Uvod
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Reznor UDXC-45 Natural Gas Unit Heater. Please read this manual thoroughly before installation or use and retain it for future reference. This unit is designed for indoor use in commercial, industrial, or residential spaces such as garages, workshops, and warehouses.
Sigurnosne informacije
UPOZORENJE: Nepravilna instalacija, podešavanje, preinake, servisiranje ili održavanje mogu uzrokovati oštećenje imovine, ozljede ili smrt. Prije instaliranja ili servisiranja ove opreme temeljito pročitajte upute za instalaciju, rad i održavanje.
- Installation must comply with local and state codes. It is highly recommended that installation and service be performed by a qualified installer, service agency, or gas supplier.
- Osigurajte odgovarajuću ventilaciju u prostoru za instalaciju.
- Nemojte skladištiti niti koristiti benzin ili druge zapaljive pare i tekućine u blizini ovog ili bilo kojeg drugog uređaja.
- Ovaj proizvod može vas izložiti hemikalijama, uključujući olovo i olovna jedinjenja, za koja je država Kalifornija poznata da izazivaju rak i urođene mane ili druga oštećenja reprodukcije. Za više informacija idite na www.P65Warnings.ca.gov.
Karakteristike proizvoda
- Kapacitet grijanja: 45,000 BTU with two heating output levels (low fire 26,145 BTU / high fire 37,350 BTU).
- Toplotna efikasnost: Postiže termalnu efikasnost od 83%.
- Izmjenjivač topline: TCORE2 titanium-stabilized aluminized steel heat exchanger for durability.
- Combustion: Patented single-burner combustion system.
- Kontrolni sistem: Integrated circuit board with a 7-segment display for simple troubleshooting, built-in disconnect, and status-indicating LED.
- Fan System: Quiet operation with a vibration/noise isolated low static pressure axial propeller fan and power venting system.
- Montaža: Držači s navojnim maticama na četiri točke ovjesa za montažu na strop ili zid (montažni pribor se prodaje zasebno).
- Dizajn: Improved cabinet design with a removable front face and a hinged access door panel with a quarter-turn latch.
- Certifikati: ETL Approved. All UDXC sizes are certified for Commercial/Industrial Use. 30K-120K BTU units also approved for Residential Garages & Workshops.

Figure 1: Key features of the Reznor UDXC-45 Unit Heater, highlighting 83% AFUE Efficiency, Multi-Try Direct Spark Ignition, TCORE2 Heat Exchanger, and Low Noise Operation.

Figure 2: Additional standard features including Status-Indicating LED Light, 7-Segment Display Board for Troubleshooting, 2- and 4-Point Suspension Options, External Gas Connection, and ETL Approval.
Postavljanje i instalacija
Proper installation is crucial for the safe and efficient operation of your Reznor UDXC-45 heater. It is strongly recommended that installation be performed by a certified HVAC professional or gas technician.
Montaža
- The unit is designed for ceiling or wall mounting. It includes threaded-nut retainers at four suspension points.
- Mounting brackets and hardware are sold separately and must be appropriate for the unit's weight and the structural integrity of the mounting surface.
- Ensure the unit is installed in a location that allows for proper air circulation and access for maintenance.
odvodne
- The unit is compatible with Category 1 double wall B-vent when venting vertically out of a roof.
- Alternatively, it can be vented horizontally through a sidewall using Category 3 single wall vent pipe.
- All venting must comply with local building codes and manufacturer specifications.

Slika 3: Gotovoview of simplified installation features, including updated cabinet structure, hinged access panel, and suspension points for mounting.
Uputstvo za upotrebu
The Reznor UDXC-45 heater is designed for user-friendly operation. Ensure all gas and electrical connections are securely made and checked by a professional before initial startup.
Pokretanje grijača
- Verify that the gas supply valve to the unit is open.
- Ensure the electrical power to the unit is turned on.
- Podesite termostat na željenu temperaturu. Uređaj će se automatski uključivati i isključivati kako bi održao podešenu temperaturu.
Heating Output Levels
The UDXC-45 features two heating output levels for optimal efficiency:
- Niska vatra (26,145 BTU): Suitable for milder cool days, providing efficient heating without excessive energy consumption.
- Visoka temperatura (37,350 BTU): Engages for colder temperatures, ensuring rapid and effective heating of the space.
Tiha operacija
The unit operates quietly due to its vibration/noise isolated low static pressure axial propeller fan and power venting system. This design minimizes operational noise, making it suitable for environments where sound levels are a consideration.

Figure 4: The Reznor UDXC shop heater's single-burner design offers two BTU outputs for efficient heating in any weather.

Figure 5: The low static pressure axial fan and power venting system ensure optimal air circulation and reduce heat loss.
Video Demonstration: Quiet Operation
This video demonstrates the quiet operation of the Reznor UDXC-45 heater, showcasing the minimal noise produced by the fan during operation. This is particularly useful for environments like workshops or garages where noise levels are a concern.
Video: Hear the quiet operation of the Reznor UDXC-45 heater.
Održavanje
Regular maintenance ensures the longevity and optimal performance of your Reznor UDXC-45 heater. It is recommended that all maintenance be performed by a qualified service technician.
- Godišnja inspekcija: Have the unit inspected annually by a qualified technician to check for proper operation, gas connections, venting, and overall condition.
- čišćenje: Keep the area around the heater clear of obstructions and debris. Periodically clean the exterior of the unit.
- Izmjenjivač topline: The TCORE2 titanium-stabilized aluminized steel heat exchanger is built for durability, but regular checks for any signs of wear or damage are advisable during professional inspections.
- Pristup: The improved cabinet design with a removable front face and a hinged access door panel with a quarter-turn latch simplifies access for maintenance.
Rješavanje problema
If your Reznor UDXC-45 heater is not operating as expected, refer to the following general troubleshooting steps. For complex issues, always contact a qualified service technician.
- Nema grijanja/Uređaj se ne pokreće:
- Provjerite je li ventil za dovod plina otvoren.
- Verify that the electrical power to the unit is on.
- Ensure the thermostat is set to a temperature higher than the ambient room temperature.
- Check the status-indicating LED and the 7-segment display board for error codes, which can assist in diagnosing the issue.
- Neobični zvukovi:
- Ensure the unit is securely mounted and free from vibrations.
- Contact a technician if unusual noises persist, as it may indicate an issue with the fan or other internal components.
- Nedovoljno grijanje:
- Confirm the unit is operating on the appropriate fire level for the ambient temperature.
- Provjerite ima li prepreka u otvorima za usis ili ispuh zraka.
Specifikacije
| Atribut | Vrijednost |
|---|---|
| Brand | Reznor (1HVAC) |
| Broj modela | UDXC-45 |
| Vrsta goriva | Prirodni gas |
| Heat Output (High Fire) | 37,350 britanskih termalnih jedinica |
| Heat Output (Low Fire) | 26,145 britanskih termalnih jedinica |
| Termička efikasnost | 83% |
| Unutrašnja/vanjska upotreba | Indoor |
| Vrsta montaže | Ceiling Mount / Wall Mount (with separate brackets) |
| Dimenzije proizvoda | 29.75"D x 27"Š x 13.75"H |
| Težina artikla | 60.9 funte |
| Broj brzina | 2 |
| Posebna karakteristika | Brzo zagrijavanje, tihi rad |

Figure 6: Physical dimensions of the 45,000 BTU Reznor unit heater.
Garancija i podrška
Pokrivenost garancije
Reznor UDXC-45 grijač dolazi sa sljedećim garancijskim pokrićem:
- 9 godina garancije: Sklop izmjenjivača topline, gorionika i kutije za sakupljanje dimnih plinova.
- 4 godina garancije: Sve električne i mehaničke komponente.
To ensure a valid warranty, installation must comply with all local and state codes.
Korisnička podrška
For technical assistance, warranty claims, or service inquiries, please contact the manufacturer's authorized service center or your original point of purchase. Always provide your model number (UDXC-45) and serial number when contacting support.





