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Installation Instructions
Power Exhaust
Foundation™ Packaged Rooftop
Units
3 to 5 Tons
Model Numbers:
BAYPWRX320*
BAYPWRX321*
BAYPWRX322*
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.
April 2022
Used With:
G/EB*036-060A3
G/EB*036-060A4
G/EB*036-060AW
SAFETY WARNING
ACC-SVN199E-EN
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Summary of Contents for Trane Power Exhaust Foundation BAYPWRX320
- Page 1 Installation Instructions Power Exhaust Foundation™ Packaged Rooftop Units 3 to 5 Tons Model Numbers: Used With: BAYPWRX320* G/EB*036-060A3 BAYPWRX321* G/EB*036-060A4 BAYPWRX322* G/EB*036-060AW 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.
- Page 2 Practices with OSHA, NFPA 70E, or other country-specific requirements for arc flash protection, PRIOR to Trane believes that responsible refrigerant practices are servicing the unit. NEVER PERFORM ANY important to the environment, our customers, and the air SWITCHING, DISCONNECTING, OR VOLTAGE conditioning industry.
- Page 3 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.
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Page 4: Table Of Contents
Table of Contents General Information ..... 5 Inspection ......5 Parts List . -
Page 5: General Information
Gasket Top block off assembly Gasket roll Low leak Economizer harness Field Supplied Part NOTICE Corrosion Damage! Use of non-recommended caulking/sealant could cause corrosion related failures to refrigeration components. 1 - Tube Sealant - Trane recommends Sikaflex 221 (SEL00439) ACC-SVN199E-EN... -
Page 6: Installation
Installation Figure 2. Remove access panels and top cover WARNING Hazardous Service Procedures! Failure to follow all precautions in this manual and on the tags, stickers, and labels 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 following... - Page 7 Installation Figure 4. Bottom gasket installation Figure 6. Attach internal hood assembly to unit Screws 0.78(2X) 8. Apply gasket 14 to return opening around the dimples 6. Build top block off assembly as shown in Figure as shown in Figure a.
- Page 8 Installation 9. Attach support and alignment bracket to base rail 13. Install power exhaust assembly onto the side of unit using three screws. See Figure using 6 screws. See Figure Figure 8. Install support and alignment bracket Figure 10. Attach Power Exhaust to side of unit 14.
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Page 9: Low Leak Economizer (Downflow Units Only)
Installation Low Leak Economizer 15. Using field supplied silicone sealant, seal each corner of the power exhaust as well as all seams and make (Downflow Units Only) sure they are all water-tight. See Figure Figure 12. Seal seams and corners WARNING Hazardous Voltage w/Capacitors! Failure to disconnect power and discharge capacitors... -
Page 10: Close Out Installation
Installation 7. Using field supplied silicone sealant, seal all seams on Figure 14. Apply gasket the power exhaust and make sure they are all water- tight. See Figure Gasket Figure 16. Seal seams on power exhaust Seal along end panel flanges 6. -
Page 11: Wiring Connection
Wiring Connection Power Wiring b. Low Leak Economizer: i. Take the low leak economizer labelled harness out of the box and route the harness as shown in WARNING Figure 19 from the control box to the return section of the economizer. Hazardous Voltage w/Capacitors! Figure 19. -
Page 12: Control Wiring
Wiring Connection Figure 21. Wiring connection - power exhaust Figure 22. Connecting to RTEM XFR - 5 (3M) XFR - COIL - A (157B) CFX - LT (1M) (with motor purple wire) XFR - COIL - B (W16) Control Wiring WARNING Hazardous Voltage w/Capacitors! Failure to disconnect power and discharge capacitors... - Page 13 Wiring Connection Figure 23. JADE controller connections 162A (BK) - W16 157C (R) 162A (BK) 101AU (W) 157B (R) EXH1 (Power Exhaust) AUX1 157C (R) (Low Leak Economizer) Figure 24. Wiring diagram ACC-SVN199E-EN...
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Page 14: Power Exhaust Operation And Settings
Wiring Connection Power Exhaust Operation and Settings Standard Economizer The Power Exhaust setpoint (point at which the Power Exhaust is turned on) is adjustable from 0% to 100% economizer damper outside air setting, corresponding to the setting of the "exhaust setpoint" potentiometer on the RTEM-EM. - Page 15 Notes ACC-SVN199E-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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