

The Trane Air Handler TWE090B100E is a high-efficiency air handling unit designed for optimal indoor climate control. This robust system ensures reliable performance and energy savings, making it ideal for commercial and industrial applications. Regular maintenance enhances its longevity and efficiency.
Turn manuals into instant answers
with your AI-powered assistantTurn manuals into instant answers
with your AI-powered assistant
Get instant access to all the maintenance information you need. Empower technicians to perform preventive maintenance with asset packages, ready to use right out of the box.
Find all the essential guides in one place.
Tensioning Guide
Belt-diagram
C-120 pulleys
+ 13 more
Pre-built workflows to keep your asset running smoothly.
Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
+ 29 more
Integrate maintenance plans directly into your work orders.
Motion Industries
Applied Industrial Technologies
Electrical Brothers
+ 5 more
Access the parts list for your equipment in MaintainX.
Drive Motor
B2 Rollers
Tensioning System
+ 40 more

Trane Air Handler TWE090B100E
Create an account to install this asset package.
Integrate maintenance plans directly into your work orders in MaintainX.
Fan Belt Adjustment
- WARNING! Rotating Components! Failure to disconnect power before servicing could result in rotating components cutting and slashing technician which could result in death or serious injury
- Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized
- The fan belts must be inspected periodically to assure proper unit operation. Replacement is necessary if the belts appear frayed or worn
- When removing or installing the new belts, do not stretch them over the sheaves. Loosen the belts using the belt tension adjustment bolts on the motor mounting base
- Once the new belts are installed, using a Browning or Gates tension gauge (or equivalent), adjust the belt tension as follows
- To determine the appropriate belt deflection: Measure the center-to-center shaft distance (in inches) between the fan and motor sheaves
- Divide the distance measured in Step 1a by 64, the resulting value represents the amount of belt deflection that corresponds to the proper belt tension
- Set the large O-ring on the belt tension gauge at the deflection value
- Set the small O-ring at zero on the force scale of the gauge plunger
Filter Replacement
WARNING! Fiberglass Wool! Exposure to glass wool fibers without all necessary PPE equipment could result in cancer, respiratory, skin or eye irritation, which could result in death or serious injury.
You MUST wear all necessary Personal Protective Equipment (PPE) including gloves, eye protection, a NIOSH approved dust/mist respirator, long sleeves and pants when working with products containing fiberglass wool.
Avoid breathing fiberglass dust. Use a NIOSH approved dust/mist respirator. Avoid contact with the skin or eyes. Wear long-sleeved, loose-fitting clothing, gloves, and eye protection.
Wash clothes separately from other clothing, rinse washer thoroughly. Operations such as sawing, blowing, tear-out, and spraying may generate fiber concentrations requiring additional respiratory protection. Use the appropriate NIOSH approved respirator.
First Aid Measures are: Eye Contact - Flush eyes with water to remove dust. If symptoms persist, seek medical attention. Skin Contact - Wash affected areas gently with soap and warm water after handling.
Air handlers are shipped with throwaway filters installed. Confirm this.
Note: 2'' Merv 13 filters are available for field install option only.
To replace filters from the end of the unit, remove lower access panel (either end) and slide old filters out and replace with new ones.
To replace from the front of the unit, remove one “L” shaped angle. Remove and replace filters and reinstall “L” shaped angle.
1 Monthly Air Handler Maintenance
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.
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.
NOTE! Operating Under Vacuum! Failure to follow these instructions will result in compressor failure. Do not operate or apply power to the compressor while under a vacuum.
WARNING! Fiberglass Wool! Exposure to glass wool fibers without all necessary PPE equipment could result in cancer, respiratory, skin or eye irritation, which could result in death or serious injury. Disturbing the insulation in this product during installation, maintenance or repair will expose you to airborne particles of glass wool fibers and ceramic fibers known to the state of California to cause cancer through inhalation.
You MUST wear all necessary Personal Protective Equipment (PPE) including gloves, eye protection, a NIOSH approved dust/mist respirator, long sleeves and pants when working with products containing fiberglass wool.
Precautionary Measures are: Avoid breathing fiberglass dust, Use a NIOSH approved dust/mist respirator, Avoid contact with the skin or eyes. Wear long-sleeved, loose-fitting clothing, gloves, and eye protection, Wash clothes separately from other clothing, rinse washer thoroughly.
Operations such as sawing, blowing, tear-out, and spraying may generate fiber concentrations requiring additional respiratory protection. Use the appropriate NIOSH approved respirator.
First Aid Measures are: Eye Contact - Flush eyes with water to remove dust. If symptoms persist, seek medical attention. Skin Contact - Wash affected areas gently with soap and warm water after handling.
1 Yearly Coil Cleaning
Regular coil maintenance, including annual cleaning-enhances the unit's operating efficiency by minimizing
Minimize the following during maintenance
At least once each year — or more often if the unit is located in a “dirty” environment — clean the coil using the instructions outlined below
Be sure to follow these instructions as closely as possible to avoid damaging the coils;
1 Yearly Air Handler Maintenance
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.
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.
NOTE! Operating Under Vacuum! Failure to follow these instructions will result in compressor failure. Do not operate or apply power to the compressor while under a vacuum.
WARNING! Fiberglass Wool! Exposure to glass wool fibers without all necessary PPE equipment could result in cancer, respiratory, skin or eye irritation, which could result in death or serious injury.
You MUST wear all necessary Personal Protective Equipment (PPE) including gloves, eye protection, a NIOSH approved dust/mist respirator, long sleeves and pants when working with products containing fiberglass wool.
Precautionary Measures are: Avoid breathing fiberglass dust, Use a NIOSH approved dust/mist respirator, Avoid contact with the skin or eyes. Wear long-sleeved, loose-fitting clothing, gloves, and eye protection, Wash clothes separately from other clothing, rinse washer thoroughly.
Access the parts list for your equipment in MaintainX.
Subbase
BAYBASE002A
Hot Water Coil Encl. & Assm. - 7-1/2 Ton
BAYWATR018D
Heater 4.33/5.76 kW
BAYHTRL106A
Low Static Drive Kit
BAYLSDR003A
Heater 8.65/11.52 kW
BAYHTRL112A
Subbase
BAYBASE002A
Hot Water Coil Encl. & Assm. - 7-1/2 Ton
BAYWATR018D
Heater 4.33/5.76 kW
BAYHTRL106A
Low Static Drive Kit
BAYLSDR003A
Heater 8.65/11.52 kW
BAYHTRL112A
Subbase
BAYBASE002A
Hot Water Coil Encl. & Assm. - 7-1/2 Ton
BAYWATR018D
Heater 4.33/5.76 kW
BAYHTRL106A
Low Static Drive Kit
BAYLSDR003A
Heater 8.65/11.52 kW
BAYHTRL112A
MaintainX CoPilot is your expert colleague, on call 24/7, helping your team find the answers they need to keep equipment running.
Reduce Unplanned Downtime
Ensure your team follows consistent procedures to minimize equipment failures and costly delays.
Maximize Asset Availability
Keep your assets running longer and more reliably, with standardized maintenance workflows from OEM manuals.
Lower Maintenance Costs
Turn any technician into an expert to streamline operations, maintain more assets, and reduce overall costs.
Thousands of companies manage their assets with MaintainX













