1. Product Overview
The Hoffman McLean T15 Series Outdoor Air Conditioner, model T150116G152, is engineered for robust performance in demanding outdoor environments. This unit features a reciprocating compressor and a hinged front cover, providing convenient access to all internal components for maintenance. Designed for versatility, it supports both exterior and fully recessed mounting options. Constructed from stainless steel and finished in RAL 7035 light-gray semi-textured powder-coat paint, it offers durability and corrosion resistance. This air conditioner is ideally suited for industrial automation, package handling equipment, food/beverage processing, and wastewater treatment applications.

Figure 1: Hoffman T15 Series Outdoor Air Conditioner (800 BTU/Hr., 234 Watts). This image displays the compact, light-gray stainless steel enclosure of the T15 model, designed for outdoor use, with visible ventilation grilles on the front panel.
2. Safety Information
Please read and understand all safety instructions before installing, operating, or performing maintenance on this air conditioner. Failure to follow these instructions could result in property damage, serious injury, or death.
- Qualified Personnel: Installation, maintenance, and repair must be performed by qualified and authorized personnel only.
- Electrical Hazard: Disconnect all power to the unit before performing any installation or maintenance. Ensure proper grounding.
- Refrigerant: This unit contains R-410A refrigerant. Handling of refrigerant should only be done by certified technicians.
- Weight: The unit may be heavy. Use appropriate lifting techniques and equipment to prevent injury.
- Ventilation: Ensure adequate airflow around the unit as specified in the installation guidelines to prevent overheating.
- Environmental Conditions: Do not operate the unit outside its specified environmental limits.
3. Setup & Installation
Proper installation is crucial for the optimal performance and longevity of your Hoffman T15 Series Air Conditioner. It is highly recommended that installation be performed by a certified professional.
3.1. Unpacking
- Carefully remove the unit from its packaging.
- Inspect the unit for any shipping damage. Report any damage to your supplier immediately.
- Verify all components listed in the packing list are present.
3.2. Mounting Options
The T15 series offers flexible mounting solutions:
- Exterior Mounting: The unit can be mounted directly to the exterior surface of the enclosure.
- Fully Recessed Mounting: For a more integrated appearance, the unit can be recessed into the enclosure.
Refer to the detailed installation template and instructions provided with the unit for precise mounting hole patterns and clearances.
3.3. Electrical Connection
- Ensure the power supply matches the unit's requirements (100 to 120 Vac).
- Connect the unit to a dedicated, properly fused, and grounded circuit.
- All wiring must comply with local and national electrical codes.
3.4. Condensate Management
The unit is designed to manage condensate. Ensure the condensate drain is clear and properly routed to prevent water accumulation.
4. Operating Instructions
The Hoffman T15 Series Air Conditioner is designed for continuous operation to maintain optimal internal enclosure temperatures. It features a remote control method for temperature management.
4.1. Initial Startup
- After installation is complete and all connections are secure, apply power to the unit.
- The unit will typically begin operation automatically if the enclosure temperature exceeds the setpoint.
4.2. Temperature Control
The unit's temperature setpoint can be adjusted via a remote control interface. Refer to the specific instructions for your remote control unit for details on setting the desired temperature and monitoring operational status.
4.3. Normal Operation
During normal operation, the air conditioner will cycle on and off to maintain the set internal temperature, protecting sensitive equipment from heat-related issues. Ensure that the air intake and exhaust vents are not obstructed.
5. Maintenance
Regular maintenance ensures the efficient and reliable operation of your air conditioner. Always disconnect power before performing any maintenance.
5.1. Filter Cleaning/Replacement
- The unit features a hinged front cover for easy access to internal components, including air filters.
- Inspect air filters monthly, or more frequently in dusty environments.
- Clean filters using mild soap and water, or replace them if heavily soiled or damaged. Ensure filters are completely dry before reinstallation.
5.2. Condensate Drain Inspection
- Periodically check the condensate drain for blockages. A clogged drain can lead to water accumulation inside the enclosure.
- Clear any debris from the drain tube.
5.3. General Cleaning
- Wipe down the exterior of the unit with a damp cloth. Avoid abrasive cleaners.
- Ensure that the condenser and evaporator coils are free of dust and debris. Use a soft brush or vacuum cleaner if necessary.
6. Troubleshooting
This section provides solutions to common issues. For problems not listed here, or if issues persist, contact Hoffman technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not turn on. | No power supply; tripped circuit breaker; faulty wiring. | Check power connection; reset circuit breaker; verify wiring by a qualified electrician. |
| Insufficient cooling. | Dirty air filters; obstructed airflow; low refrigerant; incorrect setpoint. | Clean/replace filters; clear obstructions from vents; contact service for refrigerant check; adjust setpoint. |
| Water leaking from unit. | Clogged condensate drain; unit not level. | Clear condensate drain; ensure unit is installed level. |
| Unusual noise. | Loose components; fan obstruction; compressor issue. | Inspect for loose parts; clear fan area; contact qualified service personnel. |
7. Technical Specifications
| Feature | Detail |
|---|---|
| Model Name | T150116G152 |
| Brand | Hoffman |
| Cooling Capacity | 800 BTU/Hr. (235 Watts) |
| Dimensions (H x W x D) | 15.75" x 7.5" x 6.3" (7.5"D x 15.75"W x 6.3"H) |
| Voltage | 100 to 120 Vac |
| Color | Light Grey (RAL 7035) |
| Material | Stainless Steel |
| Refrigerant | R 410A |
| Control Method | Remote |
| Installation Type | Split System |
| Application | Outdoor, Industrial automation, package handling equipment, food/beverage, wastewater treatment |
8. Warranty & Support
For detailed warranty information, please refer to the warranty card included with your product or visit the official Hoffman website. Hoffman provides technical support to assist with installation, operation, and troubleshooting.
Contact Information:
- Website: www.hoffman.nvent.com (or refer to product packaging for specific regional contact details)
- Customer Service: Refer to the Hoffman website for phone numbers and email support.
When contacting support, please have your model number (T150116G152) and serial number ready.







