Trane BAYDSCF300 Through The Base Electrical Utility Unit Mounted Disconnect Instruction Manual

Trane BAYDSCF300 Through The Base Electrical Utility Unit Mounted

Disconnect

Specifications

• Model Number: See Table 1
• Product Type: Through-the-Base Electrical Utility/Unit Mounted Disconnect
• Date: April 2024
• Part Number: ACC-SVN151E-EN

Product Usage Instructions

Installation Instructions

• 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. Improper installation or servicing by unqualified persons could result in death or serious injury.
• Always observe precautions mentioned in the literature and on the equipment tags, stickers, and labels.

Introduction

This manual provides procedures for the proper installation of the unit- mounted disconnect switch/through-the-base electrical utility.

Model Numbers

The product is compatible with specific model numbers as listed in Table 1 of the manual.

Inspection

1. Check for shipping damage. Report any damage immediately and file a claim against the transportation company. Use authorized parts for replacements.
2. Verify the received accessory matches the order number on the shipping label and the ordering documents.

Warnings, Cautions, and Notices

• Read the manual thoroughly before operating or servicing the unit. Safety advisories are provided throughout the manual to ensure personal safety and proper machine operation.
• Pay attention to WARNING, CAUTION, and NOTICE alerts for different levels of potential hazards.

Important Environmental Concerns

The manual emphasizes responsible refrigerant practices and proper field wiring and grounding requirements to prevent accidents and ensure safety.

FAQ

Q: Who should install the equipment?

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

Q: What should I do if I find shipping damage?

A: Report any shipping damage immediately, file a claim against the transportation company, and replace damaged parts with authorized components.

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 require 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.

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.

WARNING Personal Protective Equipment (PPE) Required!

• Failure to wear proper PPE for the job being undertaken could result in death or serious injury.
• Technicians, 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.
• 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.

Revision History

• Removed discontinued BAYDSCF304* information from the document.

Introduction

• This manual describes the procedures required to properly install the unit-mounted disconnect switch/through-the-base electrical utility.

Table 1. Model numbers

Unit Mounted Disconnect
BAYDSCF300| E/GCC180-300, 4/W, No Heat/Gas Heat
BAYDSCF301| E/GCC180-300, 3, No Heat/Gas Heat
BAYDSCF302| E/GCC180, 3/4/W, 18kW Electric Heat E/GCC180-300, 4/W, 36kW/54kW Electric Heat E/GCC210-300, W, 72kW Electric Heat
BAYDSCF303| E/GCC180-300, 3, 36kW Electric Heat E/GCC210-300, 4, 72kW Electric Heat
Through-the-Base Utility
BAYTBUE300| E/GCC180-300, 4/W, 18kW/36kW/54kW/72kW Electric Heat

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

Table 2. Parts list

non-electric heat kits)
1| Conduit Mounting Plates (The number of plates varies with the size of the disconnect)

(a) Only included with BAYDSCF kits.

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.

Access Location

1. Remove the compressor access panel.
2. Remove the through the base electrical (TBUE) access plate and 1/4-inch screw located on the compressor rail in the front corner of the unit and discard. See Figure 1.
3. Cut out the foam insert and pull the power and thermostat wires up through the TBUE access hole.
   • Figure 1. Remove the TBUE access plate

Install the Enclosure

1. Using three screws (10-16) install the supplied bracket on the corner post. See Figure 2.
2. Install the two gaskets on the compressor rail where the enclosure will sit. See Figure 3.
3. Remove the TBUE access panel and set it aside.
4. Install the enclosure and confirm contact is made with the gasket.
5. Reinstall the 1/4-inch screw in the same location from where it was removed.
6. Using three screws (10-16) attach the enclosure to the previously installed bracket. See Figure 4.
7. Remove the label (kit installed) from kit bag and place the label next to the unit nameplate.

Wiring

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. Determine if the hole size provided in the mounting plate for the power wire conduit is the correct size per conduit connector. If the hole is too big, install one of the mounting plates provided, per power conduit connection size, using four screws (10-16).
2. Route the power and thermostat conduits to the mounting plate located inside the TBUE enclosure and secure.
3. Insert the power wires into the line side of the disconnect and ground lug, paying attention to proper phasing. See Figure 5.
4. Route the thermostat wire up the side of the enclosure, securing the wire with the wire ties attached. Connect the thermostat to the terminal strip on the front of the control box.

For Units With Electric Heat

1. Place six pop-in wire ties into the two sets of three holes provided on the bottom of the control box. Cut and replace the two pop-in wire ties on the bulkhead wall that is closest to the access opening. Cut wire ties around the gasket that pass through the big hole in the bulkhead wall, remove the gasket, and set it aside.
2. Route each disconnect wire through one of the pop-in wire ties at both locations and then down the bulkhead wall using pop-in wire ties and into the electric heat compartment as shown in Figure 6.
3. Create a drip loop at the TBUE enclosure when routing these wires.
4. Terminate the wire in the distribution block located in the electric heat section per unit wiring diagram. See Figure 7.
5. Place gasket around wires on compressor side of bulkhead wall and secure with two wire ties.

For Units With no Heat/Gas Heat

1. Route wire from disconnect into the control box as shown in Figure 8.
2. Create a drip loop at the TBUE enclosure when routing these wires.
3. Terminate the wire in the distribution block located in the control box per unit wiring diagram. See Figure 8.
4. Secure the wire with a pop-in wire tie in the control box.

Installing Flip Switch Cover for Disconnect

1. On the unit access panel, pop-out knockout using a flat-head screwdriver.
2. Remove the flip switch cover from the packaging and pop out the gasket seal per instructions on the cover packaging.
3. Using the two screws (6-32) provided in the kit bag, secure the flip switch cover to the front access panel as shown in Figure 9.
4. Place label unit disconnect switch located behind this cover above the flip switch cover on the unit access panel as shown in Figure 9.

For Units With no Internal Disconnect

1. Remove plastic plugs from the corner post.
2. Install the enclosure as stated in “Install the Enclosure”.
3. Use the holes provided in the corner post to route wires to and from the external disconnect. See Figure 10.
4. Remove the bottom bracket with the gasket on it and route wires through the three holes. See Figure 11.
5. Reinstall the bracket and gasket.
6. Route wires through the unit as stated in “For Units With Electric Heat” or “For Units With no Heat/Gas Heat” depending on the unit heat configuration.

• 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-SVN151E-EN 01 Apr 2024 Supersedes ACC-SVN151D-EN (Dec 2022)

References

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

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