concerns with R-454B, contact your local representative.

Copyright
This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to revise this publication at any time, and to make changes to its content without obligation to notify any person of such revision or change.

Trademarks
All trademarks referenced in this document are the trademarks of their respective owners.

General Information

Inspection

1. Check carefully for shipping damage. If any damage is found, report it immediately, and file a claim against the transportation company. Replace damaged parts with authorized parts only.
2. Compare the order number on the shipping label with the accessory identification information on the ordering and shipping documents to verify that the correct accessory has been received.

Parts List

Figure 1. Barometric relief components (field installed kit)

Figure 2. Barometric assembly (factory installed – downflow unit only)

Table 1. LLE parts list

Table 2. Barometric relief parts list

Table 2. Barometric relief parts list (continued)

Field Supplied Part
NOTICE
Corrosion Damage!
Failure to use recommended caulking/sealant could cause corrosion related failures to refrigerant components.

Table 3. Field supplied part

Field Installation

WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury.
Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized. Verify with a CAT III or IV voltmeter rated per NFPA 70E that all capacitors have discharged.

1. Remove the barometric relief block-off panel and retain the screws for later use (see Figure 3). Discard the unit end panel.
   Figure 3. Remove panels

2. Build the barometric hood assembly as shown in Figure 4:

   • Attach 18 to 20 and 21 using two screws each side.
   • Place 17 resting on the bottom flanges of 20 and 21.
   • Apply gasket 22 to hood assembly aligning with four edges of the assembly.
   • Apply foil tape to cover side holes on 20 and 21.
     Figure 4. Build barometric hood assembly

3. Insert 19 through notch on end panel. See Figure 5.
   Figure 5. Install relief blade

4. Install barometric hood assembly onto end panel using nine screws. See Figure 6.
   Figure 6. Install barometric hood assembly

5. Using the field supplied silicone sealant, seal all seams, cracks, and gaps around the barometric hood as illustrated in Figure 7.
   Figure 7. Barometric hood sealing

Factory Installed Option (Field Setup, Downflow Only)

1. Remove unit end panel to locate barometric relief kit.
   Figure 8. Remove end panel

2. Remove the barometric relief kit packaged inside downflow economizer units as shown in Figure 9.
   Figure 9. Packaged barometric relief kit

3. Follow Step 2 in previous section and refer to Figure 4 to build the barometric hood assembly.

4. Remove the barometric relief bottom panel as shown in Figure 3.

5. Insert 19 through notch on end panel. See Figure 5.

6. Install the barometric hood assembly on unit using nine screws. See Figure 6.

7. Using the field supplied silicone sealant, seal all seams, cracks and gaps around the barometric hood as illustrated in Figure 7.

Trane and American Standard create comfortable, energy efficient indoor environments for commercial and residential applications. For more information, please visit trane.com or americanstandardair.com.
Trane and American Standard have a policy of continuous product and product data improvement and reserve the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.
ACC-SVN204F-EN 23 Aug 2024
Supersedes ACC-SVN204E-EN (Jul 2024)
©2024

References

• American Standard® | Air Conditioning and Heating | HVAC Systems
• Trane Heating & Air Conditioning

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