TRANE BAYDMPR320 Foundation Packaged Rooftop Units Installation Guide

BAYDMPR320 Foundation Packaged Rooftop Units

Specifications:

• Model Number: BAYDMPR320*
• Used With: E/GB036-060 E/GD036-060
• Capacity: 3 to 5 Tons
• Motorized Outside Air Damper: 0 – 50%

Product Usage Instructions

Safety Precautions:

Only qualified personnel should install and service the equipment. Ensure to observe all precautions mentioned in the literature and on the equipment.

Inspection:

1. Check for shipping damage and report immediately if found.
2. Verify the correct accessory has been received by comparing order numbers.

Parts List:

Installation:

1. Uncrate the damper and locate all parts.
2. Remove the unit end panel and retain screws for later use.
3. Install the field-installed motorized damper following the provided instructions.

FAQ

Q: Who should install and service the equipment?

A: Only qualified personnel should install and service the equipment to ensure safety and proper functioning.

Q: What should be done in case of shipping damage?

A: If any shipping damage is found, it should be reported immediately, and a claim should be filed against the transportation company. Replace damaged parts with authorized parts only.

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.

Warnings, Cautions, and Notices
Read this manual thoroughly before operating or servicing this unit. Safety advisories appear throughout this manual as required. Your 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 into 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 on 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 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 the 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.

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 THE INTENDED VOLTAGE.

Follow EHS Policies!
Failure to follow the 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-race personnel should always follow local regulations.

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-454 B-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.

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

Qty

|

Description

---|---

1

|

Motorized OA Damper Assembly

10

|

Screws

1

|

Block-off; Bottom

Installation

1. Uncrate the damper and locate all parts shown below.
2. Remove the unit end panel and retain screws for later use.
3. Install rain block-off 2 using four screws.
4. Install the motorized damper assembly onto the unit LH and RH posts using six screws.
5. Reinstall the end panel onto the unit and motorized damper assembly using the screws removed in Step 2.
6. Seal areas

Factory Installed Damper

1. Remove the horizontal return duct cover and take the rain block off from the inside the unit and keep it aside for later use .

2. Grasp the bottom of the end panel and pull the economizer assembly outward into the operating position.

3. Remove approximately 3 inches of gasket material from the bottom of each corner post to expose the holes used to attach the economizer assembly to the unit.

4. With the screws provided, secure each side of the economizer assembly by inserting a screw through the clearance hole in the bottom of the corner post and into the engagement hole in the economizer assembly.

5. Install the block-off angle underneath the economizer. The block-off angle is designed to close the opening created between the economizer and the base when the economizer assembly is in its operating position.
   a. Holding the block-off angle with the holes at the bottom and the bottom angle outward, tilt the top forward, and insert it into the opening between the economizer and the unit base to have a sealing to prevent water entry.
   b. Press the bottom of the block-off angle against the unit and line up the holes. Using four screws secure it into place as shown in Figure 10.

6. Proceed to Minimum Position Setting.

Minimum Position Setting

To adjust the minimum position setting and check out the damper, the power must be connected.

1. Close the unit disconnect and place the zone sensor fan selector in the fan ON position and the heat/cool selector in the OFF position. This will place the damper in the minimum ventilation position.
2. To adjust the minimum position setting for the required ventilation air, turn the potentiometer (on the damper motor) clockwise to open (to increase the amount of ventilation) or counterclockwise to close (to decrease the amount of ventilation). The damper will open to this setting each time the blower circuit is energized.
3. When adjusting the minimum position, the damper may move to the new setting in several small steps. Once the damper has remained in position for 10 to 15 seconds without movement, it can be assumed it is at the new position.
4. Reinstall the horizontal return duct cover. The damper will close when the blower circuit is de-energized.

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.

References

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

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