1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Reznor UDXC-150 Natural Gas Unit Heater. Please read all instructions carefully before attempting to install or operate the unit. Retain this manual for future reference.
Figure 1: Front view of the Reznor UDXC-150 Natural Gas Unit Heater. This image displays the front and side view of the Reznor UDXC-150 Natural Gas Unit Heater, showcasing its compact design and air outlet.
2. Safety Information
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.
- Ensure all local codes and ordinances are followed during installation.
- Installation and service must be performed by a qualified installer, service agency, or gas supplier.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
- This unit is designed for indoor use only.
3. Setup and Installation
The Reznor UDXC-150 unit heater is designed for versatile installation in commercial or industrial spaces. Proper setup is crucial for safe and efficient operation.
3.1 Mounting
The UDXC-150 is equipped with threaded-nut retainers at four suspension points, allowing for ceiling or wall mounting. Mounting brackets and hardware are sold separately and must be appropriate for the unit's weight and the structural integrity of the mounting surface.
Figure 2: Ceiling-mounted Reznor UDXC-150 Unit Heater. The heater is shown installed on a ceiling, illustrating its suspension points. Accompanying text lists features such as Status-Indicating LED Light, 7-Segment Display Board for troubleshooting, 2- and 4-Point Suspension Options, External Gas Connection, and ETL Approval.
3.2 Venting
This unit is compatible with category 1 double wall B-vent pipe. Venting can be configured vertically out of a roof or horizontally through a sidewall. Consult local codes for specific venting requirements.
3.3 Gas Connection
An external gas connection point is provided for ease of maintenance and installation. Ensure all gas connections are leak-free and comply with local regulations. This unit operates on Natural Gas.
3.4 Electrical Wiring
The unit features an external terminal strip for 24V wiring. All electrical work must be performed by a qualified electrician and adhere to all applicable electrical codes.
Figure 3: Installation of the Reznor UDXC-150 Heater. A worker is shown connecting ductwork to a ceiling-mounted heater. The text emphasizes the unit's suitability for commercial/industrial spaces, corrosion-resistant materials, and quiet, efficient heating.
4. Operating Instructions
The Reznor UDXC-150 is designed for efficient and quiet heating.
4.1 Initial Startup
- Ensure all gas and electrical connections are secure and verified by a professional.
- Turn on the gas supply to the unit.
- Restore electrical power to the unit.
- Set the thermostat to the desired temperature. The unit will initiate its ignition sequence.
4.2 Normal Operation
- The unit features a single-burner design with two BTU outputs, allowing for efficient heating in varying conditions.
- An integrated circuit board with a display and a status-indicating LED provides operational feedback.
- The low static pressure axial fan and power venting system ensure effective air circulation and minimize heat loss.
- The unit operates with low noise due to vibration-isolated fan and venter motors.
Figure 4: Key Features of the Reznor UDXC-150 Unit Heater. This graphic highlights key features including 83% AFUE Efficiency, TCORE2 Titanium-Stabilized Aluminized Steel Heat Exchanger, Multi-Try Direct Spark Ignition, and Low Noise Operation.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your Reznor UDXC-150 unit heater. All maintenance should be performed by qualified personnel.
5.1 Routine Checks (Monthly/Quarterly)
- Inspect the heat exchanger for any signs of corrosion or damage. The TCORE2 titanium-stabilized aluminized steel heat exchanger is designed for durability.
- Check the fan and motor for unusual noises or vibrations.
- Ensure the air intake and exhaust vents are clear of obstructions.
- Verify that the external gas connection is secure and free of leaks.
5.2 Annual Servicing
- A qualified technician should perform a comprehensive inspection and cleaning of the burner, heat exchanger, and ignition system.
- The updated cabinet structure with a removable front face and hinged access door panel with a quarter-turn latch facilitate easier access for servicing.
- Check and calibrate gas pressure as needed.
- Inspect all electrical connections and wiring.
6. Troubleshooting
The UDXC-150 unit heater includes features to assist with troubleshooting common issues.
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not ignite | No gas supply, electrical issue, ignition fault | Check gas valve, power supply. Consult 7-segment display for error codes. |
| Unit runs but no heat | Gas supply interrupted, burner issue | Verify gas flow. Check burner for obstructions. |
| Unusual noises during operation | Fan imbalance, motor issue, loose components | Inspect fan and motor. Tighten any loose parts. If persistent, contact service. |
| Status LED indicates an error | Specific fault detected by the control board | Refer to the 7-segment display board for specific error codes and consult the full service manual for detailed troubleshooting steps. |
For complex issues or if the problem persists, contact a qualified service technician.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | UDXC-150 |
| Heat Output | 150,000 British Thermal Units (BTU) |
| Fuel Type | Natural Gas |
| Thermal Efficiency | 83% |
| Product Dimensions (D x W x H) | 48.44" x 38.19" x 20.13" |
| Mounting Type | Ceiling Mount, Wall Mount (brackets sold separately) |
| Room Type | Garage, Warehouse, Commercial/Industrial Spaces |
| Special Features | Energy Efficient, Fast Heating, Low Noise Operation, TCORE2 Titanium-Stabilized Aluminized Steel Heat Exchanger, 7-Segment Display Board |
| Number of Speeds | 2 |
Figure 5: Dimensions of the Reznor UDXC-150 Unit Heater. This image provides the physical dimensions of the 150,000 BTU unit, including its width, depth, and height, essential for installation planning.
8. Product Videos
No official product videos from the seller were found in the provided data for embedding in this manual.
9. Warranty Information
Specific warranty details for the Reznor UDXC-150 unit heater are typically provided at the point of purchase or included with the product packaging. Please refer to the warranty card or contact the seller (1HVAC) or Reznor directly for comprehensive warranty terms and conditions.
10. Support and Contact
For technical assistance, parts, or service inquiries, please contact the seller or an authorized Reznor service provider. Ensure you have your model number (UDXC-150) and serial number available when contacting support.
Seller: 1HVAC
For additional information, you may visit the 1HVAC Store on Amazon.
Figure 6: Product Condition and Packaging. This image shows two unit heaters, one from the front and one from the side revealing the fan. Text describes the careful handling in the 1HVAC warehouse and expert packaging to ensure product integrity during transit.
