1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Reznor UDXC-100 Propane Unit Heater. Please read all instructions carefully before attempting to install or operate this unit. Retain this manual for future reference.
Image 1.1: Reznor UDXC-100 Propane Unit Heater overview.
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.
- Only qualified personnel should install, service, or repair this heater.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
- Always disconnect power and gas supply before performing any maintenance or service.
- This heater is designed for indoor use only.
3. Setup and Installation
The Reznor UDXC-100 unit heater is designed for flexible installation, including ceiling or wall mounting. Professional installation is highly recommended to ensure compliance with all safety standards and optimal performance.
3.1 Mounting
The unit features threaded-nut retainers at four suspension points, allowing for secure ceiling or wall mounting. Ensure the mounting structure can safely support the weight of the heater.
- Suspension Options: Supports 2- and 4-point suspension configurations.
- Venting: Multiple venting options are available. Consult the detailed installation guide for specific requirements.
3.2 Gas and Electrical Connections
An external gas connection is provided for ease of maintenance and installation. All gas and electrical connections must be performed by a licensed professional in accordance with local codes.
- Fuel Type: This unit operates on Propane (LP) gas.
- Electrical: Features an external terminal strip for 24V wiring.
Image 3.1: Visual representation of mounting options and key installation features.
4. Operating Instructions
The Reznor UDXC-100 is designed for efficient and quiet operation, providing reliable heating for various indoor environments.
4.1 Starting the Heater
- Ensure the gas supply valve is open.
- Verify electrical power is supplied to the unit.
- The unit features a multi-try direct spark ignition system with time lockout for reliable startup.
- Set the thermostat to the desired temperature. The heater will automatically ignite and begin heating.
4.2 Heating Flexibility
The single-burner design offers two BTU outputs, allowing for efficient heating in varying conditions.
Image 4.1: Illustration of heating flexibility with two BTU outputs.
4.3 Air Circulation
The unit incorporates a low static pressure axial fan and power venting to minimize heat loss and ensure effective air distribution.
Image 4.2: Depiction of air circulation patterns for efficient heating.
5. Maintenance
Regular maintenance ensures the longevity and efficient operation of your Reznor UDXC-100 heater. Always disconnect power and gas supply before performing any maintenance.
- Annual Inspection: Have a qualified service technician inspect the heater annually.
- Cleaning: Keep the area around the heater clear of obstructions. Periodically clean the exterior of the unit.
- Access: The updated cabinet structure includes a removable front face and a hinged access door panel with a quarter-turn latch for easier internal inspection and service.
- Heat Exchanger: The TCORE2 Titanium-Stabilized Aluminized Steel Heat Exchanger is designed for durability. Regular inspection for corrosion or damage is recommended.
6. Troubleshooting
This section provides guidance for common issues. For complex problems, contact a qualified service technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on | No power, gas supply off, thermostat setting too low | Check power supply, open gas valve, raise thermostat setting. |
| Unit cycles on and off frequently | Thermostat malfunction, restricted airflow | Inspect thermostat, ensure clear airflow around unit. |
| Unusual noises | Fan motor issue, loose components | Inspect fan and motor for obstructions. Contact service if noise persists. |
6.1 Diagnostic Features
- 7-Segment Display Board: Provides simple troubleshooting codes to identify issues.
- Status-Indicating LED Light: Offers visual cues regarding the unit's operational status.
7. Specifications
Key technical specifications for the Reznor UDXC-100 Propane Unit Heater.
Image 7.1: Dimensions and heat output for the Reznor UDXC-100.
| Feature | Detail |
|---|---|
| Model | UDXC-100 |
| Heat Output | 105,000 BTU |
| Fuel Type | Propane (LP) |
| AFUE Efficiency | 83% |
| Mounting Type | Ceiling or Wall Mount |
| Indoor/Outdoor Usage | Indoor |
| Recommended Uses | Garage, Industrial, Workshop |
| Dimensions (W x H x D) | 27" x 24.75" x 34 9/32" |
| Burner Type | Radiant |
| Number of Speeds | 2 |
| Special Features | Fast Heating, Low Noise Operation, ETL Approved |
8. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact Reznor customer service directly. Ensure you have your model number (UDXC-100) and date of purchase available when contacting support.
For further assistance, please visit the official Reznor website or contact your authorized dealer.
