1. Introducción y másview
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Reznor UDXC-150 natural gas unit heater. The UDXC-150 is a 150,000 BTU commercial-grade forced air heater designed for various indoor spaces such as garages, workshops, and warehouses. It features an 83% thermal efficiency rating and is built for durability and quiet operation.
2. Información de seguridad
ADVERTENCIA: La instalación, el ajuste, la alteración, el servicio o el mantenimiento incorrectos pueden causar daños a la propiedad, lesiones o la muerte. Lea detenidamente las instrucciones de instalación, funcionamiento y mantenimiento antes de instalar o reparar este equipo.
Precauciones generales de seguridad:
- La instalación y el servicio deben ser realizados por un instalador calificado, una agencia de servicio o un proveedor de gas.
- Ensure adequate ventilation is provided as per local codes and manufacturer instructions.
- Maintain proper clearances from combustible materials as specified in the installation guide.
- No almacene ni utilice gasolina u otros vapores y líquidos inflamables cerca de este o cualquier otro aparato.
- Never obstruct the air intake or exhaust vents.
- Inspeccione periódicamente la unidad para detectar cualquier signo de daño o mal funcionamiento.
3. Características del producto
The Reznor UDXC-150 unit heater incorporates advanced technology for reliable and efficient heating:
- Alta eficiencia térmica: Achieves an 83% AFUE (Annual Fuel Utilization Efficiency) rating.
- Intercambiador de calor duradero: Features a TCORE2 titanium-stabilized aluminized steel heat exchanger for extended lifespan.
- Encendido avanzado: Equipped with multi-try direct spark ignition with time lockout.
- Funcionamiento silencioso: Designed for low noise with vibration-isolated fan and venter motors.
- Pantalla de diagnóstico: Includes a 7-segment display board for simple troubleshooting and a status-indicating LED light.
- Montaje flexible: Offers 2- and 4-point suspension options for ceiling or wall mounting (mounting hardware sold separately).
- Fácil mantenimiento: External gas connection for simplified service access.
- Certificado de seguridad: ETL Approved.
- Heating Flexibility: Single-burner design with two BTU outputs for varying temperature needs.

This image displays the Reznor UDXC-150 unit heater and highlights its key standard features, including 83% AFUE efficiency, multi-try direct spark ignition with time lockout, a TCORE2 titanium-stabilized aluminized steel heat exchanger, and low noise operation due to vibration-isolated fan and venter motors.

This image shows the Reznor UDXC-150 unit heater and details further standard features such as a status-indicating LED light, a 7-segment display board for troubleshooting, options for 2- and 4-point suspension, an external gas connection for ease of maintenance, and ETL approval.
4. Contenido del paquete
Your Reznor UDXC-150 unit heater package includes the following components:
- Calentador de gas natural Reznor UDXC-150
- Vertical Category 1 Double Wall B-Vent Kit (for venting out of a roof)
Vertical B-Vent Kit Components:
- 1x Reznor CCI Vent Cap
- 1x Draft Hood Connector
- 2x 12" Length Straight Pipe (5" diameter)
- 2x 24" Length Straight Pipe (5" diameter)
- 2x 60° Adjustable Elbow (5" diameter)
- 1x 90° Adjustable Elbow (5" diameter)
- 1x Roof Flashing (up to 5/12 Pitch)
- 1x 5" Diameter Storm Collar

This image displays the various components included in a 5-inch diameter double wall B-vent kit for vertical Category I venting. The kit includes a Reznor CCI Vent Cap, a Draft Hood Connector, 12-inch and 24-inch straight pipes, 60-degree and 90-degree adjustable elbows, roof flashing, and a storm collar.
5. Configuración e instalación
Installation of the Reznor UDXC-150 unit heater requires adherence to all local codes and regulations, as well as the detailed instructions provided in the full installation manual. It is strongly recommended that installation be performed by a qualified and licensed professional.
Consideraciones clave de instalación:
- Montaje: The unit can be ceiling-mounted or wall-mounted using appropriate suspension points. Mounting hardware is sold separately. Ensure the mounting structure can safely support the weight of the unit.
- Desfogue: This model includes a vertical Category 1 double wall B-vent kit. Proper venting is crucial for safety and efficiency. Follow all instructions for vent pipe assembly and roof flashing.
- Conexión de gas: Connect the unit to a natural gas supply line. All gas connections must be leak-tested by a qualified professional. The external gas connection is designed for ease of access.
- Conexión eléctrica: The unit requires a 24V electrical connection. Ensure all wiring is done according to electrical codes and the manufacturer's specifications. The unit includes an external terminal strip for 24V wiring and a built-in enhanced disconnect switch.
- Espacios libres: Maintain specified clearances from combustible materials around the heater and vent system.

This image shows the Reznor UDXC-150 unit heater installed on a ceiling, emphasizing its compact and durable design. It highlights its suitability for larger commercial garages, warehouses, and industrial workspaces, and its capability for ceiling or wall mounting with multiple venting options.

This image highlights the simplified installation and advanced features of the Reznor UDXC-150 unit heater. It points out the updated cabinet structure with a removable front face, a hinged access door panel with a quarter-turn latch, threaded-nut retainers for ceiling or wall mounting, an enhanced integrated circuit board with a 7-segment display, a built-in enhanced disconnect switch, a status-indicating LED, and an external terminal strip for 24V wiring.
6. Instrucciones de funcionamiento
Once properly installed and connected, the Reznor UDXC-150 unit heater is designed for straightforward operation, typically controlled by an external thermostat (not included).
Operación básica:
- Encendido: Ensure the main power supply to the unit is switched on.
- Control del termostato: Set your external thermostat to the desired temperature. The heater will automatically cycle on and off to maintain the set temperature.
- Salida de calor: The single-burner design offers two BTU outputs. The unit will automatically adjust between high fire for colder conditions and low fire for milder temperatures to ensure efficient heating.
- Circulación de aire: The low static pressure axial fan provides effective air circulation, distributing heat evenly throughout the space.
- Indicador de estado: Observe the status-indicating LED and the 7-segment display board for operational status and any diagnostic codes.
For detailed startup procedures and advanced settings, refer to the complete operating manual.
7. Mantenimiento
Regular maintenance ensures the longevity and efficient operation of your Reznor UDXC-150 unit heater. All maintenance should be performed by a qualified service technician.
Programa de mantenimiento recomendado:
- Inspección anual: Have a qualified technician inspect the heat exchanger, burner, ignition system, fan motor, and all gas and electrical connections annually.
- Limpieza: Ensure the fan blades and heat exchanger fins are free from dust and debris to maintain optimal airflow and efficiency.
- Comprobación del sistema de ventilación: Inspect the entire vent system for any blockages, leaks, or corrosion.
- Dispositivos de seguridad: Verify the proper operation of all safety controls and limit switches.
Desconecte siempre la alimentación de la unidad antes de realizar cualquier mantenimiento o limpieza.
8. Solución de problemas
The Reznor UDXC-150 is equipped with diagnostic features to assist in identifying operational issues. Refer to the full service manual for detailed troubleshooting steps.
Common Indicators and Actions:
- Sin calefacción/la unidad no arranca: Check power supply, gas supply, and thermostat settings. Consult the 7-segment display for error codes.
- Ruidos inusuales: Could indicate fan imbalance, motor issues, or debris. Disconnect power and inspect. If persistent, contact a technician.
- LED de estado: The status-indicating LED provides a quick visual cue of the unit's operational state. Refer to the manual for specific flash codes.
- 7-Segment Display: This display will show diagnostic codes that pinpoint specific issues. Note the code and consult the troubleshooting section of the detailed manual.
If you are unable to resolve an issue, contact a qualified HVAC service technician.
9. Especificaciones
| Característica | Detalle |
|---|---|
| Marca | Reznor (Distributed by 1HVAC) |
| Número de modelo | UDXC-150 |
| Calificación BTU | 150,000 BTU |
| Eficiencia térmica | 83% AFUÉ |
| Tipo de combustible | Gas natural |
| Método de calentamiento | Aire forzado |
| Factor de forma | Mounted (Ceiling/Wall) |
| Uso en interiores y exteriores | Interior |
| Dimensiones del producto (Pr. x An. x Al.) | 48.44" x 38.19" x 20.13" |
| Número de velocidades | 2 |
| Vent Kit Included | Vertical Category 1 Double Wall B-Vent Kit (5-inch diameter) |

This image illustrates the physical dimensions of the 150,000 BTU Reznor UDXC-150 unit heater, showing its height of 20 1/8 inches, width of 38 3/16 inches, and depth of 48 7/16 inches.
10. Garantía y soporte
For specific warranty information regarding your Reznor UDXC-150 unit heater, please refer to the documentation included with your purchase or contact the seller directly. Warranty terms typically cover manufacturing defects and may vary.
For technical support, service inquiries, or to purchase replacement parts, please contact 1HVAC, the distributor of this product. You can visit the 1HVAC Store Para más información.





