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Installation Instructions
Electric Heater Kits
Foundation™ Packaged Rooftop Units
7.5 to 12.5 Tons
Model Numbers:
BAYHTMA310B
BAYHTMA315B
BAYHTMA325B
BAYHTMA332B
BAYHTMA341B
BAYHTMA350B
BAYHTMA414B
BAYHTMA416B
BAYHTMA425B
BAYHTMA433B
BAYHTMA441B
BAYHTMA450B
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.
October 2024
SAFETY WARNING
ACC-SVN299A-EN
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Summary of Contents for Trane Foundation BAYHTMA310B
- Page 1 Installation Instructions Electric Heater Kits Foundation™ Packaged Rooftop Units 7.5 to 12.5 Tons Model Numbers: BAYHTMA310B BAYHTMA315B BAYHTMA325B BAYHTMA332B BAYHTMA341B BAYHTMA350B BAYHTMA414B BAYHTMA416B BAYHTMA425B BAYHTMA433B BAYHTMA441B BAYHTMA450B 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.
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Page 2: Warnings, Cautions, And Notices
(HCFCs). Not all refrigerants containing these compounds bump cap, fall protection, electrical PPE and arc have the same potential impact to the environment. Trane flash clothing). ALWAYS refer to appropriate advocates the responsible handling of all refrigerants. - Page 3 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.
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Page 4: Table Of Contents
Table of Contents Pre-Installation ......5 General Information......6 Inspection . -
Page 5: Pre-Installation
Pre-Installation Inspection Figure 2. Control assembly 1. Unpack all components of the kit. 2. Check carefully for shipping damage. If any damage is found, report it immediately, and file a claim against the transportation company. Parts List Table 1. Parts list Description Heater elements Heater control assembly (including power supply and... -
Page 6: Electric Heaters
Pre-Installation Electric Heaters Figure 5. Support plates (shorter used with 7.5 tons) These installation instructions apply to the following heater models: Nominal kW Rating Electric Heater Models 208/230 Volts Three Phase BAYHTMA310B 10.4 BAYHTMA315B 16.0 BAYHTMA325B 25.0 BAYHTMA332B 32.0 BAYHTMA341B 41.0 BAYHTMA350B 50.0... - Page 7 Pre-Installation Table 2. Limit control settings (continued) Stages 10 Ton 4000 cfm 7.5 Ton 3000 cfm 8.5 Ton 3400 cfm 12.5 Ton 5000 cfm 41.5 33.0 38.2 36.1 28.2 50.0 39.5 – – 33.8 Table 3. Air temperature rise across electric heaters (°F) Stages 10 Ton 4000 cfm 7.5 Ton 3000 cfm...
- Page 8 Pre-Installation Table 4. Unit wiring with electric heat (single point connection) (continued) Standard Indoor Fan Motor Oversized Indoor Fan Motor Maximum Maximum Heater kW Control Unit Model Minimum Minimum Fuse Size or Fuse Size or Tons Rating Stages Number Circuit Circuit Maximum Maximum...
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Page 9: Installation
For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with a CAT III or IV voltmeter rated per NFPA 70E that all capacitors have discharged. - Page 10 Installation Figure 7. Electric heater wiring 8. Secure guard panel with wire hook. See following figure. 11. Install the waterproof box and fix the wire with the cable tie. See following figure. 9. Install rubber ring. See following figure. 12. Remove the cover E and F from the electric control box.
- Page 11 Installation 15. Connect the heater control wiring to Socket CN26 on the mainboard. 13. Install the new terminal block (XT2). • For 208/230V model: Disconnect the power supply wires for the fuse and contactor to COMP-B from XT1, and connect them (the power supply wire for 16.
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Page 12: Wiring Diagram
Wiring Diagram Figure 8. 230V ACC-SVN299A-EN... - Page 13 Wiring Diagram Figure 9. 460V ACC-SVN299A-EN...
- Page 14 Notes ACC-SVN299A-EN...
- Page 15 Notes ACC-SVN299A-EN...
- Page 16 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.
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