1. Kupu Whakataki
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.

Whakaahua 1: Mua 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. Nga korero haumaru
WHAKATŪPATO: Ko te whakaurunga, te whakatikatika, te whakarereketanga, te ratonga, te tiaki ranei ka taea te kino o nga rawa, te whara, te mate ranei. Pānuihia nga tohutohu whakaurunga, whakahaere me te tiaki i mua i te whakauru, te mahi ranei i tenei taputapu.
- Ensure all local codes and ordinances are followed during installation.
- Ko te whakaurunga me te ratonga me mahi e tetahi kaitautauta whai mana, umanga ratonga, kaiwhakarato hau ranei.
- Kaua e penapena, e whakamahi ranei i te penehīni, i etahi atu kohu me nga wai e mura ana ki te taha tata o tenei taputapu ranei.
- Ko tenei waahanga kua hoahoahia mo te whakamahi i roto noa iho.
3. Tatūnga me te Tāuta
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 Whakapiki
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 Whakaorooro
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 Hononga Hau
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 Waea Hiko
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. Nga Tohutohu Whakahaere
The Reznor UDXC-150 is designed for efficient and quiet heating.
4.1 Whakaohoatanga Tuatahi
- Ensure all gas and electrical connections are secure and verified by a professional.
- Whakakāhia te tuku hau ki te waeine.
- Whakahokia te mana hiko ki te waeine.
- Set the thermostat to the desired temperature. The unit will initiate its ignition sequence.
4.2 Te Mahi Noa
- 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. Tiaki
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.
- Me whakarite kia noho marama te uru o te hau me nga hau whakamomori i nga arai.
- Verify that the external gas connection is secure and free of leaks.
5.2 Ratonga ā-Tau
- 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. Te Raru
The UDXC-150 unit heater includes features to assist with troubleshooting common issues.
| Raruraru | Take pea | Rongoā |
|---|---|---|
| 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. |
| Nga haruru rereke i te wa e mahi ana | 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. Whakatakotoranga
| Āhuahira | Taipitopito |
|---|---|
| Tau tauira | UDXC-150 |
| Putanga Wera | 150,000 Nga Waahanga o Ingarangi (BTU) |
| Momo wahie | Hau Maori |
| Te Manawaariki | 83% |
| Rahi Hua (D x W x H) | 48.44" x 38.19" x 20.13" |
| Momo Whakaeke | Ceiling Mount, Wall Mount (brackets sold separately) |
| Momo Rūma | Garage, Warehouse, Commercial/Industrial Spaces |
| Nga waahanga motuhake | Energy Efficient, Fast Heating, Low Noise Operation, TCORE2 Titanium-Stabilized Aluminized Steel Heat Exchanger, 7-Segment Display Board |
| Te maha o nga tere | 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. Hua Ataata
Kāore i kitea he ataata hua mana mai i te kaihoko i roto i ngā raraunga kua whakaratohia hei tāpiri ki tēnei pukapuka.
9. Nga Korero Whakaputanga
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. Tautoko me te Whakapā
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
Mo etahi atu korero, ka taea e koe te toro ki te 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.